20451516 Volvo FH 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 ensuring steady flow, it prevents engine overheating and maintains stable thermal conditions during heavy-duty operations.

Vehicle and engine compatibility

This specific unit is compatible with Volvo FH III models including 480 AERO, 500 AERO LNG, and 420 LNG, as well as Volvo FH and FH II series such as 540, 460, and 420 variants. It is engineered to meet the rigorous demands of heavy commercial vehicle engines.

Installation and maintenance guidance

For optimal performance, technicians should inspect the pump during regular belt service intervals. It is recommended to check for signs of coolant leakage from the weep hole or unusual bearing noise to prevent sudden system failure. Always ensure proper alignment during installation to protect the mechanical seal.

Troubleshooting and inspection

Consult your authorized distributor.

OE cross-reference

525.03.0006 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20451516.