21284318 Volvo FH II Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, facilitating the continuous circulation of coolant between the engine block, cylinder head, and radiator. By maintaining steady thermal management, it prevents engine overheating during heavy-duty operation in commercial vehicles.

Compatible Volvo FH series models

This specific unit is designed for Volvo FH and FH II models, including variants such as 380, 420, 460, 500, and 540. It is engineered to meet the rigorous demands of heavy commercial vehicle engines, ensuring reliable performance across various operating conditions.

Installation and maintenance guidance

For optimal engine health, technicians should inspect the water pump during scheduled timing belt or alternator belt services. Common signs of wear include coolant leakage from the weep hole or unusual mechanical noise during engine operation.

Troubleshooting cooling issues

Maintaining a consistent cooling flow is vital for preventing catastrophic engine failure in tractor units and heavy trucks.

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 21284318.