Cummins
Fuel pump gasket for Cummins 6BTAA5.9-C178
This fuel pump gasket 4026171 ensures a seal between the fuel pump and the engine block. It is compatible with Cummins 6BTAA5.9-C178, KTA38C-1050, QSM11-C335, and QSM19-C700 engines.
Compatible models
Specifications
- Part number
- 4026171
- Brand
- Cummins
The fuel pump gasket serves as a sealing interface between the fuel pump assembly and the engine block or mounting surface. By creating a tight barrier, it prevents fuel leaks and the ingress of air into the fuel supply system, which helps maintain consistent combustion pressure and overall engine efficiency. This component is specifically designed to fit the mounting geometry of the fuel pump on the specified Cummins engine series.
This gasket is compatible with several Cummins engine models, including the 6BTAA5.9-C178, KTA38C-1050, QSM11-C335, and QSM19-C700. These engines are frequently utilized in industrial cranes, excavators, and various types of heavy machinery. Proper installation of this gasket is necessary to maintain the integrity of the fuel delivery circuit during operation.
In heavy-duty diesel engines, fuel pump gaskets are engineered to withstand contact with hydrocarbons and the thermal cycles experienced by the engine block. Their primary function is to compensate for surface irregularities between the pump housing and the engine, ensuring that the fuel system remains pressurized and free from external contaminants that could interfere with fuel delivery.

