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 to maintain optimal operating temperatures. By ensuring steady flow, it prevents engine overheating and protects vital internal components during heavy-duty service.

Vehicle compatibility and fitment

This part is specifically compatible with various Volvo FM models, including the FM II, FM III, and FM series variants such as the FM 300, FM 340, FM 360, FM 370, FM 380, FM 390, FM 400, FM 420, FM 430, FM 440, FM 460, and FM 480. It also fits specific LNG configurations like the FM 420 LNG, 460 LNG, and 500 LNG.

Installation and maintenance guidance

For professional technicians, it is recommended to inspect the pump during regular belt service intervals. When replacing this component, ensure that all mounting surfaces are clean and that the drive belt is properly tensioned to avoid premature wear or bearing play.

Troubleshooting indicators

Monitoring for signs such as coolant leaks from the weep hole or unusual mechanical noise can help prevent unexpected downtime in fleet operations.

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.