{"title":"FuelTech Unterminated Harnesses","description":"\u003cstyle\u003e\n.ase-post{line-height:1.7;color:#1c1c1c;}\n.ase-post h2{margin-top:2.2em;margin-bottom:0.6em;font-size:1.5em;border-bottom:2px solid #eaeaea;padding-bottom:8px;}\n.ase-post h3{margin-top:1.6em;font-size:1.15em;}\n.ase-lede{font-size:1.15em;color:#444;}\n.ase-callout{background:#f2f6fb;border-left:4px solid #1a5cff;padding:16px 20px;margin:26px 0;border-radius:6px;}\n.ase-callout strong{color:#1a5cff;}\n.ase-callout.warn{border-left-color:#d9822b;background:#fff8ee;}\n.ase-callout.warn strong{color:#d9822b;}\n.ase-callout.check{border-left-color:#1f9d55;background:#f0faf3;}\n.ase-callout.check strong{color:#1f9d55;}\n.ase-table{width:100%;border-collapse:collapse;margin:28px 0;font-size:0.95em;}\n.ase-table th,.ase-table td{border:1px solid #e0e0e0;padding:10px 14px;text-align:left;vertical-align:top;}\n.ase-table th{background:#14142b;color:#fff;font-weight:600;}\n.ase-table tr:nth-child(even){background:#f8f9fb;}\n\u003c\/style\u003e\n\u003cdiv class=\"ase-post\"\u003e\n\n\u003cp class=\"ase-lede\"\u003eUnterminated harnesses have the FuelTech connector on one end and labelled loose wires on the other, for custom installs where no complete harness fits.\u003c\/p\u003e\n\u003ch2\u003eChoosing an unterminated harness\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eECU harnesses\u003c\/strong\u003e — FT250 through FT700. The FT550 needs both A and B harnesses; order the B harness alone only when upgrading from an FT450. Common lengths are 10 ft and 20 ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition harnesses\u003c\/strong\u003e — for SparkPRO-1 to SparkPRO-8 and FTSPARK-4, -6, -8 and Extreme.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule harnesses\u003c\/strong\u003e — peak \u0026amp; hold drivers, WB-O2 Nano and NanoPRO, EGT-4 CAN, input expander and GearController.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDyno extensions\u003c\/strong\u003e — extension harnesses for older FT-series ECUs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBack to the full \u003ca href=\"\/collections\/fueltech-wiring-harnesses\"\u003eFuelTech Wiring Harnesses range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"fueltech-4x-wb-o2-nano-harness","title":"FuelTech 4x WB-O2 Nano Harness","description":"\u003cp\u003eThis harness ties up to four FuelTech WB-O2 Nano wideband controllers into one tidy installation. It is built for setups running one O2 sensor per cylinder, where per-cylinder lambda data is used for tuning and closed loop control, and it saves wiring four controllers separately.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects up to four WB-O2 Nano controllers\u003c\/li\u003e\n\u003cli\u003eWorks with the new WB-O2 Nano and the WB-O2 Nano (V1)\u003c\/li\u003e\n\u003cli\u003eLength: 6.5 ft\u003c\/li\u003e\n\u003cli\u003eSuited to one-sensor-per-cylinder closed loop setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eNew WB-O2 Nano and WB-O2 Nano (V1) wideband O2 controllers.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.fueltech.net\/blogs\/support\/how-to-install-a-fueltech-wb-o2-nano\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech WB-O2 Nano installation guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How many WB-O2 Nano controllers does this harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Up to four.\"}},{\"@type\":\"Question\",\"name\":\"Does it work with the original WB-O2 Nano (V1)?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It is compatible with both the new WB-O2 Nano and the WB-O2 Nano (V1).\"}},{\"@type\":\"Question\",\"name\":\"How long is the harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is 6.5 ft long.\"}},{\"@type\":\"Question\",\"name\":\"Who is this harness for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Builds running one wideband O2 sensor per cylinder that want per-cylinder data for tuning and closed loop control, with up to four controllers on one harness.\"}},{\"@type\":\"Question\",\"name\":\"Are the WB-O2 Nano controllers included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only; the controllers and O2 sensors are sold separately.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"6.5ft","offer_id":50629575639257,"sku":"2001006093","price":219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-WB-O2-Nano-Wideband-O2-Sensor-Controller-Wiring-Harness.png?v=1791472525"},{"product_id":"fueltech-alcohol-o2-dual-channel-harness","title":"FuelTech Alcohol O2 - Dual Channel Harness","description":"\u003cp\u003eThe wiring harness for FuelTech's dual channel Alcohol O2 conditioner. It comes pre-wired for two O2 sensors, with the vehicle side left unterminated for a custom install.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech Alcohol O2 dual channel conditioner\u003c\/li\u003e\n\u003cli\u003ePre-wired for 2 O2 sensors\u003c\/li\u003e\n\u003cli\u003eLength: 8 ft\u003c\/li\u003e\n\u003cli\u003eUnterminated vehicle side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does this harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is the harness for the FuelTech Alcohol O2 dual channel unit and comes pre-wired for two O2 sensors.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"8 ft.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"Is the Alcohol O2 conditioner included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}},{\"@type\":\"Question\",\"name\":\"How many O2 sensors does it support?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Two; it is pre-wired for two O2 sensors.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629597954265,"sku":"2001003289","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/Alcohol_O2_unterminated.png?v=1791472602"},{"product_id":"fueltech-ft250-300-350-400-dyno-extension-main-harness","title":"FuelTech FT250\/300\/350\/400 Dyno Extension - Main Harness","description":"\u003cp\u003eA 13 ft extension for the main harness on FuelTech FT250, FT300, FT350 and FT400 ECUs. With a male plug on one end and a female plug on the other, it connects between the ECU and the existing main harness to give extra reach on a dynamometer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits the FT250\/FT300\/FT350\/FT400 main harness\u003c\/li\u003e\n\u003cli\u003e24-way\u003c\/li\u003e\n\u003cli\u003eMale and female plugs\u003c\/li\u003e\n\u003cli\u003eLength: 13 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the dyno extension harness for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It extends the main harness of the FT250, FT300, FT350 and FT400 on dynamometers.