21221878 Volvo FM 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 fluid motion, it prevents overheating and ensures the engine operates within its ideal temperature range, which is vital for preventing serious engine damage during long-haul operations.

Compatible vehicles and engines

This component is specifically designed for Volvo FM trucks, including models such as the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430. It is also compatible with Volvo FM13 engines featuring the D13A engine designation.

Installation and maintenance

To ensure proper fitment and prevent leaks, technicians should inspect the mounting surfaces and check for any signs of bearing play or impeller wear during installation. It is recommended to renew the water pump alongside any timing belt or alternator belt service to maintain system integrity.

Selection guidance

Consult your authorized distributor to verify specific compatibility for your vehicle's engine configuration.

OE cross-reference

525.03.0006 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21221878.