21648708 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 maintaining steady flow, it prevents overheating and ensures the engine operates within its thermal design limits during heavy-duty service.

Compatible Volvo FH models

This part is specifically engineered for Volvo FH series trucks, including FH III models such as the 460 AERO, 540 AERO, and 500 AERO, as well as various LNG configurations. It is also compatible with several Volvo FH II variants to ensure wide-ranging fleet support.

Maintenance and installation

For optimal performance, technicians should inspect the pump during routine belt service. When replacing this component, it is recommended to check the integrity of the impeller and shaft to ensure long-term reliability under high-load conditions. Consult your authorized distributor for more information.

Troubleshooting guidance

Regular monitoring of coolant levels and checking for signs of leakage near the housing can help prevent unexpected downtime in heavy commercial vehicles.

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 21648708.