21648708 Volvo FH16 D16K Engine 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 steady 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 and FH16 models

This part is specifically designed to fit Volvo FH series trucks, including variants 420, 460, 500, and 540. It is also fully compatible with Volvo FH16 models equipped with the D16K engine. These components are engineered to meet the rigorous demands of long-haul transport and heavy-duty service.

Installation and maintenance guidance

For optimal performance, technicians should inspect the pump during routine belt service. When replacing this component, it is recommended to check the condition of the timing belt and related seals to prevent future system failures. Proper installation ensures long-term reliability of the cooling circuit.

Preventative maintenance

Regular monitoring for signs such as coolant leaks or unusual bearing noise can help prevent serious engine damage caused by overheating.

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 21648708.