Randy's Transmission 4847DIYS2 47RE Transmission Builder Kit 650HP Rated | 2003.5-2007.5 Dodge RAM 2500/3500 5.9L Cummins

Features:

• Supports builds up to 650 horsepower
• Includes Randy's Triple Lock torque converter
• Comes with billet input shaft and piston
• GPZ clutches and steels for high durability
• Borg Warner overdrive direct clutch upgrade
• TransGo Pro Shift Kit improves shift performance
• Includes billet flexplate and band strut
• Sonnax super servo and billet accumulator included
• Heavy-duty flexband for added holding power
• Complete gasket and seal kit provided
• Borg Warner solenoid and high pressure transducer
• Designed for 2003.5–2007.5 47RE Cummins trucks

Build Your Transmission With Confidence And Big Power Goals

If you’re looking to take your 47RE transmission to the next level without cutting corners, the Randy's Transmission 4847DIYS2 Stage 2 Builder Kit gives you everything you need to do it right. Rated to handle up to 650 horsepower, this kit is built for those serious about putting real power to the ground and keeping it there. Whether you're towing, racing, or running a high-performance street build, the included components are purpose-selected to offer unbeatable strength and reliability. From Randy’s Triple Lock torque converter to the billet input shaft and high-performance clutches, every part is designed to work together under intense pressure. It’s a true DIY setup for the enthusiast or builder who wants top-tier performance without guessing what to upgrade. You’re not just getting parts, you’re getting a proven recipe that stands up to real-world abuse. If your Cummins-powered RAM is ready for a serious transmission build, this kit is your next step forward.

Complete Kit With Proven Internals And Power Handling

The Randy's Transmission 47RE Stage 2 Builder Kit includes a fully matched lineup of high-performance internals designed to upgrade 2003.5–2007.5 Dodge RAM 2500 and 3500 trucks equipped with the 5.9L Cummins. At the heart of the kit is a billet input shaft paired with a billet piston, built to handle high torque loads and reduce the risk of shaft failure under extreme conditions. The GPZ clutch and steel combo, along with Borg Warner overdrive clutches and a heavy-duty flexband, provides improved holding power and long-term durability. Also included are a billet accumulator, billet band strut, Sonnax super servo, and TransGo Pro Shift Kit, all working together to deliver crisp shifts, reduced slippage, and consistent pressure control. The kit includes a high-pressure transducer, Borg Warner governor pressure solenoid, Mopar neutral safety switch, and a complete gasket and seal kit for a full rebuild. Topping it off is a Goerend Bellview spring upgrade and billet flexplate, making it ideal for both high-load towing and competition use. This is a builder-focused kit that delivers both in strength and precision, giving you the right components to take your 47RE beyond stock limitations.

Fits: 2003.5, 2004, 2005, 2006, 2007 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Fits 2003.5–2007.5 Dodge RAM 2500/3500 with 5.9L Cummins
• Designed for the 47RE automatic transmission
• Rated for builds up to 650 horsepower
• Includes Randy’s Triple Lock torque converter
• Features billet input shaft and billet piston
• GPZ clutches and steels for enhanced durability
• Borg Warner overdrive direct clutch upgrade included
• Comes with TransGo Pro Shift Kit for firmer shifting
• Includes billet flexplate and billet band strut
• Sonnax super servo and billet accumulator included
• Complete gasket, seal, and bushing kit provided
• Professional installation or experienced DIY build recommended