21814036 Volvo FH16 D16K 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 and the radiator. By maintaining stable thermal management, it prevents overheating and protects engine integrity during high-load operations.

Vehicle compatibility and engine fitment

Specifically designed for Volvo FH models (including 420, 460, 500, and 540 variants) and Volvo FH16 engines with the D16K engine code, this part is engineered to meet the rigorous demands of heavy commercial vehicle service. It is compatible with Volvo OEM specifications to ensure precise fitment and performance.

Installation and maintenance guidance

For optimal engine longevity, workshop technicians should inspect the pump for signs of coolant leakage from the weep hole or unusual bearing noise during routine maintenance. It is often recommended to replace this component alongside timing belt or alternator belt services to prevent unexpected downtime.

Troubleshooting and service tips

Maintaining proper coolant levels and checking for impeller wear can help prevent serious engine damage caused by thermal fluctuations.

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.