20744939 Volvo FM 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 flow, it prevents engine overheating and ensures stable thermal management during heavy-duty operation. This part is engineered using high-strength components to withstand the rigorous demands of commercial vehicle service.

Compatible Volvo FM models

This specific water pump is compatible with a wide range of Volvo FM and FM II series trucks, including models such as the FM 480, FM 440, FM 380, and the FM 500. It is also fitted to various configurations like the FM 420 LNG and FM 460 LNG, ensuring precise fitment for diverse fleet requirements across different engine variants.

Installation and maintenance

For optimal performance, technicians should inspect the pump alongside the timing belt or alternator belt during routine service. When replacing, it is vital to check the mechanical seal and gasket integrity to prevent leaks. Ensuring proper mounting and alignment during installation prevents premature bearing wear and maintains steady coolant flow.

Troubleshooting guidance

Regular monitoring for signs such as coolant leaks from the weep hole or unusual bearing noise can help prevent sudden engine overheating issues.

OE cross-reference

525.03.0006 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20744939.