\"}},{\"@type\":\"Question\",\"name\":\"Is it plug-and-play?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It has a male plug and a female plug so it connects between the ECU and the existing main harness.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"13 ft.\"}},{\"@type\":\"Question\",\"name\":\"How many circuits does it carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is a 24-way harness.\"}},{\"@type\":\"Question\",\"name\":\"Does it extend the FT400 auxiliary harness too?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This is the main harness extension. The FT400 auxiliary harness has its own 16-way dyno extension.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629598183641,"sku":"2002001669","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT250_300_350_400_dyno_ext.png?v=1791472603"},{"product_id":"fueltech-ft250-300-350-400-unterminated-main-harness","title":"FuelTech FT250\/300\/350\/400 Unterminated Main Harness","description":"\u003cp\u003eThe unterminated main harness for FuelTech's FT200, FT250, FT300, FT350 and FT400 ECUs. The ECU plug comes installed and the remaining wires are left open for a custom install. FuelTech lists rear-engine vehicles as a typical application.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits FT200, FT250, FT300, FT350 and FT400\u003c\/li\u003e\n\u003cli\u003e24-way main connector\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ECUs does this main harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech FT200, FT250, FT300, FT350 and FT400.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"How many ways is the connector?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"24-way.\"}},{\"@type\":\"Question\",\"name\":\"Do I need anything else for an FT400?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FT400 also uses a separate 16-way auxiliary harness, sold separately.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft","offer_id":50629598249177,"sku":"2001001029","price":79.0,"currency_code":"USD","in_stock":true},{"title":"20ft","offer_id":50629598281945,"sku":"2001001266","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT250_300_350_400_main.png?v=1791472604"},{"product_id":"fueltech-ft400-dyno-extension-auxiliary-harness","title":"FuelTech FT400 Dyno Extension - Auxiliary Harness","description":"\u003cp\u003eA 13 ft extension for the FT400's auxiliary harness, used on dynamometers to move the ECU away from the vehicle. Male and female plugs let it drop in between the ECU and the existing auxiliary harness.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech FT400 auxiliary harness\u003c\/li\u003e\n\u003cli\u003e16-way\u003c\/li\u003e\n\u003cli\u003eMale and female plugs\u003c\/li\u003e\n\u003cli\u003eLength: 13 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does the FT400 auxiliary dyno extension do?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It extends the FT400's auxiliary harness on dynamometers.\"}},{\"@type\":\"Question\",\"name\":\"Is it plug-and-play?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It has male and female plugs to connect between the ECU and the existing auxiliary harness.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"13 ft.\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"16-way.\"}},{\"@type\":\"Question\",\"name\":\"Does it extend the main harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The main harness uses the separate 24-way FT250\/300\/350\/400 dyno extension.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629598314713,"sku":"2001002171","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT400aux_dyno_ext.png?v=1791472605"},{"product_id":"fueltech-ft400-unterminated-auxiliary-harness","title":"FuelTech FT400 Unterminated Auxiliary Harness","description":"\u003cp\u003eThe unterminated auxiliary harness for the FuelTech FT400. It plugs into the FT400's auxiliary connector and leaves the other end open so the installer can wire the extra inputs and outputs to suit the vehicle.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech FT400 auxiliary connector\u003c\/li\u003e\n\u003cli\u003e16-way\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ECU is this auxiliary harness for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech FT400.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"16-way.\"}},{\"@type\":\"Question\",\"name\":\"Does it replace the main harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The FT400 uses the 24-way FT250\/300\/350\/400 main harness in addition to this auxiliary harness.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft","offer_id":50629626790105,"sku":"2001001031","price":69.0,"currency_code":"USD","in_stock":true},{"title":"20ft","offer_id":50629626822873,"sku":"2001001267","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT400_aux.png?v=1791473018"},{"product_id":"fueltech-ft450-550-a-unterminated-harness","title":"FuelTech FT450\/550 A Unterminated Harness","description":"\u003cp\u003eThe unterminated harness for the \"A\" connector shared by the FuelTech FT450 and FT550. An FT550 install pairs it with the FT550 B harness, which is required alongside it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits the A connector on the FT450 and FT550\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft length\u003c\/li\u003e\n\u003cli\u003eUnterminated vehicle side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFuelTech FT450 and FT550. FT550 installs require both the A and B harnesses; the FT550 Unterminated Harness listing offers the pair or the B harness alone.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does this harness fit both the FT450 and FT550?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It is the harness for the A connector used on both ECUs.\"}},{\"@type\":\"Question\",\"name\":\"Do I need anything else for an FT550?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The FT550 requires both the A and B harnesses. The B harness is sold separately or as a pair in the FT550 Unterminated Harness listing.