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Heater Hose Bypass Kit for Nissan RB Engines

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Heater hose bypass kit for Nissan RB Engines, to keep water flow from the rear of the engine once the heater system has been removed

The kit consists of 10AN hose & fittings, with our custom machined adaptor for the rear of the thermostat housing.

The thermostat housing fitting is available with and without a 1/4”NPT side port. Commonly used as a water return from turbo, throttle body, etc.


  • Nissan RB20DE, RB20DET
  • Nissan RB25DE, RB25DET (Including Neo)
  • Nissan RB26DETT
  • Nissan RB30ET, RB30DET

Please note - the kit is not compatible with factory Holden RB30 engine mounts due to clearance issues.

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