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
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BD TapShifter system w/ gear lever, control module & gear display
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Dyno-tested 48RE with upgraded valvebody & pressure upgrades
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Clutch Counts: OD (6), OD Direct (10), Forward (5), Direct (6)
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Billet band lever, band strut, and modified manual valve
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Increased line pressure: 190–200 PSI
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Raybestos high-energy band
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Cooler line case saver & BD full flow filter kit
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Heavy-duty aluminum pan w/ heat-dissipating fins (+2 qt capacity)
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Drilled intermediate shaft for added lubrication
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Upgraded governor solenoid & transducer (2x burst pressure)
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Sealed plug-in wiring – no cutting or tapping required
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Not warranted for race/sled pull use
TapShifter Benefits
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Full manual gear mode
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Gear limiting function
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Manual torque converter lock-up
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Easy fingertip control via BD display & shift lever
🚙 Vehicle Compatibility
Fits the Following:
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2005 Dodge Ram 2500/3500 4WD 5.9L Cummins
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2006 Dodge Ram 2500/3500 4WD 5.9L Cummins
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2007 Dodge Ram 2500/3500 4WD 5.9L Cummins (non-6.7L only)
For automatic transmission-equipped trucks with 48RE.
📦 What’s Included
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BD TowMaster 48RE Transmission (Part #: 1064234FT)
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BD TapShifter kit: shift lever, control module, gear display, wiring harness
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BD Heavy Duty Aluminum Transmission Pan
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BD Auxiliary Full Flow Transmission Filter Kit
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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.