a cylindrical, metal component one or more rings to provide a seal a wrist pin that runs through the center of the cylinder to connect the piston to the crankshaft one or more connecting rods to link the piston to the crank a combustion chamber in the center of the cylinder a valve system to allow air and fuel to enter and exhaust to escape
piston which is a cylindrical, metal component piston which has one or more rings to provide a seal piston which is a wrist pin that runs through the center of the cylinder to connect the piston to the crankshaft piston which has one or more connecting rods to link the piston to the crank piston which is a combustion chamber in the center of the cylinder piston which is a valve system to allow air and fuel to enter and exhaust to escape