21969183 Volvo FMX II Cooling System 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 ensuring consistent flow, it helps maintain the thermal stability required for heavy-duty engine operation under demanding conditions.

Vehicle and engine compatibility

This part is specifically designed for Volvo FMX II models, including variants such as 380, 420, 460, 500, and 540. It is also compatible with Volvo FM series engines including the FM 380, FM 420, FM 460, and FM 500. These components are engineered to withstand the high-stress environments typical of heavy commercial vehicle engines.

Maintenance and installation guidance

When performing engine maintenance, it is recommended to inspect the pump alongside the timing belt or alternator belt. Technicians should look for signs of wear such as coolant leakage from the weep hole or unusual bearing noise to prevent overheating issues.

Reliability and troubleshooting

Maintaining a healthy cooling system is essential for preventing engine overheating and ensuring long-term reliability in construction machinery and tractor units.

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 21969183.