SunCoast SC-48RECAT3-04507-4WD Category 3 600HP 48RE Transmission with Converter | 04.5-07 Ram 5.9L Cummins

• Pro-series carbon-graphitic band for superior friction and shift quality
• Custom-calibrated, lab-tested valve body for precise shifts
• High-flow 48RE filter for improved fluid circulation
• Double-deep pan for increased fluid capacity and cooling
• Billet accumulator piston to eliminate leaks and failure
• Custom-ratio billet band lever for increased holding power

Unleash the Power of Your 5.9L Cummins

If you're looking to push your 2004.5-2007 Ram 5.9L Cummins to its full potential, the SunCoast Category 3 600HP 48RE Transmission is the upgrade you need. Designed for heavy towing, high-performance street driving, and extreme durability, this transmission is built to handle up to 600 horsepower with ease. Whether you're hauling massive loads or pushing a modified Cummins to the limit, this transmission provides superior strength, smoother shifts, and unmatched reliability. SunCoast’s expert engineering eliminates the weak points of the factory 48RE, ensuring long-lasting performance under the harshest conditions.

Precision Engineering for Maximum Durability

The factory 48RE transmission has several weak points that lead to premature failure, but SunCoast has addressed them all with high-strength billet components and hydraulic integrity enhancements. The billet accumulator piston prevents cracking and leaking, while the billet servo upgrade increases apply pressure for stronger shifts. The pro-series carbon-graphitic band delivers superior friction performance, significantly reducing second-gear burn-up issues. Additionally, a custom laser-cut separator plate optimizes line pressure and increases fluid volume for consistent performance under high torque loads. With an upgraded billet one-piece input shaft made from 300 Maraging steel, this transmission can handle extreme stress without failure. Plus, every unit includes a recalibrated valve body and pump, ensuring precise shifts and enhanced drivability tailored to towing, street, or race applications.

Heavy-Duty Billet Torque Converter for Maximum Power Transfer

The included SunCoast billet torque converter is built to outperform the weak factory unit, offering increased torque multiplication and improved lockup performance. This high-stall, triple-disc billet converter enhances efficiency by eliminating slip, reducing heat, and providing stronger, more consistent power delivery. Whether you're towing heavy loads or launching at the track, this converter ensures your power reaches the wheels with maximum efficiency. Paired with an SFI-certified billet flexplate, this setup eliminates flex and failure points, offering unparalleled durability and smooth engagement.

• $2,500 Core charge applies.