21814036 Volvo FH FH II FH III Water 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 block and the radiator. By maintaining optimal thermal regulation, it prevents engine overheating during heavy-duty operations in commercial transport environments.

Compatible Volvo truck models

This component is engineered to fit a wide range of Volvo trucks, specifically the FH II and FH III series, including models such as the 460, 500, 540, and 420 variants. It is also compatible with various engine configurations like the AERO and LNG series to ensure precise fitment across the FH lineup.

Installation and maintenance guidance

For optimal performance, technicians should inspect the pump during routine belt service. When replacing this part, it is recommended to check the mechanical seal and impeller integrity. Maintaining proper coolant levels and monitoring for leaks from the weep hole can prevent premature failure of the cooling system.

Troubleshooting cooling issues

Consult your authorized distributor to confirm exact compatibility with your specific engine code.

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 21814036.