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"I am upgrading from an FT450 to an FT550. Do I need a new A harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. FuelTech offers the FT550 B harness by itself for customers upgrading from an FT450, so the existing A harness can stay.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft","offer_id":50629626855641,"sku":"2001005569","price":139.0,"currency_code":"USD","in_stock":true},{"title":"20ft","offer_id":50629626888409,"sku":"2001005570","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT450_550A.png?v=1791473019"},{"product_id":"fueltech-ft500-dyno-extension-harness","title":"FuelTech FT500 Dyno Extension Harness","description":"\u003cp\u003eAn extension for an existing FuelTech FT500 harness, used on dynamometers so the ECU can be positioned away from the vehicle during tuning sessions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech FT500\u003c\/li\u003e\n\u003cli\u003eExtends an existing FT500 harness\u003c\/li\u003e\n\u003cli\u003eIntended for dyno use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the FT500 dyno extension for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is used on dynamometers to extend an existing FT500 harness.\"}},{\"@type\":\"Question\",\"name\":\"Which ECU does it fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech FT500.\"}},{\"@type\":\"Question\",\"name\":\"Does it replace the FT500 harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It extends an existing FT500 harness; the vehicle harness is still required.\"}},{\"@type\":\"Question\",\"name\":\"Is it the same as the FT250\/300\/350\/400 dyno extension?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. That extension is a 24-way harness for the FT250 to FT400 main connector. This one is specific to the FT500.\"}},{\"@type\":\"Question\",\"name\":\"Is the ECU included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the extension harness only.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629627117785,"sku":"2002003024","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT500_dyno_extension.png?v=1791473021"},{"product_id":"fueltech-ft500-unterminated-harness","title":"FuelTech FT500 Unterminated Harness","description":"\u003cp\u003eThe unterminated harness for the FuelTech FT500 ECU, for installs where the engine wiring is being built from scratch. The ECU connector end is finished and the rest is left open for the installer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech FT500\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft length\u003c\/li\u003e\n\u003cli\u003eUnterminated vehicle side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ECU does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech FT500.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"Is there a dyno extension for the FT500?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. FuelTech offers a separate FT500 Dyno Extension Harness.\"}},{\"@type\":\"Question\",\"name\":\"Is the ECU included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft","offer_id":50629627183321,"sku":"2001002772","price":159.0,"currency_code":"USD","in_stock":true},{"title":"20ft","offer_id":50629627216089,"sku":"2001002773","price":209.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT500_unterminated.png?v=1791473021"},{"product_id":"fueltech-ft550-unterminated-harness","title":"FuelTech FT550 Unterminated Harness","description":"\u003cp\u003eUnterminated wiring for the FuelTech FT550. A full FT550 install needs both the A and B harnesses, so the A \u0026amp; B options supply the pair. The B-only options exist for owners upgrading from an FT450, who already have the A harness in the car.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA \u0026amp; B harness set: both required for an FT550 install\u003c\/li\u003e\n\u003cli\u003eB harness alone: for FT450 to FT550 upgrades\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft lengths\u003c\/li\u003e\n\u003cli\u003eUnterminated vehicle side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eContents\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10ft - A \u0026amp; B Harnesses\u003c\/td\u003e\n\u003ctd\u003e10 ft A harness + 10 ft B harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20ft - A \u0026amp; B Harnesses\u003c\/td\u003e\n\u003ctd\u003e20 ft A harness + 20 ft B harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10ft - B Harness\u003c\/td\u003e\n\u003ctd\u003e10 ft B harness only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20ft - B Harness\u003c\/td\u003e\n\u003ctd\u003e20 ft B harness only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Do I need both the A and B harness for an FT550?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Both harnesses are required for an FT550 installation.\"}},{\"@type\":\"Question\",\"name\":\"When should I order the B harness by itself?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Only when upgrading from an FT450, since the FT450 already uses the A harness.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft, for either the A \u0026 B pair or the B harness alone.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"Is the FT550 ECU included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft - A \u0026 B Harnesses","offer_id":50629632000217,"sku":"2001005569 \/ 2001005571","price":278.0,"currency_code":"USD","in_stock":true},{"title":"20ft - A \u0026 B Harnesses","offer_id":50629632032985,"sku":"2001005570 \/ 2001005572","price":378.0,"currency_code":"USD","in_stock":true},{"title":"10ft - B Harness","offer_id":50629632065753,"sku":"2001005571","price":139.0,"currency_code":"USD","in_stock":true},{"title":"20ft - B Harness","offer_id":50629632098521,"sku":"2001005572","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT550_B.png?v=1791473136"},{"product_id":"fueltech-ft600-unterminated-harness","title":"FuelTech FT600 \/ FT700 A \u0026 B Unterminated Harness","description":"\u003cp\u003eThe A \u0026amp; B unterminated harness set for installing a FuelTech FT600 or FT700 when the engine wiring is being built from scratch. Every wire carries printed identification, so each circuit can be identified while routing and terminating it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes both the FT600\/FT700 A and B harnesses\u003c\/li\u003e\n\u003cli\u003ePrinted identification on each wire\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft length\u003c\/li\u003e\n\u003cli\u003eUnterminated vehicle side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cp\u003eOn the FT700 and FT700PLUS, the optional C \u0026amp; D Unterminated Harness adds the internal wideband O2 controllers and extra inputs and outputs.