21284318 Compatible Water Pump Housing — Volvo

What does a water pump housing do?

This water pump housing serves as the structural foundation for the coolant circulation assembly in heavy commercial vehicle engines. It is bolted directly to the engine block to support the pump shaft, impeller, and seal assembly, ensuring the engine maintains optimal operating temperatures during long service hours.

Vehicle and engine compatibility

This specific component is designed for Volvo FH12 vehicles equipped with D12D engines. It is engineered to meet strict OE tolerances to ensure seamless integration within the engine cooling system, providing reliable performance under high thermal loads.

Installation and maintenance

When inspecting the cooling system, technicians should check for signs of coolant leakage or structural integrity issues around the housing mounting points. For optimal service life, it is recommended to inspect the housing during routine coolant and belt replacement intervals to prevent unexpected engine overheating.

Troubleshooting guidance

Consult your authorized distributor for compatibility verification regarding your specific engine configuration.

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.