Komatsu
Piston for Komatsu SA6D105 engine
This engine piston is designed for the Komatsu SA6D105 diesel engine. It features integrated grooves for piston rings to ensure proper sealing of the combustion chamber.
Specifications
- Part number
- SA6D105
- Brand
- Komatsu
This piston is a core component of the Komatsu SA6D105 diesel engine assembly. It is engineered to facilitate the conversion of combustion energy into mechanical motion, transmitting force to the crankshaft during engine operation. The component includes specific grooves designed to house piston rings, which maintain the seal of the combustion chamber and regulate oil consumption within the cylinder bore.
The SA6D105 part number corresponds to engines utilized across various Komatsu heavy machinery, including excavators and wheel loaders. This piston is manufactured to meet the dimensional and functional requirements of the SA6D105 engine series, ensuring compatibility with the internal geometry of the cylinder block. It is designed to function within the specified compression ratios and thermal conditions of the engine.
In an internal combustion engine, the piston serves as the primary moving part that contains the pressure generated by the fuel-air mixture ignition. By reciprocating within the cylinder, it transfers energy through the connecting rod to the crankshaft. Proper fitment and condition of the piston are necessary to maintain engine compression, prevent blow-by, and ensure the efficient conversion of chemical energy into the mechanical power required for heavy equipment operation.

