GP1800 2018-2020 harness and accessories

This sub-harness plugs into the oil pressure sensor connector in the main harness and allows monitoring of oil pressure in applications that use a sensor with a Metri-Pak style connector. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness Note: Oil temperature cannot be monitored with this adapter harness.

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Correct replacement 20A micro relay for our main harnesses. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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This harness allows logging and monitoring of tunnel pressure when using our Yamaha WaveRunner harness. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness Please refer to the main harness documentation for proper ECU pin settings and calibration.

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This kit contains a popular MAC 3-port solenoid with an aluminum mounting bracket and stainless steel hardware. It features a connector that fits our harnesses for a clean installation.

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Correct replacement 35A relay for our main harnesses. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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This harness allows connecting to a Bosch-style two-wire knock sensor when using our Yamaha WaveRunner harness. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness Please refer to the main harness documentation for proper ECU pin settings and calibration.

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Camshaft position Sensor connector kit for Yamaha Waverunners with the 1.8L HO and SVHO engines. This is the connector on the engine harness side. A complete kit contains: 1 connector G4 3 red seals A34 3 female contacts B15

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Yamaha Waverunner 1.8L crankshaft position sensor connector kit. This is the harness-side connector. This kit is the engine harness side of the crank position sensor connector assembly. A complete kit contains: 1 connector G1 2 red seals A34 2 female contacts B16

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This adapter connector allows turning on the ignition system on our Yamaha harnesses when performing firmware upgrades, datalogging or any operation that requires the system to be powered without the engine turning. Also allows connecting to the ECU via Wi-Fi during tuning sessions without the need for a USB cable. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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Connects to our main harness on the Yamaha GP1800 and FX series and enables the use of a nitrous solenoid and also provides a connection for a nitrous pressure sensor to the ECU.  

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This connector fits the older style Yamaha Waverunners Ride motor on the engine harness side.  A complete kit contains 1 connector N13 16 seals A50 16 contacts + 1 extra B35 12 cavity plugs A52

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Yamaha 1.8L waverunner reverse position sensor connector kit. Fits all Yamaha waverunner newer models with Ride reverse. A complete kit contains 1 Connector K11 6 seals A53 7 contacts B15

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This connector is intended to keep the harness waterproof in applications that use the OEM Yamaha CAN bus based dash for display. Since the OEM dash connects directly to the buzzer, the connector on the harness needs a sealing plug to remain waterproof.  See main harness instructions for how to use this connector. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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This connector is intended to keep the harness waterproof in applications that do not have a flex fuel sensor installed Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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This connector is intended to keep the harness waterproof in applications that do not have a Haltech dash installed Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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This connector is intended to keep the harness waterproof in applications that do not have a knock sensor installed Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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This connector seals the main harness in applications that do not use nitrous. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness

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This connector is intended to keep the harness waterproof in applications that do not have an oil pressure sensor installed Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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Ensures the harness stays waterproof when not using a rotary trim pot. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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Ensures the harness stays waterproof when not using a secondary fuel pump. Fits: Yamaha GP1800 series main harness Yamaha FX series main harness Yamaha FZR series main harness

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Keeps the main harness waterproof for applications that do not use a spare switch Fits: Yamaha GP1800 series main harness Yamaha FX series main harness

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