Fits all 68RFE Automatic Transmissions behind the the 2007.5+ Dodge 6.7L Cummins Diesels. Deep high-capacity sump for maximum cooling Holds 2.5-3 quarts more than stock! Magnetic drain plug. All 303-type hardware except allen head cap screws, which are zinc plated. 1/8 NPT temperature sender port. Finned aircraft aluminum construction. Requires only three allen key wrenches (included) for installation and service. O-rings require no gaskets or sealants. Tranny runs cooler, lasts longer. NOTE: Will not work with 3500 Cab & Chassis trucks which have an Aisin transmission. All Mag-Hytec products are covered by a lifetime limited warranty to the original owner against defects in parts and workmanship. O-rings are covered for five years.