Durafit replacement DOC for Cummins ISX / Navistar N13 (5313770 / C20-0117)

Durafit replacement Diesel Oxidation Catalyst (DOC) for Cummins ISX and Navistar N13 Engines. **Gaskets included!** Replaces OEM Numbers: 2510787C91, 2510787C92, 5313770, 4353274, 4353274NX, 4353274RX, 5313770NX, 5313770RX. Redline part number: REP 58117 DuraFit DPFs and DOCs are so durable they come with a nationwide 3-year, unlimited mileage warranty.  Made in the USA! Cannot be sold or shipped to California at this time.