This water pump circulates coolant through the engine block and radiator to maintain operating temperature. It is driven by the engine's accessory belt and mounts directly to the timing cover or block face. The pump's impeller moves coolant from the lower radiator hose into the water jacket, then out through the thermostat housing. A failing pump typically produces a coolant leak from the weep hole or a growling noise from the bearing assembly. As an original-manufacturer component, the housing casting matches the gasket surface and bolt pattern of the original assembly, which eliminates the need for shimming or adapter plates during installation. Replace the gasket and apply thread-locking compound to the mounting bolts on reinstall.