21218878 Compatible Water Pump for Volvo

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 steady fluid flow, it prevents engine overheating and ensures stable operating temperatures under heavy-duty workloads.

Vehicle compatibility and engine fitment

This component is specifically designed to fit a wide range of Volvo FM series vehicles. It is compatible with Volvo FM II models including the 500, 420, 460, 330, 380, 430, 540, 480, 400, 440, and 370 variants. Furthermore, it fits Volvo FM III models such as the 500 LNG, 460 LNG, and 420 LNG, as well as standard Volvo FM models including the 480, 440, 380, 340, 300, 400, 360, 390, and 430.

Maintenance and installation guidance

For professional workshop technicians and fleet managers, we recommend inspecting the pump during routine belt service or when signs of coolant leakage appear. Ensuring correct installation helps maintain system integrity and prevents premature wear of other cooling components.

Troubleshooting and selection

When replacing this unit, always verify that the new component matches the existing mounting points and port specifications to ensure a seamless fit within the cooling circuit.

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 21218878.