The Caterpillar 11 Inch Outside Diameter Diesel Particulate Filter Gasket is a reliable and practical solution for your diesel engine needs. With its 11-inch outside diameter and 10 1/8-inch inside diameter, this gasket is designed to fit most Caterpillar Diesel Particulate Filters. Made with stamped metal construction material, it ensures durability and longevity. Sold individually, this gasket is compatible with various OEM and aftermarket numbers, including 279-3259, G01001, E30-0119, ENV-G-CAT1, 4501030, and SG-RE-11-E-A1. Trust this high-quality gasket to provide a secure and efficient seal for your diesel particulate filter.