21221878 Volvo FH Water Pump

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 and the radiator. By maintaining stable operating temperatures, it prevents overheating during high-load operations typical in heavy commercial vehicle service.

Compatible Volvo vehicles

This component is specifically compatible with Volvo FH models, including variants 400, 440, 480, 500, and 520. It is also designed for use in Volvo FH16 vehicles equipped with D16G engines. These parts are essential for maintaining engine longevity in demanding environments.

Installation and maintenance

To ensure proper installation, technicians should inspect the mounting surfaces and check the condition of the drive belts during replacement. Maintaining a clean cooling system and using high-strength components helps prevent common issues like bearing play or coolant leaks from the weep hole.

Troubleshooting and selection

Regular inspections of the water pump during scheduled maintenance intervals can help prevent sudden engine overheating. For precise fitment, always verify the engine code and check the compatibility list.

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.