21648708 Volvo FH II Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, responsible for the continuous circulation of coolant between the engine block and the radiator. By maintaining steady flow, it prevents engine overheating and ensures stable operating temperatures during heavy-duty cycles. It is built with high-strength components designed to withstand the rigorous thermal stresses found in heavy commercial vehicle engines.

Compatible Volvo truck models

This component is specifically designed to fit Volvo FH and FH II models, including variants such as the 380, 420, 460, 500, and 540. It is an essential replacement part for maintaining engine health in these specific truck series. The part is compatible with Volvo OEM specifications to ensure precise fitment and performance.

Maintenance and inspection guidance

When performing routine maintenance, it is recommended to inspect the water pump alongside the timing belt or alternator belt. Technicians should check for signs of coolant leakage from the weep hole or unusual bearing noise during engine operation. Proper installation ensures the integrity of the entire cooling circuit.

Troubleshooting cooling issues

Monitoring for coolant loss or temperature fluctuations can help identify potential issues before they lead to system failure.

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.