21781059 Volvo FM II 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. Built with high-strength components, it is engineered to withstand the rigorous thermal and mechanical stresses found in heavy commercial vehicle engines.

Compatible Volvo FM series models

This component is specifically designed for Volvo FM II trucks, including the FM 330, FM 450, FM 410, and FM 370 variants. It is also compatible with Volvo FM series engines to ensure consistent cooling performance during heavy-duty operations.

Installation and maintenance guidance

For optimal engine health, technicians should inspect the pump during routine belt service. Signs that a replacement may be necessary include coolant leakage from the weep hole or unusual noise from the bearing assembly. Always check the mounting alignment and gasket integrity during installation.

Troubleshooting and replacement

Consult your authorized distributor to ensure perfect 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 21781059.