Demag
Water pump for Demag AC 300
This water pump facilitates coolant circulation within the engine cooling system of the Demag AC 300 all-terrain crane. It is designed to maintain proper operating temperatures for the diesel engine during operation.
Compatible models
Specifications
- Part number
- 42079912
- Brand
- Demag
The water pump 42079912 serves as a central component in the cooling system of the Demag AC 300 all-terrain crane. Its primary function involves circulating coolant through the engine block and the radiator to dissipate heat generated during the combustion process. By maintaining a consistent flow of coolant, the pump keeps the engine temperature within the manufacturer-specified operating range, which prevents overheating and protects internal engine components from thermal damage.
This component is specifically engineered for the Demag AC 300 diesel engine. It features an integrated impeller designed to move fluid effectively through the cooling circuit and utilizes mechanical seals to maintain system pressure and prevent leaks. Regular monitoring of the coolant system and the pump condition is necessary to ensure the cooling loop remains free of obstructions and that the impeller functions correctly under load.
In heavy machinery, a water pump acts as the heart of the thermal management system. It ensures that heat is transferred away from critical engine parts, such as the cylinder head and engine block, to the radiator where it can be released into the atmosphere. Proper circulation is necessary for the engine to maintain its efficiency throughout its duty cycle.

