20431137 Volvo FH12 Compatible 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 block, cylinder head, and radiator. By maintaining steady flow, it prevents overheating during heavy-duty operation in commercial vehicle engines.

Compatible Volvo FH12 models

This specific component is designed for compatibility with Volvo FH12 models, including the FH 12/340, FH 12/380, FH 12/420, FH 12/500, FH 12/460, FH 12/390, and FH 12/430 variants. It is built to meet the rigorous demands of tractor units and heavy trucks operating in demanding environments.

Installation and maintenance

For optimal performance, technicians should inspect the pump during routine belt service. It is recommended to check for signs of coolant leakage from the weep hole or unusual bearing noise. Replacing the unit during timing belt or alternator belt maintenance can prevent unexpected engine overheating.

Troubleshooting guidance

Proper selection ensures the component integrates seamlessly with the existing cooling architecture of the vehicle's engine.

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 20431137.