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does this harness work with both the FT600 and FT700?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It is the A and B harness set for installing either the FT600 or FT700.\"}},{\"@type\":\"Question\",\"name\":\"Are both A and B harnesses included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The set consists of the FT600\/FT700 A and FT600\/FT700 B harnesses.\"}},{\"@type\":\"Question\",\"name\":\"Are the wires labeled?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Each wire has its identification printed on it.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft.\"}},{\"@type\":\"Question\",\"name\":\"Do I also need the C \u0026 D harness on an FT700?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is not required, but the C \u0026 D harness is needed to use the FT700's two internal wideband O2 controllers and its additional inputs and outputs.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft","offer_id":50629632164057,"sku":"2001004001","price":329.0,"currency_code":"USD","in_stock":true},{"title":"20ft","offer_id":50629632196825,"sku":"2001004003","price":419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FT600_unterminated.png?v=1791473137"},{"product_id":"fueltech-ft700-c-d-unterminated-harness","title":"FuelTech FT700 C \u0026 D Unterminated Harness","description":"\u003cp\u003eThe C \u0026amp; D harness is the optional second half of an FT700 or FT700PLUS install. The ECU runs without it, but this harness is what unlocks the ECU's two internal wideband O2 controllers and a large block of additional inputs and outputs, and FuelTech strongly recommends it for that reason.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech FT700 and FT700PLUS\u003c\/li\u003e\n\u003cli\u003eRequired to use the two internal wideband O2 controllers\u003c\/li\u003e\n\u003cli\u003eAdds a substantial number of inputs and outputs\u003c\/li\u003e\n\u003cli\u003e10 ft or 20 ft length\u003c\/li\u003e\n\u003cli\u003eUnterminated vehicle side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFuelTech FT700 and FT700PLUS. Used alongside the FT600\/FT700 A \u0026amp; B harness.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is the C \u0026 D harness required to run an FT700?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is optional, but it is needed to use the full capabilities of the FT700 or FT700PLUS.\"}},{\"@type\":\"Question\",\"name\":\"What does the C \u0026 D harness add?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is required to use the ECU's two internal wideband O2 sensor controllers and it substantially increases the available inputs and outputs.\"}},{\"@type\":\"Question\",\"name\":\"Does it work with the FT700PLUS?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. It is designed for both the FT700 and the FT700PLUS.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft and 20 ft.\"}},{\"@type\":\"Question\",\"name\":\"Do I still need the A \u0026 B harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The C \u0026 D harness supplements the FT600\/FT700 A \u0026 B harness; it does not replace it.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"10ft","offer_id":50629632295129,"sku":"2001008771","price":329.0,"currency_code":"USD","in_stock":true},{"title":"20ft","offer_id":50629632327897,"sku":"2001008772","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-FT700-Wiring-Harness-3.jpg?v=1791473139"},{"product_id":"fueltech-ft700-multimedia-m-harness","title":"FuelTech FT700 Multimedia M Harness","description":"\u003cp\u003eThe Multimedia M harness connects a FuelTech FT700 or FT700PLUS to external multimedia components, bringing features such as audio and video inputs into the system through a dedicated harness rather than custom wiring.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech FT700 and FT700PLUS\u003c\/li\u003e\n\u003cli\u003eConnects external multimedia devices\u003c\/li\u003e\n\u003cli\u003eSupports features such as audio\/video inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ECUs use the Multimedia M harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech FT700 and FT700PLUS.\"}},{\"@type\":\"Question\",\"name\":\"What does it connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It links the ECU to external multimedia components, enabling features such as audio and video inputs.\"}},{\"@type\":\"Question\",\"name\":\"Is it required to run the ECU?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is an add-on for multimedia features; engine wiring is handled by the A \u0026 B and optional C \u0026 D harnesses.\"}},{\"@type\":\"Question\",\"name\":\"Is it the same as the C \u0026 D harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The C \u0026 D harness adds wideband O2 controllers and engine inputs and outputs; the M harness is for multimedia devices.\"}},{\"@type\":\"Question\",\"name\":\"Is the ECU included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629632393433,"sku":"2001011026","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-FT700-Multimedia-Wiring-Harness-2.jpg?v=1791473141"},{"product_id":"fueltech-ftspark-extreme-harness","title":"FuelTech FTSPARK EXTREME Harness","description":"\u003cp\u003eThe FTSPARK EXTREME harness is the wiring link between FuelTech's FTSPARK EXTREME capacitive discharge ignition module and the rest of the car: the ECU, power feed, vehicle wiring and ignition coils. It is built to hold up in demanding racing environments and is designed around FuelTech's CDI Racing Ignition Coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects the FTSPARK EXTREME CDI ignition module to the ECU, power, vehicle wiring and ignition coils\u003c\/li\u003e\n\u003cli\u003eMatched to FuelTech CDI Racing Ignition Coils\u003c\/li\u003e\n\u003cli\u003eRacing-grade construction for high-performance use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFTSPARK EXTREME Ignition Module\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Bracket Kit\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Plug Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Ingles\/FTSPARK.