20538845 Volvo FM11 D11B Water Pump

What does a water pump do?

This water pump is a vital component of the engine cooling system, responsible for circulating coolant between the engine and the radiator. By ensuring a continuous flow of coolant, it prevents engine overheating and maintains stable operating temperatures under heavy-duty working conditions.

Vehicle and engine compatibility

This specific unit is compatible with Volvo FM trucks, including various models such as the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430. It is also suitable for Volvo FM11 vehicles equipped with D11B engines. Consult your authorized distributor to ensure exact fitment.

Installation and maintenance

During installation, technicians should inspect the belt tension and the condition of the water pump housing. It is recommended to check for any signs of coolant leakage from the weep hole or unusual bearing noise during routine maintenance intervals to prevent sudden system failure.

System reliability

Maintaining a functional cooling system is essential for preventing engine thermal stress and ensuring long-term reliability in heavy commercial vehicle applications.

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 20538845.