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The ISR Performance OE replacement water pump is a direct-fit pump for Nissan RB25 and RB26 engines, serving as a factory-style replacement to restore coolant circulation. Built to OE dimensions, the pump replaces worn or leaking units during engine service or rebuilds and helps maintain proper engine cooling. Choose this pump when OEM interchange or like-for-like replacement is required for RB25/26 applications.
ISR Performance OE Replacement Water Pump - Nissan RB25/26
