The Regular Grade Replacement Diesel Oxidation Catalyst is a reliable and durable solution for vehicles with OE Number 2888250NX. This direct replacement catalyst is designed to restore functionality and ensure a long service life. Made from quality materials, it offers reliable performance. Please note that this product is not for sale in California and is not CARB compliant. It fits most Freightliner, International, Kenworth, Peterbilt, Roadmaster Rail, Spartan Motors, and Volvo models from 2007-2008 with the ISX 15.0 Cummins Engine. Upgrade your vehicle's catalyst with this practical and efficient solution.