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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.
🔧 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
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.
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
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.
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
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