20921947 Volvo FM D13K Water Pump

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine and the radiator. By maintaining constant flow, it prevents overheating and ensures the thermal stability of high-performance heavy-duty engines.

Vehicle and engine compatibility

Designed specifically for Volvo FM models, including the FM 330, FM 450, FM 410, and FM 370 equipped with D13K engines, this component meets strict industrial requirements. It is also fitted to other heavy commercial vehicle engines that require precise coolant management.

Maintenance and installation

To ensure optimal performance, technicians should inspect the pump during scheduled belt services. Monitoring for signs such as coolant leaks from the weep hole or unusual bearing noise can help prevent engine overheating. Always verify compatibility with the specific engine code before installation.

Troubleshooting guidance

This component is engineered to withstand the demanding thermal and mechanical stresses found in heavy commercial vehicle environments.

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.