21284318 Compatible Volvo FH III Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, responsible for circulating coolant between the engine and the radiator. By ensuring a constant flow of liquid through the cooling jacket, it prevents overheating and maintains stable operating temperatures under heavy-duty workloads.

Vehicle compatibility and fitment

This part is specifically designed for Volvo FH III, FH II, and FH series trucks. It is compatible with a wide range of configurations including the 420, 460, 500, and 540 variants, as well as specific AERO and LNG models. This ensures precise fitment for diverse fleet requirements.

Maintenance and inspection guidance

For professional workshop technicians and fleet managers, we recommend inspecting the pump during routine timing belt or alternator belt service. Monitoring for signs such as coolant leakage from the weep hole or unusual bearing noise can help prevent unexpected downtime in heavy commercial vehicles.

Preventative maintenance

Maintaining a robust cooling cycle is essential for engine longevity in heavy-duty applications. Consult your authorized distributor to ensure exact compatibility with your specific engine code.

OE cross-reference

525.03.0005 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21284318.