21469157 Volvo FM and FMX Compatible 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 thermal management, it prevents engine overheating during heavy-duty operation in demanding environments.

Compatible Volvo models and engines

Designed specifically for Volvo FM models (including FM 300, 340, 360, 380, 390, 400, 430, 440, and 480) and Volvo FMX variants (400, 440, 480), this part is engineered to meet the rigorous requirements of heavy commercial vehicle engines. It provides a reliable replacement for original equipment components in truck and construction machinery fleets.

Installation and maintenance guidance

Technicians should inspect the pump housing and impeller during routine maintenance. To ensure proper fitment, verify the engine code and check for common failure indicators such as coolant leaks from the weep hole or unusual bearing noise. It is recommended to replace the pump alongside the drive belt during scheduled engine service intervals.

Troubleshooting and replacement

Consult your authorized distributor for further information regarding compatibility and installation.

OE cross-reference

525.03.0020 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21469157.