21969187 Volvo FMX Compatible 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 fluid flow, it prevents engine overheating and ensures stable thermal management during heavy-duty operation.

Compatible Volvo models and engines

This component is specifically fitted to Volvo FMX trucks, including variants such as the 370, 410, 450, 330, and 430. It is also compatible with several Volvo FM models like the FM 330, FM 450, FM 410, and FM 370 series.

Maintenance and installation guidance

For optimal performance, technicians should inspect the pump during routine belt services. Signs of failure often include coolant leakage from the weep hole or unusual mechanical noise. When replacing this unit, it is recommended to check the condition of all connected hoses and belts to ensure long-term system integrity.

Troubleshooting and selection

Maintaining a high-quality cooling component is essential for preventing engine fatigue in construction machinery and heavy trucks. Consult your authorized distributor for fitment verification.

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 21969187.