20431135 Water Pump for Volvo FH12

What does a water pump do?

This water pump plays a critical role in the engine cooling system by continuously circulating coolant between the engine block, cylinder head, and radiator. For heavy commercial vehicle engines, maintaining steady coolant flow is essential to prevent overheating and ensure optimal thermal management during long service hours.

Compatible Volvo FH12 models

This specific unit is designed to fit 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 serves as a reliable replacement for original equipment components in these heavy-duty truck engines.

Installation and maintenance

To ensure proper operation, technicians should inspect the pump during routine belt services. Common indicators for replacement include coolant leaks from the weep hole or unusual noise from the bearing assembly. When installing, it is recommended to check the condition of the drive belts and gaskets to maintain system integrity.

Troubleshooting and replacement

Maintaining a consistent cooling cycle is vital for preventing engine wear. For accurate fitment, always consult your authorized distributor to confirm compatibility with 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 20431135.