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.
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.
A Type K miniature thermocouple connector in the 2-pin flat mini format. It connects thermocouple temperature probes to a FuelTech EGT-8 CAN or EGT-4...
The unterminated main harness for FuelTech's FT200, FT250, FT300, FT350 and FT400 ECUs. The ECU plug comes installed and the remaining wires are left...
The 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 connector kit for FuelTech travel sensor wiring, used when building or repairing chassis sensor harnesses. Connector color can vary depending on stock. Connector...
The FT700 Multimedia Connector Kit is the mating hardware for the FT700's M (multimedia) connector. It provides the connector, terminals and RCA connectors to...
This plug-and-play adapter harness connects a FuelTech FT600 ECU to the factory wiring of 2022-and-newer Polaris RZR Pro R side-by-sides. It plugs between the...
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