20744939 Volvo FMX D13K Engine Water Pump

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 block and the radiator. By maintaining consistent flow, it prevents overheating and helps the engine operate within its ideal thermal range, even under heavy-duty commercial vehicle workloads.

Vehicle compatibility and engine fitment

This specific unit is compatible with Volvo FMX 480, 440, and 400 models equipped with the D13K engine. It is also designed to fit various Volvo FM series trucks including the FM 480, FM 440, FM 380, FM 340, FM 300, FM 400, FM 360, FM 390, and FM 430 models. This ensures reliable performance for fleet managers and workshop technicians managing heavy commercial vehicle maintenance.

Installation and maintenance guidance

For optimal performance, technicians should inspect the pump housing and seals during routine cooling system service. It is recommended to check for signs of coolant leakage or bearing noise during belt replacement intervals. Maintaining a clean cooling system helps prevent impeller erosion and ensures long-term engine longevity.

Selection and reliability

Proper selection of a high-strength component is essential to prevent sudden overheating in construction machinery or tractor units. Always verify compatibility with your specific engine code to ensure a perfect fit during installation.

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 20744939.