BD Diesel Stage 4 Transmission & Converter Package

2019–2022 Ram 2500 / 3500 6.7L Diesel

Part #: 1064294SM

Overview

The BD Diesel Stage 4 Transmission & Converter Package is a premium matched set designed specifically for the 2019–2022 Ram 2500 and 3500 equipped with the 6.7L Cummins diesel engine. This package combines a high-performance transmission with a torque converter that have been dyno tested together to ensure seamless operation, maximum power transfer, and long-term reliability. Ideal for drivers who demand superior towing capability, daily street performance, or track-ready durability, this package delivers the strength and dependability needed to handle the immense torque output of modern diesel engines.

Whether you are upgrading a stock transmission or replacing a worn unit, BD Diesel’s Stage 4 package offers a direct-fit solution engineered to meet the rigorous demands of heavy-duty diesel applications. The included heavy-duty transmission pan increases fluid capacity, helping to maintain optimal operating temperatures under extreme conditions.

Key Features

Engineered for durability and performance, the BD Diesel Stage 4 Transmission & Converter Package includes:

• Matched transmission and torque converter dyno tested as a set for optimized performance
• Heavy-duty transmission pan with increased fluid capacity for improved cooling and longevity
• Designed specifically for 2019–2022 Ram 2500 and 3500 6.7L Cummins diesel engines
• Built to handle high torque loads typical of diesel towing and performance applications
• Direct bolt-in fitment with no major modifications required
• Enhanced reliability for street, towing, and track use
• Manufactured by BD Diesel, a trusted name in diesel performance parts

Construction & Design

The transmission included in this package is built with heavy-duty internal components engineered to withstand the high torque and power output of the 6.7L Cummins diesel engine. BD Diesel incorporates robust materials and precision engineering to ensure durability and consistent performance under demanding conditions. The heavy-duty transmission pan is crafted to increase fluid capacity, which helps dissipate heat more effectively, reducing wear and extending transmission life.

Each torque converter is designed to complement the transmission’s gear ratios and clutch engagement characteristics, providing smooth power delivery and improved throttle response. The entire assembly is rigorously tested on a dynamometer to verify performance and reliability before it reaches the customer.

Installation & Fitment

This Stage 4 Transmission & Converter Package is a direct replacement for the factory transmission in 2019–2022 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. Installation requires standard transmission removal and replacement procedures with no special modifications necessary. BD Diesel recommends professional installation to ensure proper torque specifications and fluid fill levels are met for optimal performance and longevity.

What's Included

• BD Diesel Stage 4 transmission fully assembled and tested
• Matched torque converter optimized for the transmission
• Heavy-duty transmission pan with increased fluid capacity
• Installation hardware and gaskets as required

Ideal For

This transmission and converter package is ideal for Ram 2500 and 3500 owners who require a reliable, high-performance drivetrain capable of handling heavy towing loads, aggressive street driving, or demanding track conditions. It is perfect for diesel enthusiasts looking to upgrade their factory transmission for enhanced durability and smoother power delivery without compromising OEM fitment or drivability.

BD Diesel Performance designs and manufactures diesel performance parts aimed at stronger power delivery, improved reliability, and heavy-duty capability. Their lineup spans turbo and fueling upgrades, manifolds, intercoolers, and other supporting components—built for Cummins, Power Stroke, and Duramax owners who want more torque for towing, work, or competition.