525.01.0040 Mercedes-Benz Compatible Water Pump

What does a water pump do?

This water pump serves as a critical component within the engine cooling system, responsible for the continuous circulation of coolant between the engine block, cylinder head, and radiator. By maintaining a steady flow, it prevents thermal stress and ensures the engine operates within its optimal temperature range during heavy-duty service.

Compatible vehicles and engines

The component is specifically engineered for Mercedes-Benz ACTROS MP2 / MP3 trucks. It is fully compatible with several engine variants, including the OM 501 LA, OM 501 LA.III, and OM 501 LA.III/9 engines. This ensures precise fitment for various vehicle configurations within the ACTROS series.

Installation and maintenance

For professional technicians and fleet managers, it is recommended to inspect the pump housing and impeller during routine maintenance. When replacing the pump, it is best practice to check all belts and gaskets to ensure a complete and leak-free installation. Proper mounting ensures long-term durability under high-pressure operating conditions.

Selection guidance

Consult your authorized distributor to verify exact fitment for your specific engine code.

OE cross-reference

525.01.0040 (Water Pump Water Pumps) is the equivalent of the Mercedes-Benz OE numbers. This part directly replaces Mercedes-Benz OE numbers 5412002001, 5412002301.