20431151 Volvo FM12 Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, ensuring the continuous circulation of coolant between the engine block and the radiator. By maintaining consistent fluid flow, it prevents overheating and protects vital engine components under heavy-duty operating conditions.

Compatible Volvo FM12 models

This component is specifically designed for Volvo FM12 series trucks, including various configurations such as the FM 12/460, FM 12/380, FM 12/340, and FM 12/420. It is also compatible with FM 12H variants like the 420, 380, and 340 models to ensure precise fitment across the fleet.

Installation and maintenance

For professional workshop technicians and fleet managers, it is recommended to inspect the pump housing and impeller during routine cooling system maintenance. When replacing this unit, it is best practice to check all associated belts and gaskets to ensure long-term reliability and prevent coolant leaks from the weep hole or bearing housing.

Troubleshooting and selection

Maintaining a stable thermal environment is essential for engine longevity in heavy commercial vehicles. Consult your authorized distributor to confirm exact specifications for your specific engine configuration.

OE cross-reference

525.03.0003 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20431151.