The 36.06 Inch Cummins Selective Catalytic Reduction Systems with a 13.62 Inch Diameter are designed to meet EPA10 exhaust emission norms. Manufactured with stainless steel construction, these systems are made to match OE performance and provide high durability and effectiveness. With an extended lifetime and higher efficiency, they are a practical choice for most Cummins makes and models. Each system includes clamps and gaskets for easy installation. Direct OE replacement numbers include 1821898PE, 1894310PE, 1909949PE, 205670A, 205857A, 1821898, 1894310, 1909949, 205670, 205857, and OTR58089.