21648716 Volvo FMX III Cooling System Water Pump

What does a water pump do?

This water pump plays a vital role in the engine cooling system by circulating coolant between the engine and the radiator. It ensures that thermal loads are managed effectively, preventing overheating in demanding heavy commercial vehicle environments. Built with high-strength components, it provides reliable service for long-term engine health.

Vehicle compatibility and engine fitment

This component is specifically designed for Volvo trucks, including models such as the FMX III (330, 370, 380, 410, 430, 450, 460), FMX II (330, 370, 410, 450), and the FM series (330, 370, 410, 450). It is also compatible with various other Volvo truck configurations to ensure precise fitment across different engine specifications.

Installation and maintenance guidance

For workshop technicians performing engine maintenance, it is recommended to inspect the pump for signs of coolant leakage or bearing play. When performing belt services, it is best practice to check the condition of the water pump to prevent unplanned downtime. Consult your authorized distributor.

Troubleshooting and service tips

Maintaining a stable cooling temperature is essential for preventing engine wear and ensuring optimal fuel efficiency in heavy commercial vehicles.

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 21648716.