21648711 Volvo FMX D11K Water Pump

What does a water pump do?

This water pump plays a vital role in the engine cooling system by circulating coolant between the engine and the radiator. It is engineered to withstand high-duty cycles, ensuring consistent temperature regulation for heavy commercial vehicle engines. By maintaining proper flow, this component helps prevent overheating and protects critical engine parts.

Compatible vehicles and engines

The unit is specifically designed for Volvo FMX models with D11K engines, including various configurations such as the 380, 420, 460, and 500 series. It is also compatible with several Volvo FM models including the FM 360, FM 380, FM 400, FM 420, FM 440, FM 460, FM 480, and FM 500. This ensures wide-ranging fitment across diverse heavy-duty truck fleets.

Installation and maintenance

For workshop technicians and fleet managers, it is recommended to inspect the pump during routine belt service. When replacing this component, it is best practice to check the condition of the impeller and mechanical seals. Maintaining a clean cooling circuit helps extend the service life of this high-strength component.

Troubleshooting guidance

Regular monitoring for signs such as coolant leaks or unusual bearing noise can prevent unexpected downtime. Consult your authorized distributor for further information.

OE cross-reference

525.03.0008 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21648711.