85003708 Volvo FMX D11B Engine Water Pump

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine and the radiator. By maintaining consistent fluid flow, it prevents engine overheating and ensures stable operating temperatures during heavy-duty operation. This component is manufactured using high-strength components to withstand the demanding thermal and mechanical stresses found in construction machinery and heavy trucks.

Compatible vehicles and engines

This specific part is designed for Volvo FMX models equipped with D11B engines, including variants such as the 480, 440, and 400. It is also compatible with several Volvo FM series models, including the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430. Using an OE-compatible part ensures proper fitment within the cooling circuit.

Installation and maintenance

For optimal performance, technicians should inspect the pump during routine belt service. When replacing this unit, it is recommended to check the condition of the drive belts and the radiator hoses. Regular inspection helps prevent common failure indicators such as coolant leaks from the weep hole or unusual bearing noise.

Troubleshooting guidance

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

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 85003708.