The 2003-2007 Dodge Cummins 5.9L turbo diesel automatic pickups came equipped with a 48RE transmission. The 48RE transmissions were really designed for about 570 lb-ft of torque from the factory. Meanwhile, the standard Cummins in this year range has peaked at 610 lb-ft from the factory. The limits of the 48RE transmission are quickly understood especially when performance modifications have been added to the vehicle. Randy’s Transmissions understand the limits of the 48RE and really knows what it takes to make a reliable 48RE hold up to whatever the end user is doing with their Dodge Cummins pickup. Randy has spent 1,000’s of hours building, designing, and breaking transmissions to gain the knowledge and understanding what it takes to build a 48RE to the level you need. That’s why Randy’s transmissions have more new replacement parts than any other remanufacture in the industry. Browse our Dodge Cummins 48RE transmission line-up by Randy’s Transmission and if you have any question please feel free to contact us and we will gladly help you decide what Randy’s transmission would be best fit for your needs.