21960481 Volvo FMX III Water Pump

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 fluid flow, it prevents engine overheating and ensures stable operating temperatures even under high thermal loads in demanding environments.

Vehicle and engine compatibility

This component is designed for Volvo FMX III, FMX II, and FM series trucks. Specifically, it provides reliable service for Volvo FM models including the FM 380, FM 420, FM 460, and FM 500, as well as various FMX configurations like the 380, 420, 460, and 540 models. It is an essential replacement part for fleet managers and workshop technicians maintaining these heavy commercial vehicles.

Installation and maintenance guidance

When performing engine maintenance, it is recommended to inspect the pump housing and impeller for signs of erosion or leakage. For optimal performance, technicians should check the mechanical seals and gaskets during routine service intervals to prevent coolant loss. Ensuring the drive belt tension is correct will help maintain the longevity of the internal bearing assembly.

System reliability

Maintaining a robust cooling system is vital for preventing engine failure in construction machinery and tractor units. Always verify fitment with the specific engine model to ensure proper flow rates and mounting alignment.

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 21960481.