21280077 Compatible Volvo 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 maintaining consistent flow, it prevents overheating and ensures the engine operates within its thermal design limits during heavy-duty service cycles.

Vehicle and engine compatibility

This part is compatible with Volvo FH series engines, including the 400, 440, 480, 500, and 520 models. It is also fitted to Volvo FH16 II variants such as the 540, 550, 600, 610, 650, 700, and 750 models, as well as Volvo FH16 III engines including the 550, 650, and 750 variants.

Installation and maintenance

For optimal performance and longevity, technicians should inspect the pump during routine belt services. It is recommended to check for signs of leakage from the weep hole or unusual bearing noise during installation. Ensuring the correct fitment for these high-performance Volvo engines helps prevent system pressure drops.

Troubleshooting guidance

Consult your authorized distributor.

OE cross-reference

525.03.0020 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21280077.