The 19.29 Inch International And Navistar MaxxForce 11/13 Diesel Oxidation Catalysts are designed with a 13.17 inch diameter, making them a perfect fit for most International and Navistar MaxxForce 11/13 models. Manufactured according to OE technology, these catalysts are made to match OE performance and provide a direct OE replacement. With a stainless steel construction, they are built to last and come with clamps and gaskets included for easy installation. Measuring 27.37 inches tall and 13.17 inches wide, these catalysts meet the exhaust emission norm of EPA07. Sold individually, they are practical and reliable for improving your vehicle's performance.