21218878 Compatible Water Pump — Volvo FH

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine block and the radiator. By maintaining constant flow, it prevents overheating and ensures the engine operates within its ideal temperature range, even under the high-load conditions typical of heavy commercial vehicle operations.

Compatible Volvo FH vehicles

This component is specifically designed for fitment in Volvo FH models, including variants 400, 440, 480, 500, and 520. It is also compatible with Volvo FH16 engines equipped with the D16E engine type. The pump is engineered to withstand high temperatures and significant vibrations encountered during long-haul transport.

Installation and maintenance

For professional installation, technicians should inspect the drive belt and mounting surfaces during replacement. It is recommended to check for any signs of coolant leakage from the weep hole or unusual bearing noise during routine maintenance intervals to prevent sudden engine overheating.

Troubleshooting guidance

Always verify compatibility using the engine code or chassis number to ensure precise fitment with the cooling system components.

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 21218878.