21974078 Volvo FMX D13C Engine Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, facilitating the continuous circulation of coolant between the engine block and the radiator. By maintaining consistent fluid flow, it prevents overheating and ensures the thermal stability of the engine during intensive operations. Built with high-strength components, it is engineered to withstand the rigorous demands of heavy commercial vehicle service.

Vehicle and engine compatibility

This specific unit is designed for Volvo FMX engines, particularly the D13C series. It is also compatible with various Volvo FM models including the FM 330, FM 450, FM 410, and FM 370 variants. This ensures reliable performance across diverse fleet requirements and construction machinery applications.

Maintenance and inspection guidance

For optimal engine longevity, technicians should inspect the pump during routine belt or timing belt service intervals. It is recommended to check for signs of wear such as coolant leakage from the weep hole or unusual bearing noise. Replacing the pump alongside related cooling system components can prevent unexpected downtime in heavy-duty engines.

Troubleshooting and selection

Consult your authorized distributor to ensure correct fitment for your specific engine configuration.

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 21974078.