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FuelTech Wiring Harnesses

Harnesses connect a FuelTech ECU to the engine, sensors and accessories. The range runs from pre-terminated engine harnesses to bare unterminated looms, plus adapter harnesses, plug-and-play vehicle harnesses and the connectors to build your own.

What's in this collection

How to choose a harness

  • Complete harness — pre-terminated for an engine family, with relays and fuses built in. The FT550 LS GEN IV harness, for example, supports 58x and 24x triggers and LS3-style coils.
  • Unterminated harness — ECU connector on one end, loose wires on the other, for custom installs. The FT550 needs both A and B harnesses; the B harness alone is for FT450 upgrades.
  • Adapter harness — moves an existing installation to a newer ECU, or links accessories such as peak & hold drivers and wideband controllers.
  • Plug-and-play vehicle harness — plugs into the OEM harness on supported PWCs, UTVs and motorcycles.
  • Connector and plug kits — for repairing a harness or building one from scratch.
Match the ECU model. Harnesses and connector kits are ECU-specific. Check that the listing names your ECU (FT450, FT550, FT600 or FT700) before ordering.
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FuelTech Dual Power Driver connector kit with DTP and DTM connectors
FuelTech

FuelTech Dual Power Driver Connector Kit

$69.00
5011100562
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
This kit makes a FuelTech Dual Power Driver (DPD) install cleaner and easier to service by putting unpluggable DTP and DTM connectors between the...
FuelTech DTP 4-way male heavy-duty sealed connector kit
FuelTech

FuelTech DTP 4-Way Connector Kit - Male

$18.00
5011100853
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The male half of a heavy-duty, environmentally sealed DTP 4-pin connection for high-current wiring. Use it for power distribution, fuel pumps, fans and other...
FuelTech DTP 4-way female heavy-duty sealed connector kit
FuelTech

FuelTech DTP 4-Way Connector Kit - Female

$18.00
5011100854
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
A heavy-duty, environmentally sealed DTP 4-pin connector, female side, for high-current wiring. Typical uses are power distribution, fuel pumps, fans and other high-load circuits....
FuelTech DTM 3-way male sealed connector kit
FuelTech

FuelTech DTM 3-Way Connector Kit - Male

$7.00
5011100867
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The male half of a sealed DTM 3-way connection, sized for motorsport and performance harnesses. It is built for heat, vibration and moisture and...
FuelTech FT600 2021-2024 Can-Am Maverick X3 plug and play adapter harness
FuelTech

FuelTech FT600 2021-2024 Can-Am Maverick X3 Adapter Harness PNP

$1,299.00
2002112361
FuelTech FuelTech Powersports Harnesses FuelTech Wiring Harnesses
This plug-and-play adapter harness connects a FuelTech FT600 ECU to the factory wiring on a 2021-2024 Can-Am Maverick X3. It sits between the FT600...
FuelTech FT600 2016-2020 Can-Am Maverick X3 plug and play adapter harness
FuelTech

FuelTech FT600 2016-2020 Can-Am Maverick X3 Adapter Harness PNP

$1,299.00
2002112360
FuelTech FuelTech Powersports Harnesses FuelTech Wiring Harnesses
This plug-and-play adapter harness lets a 2016-2020 Can-Am Maverick X3 run a FuelTech FT600 ECU without rewiring the vehicle. It plugs between the FT600...
FuelTech DTM 3-way female sealed connector kit
FuelTech

FuelTech DTM 3-Way Connector Kit - Female

$7.00
5011100870
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
A compact, sealed DTM 3-way connector, female side, for motorsport and performance wiring. It handles heat, vibration and moisture and fits well in tight...
FuelTech CDI Racing Ignition Coil plug kit connector and terminals
FuelTech

FuelTech CDI Racing Ignition Coil Plug Kit

$12.00
5005100161
FuelTech FuelTech Connectors & Plug Kits FuelTech Ignition Systems FuelTech Wiring Harnesses Ignition
This plug kit contains the connector and pin terminals needed to wire the FuelTech CDI Racing Ignition Coil. It gives the coil a secure...
FuelTech CAN B male connector kit for FT550 and FT600 ECUs
FuelTech

FuelTech CAN B Connector Kit - Male

$7.00
5011100450
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
This is the male half of the CAN B connection used on FuelTech FT550, FT550LITE and FT600 ECUs. Use it to add CAN devices,...
FuelTech CAN B female connector kit for FT550 and FT600 ECUs
FuelTech

FuelTech CAN B Connector Kit - Female

$7.00
5011100295
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The female CAN B connector kit is for building or repairing CAN network wiring on FuelTech FT550, FT550LITE and FT600 ECUs. It is the...
FuelTech CAN 2.0A male connector kit
FuelTech

FuelTech CAN A Connector Kit - Male

$5.00
5011100294
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
This male CAN A connector kit gives you the plug side of a CAN 2.0A network connection. Use it to repair, extend or add...
FuelTech CAN 2.0A female connector kit for FT450 ECU
FuelTech

FuelTech CAN A Connector Kit - Female

$5.00
5011100347
FuelTech FuelTech Connectors & Plug Kits FuelTech Wiring Harnesses
The female CAN A connector kit is used to build or repair a CAN 2.0A network connection on FuelTech's FT450 ECU. It suits harness...
FuelTech Bosch 4.9 wideband O2 sensor plug kit connector
FuelTech

FuelTech Bosch 4.9 WB-O2 Sensor Plug Kit

$13.00
5005100584
FuelTech FuelTech Connectors & Plug Kits FuelTech O2 & EGT Conditioners FuelTech Sensors & Valves FuelTech Wiring Harnesses
The Bosch 4.9 WB-O2 Sensor Plug Kit is the harness-side plug for a Bosch 4.9 wideband oxygen sensor. Use it to build or repair...
FuelTech Bosch 4.2 wideband O2 sensor male connector and pins
FuelTech

FuelTech Bosch 4.2 WB-O2 Sensor Connector Kit - Male

$13.00
5005100216
FuelTech FuelTech Connectors & Plug Kits FuelTech O2 & EGT Conditioners FuelTech Sensors & Valves FuelTech Wiring Harnesses
This is the male-side connector kit for a Bosch 4.2 wideband oxygen sensor. It lets you terminate your harness so the sensor plugs straight...
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