20921947 Volvo FMX D13K 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 and the radiator. By maintaining constant fluid movement, it prevents overheating and ensures stable operating temperatures for high-performance heavy-duty engines.

Compatible vehicles and engines

This part is specifically compatible with Volvo FMX trucks equipped with D13K engines, including models such as the FMX 370, 410, 450, 330, and 430. It is also suitable for various Volvo FM series applications like the FM 330, 450, 410, and 370.

Maintenance and inspection

During routine maintenance or when servicing the timing belt or alternator belt, it is recommended to inspect this pump for signs of wear. Common indicators of replacement need include coolant leaks from the weep hole or unusual bearing noise. Ensuring a secure fitment and proper belt tension is vital for long-term reliability.

Troubleshooting guidance

Consult your authorized distributor to ensure correct fitment for your specific engine configuration.

OE cross-reference

525.03.0009 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20921947.