The cylinder liner and piston rings having frictional losses in the account of 20% of mechanical losses. The frictional losses can be reduced in the piston rings and cylinder liners, it causes higher efficiency and lower fuel consumption. The piston, piston rings and cylinder liners can also work at the higher temperatures and higher pressures and it reduces the frictional losses. In this project the design of piston, piston rings and cylinder liners are modelled in CATIA V5. The design of the engine parts is complex and efficiency is related to the type of material. The material is taken as ALUMINIUM-FLYASH-ALUMINA composite. Here the analysis is made in the ANSYS software where structural and thermal analysis of the piston can be determined.