21221878 Volvo FH Water Pump

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine and the radiator. A reliable pump is essential for maintaining stable operating temperatures, especially under high engine loads and long-haul driving conditions typical of heavy commercial vehicles.

Vehicle compatibility and fitment

This component is specifically designed for fitment in Volvo FH series models, including variants such as the 400, 440, 480, 500, and 520. It is also compatible with various FH16 II and FH16 III engine configurations, ensuring precise performance for these heavy-duty applications.

Maintenance and inspection guidance

To ensure proper function, technicians should inspect the pump during belt service intervals. Signs of failure such as coolant leakage from the weep hole or unusual bearing noise should be addressed immediately to prevent engine overheating. Check the compatibility list.

Preventing engine overheating

Selecting a high-quality replacement helps maintain the integrity of the entire cooling system and prevents premature wear of internal engine components.

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.