21648711 Water Pump for Volvo FH D11K

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. Built with heavy-duty grade materials, it is designed to withstand the intense thermal and mechanical stresses found in heavy commercial vehicle engines.

Vehicle and engine compatibility

This component is specifically compatible with Volvo FH models, including variants such as the 400, 420, 440, 460, 480, 500, 520, and 540. It is engineered to fit Volvo FH (FH4/FH5) units equipped with the D11K engine series.

Installation and maintenance

For optimal performance and to prevent engine overheating, technicians should inspect the pump during routine belt service. Key indicators for replacement include coolant leakage from the weep hole or unusual mechanical noise during operation. Ensuring correct fitment is essential for maintaining system integrity.

Troubleshooting and replacement

Proper maintenance of the cooling circuit prevents premature wear on other engine components. When replacing this unit, it is recommended to check the condition of all related hoses and seals to ensure a leak-free installation.

OE cross-reference

525.03.0008 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21648711.