21284318 Compatible Water Pump Housing — Volvo

What does a water pump housing do?

The water pump housing serves as the critical structural casing for the coolant circulation pump within the engine cooling system. It is bolted directly to the engine block or timing cover, providing a secure mounting point for the pump shaft, impeller, and mechanical seals. This component is essential for maintaining stable coolant flow and preventing leaks under continuous operation.

Compatibility with Volvo VHD

This specific housing is designed for Volvo VHD trucks utilizing D13 engines. It is built to meet rigorous standards, ensuring dimensional accuracy and compatibility with the existing cooling circuit. For correct fitment, always verify against the engine type and original equipment specifications.

Maintenance and inspection

When performing maintenance, technicians should inspect the housing for signs of coolant weeping or surface cracks. It is recommended to inspect the housing during routine belt or timing belt service intervals to prevent unexpected thermal management failures in heavy commercial vehicles.

Troubleshooting guidance

If you observe unusual noise or visible leaks near the pump assembly, consult your authorized distributor to ensure a correct replacement.

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.