5.9L / 6.7L Diesel Transmission Upgrades
PPE Transmission Fluid Thermal Bypass Valve Billet Aluminum: Ram 2500 / 3500 2019-2024 6.4L / 6.7L Diesel
PPE
$79.99
- Unit price
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PPE HD Cast Aluminum Rear Diff Cover: Dodge Ram 1500 1994-2025 9.25"-12-Bolt
PPE
from $299.99
- Unit price
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PPE HD Cast Aluminum Transmission Pan w/ Deep Spin-On Filter: Fits Dodge/Ram 2007-2024 6.7L Cummins 68RFE
PPE
from $339.99
- Unit price
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Yukon Gear & Axle Hardcore Nodular Iron Rear Diff Cover: Fits Most Dodge/Ram (92-19) - Black
Yukon Gear & Axle
$248.89
- Unit price
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aFe Power Transmission Pan: Dodge Ram 2500 / Ram 3500 94-07 5.9L Diesel w/ Black Machined Fins
aFe
$382.00
- Unit price
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aFe Pro Series Front Diff Cover w/ Machined Fins: Ram 2500 / 3500 13-23 6.7L Diesel/6.4L/5.7L
aFe
$354.00
- Unit price
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ATS Diesel Torque Converter Lockup Controller: Dodge Ram 2500 / Ram 3500 1994-1998
ATS Diesel
$614.99
- Unit price
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ATS Diesel Torque Converter Lockup Controller Kit: Dodge Ram 2500 / Ram 3500 2004-2007
ATS Diesel
$614.99
- Unit price
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ARB Airlocker Dana 60 32 Spl S/N: Dodge Ram 2500/Ram 3500 94-02 8.0L/5.9L Diesel/5.7L/5.2L
ARB
$1,399.95
- Unit price
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ATS Diesel Valve Body Towing Edition: Dodge Ram 2500 / Ram 3500 2003-2004
ATS Diesel
$704.99
- Unit price
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ATS Diesel Racing Edition 48RE Valve Body w/ TV Cable: Dodge Ram 2500 / Ram 3500 2003-2004
ATS Diesel
$699.99
- Unit price
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ATS Diesel Valve Body Towing Edition: Dodge Ram 2500 / Ram 3500 1994-1995
ATS Diesel
$704.99
- Unit price
- /per
ATS Diesel Valve Body Towing Edition: Dodge Ram 2500 / Ram 3500 1996-1998
ATS Diesel
$704.99
- Unit price
- /per
ATS Diesel Valve Body Towing Edition: Dodge Ram 2500 / Ram 3500 1999-2002
ATS Diesel
$704.99
- Unit price
- /per
ATS Diesel Racing Edition 48RE Valve Body: Dodge Ram 2500 / Ram 3500 2004-2010
ATS Diesel
$699.99
- Unit price
- /per
ATS Diesel 48RE Towing Edition Valve Body: Dodge Ram 2500 / Ram 3500 2004-2010
ATS Diesel
$704.99
- Unit price
- /per
ATS Diesel Aluminum +5 Qt Transmission Pan: Ram 2500 11-12 6.7L Diesel/5.7L, Ram 3500 11-12 5.7L Hemi
ATS Diesel
$399.99
- Unit price
- /per
ATS Diesel Billet Input Shaft: Ram 2500 11-12 6.7L Diesel/5.7L, Ram 3500 11-12 5.7L Hemi
ATS Diesel
$819.99
- Unit price
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ATS Diesel Billet Input Shaft: Dodge Ram 2500 / Ram 3500 1994-2010
ATS Diesel
$829.99
- Unit price
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ATS Diesel Valve Body Towing Edition: Dodge Ram 2500 / Ram 3500 1998-1999
ATS Diesel
$704.99
- Unit price
- /per
aFe Power Street Series Front Differential Cover Raw w/ Machined Fins 13-18 RAM V8 5.7/6.4L
aFe
$298.00
- Unit price
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Yukon Gear & Axle Hi-Perf Ring & Pinion Gear Set 9.25" 4.88 Ratio: Fits Most Dodge 8.0L/5.9L Diesel/5.7L/5.2L/3.9L/3.7L (94-10)
Yukon Gear & Axle
$565.89
- Unit price
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Eaton Rear Master Install Kit: Fits Most Chrysler/Dodge (92-10)
Eaton
Regular price
$186.03
$159.99
14% off
- Unit price
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Moog Front Hub Assembly: Fits Most Dodge 6.7L Diesel/5.9L Diesel/5.7L/3.7L (06-08)
Moog
$430.55
- Unit price
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Fabtech Auto Transmission Mount Bracket: Fits Most Dodge/Ram 6.7L Diesel/5.9L Diesel (07-13)
Fabtech
$125.51
- Unit price
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Fabtech Transmission Mount Bracket: Dodge Ram 2500 / Ram 3500 06-07 5.9L Diesel
Fabtech
$125.51
- Unit price
- /per
aFe Pro Series Rear Differential Cover: Fits Most Dodge/Ram (94-22) w/ Machined Fins
aFe
$370.00
- Unit price
- /per
Wehrli Grey Rear Diff Cover (REAR): Fits Most Dodge/Ram 6.7L Diesel/5.9L Diesel (03-18)
Wehrli
Regular price
$414.00
$401.58
3% off
- 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
Revolution Gear & Axle 4.88 Ratio Gear Package: Dodge Ram (94-01)
Revolution Gear & Axle
$849.99
- Unit price
- /per
ATS Diesel Billet Intermediate Shaft: Dodge Ram 2500 / Ram 3500 1994-2010
ATS Diesel
$919.99
- Unit price
- /per
ATS Diesel Torque Converter Lockup Controller Kit: Dodge Ram 2500 / Ram 3500 2004-2007
ATS Diesel
$614.99
- Unit price
- /per
ATS Diesel CoPilot Transmission Controller: Dodge Ram 2500 / Ram 3500 1998-2002
ATS Diesel
$614.99
- Unit price
- /per
ATS Diesel Torque Converter Lockup Controller Kit: Dodge Ram 2500 / Ram 3500 2003-2007
ATS Diesel
$614.99
- Unit price
- /per
ATS Diesel CoPilot Torque Converter Lockup Controller Kit: Dodge Ram 2500 / Ram 3500 2003-2004
ATS Diesel
$614.99
- Unit price
- /per
ATS Diesel Master Transmission Overhaul Kit: Dodge Ram 2500 / Ram 3500 96-02
ATS Diesel
$849.99
- Unit price
- /per
ATS Diesel Master Transmission Overhaul Kit: Dodge Ram 2500 / Ram 3500 2004-2010
ATS Diesel
$849.99
- 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.