21280077 Volvo FH FH16 II Water Pump

What does a water pump do?

This water pump is a critical component of the engine cooling system, designed to circulate coolant between the engine and the radiator. By maintaining consistent flow, it prevents engine overheating and ensures thermal stability under heavy-duty operating conditions. High-strength components are utilized to withstand the intense heat and mechanical stress typical in heavy commercial vehicle engines.

Compatible Volvo engines

This specific model is compatible with Volvo FH models including the 400, 440, 480, 500, and 520 variants. It is also fitted to Volvo FH16 II engines such as the FH 16/540, FH 16/550, FH 16/600, FH 16/610, FH 16/650, FH 16/700, and FH 16/750. These units are engineered to meet the rigorous demands of long-haul transport and heavy-duty service.

Installation and maintenance

For professional technicians, it is recommended to inspect the pump during routine belt services. When replacing a water pump, checking the condition of the thermostat and radiator hoses is advisable to ensure complete system integrity. Proper installation prevents leaks from the mechanical seal or bearing play that could lead to rapid coolant loss.

System protection

Maintaining a steady coolant flow is essential for protecting engine longevity in high-load environments. Consult your authorized distributor to verify specific fitment for your engine configuration.

OE cross-reference

525.03.0020 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21280077.