SunCoast SC-48-1 Category 1 48RE Transmission Rebuild Kit with Billet Single Disc Converter | 2003-2007 Ram 5.9 Cummins

• Ensures a leak-free rebuild with premium materials
• Includes selective washers to precisely set endplay for a smooth, long-lasting build
• Raybestos GPZ Clutches & Steels provide superior friction material for increased durability
• Strengthens shift components and prevents common 48RE failures
• Fits All 2WD & 4WD 48RE Transmissions

Unleash the Full Potential of Your 48RE with SunCoast's Category 1 Rebuild Kit

If your 2003-2007 Ram 5.9L Cummins is still running a stock or worn-out 48RE transmission, it's time for a serious upgrade. The SunCoast Category 1 48RE Rebuild Kit is engineered to eliminate weak points, improve durability, and enhance overall performance”all while maintaining smooth and precise shifts. Whether you're towing heavy loads, pushing higher power levels, or simply want a stronger, longer-lasting transmission, this rebuild kit provides proven, race-inspired upgrades that outperform the factory design. With high-performance Raybestos GPZ clutches, upgraded billet internals, and a billet single-disc torque converter, this kit gives your 48RE the strength it needs to handle heavy-duty abuse and high torque demands. If you're looking for bulletproof reliability, SunCoast delivers the ultimate solution for a rock-solid 48RE rebuild.

Precision Engineering & Unmatched Durability

SunCoast's Category 1 Rebuild Kit isn't just a refresh”it's a complete performance-driven upgrade for the 48RE transmission. The Raybestos GPZ clutch packs provide exceptional heat resistance and improved holding capacity, ensuring smoother shifts and greater longevity under heavy loads. A custom-machined overdrive pressure plate and upgraded snap rings reinforce the transmission's weakest points, while the billet intermediate servo, billet accumulator piston, and billet band components dramatically improve apply pressure and shift response. The high-flow 48RE transmission filter and SunCoast Pan Gasket ensure cleaner fluid operation and reduced friction, preventing premature wear. With a comprehensive gasket and thrust washer kit, this rebuild is designed for easy installation, optimal fluid flow, and maximum reliability”everything you need to transform your 48RE into a powerhouse of durability and performance.

Billet Single Disc Torque Converter Redefines Strength

The SunCoast Billet Single Disc Low-Stall Torque Converter included in this kit is a game-changer for torque transfer and efficiency. Featuring a custom billet low-stall stator, this converter lowers stall speed to enhance efficiency, increase holding capacity, and reduce excessive heat buildup. Built with carbon graphite clutch material, this converter ensures maximum durability under extreme conditions, while the precision CNC-machined forged billet apply piston prevents deflection for consistent, reliable lock-up engagement. Whether you're towing, daily driving, or pushing performance upgrades, this high-quality billet torque converter is designed to handle the increased torque demands of the 5.9L Cummins while providing smoother power delivery and improved fuel efficiency.

• 4 Raybestos GPZ forward frictions with steels
• 6 Raybestos GPZ clutches with steels
• 10 Raybestos overdrive clutches with steels
• Custom machined overdrive pressure plate
• .073 custom snap ring for forward clutch pack
• 48RE front pump bushing
• Raybestos Pro Series carbon fiber flex band
• Suncoast Pan Gasket
• SunCoast 48RE paper/rubber/gasket kit
• 48RE thrust washer kit
• SunCoast Billet accumulator piston
• SunCoast billet intermediate servo
• 4.4 billet band lever
• Billet band strut
• Billet band anchor
• SunCoast Billet single disc low-stall torque converter

• $500 Refundable Core Charge applies.