Detroit Diesel Air Inlet Adapter. Used on 10 ton HEMTT military and airport trucks. OEM P/N 8923341, 8924250. Oshkosh 2AG457. NSN 2990-01-165-1507. New Old Stock, a little light surface oxidation is visible in photos. Verify your application New cost is over $500. Get it here and save some bucks We ship quickly and carefully R3C8 13542