21221878 Volvo FH 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 maintaining consistent thermal management, it prevents overheating during high-load operations common in heavy commercial vehicle service.

Vehicle and engine compatibility

This component is specifically engineered for Volvo FH series trucks, including models such as the 400, 440, 480, 500, and 520. It is compatible with Volvo FH13 engines featuring the D13C designation. For precise fitment, verifying the engine code is recommended.

Installation and maintenance

To ensure reliable performance, technicians should inspect the pump during routine belt services. Common signs of wear include coolant leakage from the weep hole or unusual bearing noise. Replacing this unit alongside the timing or alternator belt helps prevent sudden engine overheating.

Troubleshooting and selection

Vaden Original provides high-strength components built to withstand the rigorous demands of long-haul transport and construction machinery environments.

OE cross-reference

525.03.0006 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21221878.