YOUNG IL PRECISION was established in the year of 2000 Since established, we have been making the valve train components of 4-stroke diesel engines. Our products are such as swing arm assemblies (tappet assemblies in case of MAN type), push rods, rocker arm & yoke assemblies, valve rotators, valve cotters, valve guides and piston pins. We have supplied those components for all kinds of Himsen-engines to Hyundai Heavy Industries for over than past 20 years. With our long experiences in these valve train parts, we are now providing the valve train components for Daihatsu and Mitsubishi engines, and piston pin for the world class piston makers as well. If you are looking for a reliable partner for the valve train components, you do not need to do that anymore. We, Youngil Precision, are the very partner that you have been looking for.