21941086 Compatible Water Pump — Volvo FH16

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. Engineered for high-load operating conditions, it features high-strength components designed to withstand extreme temperatures and vibrations common in heavy commercial vehicle engines.

Compatible vehicles and engines

This part is specifically designed for Volvo FH16 trucks equipped with D16G engines, as well as Volvo FH series models including 420, 460, 500, and 540 variants. It is manufactured to meet the rigorous requirements of heavy-duty engine cooling cycles.

Installation and maintenance

When performing maintenance, technicians should inspect the pump housing and mechanical seals for any signs of leakage. It is recommended to inspect or renew the water pump during timing belt or alternator belt service intervals to prevent engine overheating due to component failure.

Troubleshooting and selection

If you encounter unusual noise or coolant leakage from the weep hole, it may indicate bearing play or seal wear. Always verify the engine code and chassis number to ensure exact compatibility with your specific engine configuration.

OE cross-reference

525.03.0005 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21941086.