Leading The World In Precision Valve Seat Inserts

Our Core Values Define Us.

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. They are proud to produce the world’s best valve seat inserts! From our headquarters and original U.S. manufacturing facility in Menominee, Michigan—to our new manufacturing facilities in China producing products for use in emerging markets—L.E. Jones partners with a roster of international customers such as Caterpillar, Volvo, Cummins, and over one hundred others. Take a brief look at the L.E. Jones Company and see why—when it comes to quality valve seat inserts—the world comes to L.E. Jones.

  • We’re a family-owned business committed to meeting the needs of our customers and employee families, creating jobs, and supporting our community.
  • We are committed to the safety and security of all our employees and strive for zero incidents.
  • We believe in developing a professional, accountable workforce that strives to maintain the viability of our company.
  • We cultivate teams, foster cooperation, and share a mutual respect for each other.
  • We identify, openly communicate, and address problems.
  • We are committed to environmental stewardship and good housekeeping.
  • We take pride in our workmanship, the new products, and processes that we develop, and the relationships developed with our customers.
  • We continually pursue True North improvements in quality, delivery, productivity, and employee development ensuring our company’s long-term success.
  • We invest capital resources to remain technologically current while upgrading existing equipment for improved and continuous capability and productivity, and on-time delivery.


Our Mission

L. E. Jones Company develops and produces one thing: precision valve seat inserts for the world’s premier engine manufacturers. Our customer’s needs are met through enhanced process technology, focused product support, and capacity management, dedicated associates, and on-time delivery.

Vision Statement

We aspire to be the most sought-after supplier of valve seat inserts for engine producers worldwide through continuous improvement and product/process development. Driven by our employees’ contribution and creativity, we seek to partner with our customers to ensure that they receive the highest value in terms of price, quality, and technical support.