Isuzu 8970436930 Water Pump Assembly

This water pump assembly is engineered for Isuzu 4BD1 and 4BD2 3.9L diesel engines. The unit features a cast iron housing for structural rigidity and corrosion resistance in heavy-duty coolant circuits. It utilizes a paper gasket sealing interface and includes the necessary gasket and seal for installation. The impeller and bearing assembly are designed to maintain coolant flow rates matching OEM thermal management requirements. The component references Isuzu OE part numbers 8970436930, 8971314590, 8-97043-693-0, 8-97131-459-0, and 2-90146-326-1. It serves as a direct replacement for medium-duty truck applications including Isuzu NPR and NQR series, as well as GMC W3500 W4500 and Chevrolet W3500 W4500 Tiltmaster models manufactured between 1992 and 1998. Unit weight is 6.37 kg.