BD Diesel 03-04 Dodge 48RE Transmission & Converter Roadmaster Package (4WD)

BD Diesel 03-04 Dodge 48RE Transmission & Converter Roadmaster Package (4WD)

Name: BD Diesel 03-04 Dodge 48RE Transmission & Converter Roadmaster Package (4WD) - Wyld Performance
SKU: bdd1064144SS
Price: 4629.76 USD
Availability: InStock

SKU: bdd1064144SS

$4,629.76

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Category: Transmissions

BD Diesel Roadmaster 48RE Transmission & Torque Converter Package | 2003–2004 Dodge Ram 5.9L Cummins 4WD

If you use your 5.9L Cummins diesel for heavy towing, daily commuting, or highway hauling, you already know the stock 48RE transmission is a major weak link. The factory transmission suffers from weak line pressure, slippage, and a torque converter that can't handle increased diesel torque. The BD Diesel Roadmaster Package (Part Number: 1064144SS) completely overhaul this issue. It is a fully upgraded, heavy-duty replacement transmission setup built specifically for 4WD trucks, paired with a matching heavy-duty torque converter to deliver reliable power transfer without slipping.The Roadmaster package is engineered to handle stock to moderate horsepower levels while fixing all the factory flaws. BD Diesel upgrades the internal friction plates, improves the fluid oil flow dynamics, and installs a refined valve body that bumps up internal line pressure. This means you get crisp, firm shifts and much lower operating temperatures under load, keeping your truck on the road instead of stuck on a service lift.

Features and Benefits

Upgraded Heavy-Duty Torque Converter: Includes a specially matched BD torque converter built with a heavy-duty cover and premium friction linings to eliminate slippage and transfer maximum Cummins torque to the wheels.
Increased Fluid Line Pressure: The modified valve body optimizes fluid routing and increases hydraulic line pressure, ensuring the internal clutches grab tightly and shifting stays firm under load.
Enhanced Clutch Packs: Built using premium, high-thermal friction materials and extra clutch plates in critical areas to prevent common burnt clutch failures when towing heavy trailers.
Improved Internal Lubrication: Redesigned oil circuits keep vital bearings and gear sets constantly lubricated, lowering overall transmission temperatures and extending the lifespan of the unit.
Strict Dyno Testing: Every single 48RE assembly is put through full simulated dyno testing by BD Diesel before boxing, making sure the shifts, pressures, and seals work perfectly right out of the box.

Vehicle Fitment

This package is designed specifically for four-wheel-drive (4WD) Dodge trucks running the 4-speed 48RE automatic transmission:

Year	Make	Model	Drive & Engine Notes
2003–2004	Dodge	Ram 2500	4WD Only / 5.9L Cummins Turbo Diesel
2003–2004	Dodge	Ram 3500	4WD Only / 5.9L Cummins Turbo Diesel

Note: Please confirm your build date and four-wheel-drive configuration before purchase to ensure exact drivetrain alignment.

Technical Specifications

Part Number: 1064144SS
Transmission Model: 48RE (4-Speed Automatic)
Drivetrain Layout: 4WD (Four-Wheel Drive)
Package Contents: Heavy-duty transmission assembly and matching torque converter
Power Rating: Engineered for stock to moderate street/towing power levels

Frequently Asked Questions (FAQ)

Is this transmission setup meant for high-horsepower competition drag racing?

No. The Roadmaster package is specifically engineered for working trucks, daily drivers, and towing applications running stock to moderate power upgrades. If you are building a high-horsepower race truck with a massive compound turbo setup, you should look into BD Diesel's full competition series transmissions instead.

Does this package include a deep oil pan, or do I reuse my stock pan?

The Roadmaster series transmission comes fully assembled with a high-quality oil pan configuration that is ready to bolt into place. For maximum cooling capacity and easier servicing down the road, we highly recommend adding a BD Diesel heavy-duty aluminum deep transmission pan at the time of installation.

Do I need to flush my transmission cooler lines before installing this new unit?

Yes, absolutely. If your previous transmission failed, it likely sent metal shavings and burnt clutch material straight into your factory cooling lines and heat exchanger. You must completely flush out the cooler lines and radiator core before firing up the new transmission, or that old debris will flow right in and ruin your new assembly.

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