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech FTSPARK manual (PDF) – see the wiring harness section\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does the FTSPARK EXTREME harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It connects the FTSPARK EXTREME CDI module to the ECU, power source, vehicle wiring and ignition coils.\"}},{\"@type\":\"Question\",\"name\":\"Which ignition coils is it designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is optimized for FuelTech CDI Racing Ignition Coils.\"}},{\"@type\":\"Question\",\"name\":\"Is the FTSPARK EXTREME ignition module included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only; the module, coils, coil brackets and coil plug kits are sold separately.\"}},{\"@type\":\"Question\",\"name\":\"Where can I find the wiring details?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"See the wiring harness section of the FuelTech FTSPARK product manual.\"}},{\"@type\":\"Question\",\"name\":\"Is it plug-and-play?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is an unterminated harness. The module end is finished and the vehicle side is wired by the installer.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629635965145,"sku":"2001007538","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-FTSPARK-extreme-unterminated-wiring-harness.png?v=1791473258"},{"product_id":"fueltech-ftspark-4-harness","title":"FuelTech FTSPARK-4 Harness","description":"\u003cp\u003eThe FTSPARK-4 harness is the wiring link between FuelTech's FTSPARK-4 capacitive discharge ignition module and the rest of the car: the ECU, power feed, vehicle wiring and ignition coils. It is built to hold up in demanding racing environments and is designed around FuelTech's CDI Racing Ignition Coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects the FTSPARK-4 CDI ignition module to the ECU, power, vehicle wiring and ignition coils\u003c\/li\u003e\n\u003cli\u003eMatched to FuelTech CDI Racing Ignition Coils\u003c\/li\u003e\n\u003cli\u003eRacing-grade construction for high-performance use\u003c\/li\u003e\n\u003cli\u003eAdditional connectors required to complete the install\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFTSPARK-4 Ignition Module\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Bracket Kit\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Plug Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Ingles\/FTSPARK.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech FTSPARK manual (PDF) – see the wiring harness section\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does the FTSPARK-4 harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It connects the FTSPARK-4 CDI module to the ECU, power source, vehicle wiring and ignition coils.\"}},{\"@type\":\"Question\",\"name\":\"Which ignition coils is it designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is optimized for FuelTech CDI Racing Ignition Coils.\"}},{\"@type\":\"Question\",\"name\":\"Is the FTSPARK-4 ignition module included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only; the module, coils, coil brackets and coil plug kits are sold separately.\"}},{\"@type\":\"Question\",\"name\":\"Where can I find the wiring details?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"See the wiring harness section of the FuelTech FTSPARK product manual.\"}},{\"@type\":\"Question\",\"name\":\"Is it plug-and-play?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is an unterminated harness. FuelTech notes that additional connectors are required.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629635997913,"sku":"5015006520","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-FTSPARK-4-CDI-Ignition-Module-Wiring-Harness.jpg?v=1791473260"},{"product_id":"fueltech-ftspark-6-harness","title":"FuelTech FTSPARK-6 Harness","description":"\u003cp\u003eThe FTSPARK-6 harness is the wiring link between FuelTech's FTSPARK-6 capacitive discharge ignition module and the rest of the car: the ECU, power feed, vehicle wiring and ignition coils. It is built to hold up in demanding racing environments and is designed around FuelTech's CDI Racing Ignition Coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects the FTSPARK-6 CDI ignition module to the ECU, power, vehicle wiring and ignition coils\u003c\/li\u003e\n\u003cli\u003eMatched to FuelTech CDI Racing Ignition Coils\u003c\/li\u003e\n\u003cli\u003eRacing-grade construction for high-performance use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFTSPARK-6 Ignition Module\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Bracket Kit\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Plug Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Ingles\/FTSPARK.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech FTSPARK manual (PDF) – see the wiring harness section\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does the FTSPARK-6 harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It connects the FTSPARK-6 CDI module to the ECU, power source, vehicle wiring and ignition coils.\"}},{\"@type\":\"Question\",\"name\":\"Which ignition coils is it designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is optimized for FuelTech CDI Racing Ignition Coils.\"}},{\"@type\":\"Question\",\"name\":\"Is the FTSPARK-6 ignition module included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only; the module, coils, coil brackets and coil plug kits are sold separately.\"}},{\"@type\":\"Question\",\"name\":\"Where can I find the wiring details?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"See the wiring harness section of the FuelTech FTSPARK product manual.\"}},{\"@type\":\"Question\",\"name\":\"Is it plug-and-play?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is an unterminated harness. The module end is finished and the vehicle side is wired by the installer.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629636030681,"sku":"5015006521","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-FTSPARK-6-CDI-Ignition-Module-Wiring-Harness.jpg?v=1791473260"},{"product_id":"fueltech-ftspark-8-harness","title":"FuelTech FTSPARK-8 Harness","description":"\u003cp\u003eThe FTSPARK-8 harness is the wiring link between FuelTech's FTSPARK-8 capacitive discharge ignition module and the rest of the car: the ECU, power feed, vehicle wiring and ignition coils. It is built to hold up in demanding racing environments and is designed around FuelTech's CDI Racing Ignition Coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnects the FTSPARK-8 CDI ignition module to the ECU, power, vehicle wiring and ignition coils\u003c\/li\u003e\n\u003cli\u003eMatched to FuelTech CDI Racing Ignition Coils\u003c\/li\u003e\n\u003cli\u003eRacing-grade construction for high-performance use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFTSPARK-8 Ignition Module\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Bracket Kit\u003c\/li\u003e\n\u003cli\u003eCDI Racing Ignition Coil Plug Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Ingles\/FTSPARK.