SunCoast SC-48RECAT1-04507-4WD Category 1 450HP 48RE Transmission with Converter | 04.5-07 Ram 5.9L Cummins

Features:

• Rated for 450HP
• Custom calibrated, lab-tested valve body for smooth, optimized shifts
• High-flow 48RE filter for superior fluid filtration
• SunCoast billet triple-disc torque converter for maximum efficiency and power transfer
• New thrust washers & Torrington thrust bearings for longevity

Say Goodbye to Stock Transmission Failures

If you rely on your 2004.5-2007 Ram 5.9L Cummins for towing, hauling, or performance driving, the SunCoast Category 1 450HP 48RE Transmission is the upgrade you need. Designed for durability and reliability, this transmission delivers smooth, responsive shifts and enhanced torque capacity to handle demanding conditions. Factory 48RE transmissions struggle under load, but SunCoast has addressed each weak point with precision-engineered billet components. Whether you're tackling heavy-duty workloads or enjoying an upgraded performance setup, this transmission ensures your power reaches the ground efficiently and reliably.

Built to Handle High Torque, Heavy Loads, and Aggressive Driving

The SunCoast 48RE transmission is built to outlast and outperform stock with a series of strategic upgrades. A billet accumulator piston eliminates the common failure of the factory plastic piston, restoring hydraulic integrity and reliability. To prevent second-gear band burn-up, SunCoast replaces the factory cast servo with a larger billet servo for stronger apply pressure and better release. The pro-series carbon fiber band, billet band anchor, and billet band strut enhance friction performance and strength. With a custom-calibrated valve body, increased line pressure, and a new SunCoast-proprietary separator plate, this transmission is optimized for heavy loads, aggressive tuning, and everyday reliability.

Eliminate Slip and Maximize Efficiency with SunCoast’s Converter

The SunCoast billet triple-disc torque converter is designed to eliminate slip, reduce heat, and improve power transfer over the stock unit. Featuring carbon-graphitic clutch material and a precision-machined billet apply piston, this converter ensures zero deflection and long-lasting performance. Whether you're towing at max capacity or putting down serious torque, this high-stall, high-efficiency converter delivers firmer lockup and smoother engagement, ensuring your Cummins operates at peak efficiency and performance.

Vehicle Fitment: 2004.5-2007 Ram 5.9L Cummins

Notes:

• $2,500 Core charge applies.