21648708 Volvo FMX Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, facilitating the continuous circulation of coolant between the engine block and the radiator. By maintaining steady flow, it prevents overheating and ensures stable operating temperatures for heavy commercial vehicle engines under demanding conditions.

Vehicle compatibility and fitment

This specific unit is engineered for Volvo FMX models, including variants such as 380, 420, 460, and 500, as well as Volvo FM series trucks like the FM 500, FM 380, FM 420, and FM 460. It provides a reliable alternative for fleet managers and workshop technicians looking to maintain engine integrity in these heavy-duty vehicles.

Maintenance and installation guidance

When performing cooling system maintenance, it is recommended to inspect the pump housing and impeller for any signs of wear or leakage. For optimal performance and to prevent unplanned downtime, technicians should check the pump alongside the timing belt or alternator belt during scheduled service intervals.

Troubleshooting and service tips

Proper installation is vital to ensure the mechanical seal and gaskets function correctly within the cooling circuit. Consult your authorized distributor for more information.

OE cross-reference

525.03.0005 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21648708.