The BD Diesel TowMaster 48RE Transmission with TapShifter is purpose-built to increase the durability and control of your 2005–2007 Dodge 5.9L Cummins 4WD truck. Designed for street-driven trucks that tow heavy loads, this package enhances drivability with fingertip gear control and a fortified transmission built to withstand high-stress conditions. The included BD TapShifter system offers full electronic gear selection, torque converter lock-up management, and manual shifting capability. Matched with upgraded internals, increased clutch counts, and a heavy-duty pan, this transmission is battle-tested and dyno-verified to deliver superior performance and reliability.

Note: BD torque converter is required for warranty coverage. Core deposit of $1,800 applies.

✅ Key Features

Transmission Highlights

• BD TapShifter system w/ gear lever, control module & gear display

• Dyno-tested 48RE with upgraded valvebody & pressure upgrades

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

• Billet band lever, band strut, and modified manual valve

• Increased line pressure: 190–200 PSI

• Raybestos high-energy band

• Cooler line case saver & BD full flow filter kit

• Heavy-duty aluminum pan w/ heat-dissipating fins (+2 qt capacity)

• Drilled intermediate shaft for added lubrication

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

• Sealed plug-in wiring – no cutting or tapping required

• Not warranted for race/sled pull use

TapShifter Benefits

• Full manual gear mode

• Gear limiting function

• Manual torque converter lock-up

• Easy fingertip control via BD display & shift lever

🚙 Vehicle Compatibility

Fits the Following:

• 2005 Dodge Ram 2500/3500 4WD 5.9L Cummins

• 2006 Dodge Ram 2500/3500 4WD 5.9L Cummins

• 2007 Dodge Ram 2500/3500 4WD 5.9L Cummins (non-6.7L only)

For automatic transmission-equipped trucks with 48RE.

📦 What’s Included

• BD TowMaster 48RE Transmission (Part #: 1064234FT)

• BD TapShifter kit: shift lever, control module, gear display, wiring harness

• BD Heavy Duty Aluminum Transmission Pan

• BD Auxiliary Full Flow Transmission Filter Kit

• Required sensors & wiring (sealed plug-in connections)

🛠️ Why Choose BD Diesel?

BD Diesel has built a reputation for engineering high-performance driveline solutions for diesel trucks under real-world conditions. Each 48RE transmission is dyno-tested to verify shift quality and pressure consistency. With billet upgrades, cooler flow protection, and a fully integrated TapShifter control system, BD ensures this package delivers both performance and longevity under heavy towing and daily driving demands. Built to endure—tested to prove it.