Cummins
Piston kit for Cummins engines
This piston kit 4090029 includes the piston, piston rings, and pin for Cummins engines. It is designed for engine maintenance and internal combustion repairs.
Specifications
- Part number
- 4090029
- Brand
- Cummins
The piston kit 4090029 is a comprehensive assembly used for the maintenance and repair of Cummins engines. This kit consists of the piston, a set of piston rings, and the piston pin. Within the engine, the piston serves to convert the energy generated by the expansion of combustion gases into linear motion, which is subsequently transmitted to the crankshaft to produce mechanical power. The piston rings are responsible for sealing the combustion chamber, managing oil consumption, and facilitating heat transfer from the piston to the cylinder walls.
This component is compatible with various Cummins engine applications found in heavy machinery, industrial cranes, construction equipment, and marine vessels. Proper installation of these components is necessary to restore engine compression and efficiency. The assembly ensures that the internal clearances and ring tension meet the technical requirements for the engine's combustion cycle.
In internal combustion engines, the piston and ring assembly manages the pressure and friction generated during operation. By maintaining a proper seal between the piston and the cylinder bore, these parts prevent blow-by gases from entering the crankcase and ensure the engine maintains its intended power output.

