21221878 Volvo FH Water Pump

What does a water pump do?

A water pump is a critical component of the engine cooling system that circulates coolant between the engine and the radiator to maintain an ideal operating temperature. This part is essential for preventing overheating during high engine loads and long-haul operations common in heavy commercial vehicles.

Compatible Volvo truck models

This water pump is specifically designed for Volvo FH series trucks, including the 440, 520, 480, 400, and 500 models. It is also compatible with the Volvo FH16 II range, covering variants such as the FH 16/750, FH 16/540, FH 16/550, FH 16/600, FH 16/700, FH 16/650, and FH 16/610. These components are manufactured using high-strength components to withstand continuous thermal stress.

Maintenance and replacement guidance

For optimal performance, technicians should inspect the pump during routine cooling system maintenance. Signs of wear include coolant leakage from the weep hole or unusual bearing noise. When replacing this component, it is recommended to check the condition of all belts and hoses to ensure complete system integrity.

Troubleshooting and selection

Selecting a high-quality replacement ensures that the cooling system maintains stable pressure and flow rates even under extreme operating conditions. Consult your authorized distributor for further assistance.

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.