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech FTSPARK manual (PDF) – see the wiring harness section\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does the FTSPARK-8 harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It connects the FTSPARK-8 CDI module to the ECU, power source, vehicle wiring and ignition coils.\"}},{\"@type\":\"Question\",\"name\":\"Which ignition coils is it designed for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is optimized for FuelTech CDI Racing Ignition Coils.\"}},{\"@type\":\"Question\",\"name\":\"Is the FTSPARK-8 ignition module included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only; the module, coils, coil brackets and coil plug kits are sold separately.\"}},{\"@type\":\"Question\",\"name\":\"Where can I find the wiring details?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"See the wiring harness section of the FuelTech FTSPARK product manual.\"}},{\"@type\":\"Question\",\"name\":\"Is it plug-and-play?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is an unterminated harness. The module end is finished and the vehicle side is wired by the installer.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629636063449,"sku":"5015006522","price":209.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-FTSPARK-8-CDI-Ignition-Module-Wiring-Harness.jpg?v=1791473261"},{"product_id":"fueltech-gearcontroller-harness","title":"FuelTech GearController Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech GearController. The controller plug is installed and the 24 circuits run 3 m (9.8 ft) to an open end for wiring into the vehicle.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech GearController\u003c\/li\u003e\n\u003cli\u003e24-way\u003c\/li\u003e\n\u003cli\u003eLength: 3 m (9.8 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which FuelTech unit does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech GearController.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"3 m (9.8 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"24-way.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The harness carries the FuelTech connector on the module end, while the other end is left as open wire so the installer can route and terminate it for the specific vehicle.\"}},{\"@type\":\"Question\",\"name\":\"Is the GearController included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629649432793,"sku":"2001003991","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/Gearcontroller_unterminated.png?v=1791473364"},{"product_id":"fueltech-wb-o2-nano-harness","title":"FuelTech Nano \u0026 NanoPRO LSU4.2 Harness","description":"\u003cp\u003eThis harness connects a FuelTech wideband O2 controller to a Bosch LSU4.2 sensor. It fits the new WB-O2 Nano, the original WB-O2 Nano (V1) and the NanoPRO, and comes in three lengths to suit the controller placement.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor Bosch LSU4.2 wideband O2 sensors\u003c\/li\u003e\n\u003cli\u003eFits the new WB-O2 Nano, WB-O2 Nano (V1) and NanoPRO\u003c\/li\u003e\n\u003cli\u003e6.5 ft (2 m): recommended for most applications\u003c\/li\u003e\n\u003cli\u003eAlso offered in 3 ft (1 m) and 15 ft (4.5 m)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cp\u003eRunning a Bosch LSU4.9 sensor on a NanoPRO? Use the NanoPRO LSU 4.9 harness instead.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which O2 sensor does this harness work with?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Bosch LSU4.2 wideband O2 sensor.\"}},{\"@type\":\"Question\",\"name\":\"Which FuelTech controllers is it compatible with?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The new WB-O2 Nano, the WB-O2 Nano (V1) and the NanoPRO.\"}},{\"@type\":\"Question\",\"name\":\"Which length should I choose?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 6.5 ft (2 m) length is recommended for most applications. 3 ft (1 m) and 15 ft (4.5 m) versions are also available.\"}},{\"@type\":\"Question\",\"name\":\"Can I use it with a Bosch LSU4.9 sensor?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This harness is for the LSU4.2. FuelTech offers a separate NanoPRO harness for the LSU4.9.\"}},{\"@type\":\"Question\",\"name\":\"Is the sensor or controller included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"6.5ft","offer_id":50629649465561,"sku":"2001003625","price":69.0,"currency_code":"USD","in_stock":true},{"title":"3ft","offer_id":50629649498329,"sku":"2001006086","price":59.0,"currency_code":"USD","in_stock":true},{"title":"15ft","offer_id":50629649531097,"sku":"2001003839","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/Nano_unterminated.png?v=1791473365"},{"product_id":"fueltech-wb-o2-nano-pro-4-9-harness","title":"FuelTech NanoPRO Wideband O2 Sensor Controller to Bosch LSU 4.9 Sensor Wiring Harness","description":"\u003cp\u003eThe wiring harness that connects a FuelTech NanoPRO wideband controller to a Bosch LSU 4.9 O2 sensor. It is offered in a 6.5 ft length that suits most installs and a longer 15 ft version.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech NanoPRO\u003c\/li\u003e\n\u003cli\u003eFor Bosch LSU 4.9 wideband O2 sensors\u003c\/li\u003e\n\u003cli\u003e6.5 ft (2 m): typical for most applications\u003c\/li\u003e\n\u003cli\u003e15 ft (4.5 m) long version\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eFuelTech NanoPRO only. Not compatible with the WB-O2 Nano V1.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which FuelTech controller does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech NanoPRO.\"}},{\"@type\":\"Question\",\"name\":\"Which O2 sensor is it for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is designed specifically for the Bosch LSU 4.9 sensor.