JOST International

United States

Jost kingpins have proven themselves mile after mile over the world’s most challenging roads. Steel forged for superior strength, Jost kingpins deliver optimal balance between wear resistance and impact resistance. For quality, safety, and durability, Jost kingpins meet or exceed international standards for OEMs and fleet use in North America and internationally.

fifth wheel coupling devices globally since 1956 and we began manufacturing for the North America market at our Greeneville, Tennessee facility in 1999. In total JOST has supplied more than three million fifth wheels to the global market and there now hundreds of thousands on the road in North America. We believe that the market acceptance to our fifth wheel product is the result of advanced technologies particularly as it relates to safety of the locking mechanism and also to lifetime cost of ownership. JOST International fifth wheels are now available for specification at all major OEM’s. The links below document some of our OEM partnerships. For information on how to specify JOST on your next order contact your OEM sales representative or contact JOST for guidance.

The difference between the JOST landing gear design and older competitive products is obvious right from the first glance: there is no external gearbox! The gearing mechanism is an integral part of the sturdy leg column, which protects the gearing from abuse and most importantly minimizes significantly water intrusion, which is a very damaging element to landing gear with external gear housings. Our Magnum design keeps the mechanical advantages offered with the internal gear configuration and adds even more protection against the damage that water and road chemicals create. The gearbox on each leg is completely filled with a premium all weather lubricant- the legs are completely sealed to keep the grease in and everything else out. The elevating screws are completely encased by a grease tube; each time the legs are extended and retracted the screw receives a fresh coating of grease.