The Detroit Diesel 5 29/32 Inch Outside Diameter Diesel Oxidation Catalyst Gasket is a practical and reliable solution for your diesel oxidation catalyst needs. With its 5 29/32 inch outside diameter and 5 1/4 inch inside diameter, this gasket is designed to fit most Detroit Diesel catalysts. Made with graphite coned construction material and adhesive, it ensures a secure and durable seal. Whether you're using OEM or aftermarket numbers like A4709971245, 4709971245, AMS013, DD001, or G03004, this gasket is a perfect fit. Trust in its quality and enjoy the benefits of a well-functioning diesel oxidation catalyst.