\"}},{\"@type\":\"Question\",\"name\":\"Will it work with a WB-O2 Nano V1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is not compatible with the WB-O2 Nano V1.\"}},{\"@type\":\"Question\",\"name\":\"What lengths are available?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"6.5 ft (2 m), the typical size for most applications, and 15 ft (4.5 m).\"}},{\"@type\":\"Question\",\"name\":\"I run an LSU4.2 sensor. Which harness do I need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use the Nano \u0026 NanoPRO LSU4.2 harness, which fits LSU4.2 sensors on the WB-O2 Nano, Nano V1 and NanoPRO.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"6.5ft","offer_id":50629649563865,"sku":"2001010315","price":69.0,"currency_code":"USD","in_stock":true},{"title":"15ft","offer_id":50629649596633,"sku":"2001010334","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/ShortHarness.png?v=1791473365"},{"product_id":"fueltech-peak-hold-harness","title":"FuelTech Peak \u0026 Hold Harness","description":"\u003cp\u003eThe unterminated harness for the FuelTech Peak \u0026amp; Hold injector driver, compatible with all current versions of the driver.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003cli\u003eFits all current Peak \u0026amp; Hold versions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which Peak \u0026 Hold versions does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"All current versions of the FuelTech Peak \u0026 Hold.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629649629401,"sku":"2001000044","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/Peak_Hold_unterminated.png?v=1791473367"},{"product_id":"fueltech-peak-hold-pro-harness","title":"FuelTech Peak \u0026 Hold PRO Harness","description":"\u003cp\u003eThis harness wires FuelTech's Peak \u0026amp; Hold PRO injector driver into the engine management system. The driver is what lets an ECU control high-performance low impedance injectors accurately, and this is the harness that connects it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech Peak \u0026amp; Hold PRO injector driver\u003c\/li\u003e\n\u003cli\u003eUsed with low impedance fuel injectors\u003c\/li\u003e\n\u003cli\u003eBuilt for demanding race applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does the Peak \u0026 Hold PRO harness connect?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It connects the FuelTech Peak \u0026 Hold PRO injector driver to the engine management system.\"}},{\"@type\":\"Question\",\"name\":\"What injectors is the Peak \u0026 Hold PRO used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"High-performance low impedance fuel injectors.\"}},{\"@type\":\"Question\",\"name\":\"Is this the same as the Peak \u0026 Hold Harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. FuelTech lists a separate 10-way Peak \u0026 Hold Harness for the standard Peak \u0026 Hold driver.\"}},{\"@type\":\"Question\",\"name\":\"Is the injector driver included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}},{\"@type\":\"Question\",\"name\":\"Who is it for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Tuners and racers running low impedance injectors through a Peak \u0026 Hold PRO driver.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629653299417,"sku":"2001007186","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/FuelTech-Peak_Hold-RO-Wiring-arness.png?v=1791473458"},{"product_id":"fueltech-peak-hold-pro-hv-8-harness","title":"FuelTech PRO HV-8 Harness","description":"\u003cp\u003eThe 6 ft wiring harness for the FuelTech PRO HV-8 injector driver.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech PRO HV-8\u003c\/li\u003e\n\u003cli\u003eLength: 6 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/files.fueltech.net\/manual\/Portugues\/MANUAL_PRO_HV_INJECTOR_DRIVER.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFuelTech PRO HV injector driver manual (PDF, Portuguese)\u003c\/a\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which FuelTech unit is this harness for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech PRO HV-8.\"}},{\"@type\":\"Question\",\"name\":\"How long is the harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"6 ft.\"}},{\"@type\":\"Question\",\"name\":\"Where can I find wiring information?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"FuelTech provides a PRO HV injector driver manual (PDF, in Portuguese) for this harness, linked on this page.\"}},{\"@type\":\"Question\",\"name\":\"Is the PRO HV-8 driver included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only.\"}},{\"@type\":\"Question\",\"name\":\"Is this the same as the Peak \u0026 Hold PRO harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is a separate harness made for the PRO HV-8.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629653364953,"sku":"2001016989","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/PHOTO_P_HPROHVHARNESS.jpg?v=1791473459"},{"product_id":"fueltech-sparkpro-1-harness","title":"FuelTech SparkPRO-1 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-1 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-1\u003c\/li\u003e\n\u003cli\u003e4-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-1.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"4-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629653823705,"sku":"2001000048","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-1_unterminated.png?v=1791473460"},{"product_id":"fueltech-sparkpro-2-harness","title":"FuelTech SparkPRO-2 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-2 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-2\u003c\/li\u003e\n\u003cli\u003e6-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-2.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"6-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629653889241,"sku":"2001000049","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-2_unterminated.png?v=1791473460"},{"product_id":"fueltech-sparkpro-3-harness","title":"FuelTech SparkPRO-3 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-3 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-3\u003c\/li\u003e\n\u003cli\u003e8-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-3.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"8-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629660082393,"sku":"2001000050","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-3_unterminated.png?v=1791473542"},{"product_id":"fueltech-sparkpro-4-harness","title":"FuelTech SparkPRO-4 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-4 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-4\u003c\/li\u003e\n\u003cli\u003e10-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-4.