Kelderman Manufacturing is a Midwestern producer of aftermarket air suspension systems and accessories for ¾-ton and larger trucks, trailers, and RVs. Based in Oskaloosa, Iowa, we have over …

Put yourself and your truck above the competition with the best in heavy-duty truck lift kits from Kelderman Manufacturing. Our product offerings cover most late-model, ¾-ton and larger pickup trucks.

Gary Kelderman, the founder of Kelderman Manufacturing, Inc., is well respected for his work in the agriculture industry. His journey began in 1970 with a small shop responsible for repair work and odd …

Kelderman offers air suspension systems on everything from pickup trucks to RVs, trailers, chassis cab trucks, and more. Whether it’s a full 4-link suspension system or our unique 2-stage design, …

We specialize in heavy duty suspension systems to give your truck a better ride and give your farming equipment better capabilities. Shop our store for more.

Kelderman produces the highest quality bumpers available on the market today. Make your truck look exactly the way you want with our unique three-piece design, which provides a versatility that’s …

The Kelderman Down Corn Reel is the original corn reel and has been helping farmers harvest storm-damaged corn for decades. With more than 10,000 units in use, the Kelderman name has become …

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Kelderman Dealer Locator Find a Kelderman Dealer Near You! Kelderman has more than 150 dealers who are ready to serve you. Looking for one nearby? Check out our interactive map and contact …

Designed as a universal air suspension system for all Class 6 & 7 trucks with a 34″ frame, the Kelderman General Medium Duty 2-Stage Rear Air Suspension is one of our oldest and most …