The BD Diesel 48RE Transmission Kit, part number 1064192F, is designed for heavy-duty performance and durability in 2003-2004 Dodge Ram 2500 and 3500 models. This comprehensive stage 4 transmission upgrade includes a heavy-duty aluminum transmission pan with additional oil capacity, a full flow auxiliary filter kit for enhanced fluid protection, and a heat dissipating pan with fins to maintain optimal operating temperatures. The kit features an upgraded governor pressure transducer that offers twice the burst pressure of stock units, ensuring reliable operation under severe towing and high-performance applications. The use of billet components such as the band lever and band strut, along with a billet high-energy Raybestos band, contributes to increased drivetrain longevity and consistent shift quality. Every transmission is rigorously tested on a dynamometer to verify performance and durability before installation.
The transmission’s internal components have been upgraded to withstand increased line pressure of 190-200 psi, with a focus on improved lubrication, cooling, and high-stress operation. The manual valve has been modified for lubrication in all positions, and the intermediate shaft features drilled lubrication holes for better oil flow. The pan is designed with heat dissipation fins and adds extra oil capacity to extend service intervals and reduce the risk of overheating. The included cooler line case saver and magnetic drain plug further enhance reliability by protecting vital components and facilitating maintenance. This transmission kit also features a new design valve body, upgraded governor solenoid, and high-quality clutch packs with increased clutch counts for OD, forward, and direct clutches, all contributing to a more robust drivetrain capable of handling demanding towing and power upgrades. Please note that use of third-party or OEM converters will invalidate the warranty.
This BD Diesel transmission upgrade delivers a combination of high-performance features and heavy-duty construction, making it ideal for fleet applications, towing, and severe-duty diesel setups. It is backed by a 36-month/150,000-mile limited warranty, providing confidence in its long-term reliability and performance.
Features:
- Heavy-duty aluminum transmission pan with increased oil capacity and heat-dissipating fins for better thermal management
- Upgraded governor pressure transducer with twice the burst pressure of stock units for enhanced reliability
- High-performance clutch packs with increased clutch counts and billet components for extended drivetrain life
- Includes full flow auxiliary filter kit and cooler line case saver for maximum fluid protection and cooling
Fitment:
Dodge Ram 2500 Laramie 2003
Dodge Ram 2500 SLT 2003 to 2004
Dodge Ram 2500 ST 2003 to 2004
Dodge Ram 3500 Laramie 2003 to 2004
Dodge Ram 3500 SLT 2003 to 2004
Dodge Ram 3500 ST 2003 to 2004





















