Speak with an Expert
Free* Shipping on Orders Over $159
Easy 30 Days- No Hassle Returns
37,000+ 5 Star Reviews
MFG Fitment Guarantee
Couldn't load pickup availability
Strengthen your drivetrain with the BD Diesel 1064194F TowMaster 48RE Transmission, built for 2003–2004 Dodge Ram 2500/3500 4WD trucks equipped with the 5.9L Cummins. Designed to solve the known limitations of the stock transmission, this package features upgraded internals, optimized line pressure, and enhanced cooling through BD’s heavy-duty aluminum pan. With BD’s TapShifter-ready wiring and control module included, it’s a smart long-term solution for daily driving and towing—without sacrificing OEM driveability.
BD torque converter required for warranty. $1,800 core charge applies.
🔧 Transmission Highlights
BD upgraded valvebody with 190–200 PSI line pressure
Clutch Packs: OD (6), OD Direct (10), Forward (5), Direct (6)
High-temp Raybestos energy band for extended wear resistance
Modified manual valve for lubrication in all gear positions
Roller Torrington thrust bearings replace stock bushings
Upgraded governor solenoid and transducer (2x burst strength)
Drilled intermediate shaft improves fluid flow
Cooler line case saver to protect against transmission failure
BD rigid aluminum transmission pan with +2qt capacity
Heat-dissipating fins & magnetic drain plug
BD full-flow auxiliary filter kit
Dyno-tested prior to shipment
Optional billet input shaft available
Not designed for race or sled pull applications
🕹️ Control Module Integration
BD control module, shift lever, and digital gear display included
Gear limiting function and torque converter lock-up control
Plug-and-play sealed wiring – no cutting or splicing needed
(BD Diesel Transmissions only have warranty when running a BD Trans & Converter)
Fits the Following Applications:
2003 Dodge Ram 2500/3500 4WD 5.9L Cummins
2004 Dodge Ram 2500/3500 4WD 5.9L Cummins
For 48RE automatic transmission-equipped trucks.
BD TowMaster 48RE Transmission – Part #: 1064194F
BD Heavy-Duty Aluminum Transmission Pan
BD Auxiliary Full Flow Transmission Filter Kit
Shift Lever, Control Module, Gear Display, and Wiring Harness
Pre-installed upgraded solenoids, transducer & internal components
BD Diesel has earned its reputation by developing high-performance driveline solutions that fix the common failure points of factory components. This 48RE transmission upgrade comes dyno-tested and packed with thoughtful engineering—from roller bearings to pressure optimization and heat management. Whether you’re towing or daily driving, BD gives you the shift quality and durability 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.
We have been committed to offering all of our customers the lowest pricing throughout our website day in and day out. We value your business so much that we go a step further than our competitors. We use a third party software that proactively monitors all our competitor's websites/pricing so that we can make adjustments accordingly if needed to have the lowest prices. Thats right, no need to spend hours searching for the lowest prices, as ours will be the lowest.
As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
Unable to find satisfactory answers ?
