21974080 Volvo FMX D11B Water Pump

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine and the radiator. It is constructed from heavy-duty grade materials to withstand the high-pressure and thermal stresses typical of heavy commercial vehicle operations.

Compatible vehicles and engines

This component is specifically designed for Volvo FMX models, including variants such as the 330, 370, 410, 430, and 450, particularly those powered by D11B engines. It also provides compatibility for several Volvo FM series models including the FM 330, FM 370, FM 410, and FM 450.

Installation and maintenance

For optimal performance, technicians should inspect the pump during routine belt service intervals. It is recommended to check for signs of coolant leakage from the weep hole or unusual bearing noise. When replacing this component, ensuring proper alignment with the drive belt is essential for long-term reliability.

Troubleshooting and selection

Maintaining a healthy cooling system prevents engine overheating and extends the service life of other critical components. Consult your authorized distributor for further information.

OE cross-reference

525.03.0009 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21974080.