21781059 Compatible Water Pump — Volvo FH16

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. Engineered for durability, it maintains consistent thermal regulation to prevent engine overheating during long-haul operations.

Vehicle and engine compatibility

Specifically designed to fit Volvo FH16 trucks with D16E engines, this part ensures precise fitment and reliable performance. It is also compatible with other heavy commercial vehicle engines requiring similar specifications. Consult your authorized distributor for more information.

Installation and maintenance

For optimal maintenance, technicians should inspect the pump during every timing belt or alternator belt service. When replacing, it is essential to ensure all cooling passages are clear and that mounting surfaces are prepared to prevent leaks.

Troubleshooting and selection

Regular monitoring for coolant leaks from the weep hole or unusual bearing noise can prevent sudden engine failure. Selecting high-strength components ensures the cooling system remains stable under extreme thermal stress.

OE cross-reference

525.03.0009 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21781059.