The 2003 to 2007 Heavy Duty Stainless Steel Exhaust Gas Recirculation Cooler Kit is a CARB compliant, flanged kit that includes a 1.4 inch inlet inside diameter, a 1.8 inch outlet inside diameter, and measures 28.3 inches in overall height, 4 inches in overall length, and 5 inches in overall width. This kit includes 1 EGR cooler, 2 gaskets, and 6 O-rings. It is a direct replacement for the original part on specified vehicles, and has been rigorously tested for fit, reliability, and durability. Backed by a team of product experts with over a century of automotive experience, this kit fits most makes and models from 2003 to 2007 and has direct OE replacement numbers for Cummins.