21974080 Compatible Water Pump — Volvo FMX

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, facilitating the continuous circulation of coolant between the engine block and the radiator. By maintaining consistent thermal management, it prevents overheating and ensures the longevity of high-strength engine components in demanding environments.

Compatible Volvo models and engines

This part is specifically engineered for Volvo FMX 370, 410, 430, 450, and 330 models equipped with D13K engines. It is also compatible with several Volvo FM series applications, including the FM 330, 370, 410, and 450 models. This ensures precise fitment for heavy commercial vehicle fleets and construction machinery.

Maintenance and installation guidance

When performing cooling system maintenance, technicians should inspect the pump housing and impeller for signs of cavitation or leakage. It is recommended to check the mechanical seals and gaskets during routine belt service to prevent coolant loss. Proper installation ensures stable flow rates and prevents bearing-related noise.

Troubleshooting cooling system performance

Regular monitoring of coolant levels and inspection of the pump area can help identify early signs of wear before they lead to engine overheating. Consult your authorized distributor to ensure correct part selection for your specific engine configuration.

OE cross-reference

525.03.0009 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21974080.