21648711 Compatible Water Pump — Volvo FMX II

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, responsible for circulating coolant between the engine and the radiator. By maintaining consistent flow, it prevents engine overheating and ensures stable operating temperatures for heavy-duty engines in demanding environments.

Vehicle compatibility and engine fitment

This component is specifically engineered for Volvo FM and FMX series trucks, including various models such as the FM 460, FM 380, FM 420, FM 500, FM 400, FM 440, FM 360, FM 480, and FMX variants like the 380, 420, 500, and 460. It is also compatible with FMX II models such as the 540, 420, 500, 460, and 380. The part is designed to meet the rigorous demands of heavy commercial vehicle engines.

Installation and maintenance guidance

For professional maintenance, it is recommended to inspect the pump during routine cooling system service. Technicians should check for signs of coolant leakage from the weep hole or unusual bearing noise. When replacing this unit, ensure that all gaskets are correctly seated and check the condition of related belts to prevent premature wear of the new assembly.

Troubleshooting and maintenance

Regular inspection of the cooling system components helps prevent unexpected downtime in fleet operations. This part provides a reliable solution for maintaining thermal stability in Volvo heavy-duty engines. Check the compatibility list.

OE cross-reference

525.03.0008 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21648711.