FuelTech FT550 Sea-Doo 300 Plug-and-Play Harness 2010-2023 2002100542

The FuelTech FT550 Sea-Doo 300 Plug-and-Play Harness (2002100542 / 2002100543) is the adapter harness for installing a FuelTech FT550 ECU in a 2010–2023 Sea-Doo 300 using the PWC's OEM harness — it plugs directly into the factory harness with every connection needed for a fast, clean ECU install. Choose the 4 ft version for shorter ECU routing (typically RXP hulls) or the 8 ft version for longer routing (typically RXT, GTX and similar hulls).

Key Features

• True plug-and-play: connects the FT550 ECU to the OEM Sea-Doo harness
• Two spare connectors for extra FT550 inputs and outputs — add sensors and actuators later
• Update the FT550 with FTManager 5.0 or newer for the PWC control features and base start maps for each model

What's Included

• 1 × FuelTech FT550 Sea-Doo 300 Plug-and-Play Harness (length selected above)
• Or configure the complete package: add the FT550 ECU and an ignition module with the options above

Fitment

• Sea-Doo 300 models, 2010–2023 (RXP-X 300, RXT-X 300, GTX 300 and GTX Limited 300)
• Works with the FuelTech FT550 ECU

Important note from FuelTech: OEM Sea-Doo iBR (reverse bucket control) and OEM dashboard integration by CAN bus is partially implemented and is not compatible with all years and models — currently only the 2022 Sea-Doo RXP-X 300 is confirmed functional. Consult FuelTech tech support for updates. Ignition module options (SparkPRO-3 or OEM 3-channel igniter) are selectable above.