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629660115161,"sku":"2001000051","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-4_unterminated.png?v=1791473543"},{"product_id":"fueltech-sparkpro-5-harness","title":"FuelTech SparkPRO-5 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-5 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-5\u003c\/li\u003e\n\u003cli\u003e12-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-5.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"12-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629660147929,"sku":"2001000052","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-5_unterminated.png?v=1791473543"},{"product_id":"fueltech-sparkpro-6-harness","title":"FuelTech SparkPRO-6 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-6 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-6\u003c\/li\u003e\n\u003cli\u003e14-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-6.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"14-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629660213465,"sku":"2001000053","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-6_unterminated.png?v=1791473545"},{"product_id":"fueltech-sparkpro-8-harness","title":"FuelTech SparkPRO-8 Harness","description":"\u003cp\u003eThe unterminated wiring harness for the FuelTech SparkPRO-8 ignition module. The module connector is installed and the leads are left open to wire to the ECU and coils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech SparkPRO-8\u003c\/li\u003e\n\u003cli\u003e18-way\u003c\/li\u003e\n\u003cli\u003eLength: 2 m (6.5 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which ignition module does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech SparkPRO-8.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2 m (6.5 ft).\"}},{\"@type\":\"Question\",\"name\":\"How many ways is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"18-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629660279001,"sku":"2001003164","price":43.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/SparkPRO-8_unterminated.png?v=1791473545"},{"product_id":"fueltech-wb-o2-datalogger-harness","title":"FuelTech WB-O2 Datalogger Harness","description":"\u003cp\u003eThe unterminated harness for the FuelTech WB-O2 Datalogger. It carries the unit's power feed, its analog channel inputs and its analog output.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor the FuelTech WB-O2 Datalogger\u003c\/li\u003e\n\u003cli\u003eFeed, analog channel inputs and analog output\u003c\/li\u003e\n\u003cli\u003e10-way\u003c\/li\u003e\n\u003cli\u003eLength: 2.5 m (8.2 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which unit does this harness fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech WB-O2 Datalogger.\"}},{\"@type\":\"Question\",\"name\":\"What circuits does it carry?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The feed (power) inputs, the analog channel inputs and the analog output.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"2.5 m (8.2 ft), 10-way.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629660311769,"sku":"2001000056","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/WBO2_Datalogger_unterminated.png?v=1791473546"},{"product_id":"fueltech-egt-4-can-harness","title":"FuelTech EGT-4 CAN \/ SwitchPanel Unterminated Harness","description":"\u003cp\u003eThis 6 ft unterminated harness is used to install a FuelTech EGT-4 CAN signal conditioner, SwitchPanel or Input Expander and tie it into the vehicle's FuelTech engine management system. The module end plugs in; the open end is terminated to suit your installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHarness length: 6.0 ft\u003c\/li\u003e\n\u003cli\u003eUnterminated on the vehicle end\u003c\/li\u003e\n\u003cli\u003eFor EGT-4 CAN, SwitchPanels and the Input Expander\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What modules does this harness work with?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech EGT-4 CAN signal conditioner, FuelTech SwitchPanels and the Input Expander.\"}},{\"@type\":\"Question\",\"name\":\"How long is it?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"6.0 ft.\"}},{\"@type\":\"Question\",\"name\":\"What does unterminated mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The vehicle end has open leads, so you terminate and route them to suit your own harness and installation.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629711462617,"sku":"2001006497","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/EGT-4_unterminated_2.png?v=1791474247"},{"product_id":"fueltech-input-expander-harness","title":"FuelTech FT Input Expander Harness","description":"\u003cp\u003eThe ready-made 10 ft wiring harness for the FuelTech FT Input Expander. It plugs into the module and leaves the sensor ends open so you can route and terminate them to the sensors you are adding.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 10 ft\u003c\/li\u003e\n\u003cli\u003eUnterminated sensor ends\u003c\/li\u003e\n\u003cli\u003eFor the FuelTech FT Input Expander\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated parts\u003c\/h3\u003e\n\u003cp\u003eBuilders making their own harness can use the FT Input Expander Connector Kit instead.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How long is the harness?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"10 ft.\"}},{\"@type\":\"Question\",\"name\":\"Which module does it fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The FuelTech FT Input Expander.\"}},{\"@type\":\"Question\",\"name\":\"Is the Input Expander included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This listing is the harness only; the module is sold separately.\"}}]}\u003c\/script\u003e","brand":"FuelTech","offers":[{"title":"Default Title","offer_id":50629872779481,"sku":"2001007754","price":219.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/Input_Expander_unterminated.jpg?v=1791476150"}],"url":"https:\/\/www.autosportsengineering.com\/collections\/fueltech-unterminated-harnesses.oembed","provider":"Autosports engineering","version":"1.0","type":"link"}