SunCoast 618-BDD Billet Drum | 1994-2007 Dodge RAM 2500/3500 5.9L Cummins

Features:

• CNC machined from solid C1040 steel
• Contains no cast iron components
• Increases piston apply area by 55%
• Doubles clamping force in third gear
• Holds 5 to 6 friction plates
• Built for high-performance automatic transmissions
• Enhances third gear holding power
• Ideal for towing and racing applications
• Significantly reduces clutch slip under load
• Precision engineered for durability and strength
• Designed specifically for 5.9L Cummins trucks
• Compatible with 1994–2007 Dodge 47RH/47RE/48RE transmissions

Put Real Strength Behind Your Shifts

If you’ve built your Cummins to haul heavy, race hard, or just flat-out last, you can’t overlook the transmission. The SunCoast 618-BDD Billet Drum is exactly what you want when stock just won’t cut it anymore. This is not some off-the-shelf replacement, it’s CNC machined from solid C1040 steel and contains absolutely no cast iron. That means you’re getting next-level durability built to handle serious torque and aggressive driving. What really makes this drum shine is the 55 percent increase in piston apply area, giving you nearly double the clamping force in third gear. That’s a game-changer for guys dealing with clutch slip or building a truck that lives under load. Whether you're towing, racing, or just want your transmission to hold strong through it all, this billet drum makes sure your power makes it to the pavement. It’s strength, precision, and peace of mind, all in one piece of hardware.

Precision Machined To Handle Serious Third Gear Loads

The SunCoast 618-BDD Billet Direct Drum is engineered for maximum durability and holding power in high-stress 5.9L Cummins applications from 1994–2007. Made from C1040 solid steel, this drum eliminates the weakness found in cast iron factory components. With a 55 percent increase in piston apply area, it significantly improves the clamping force applied to the clutch pack, especially in third gear, which is often the most stressed in modified trucks. The increased capacity allows for 5 to 6 friction plates, giving the transmission more surface area to manage high horsepower without slipping. This is particularly important for trucks used in heavy towing, drag racing, or performance street builds. It is compatible with Dodge 47RH, 47RE, and 48RE automatic transmissions, offering a direct fit and a dramatic upgrade in strength. SunCoast's attention to detail and commitment to quality make this a trusted upgrade for builders who want more than stock performance.

Fits: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Designed for Dodge 47RH, 47RE, and 48RE transmissions
• Fits 1994–2007 5.9L Cummins-powered RAM 2500/3500 trucks
• Constructed from CNC machined solid C1040 steel
• Does not contain any cast iron components
• Offers a 55% increase in piston apply area
• Provides nearly double the clamping force in third gear
• Supports 5 to 6 friction plates depending on setup
• Ideal for high-performance, towing, and racing applications
• Recommended for trucks with increased power and torque output
• Professional installation is advised for best performance