21941086 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 flow, it prevents engine overheating and ensures stable thermal management during heavy-duty operation. Built with high-strength components, it is designed to withstand the rigorous demands of commercial vehicle service.

Compatible Volvo models and engines

This unit is specifically engineered for compatibility with several Volvo models, including the FMX III series (380, 420, 460, 500, 540), the FMX II series (380, 420, 460, 500, 540), and various FM series configurations. It is also suitable for other Volvo heavy commercial vehicle applications. Check the compatibility list.

Maintenance and installation guidance

For optimal performance, technicians should inspect the pump during routine belt services. Key maintenance indicators include signs of coolant leakage or unusual bearing noise. When replacing this component, it is recommended to check the condition of related cooling system parts such as hoses and thermostats to ensure system integrity.

System reliability for heavy-duty use

Maintaining a stable cooling cycle is essential for preventing engine wear in construction machinery and tractor units. This replacement part offers a reliable solution for fleet managers and workshop technicians looking to maintain engine longevity in heavy commercial vehicles.

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 21941086.