21221878 Water Pump for Volvo FH16 D16E

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 stable operating temperatures, it protects the engine from overheating during high-load operations common in heavy commercial vehicles.

Compatible Volvo vehicles and engines

Designed specifically for Volvo FH series trucks including models 400, 440, 480, 500, and 520, as well as FH16 units equipped with D16E engines. This part is engineered to meet the rigorous demands of long-haul transport and heavy-duty duty cycles.

Installation and maintenance guidance

For professional technicians, it is recommended to inspect the drive belt and mechanical seals during installation. Ensuring correct alignment during assembly helps prevent premature bearing wear or coolant leaks from the weep hole. Consult your authorized distributor to confirm exact fitment for your specific engine configuration.

Troubleshooting and longevity

Maintaining a clean cooling system and replacing the pump according to service intervals helps prevent serious engine damage caused by thermal fluctuations.

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 21221878.