5.9L / 6.7L Diesel Transmission Upgrades
aFe Power Transmission Pan Raw w/ Machined Fins: Ram 2500 / 3500 13-23 6.7L Diesel
aFe
$354.00
- Unit price
- /per
aFe Pro Series Rear Differential Cover: Ram 2500 / 3500 19-26 6.7L Diesel/6.4L w/ Machined Fins
aFe
$370.00
- Unit price
- /per
aFe ShiftLogic Exhaust Brake Control Module: Dodge Ram 2500 / Ram 3500 05-07 5.9L Diesel
aFe
$410.00
- Unit price
- /per
aFe Street Series Rear Differential Cover: Fits Most Dodge/Ram 5.9L Diesel/5.7L (03-13) w/ Machined Fins
aFe
$314.00
- Unit price
- /per
aFe Street Series Rear Differential Cover: Ram 2500 / 3500 19-26 6.7L Diesel/6.4L w/ Machined Fins
aFe
$314.00
- Unit price
- /per
BD Diesel 68RFE ProForce Enhanced Stall Torque Converter: Fits Ram 2500 / 3500 2007-2024 5.9L/6.7L Diesel
BD Diesel
$1,354.95
- Unit price
- /per
ATS Diesel Stage 4 Transmission Package: Dodge Ram 2500 / Ram 3500 2003-2004 w/ T.V. Cable
ATS Diesel
$7,014.99
- Unit price
- /per
Yukon Gear Pinion Install Kit w/ Bearing Ring & Pinion Set: Ram 2500 2014-2016 5.7L/6.4L
Yukon Gear & Axle
$826.89
- Unit price
- /per
BD Diesel Diff Cover Front AA 12-9.25: Ram 2500/3500 2013-2022 6.7L/6.4L Diesel
BD Diesel
$380.95
- Unit price
- /per
BD Diesel Triple Disk Enhanced Stall Converter: Fits Dodge/Ram 2007-2024 Diesel
BD Diesel
$1,987.95
- Unit price
- /per
Wehrli Gloss Black Rear Diff Cover: Fits Most Dodge/Ram 6.7L Diesel/5.9L Diesel (03-18)
Wehrli
Regular price
$389.00
$377.33
Sale
- Unit price
- /per
Wehrli Rear Differential Cover (REAR): Ram 2500 / 3500 19-24 6.7L Diesel/6.4L w/ Grey
Wehrli
Regular price
$414.00
$401.58
Sale
- Unit price
- /per
Yukon Gear Spin Free Locking Hub Conversion Kit: Ram 2500/3500 2012-2018 5.7L/6.7L
Yukon Gear & Axle
$3,412.89
- Unit price
- /per
BD Diesel Front & Rear Diff Cover Pack (F&R): Dodge Ram 2500/3500 2003-2013 5.7L/5.9L/6.7L Diesel
BD Diesel
$617.95
- Unit price
- /per
BD Diesel 68RFE Transmission & Converter Package: Fits Dodge Ram 2007-2018 5.9L/6.7L Diesel
BD Diesel
$8,594.95
- Unit price
- /per
BD Diesel Diff Cover w/ RCS: Ram 2500 / 3500 2013-2018 5.7L / 6.7L / 6.4L 392
BD Diesel
$358.95
- Unit price
- /per
BD Diesel Valve Body w/ Solenoid: Fits Dodge Ram 2007-2010 5.9L/6.7L Diesel
BD Diesel
$1,265.95
- Unit price
- /per
Yukon Gear LSD Rear Diff 11.5in (REAR): Ram 2500/3500 2019-2024 6.4L/6.7L
Yukon Gear & Axle
$951.89
- Unit price
- /per
BD Diesel Towmaster Transmission & Converter Package AISIN AS69RC: Ram 3500 2013-2018 6.7L Diesel
BD Diesel
$8,500.00
- Unit price
- /per
BD Diesel TrackMaster 68RFE Transmission & Converter (4WD): Dodge Ram 2500/3500 2007-2018 6.7L Diesel
BD Diesel
$9,844.95
- Unit price
- /per
BD Diesel TrackMaster 68RFE Transmission & Converter Package: Ram 2500 / 3500 2019-2024 6.7L Diesel
BD Diesel
$9,844.95
- Unit price
- /per
BD Diesel Transmission Torq Force Converter Package: Dodge Ram 2500/3500 2007-2018 5.9L/6.7L Diesel
BD Diesel
$6,994.95
- Unit price
- /per
BD Diesel Trackmaster 68RFE Transmission & Converter Package: Fits Dodge Ram 2007-2018 5.9L/6.7L Diesel 2WD
BD Diesel
$9,844.95
- Unit price
- /per
BD Diesel Roadmaster Transmission & Pro Force Converter: Fits Dodge Ram 2007-2018 5.7L/6.4L/6.7L Diesel
BD Diesel
$5,894.95
- Unit price
- /per
BD Diesel Stage 4 Master Rebuild Trans Kit: Dodge Ram 2500 / 3500 2007-2018 5.9L / 6.7L Diesel
BD Diesel
$1,562.95
- Unit price
- /per
Yukon Gear & Axle Hardcore Diff Cover: Fits Dodge Ram 2003-2024 5.7L/6.4L/6.7L Diesel
Yukon Gear & Axle
$282.89
- Unit price
- /per
BD Diesel Roadmaster Transmission & ProForce Converter: Ram 2500 / 3500 2019-2024 6.7L Diesel
BD Diesel
$5,894.95
- Unit price
- /per
aFe Power Transmission Pan: Dodge Ram 2500 / Ram 3500 94-07 5.9L Diesel w/ Black Machined Fins
aFe
$382.00
- Unit price
- /per
BD Diesel TowMaster Transmission & Converter Package: Ram 2500 / 3500 2019-2024 6.7L Diesel
BD Diesel
$6,994.95
- Unit price
- /per
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Durable Transmission Upgrades for 5.9L Magnum and 6.7L Cummins Diesel Engines
The 5.9L Magnum and 6.7L Cummins diesel engines are built to deliver exceptional torque and towing strength in Ram trucks. These transmissions face intense stress from heavy loads and high torque output, making specialized upgrades essential for maintaining smooth shifting and long-term drivetrain reliability.
How transmission upgrades enhance torque handling on 5.9L and 6.7L diesels
Both the 5.9L Magnum and 6.7L Cummins engines generate substantial torque that can overwhelm stock transmission components over time. Upgrading with heavy-duty clutches, reinforced gears, and improved valve bodies helps these transmissions withstand increased torque loads while reducing wear and heat buildup.
- Strengthened internal components resist clutch slippage and gear failure
- Improved hydraulic circuits enhance shift firmness and response
- Upgraded cooling solutions prevent overheating under heavy towing
- Compatibility tailored to 5.9L Magnum and 6.7L Cummins transmissions
Key considerations when selecting transmission upgrades for diesel trucks
Choosing the right transmission upgrade depends on your truck’s usage, whether heavy towing, off-road hauling, or performance driving. It’s important to match upgrades to your engine’s torque curve and intended load to ensure reliable operation without sacrificing drivability or shift quality.
Shop 5.9L and 6.7L diesel transmission upgrades at FastHemis
FastHemis offers a range of transmission upgrade components designed specifically for the 5.9L Magnum and 6.7L Cummins diesel platforms. Enhance your Ram truck’s towing capability and drivetrain durability with parts engineered for these torque-heavy engines. Browse our collection to find the right transmission solutions for your diesel build.