23959585 Volvo FMX II Engine Coolant Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, ensuring the continuous circulation of coolant between the engine and the radiator. By maintaining consistent thermal regulation, it prevents engine overheating during intensive operation in heavy commercial vehicle applications.

Vehicle compatibility and engines

This component is specifically designed for Volvo FMX II and FM series trucks, including various configurations such as the 380, 420, 460, 500, and 540 models. It is engineered to meet the rigorous demands of these heavy-duty engines, ensuring reliable performance across diverse fleet operations.

Maintenance and inspection

When performing engine maintenance, it is recommended to inspect the pump alongside the timing belt or alternator belt. Technicians should check for signs of coolant leakage from the weep hole or unusual bearing noise to ensure the cooling system remains efficient and prevents unexpected downtime.

Troubleshooting guidance

Check the compatibility list.

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 23959585.