20744939 Volvo FMX FMX 480 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 and the radiator. By maintaining proper thermal management, it prevents engine overheating and ensures stable operating temperatures during heavy-duty cycles.

Vehicle and engine compatibility

This specific unit is engineered for compatibility with Volvo FM models, including the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430. It is also fitted to Volvo FMX trucks such as the FMX 480, FMX 440, and FMX 400 equipped with D11K engines. This ensures reliable performance across various heavy commercial vehicle applications.

Maintenance and replacement guidance

For optimal performance, technicians should inspect the pump during routine belt service. Common indicators for replacement include coolant leakage from the weep hole or unusual bearing noise. Ensuring correct fitment is vital for maintaining the integrity of the engine's thermal management system.

Troubleshooting and selection

When selecting a replacement, verifying the engine code and checking against existing OE references ensures perfect integration with the vehicle's cooling circuit.

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.