21284318 Compatible Water Pump Housing — Volvo

What does a water pump housing do?

This water pump housing serves as a critical component within the engine cooling system, providing the structural foundation for the pump assembly. It is engineered to withstand the continuous high-load operating conditions typical of heavy commercial vehicle engines, ensuring reliable coolant flow and temperature regulation.

Compatible vehicles and engines

This specific part is compatible with Volvo B11R vehicles featuring D11A engines. It is designed to meet strict dimensional accuracy and OE tolerances to ensure seamless integration into the existing cooling circuit of the engine.

Installation and maintenance

During maintenance or when replacing the pump assembly, technicians should inspect the housing for any signs of coolant leakage or structural wear. When renewing the housing, it is recommended to check all connected hoses and seals to maintain optimal system pressure.

Troubleshooting and selection

Proper selection ensures that the mechanical seal and impeller remain correctly aligned under thermal stress. For accurate fitment, always verify compatibility with your specific engine type.

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.