BD Diesel Stage 4 Transmission Kit w/ ProForce Converter

2019–2024 Ram 2500 / 3500 6.7L Diesel

Part #: 1064294SS

Overview

The BD Diesel Stage 4 Transmission Kit with ProForce Converter is a premium matched transmission and torque converter package designed specifically for the 2019–2024 Ram 2500 and 3500 equipped with the 6.7L Cummins diesel engine. Engineered for enthusiasts who demand maximum durability and performance, this kit is ideal for heavy towing, daily driving, and even track use. Each transmission and converter pair is dyno tested together to ensure seamless compatibility, delivering reliable power transfer and enhanced drivability under the most demanding conditions.

BD Diesel’s commitment to quality and performance is evident in every component, making this kit a trusted upgrade for Ram owners looking to maximize their diesel’s torque capacity without sacrificing reliability.

Key Features

This Stage 4 Transmission Kit combines advanced engineering and robust components to handle the increased power and torque of modified 6.7L Cummins engines. Key features include:

• Matched transmission and ProForce torque converter dyno tested for optimal performance and reliability
• BD Diesel Heavy Duty transmission pan with increased fluid capacity for improved cooling and longevity
• Designed specifically for 2019–2024 Ram 2500 and 3500 6.7L diesel trucks
• Enhanced torque handling capability to support high-performance diesel builds
• Durable construction to withstand heavy towing, off-road, and street driving demands
• Improved shift quality and power transfer for smoother acceleration and load handling
• Direct fit replacement with no major modifications required
• Backed by BD Diesel’s reputation for quality and customer support

Construction & Design

The transmission included in this kit features BD Diesel’s proprietary heavy duty pan, which increases fluid capacity to help maintain optimal transmission temperatures during extended towing or high-load operation. The torque converter is engineered to complement the transmission’s internal components, ensuring efficient power transfer and minimizing slippage. All parts are manufactured with high-grade materials and precision engineering to meet the rigorous demands of modern diesel performance applications.

BD Diesel’s design philosophy focuses on durability and reliability, ensuring that each transmission kit can handle the increased torque output of modified Cummins engines without compromising service life.

Installation & Fitment

This Stage 4 Transmission Kit is a direct fit for 2019–2024 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. Installation typically requires standard transmission removal and replacement procedures with no major modifications necessary. BD Diesel provides detailed instructions and support to facilitate a smooth installation process. This kit is suitable for both professional installers and experienced DIY enthusiasts.

What's Included

• BD Diesel Stage 4 Transmission
• ProForce Torque Converter matched and dyno tested with the transmission
• Heavy Duty transmission fluid pan with increased capacity
• Installation hardware and gaskets
• Detailed installation instructions

Ideal For

This transmission kit is ideal for Ram 2500 and 3500 owners who have upgraded their 6.7L Cummins diesel engines for increased power and torque and require a transmission capable of handling those demands. It is perfect for heavy towing, hauling, off-road use, and performance street driving where reliability and durability are critical. Whether you are a diesel enthusiast, a professional contractor, or a weekend warrior, this BD Diesel Stage 4 Transmission Kit delivers the strength and performance your truck needs.

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.