SUNCOAST Cummins 5.9L 48RE Transmission 2004.5 - 2007

DIESELR SunCoast 48RE Transmission (2004.5–2007 5.9L Cummins)

The SunCoast 48RE Transmission line for 2004.5–2007 5.9L Cummins trucks is engineered to address factory weaknesses and deliver unmatched durability. Whether you’re replacing a worn-out stock unit, towing heavy every day, or building a high-horsepower rig, SunCoast offers a full lineup—from stock-ready Ranger builds to 2,000+ HP M3GA competition transmissions.

Every transmission is hand-assembled, vacuum-tested, and built with billet internals, recalibrated valve bodies, upgraded clutch packs, and SunCoast’s proven torque converters. The result: crisp shifts, stronger torque transfer, and long-term reliability for your Dodge Ram 2500/3500.

 Variants

• 48RE Ranger – Stock replacement with converter (2WD / 4WD)
• 48RE Guardian – Heavy-duty unit (with or without converter) for towing & work trucks
• 48RE CAT 1 (450HP) – Performance build, with or without converter (2WD / 4WD)
• 48RE CAT 2 (550HP) – High-strength build with billet input shaft, with or without converter (2WD / 4WD)
• 48RE CAT 3 (600HP) – Race-ready build, billet shafts & flexplate, with or without converter
• 48RE CAT 4 (750HP) – Extreme performance transmission, with or without billet triple-disc converter
• 48RE CAT 5 (1200HP) – Full billet internals, flexplate, converter options for extreme builds
• 48RE M3GA Comp (2000+ HP) – Competition transmission with billet shafts, drums, and triple-disc converter

 From stock reliability to track domination, SunCoast’s 48RE series has a solution built for your exact power level and use case.