The world comes to the L.E. Jones Company for the finest precision valve seat inserts. Since 1941 L.E. Jones has produced valve seat inserts of unparalleled quality for the world’s premier engine manufacturers. With our long history of global leadership, manufacturers trust L.E. Jones. We’re honored that many satisfied customers have recognized us and our exceptional valve seat inserts with awards for quality and service.L.E. Jones’ most valuable asset is our experienced, skilled workforce. Employees have an average of 24 years of experience and an enviable Midwestern work ethic.