Duco, piston rings, and cylinder kits are essential components in engine systems. They play a crucial role in ensuring the efficient operation of the engine by maintaining proper compression and sealing within the combustion chamber. These parts are designed to withstand high temperatures and pressures, as well as constant friction and wear. Duco is a material commonly used in the manufacturing of piston rings and cylinder kits. It is known for its durability and resistance to heat and corrosion. The piston rings are circular metal rings that are fitted around the outer diameter of the piston. They serve to seal the gap between the piston and the cylinder wall, preventing the escape of combustion gases and oil into the crankcase. The cylinder kit, on the other hand, consists of various components such as the cylinder liner, piston, rings, and other related parts. These components work together to create a smooth and efficient movement of the piston within the cylinder. The cylinder liner provides a smooth surface for the piston to move up and down, while the piston rings help to maintain proper compression and prevent oil leakage. One of the key functions of the piston rings and cylinder kits is to maintain compression within the combustion chamber.