21284318 Compatible Water Pump Housing — Volvo

What does a water pump housing do?

This water pump housing is a critical component within the engine cooling system, designed to contain the pump assembly and facilitate the stable flow of coolant. Built with high-strength components, it ensures structural integrity under constant thermal cycling and pressure changes within the engine block.

Compatible vehicles and engines

Specifically designed for Volvo FM11 trucks equipped with D11B engines, this housing provides a precise fit for the cooling circuit. It is an essential part for maintaining the thermal management of heavy commercial vehicle engines during intensive service cycles.

Installation and maintenance

When performing cooling system maintenance, technicians should inspect the housing for signs of coolant leakage or surface erosion. It is recommended to check all mounting surfaces and seals during replacement to ensure a leak-free connection to the engine block and radiator hoses.

Troubleshooting and selection

For correct fitment, always verify the engine code and existing part specifications before installation to prevent flange or diameter mismatches. Consult your authorized distributor.

OE cross-reference

525.03.0001 (Water Pump Housing Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21284318.