The BD Diesel 1064194SST TowMaster Transmission & Converter Package with TapShifter is built for 2003–2004 Dodge Ram 2500/3500 4WD trucks running the 5.9L Cummins. Engineered to endure towing, aggressive driving, and high-output demands, this package delivers enhanced reliability and fingertip shift control via BD’s TapShifter. With upgraded internals, dyno-tested performance, and a billet-enhanced torque converter, this is a drop-in upgrade that overcomes the 48RE's stock limitations.

Includes transmission, torque converter, auxiliary filter kit, and TapShifter hardware. $2,500 core deposit required.

✅ Key Features

🔧 Transmission Highlights

• Upgraded valvebody with increased line pressure (190–200 PSI)

• Billet band lever and billet band strut

• Clutch Count: OD (6), OD Direct (10), Forward (5), Direct (6)

• High-temp Raybestos energy band

• Drilled intermediate shaft for improved lubrication

• Roller Torrington bearings replace stock bushings

• Upgraded governor solenoid & transducer (2x burst strength)

• Cooler line case saver

• BD rigid aluminum transmission pan (+2 qt capacity)
  – Heat-dissipating fins & magnetic drain plug

• BD full-flow auxiliary transmission filter kit

• Fully dyno-tested

• Not intended for race or sled pull applications

⚙️ Torque Converter Highlights

• Enhanced stall for street & towing performance

• Lower RPM response and improved fuel economy

• Torque-multiplying cast aluminum stator

• Furnace-brazed fins for increased fluid coupling

• Stamp-forged steel front cover

• Up to 3x the lock-up clutch material for durability

🕹️ TapShifter Features

• BD control module, gear display & shift lever

• Manual gear control and gear limiting function

• Manual torque converter lock-up control

• Plug-and-play sealed harness – no wire cutting required

🚙 Vehicle Compatibility

Fits the Following Applications:

• 2003 Dodge Ram 2500/3500 4WD 5.9L Cummins

• 2004 Dodge Ram 2500/3500 4WD 5.9L Cummins

For trucks originally equipped with the 48RE automatic transmission.

📦 What’s Included

• BD TowMaster 48RE Transmission – Part #: 1064194SST

• BD Enhanced Stall Torque Converter

• BD TapShifter Kit (shift lever, gear display, control module, wiring harness)

• BD Rigid Aluminum Deep Transmission Pan

• BD Auxiliary Full Flow Transmission Filter Kit

• Pre-installed internal upgrades & tested components

🛠️ Why Choose BD Diesel?

BD Diesel delivers precision-built, dyno-tested transmission and converter packages backed by real-world engineering. This 48RE setup with TapShifter takes drivability and control to the next level, ideal for towing and daily diesel duties. With billet internals, optimized pressures, and plug-and-play wiring, this package offers the durability and shift control your 5.9L Cummins deserves.