ISR Performance OE Replacement Water Pump - Nissan RB20DET

This ISR Performance OE replacement water pump for the Nissan RB20DET is the straightforward fix for a weeping, noisy or seized pump on a rear-wheel-drive RB20 swap. It is the same style of part you would pick up at a local parts counter for a domestic car: not a genuine Nissan unit, but a direct-fit replacement that comes with the gasket and pulley studs you need to finish the job in one go.

What you get

A failing water pump on an RB20DET usually shows up as coolant seeping from the weep hole, a rumbling bearing or a temperature gauge that climbs under load. Because these engines are almost always imported used, the pump is often original and well past its service life.

• New OE replacement water pump for the RB20DET
• New pump gasket so you are not reusing a crushed one
• Four pulley studs included
• Not OEM Nissan, an aftermarket OE replacement part

Fitment

Fits the RB20DET in rear-wheel-drive form only. All-wheel-drive RB20 variants use a different pump and are not covered.

Included

• 1x OE replacement water pump, Nissan RB20DET
• 1x water pump gasket
• 4x pulley studs

Service notes

Replacing the pump is a good time to inspect the timing belt, tensioner and thermostat, since the front of the engine is already apart. Clean the block mating surface completely before fitting the new gasket.

All ISR Performance products are designed for off-road use only.