J-Mark has been a supplier of quality accessory products to the automotive aftermarket for 35 years.  The company was one of the first to manufacture and market extruded aluminum running boards in the mid seventies, and has continued to set standards in the industry for quality custom fit running boards and other truck accessories.

Since acquiring the company in 1981, Gary Henriksen has diversified J-Mark into more that just an aftermarket running board company.

J-Mark also manufactures products on an OEM basis for Chrysler, Ford and General Motors.  These OEM relationship, rare in the aftermarket industry, attests to the excellence in quality and design built into each of the companies products.

The company's 79,000 square foot manufacturing facility is located in the northwest suburb of Minneapolis in Plymouth, Mn.

As a "full-line" manufacturer, J-Mark offers a wide array of products for your truck, van, or sport utility vehicle.  The companies newest accessory offering "Oval Diamond Tube Steps" are the first diamond tube steps available for trucks.  The patent pending design of the tube and its accompanying braces confirm that J-Mark remains on the leading edge of design and engineering.