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5.9L / 6.7L Diesel Transmission Upgrades

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194 Results

ATS Diesel Billet Flexplate: Dodge Ram 2500 / Ram 3500 1994-2007
ATS Diesel Billet Flexplate: Dodge Ram 2500 / Ram 3500 1994-2007
usa
ATS Diesel Signal Conditioner: Dodge Ram 2500 / Ram 3500 1998-2002
ATS Diesel Signal Conditioner: Dodge Ram 2500 / Ram 3500 1998-2002
usa
ARB Airlocker 33 Spl S/N: Dodge Ram 2500 (2003-2010) / Ram 2500 (2011-2019) / Dodge Ram 3500 (2003-2010) / Ram 3500 (2011-2019)
ARB Airlocker 33 Spl S/N: Dodge Ram 2500 (2003-2010) / Ram 2500 (2011-2019) / Dodge Ram 3500 (2003-2010) / Ram 3500 (2011-2019)
ARB Airlocker AAM 925/950 33 Spline: Dodge Ram 2500 (2003-2010) / Ram 2500 / Ram 3500 (2011-2020)
ARB Airlocker AAM 925/950 33 Spline: Dodge Ram 2500 (2003-2010) / Ram 2500 / Ram 3500 (2011-2020)
PPE Heavy-Duty Cast Aluminum Front Differential Cover (FRONT): Dodge Ram (14-24)
PPE Heavy-Duty Cast Aluminum Front Differential Cover (FRONT): Dodge Ram (14-24)
usa
PPE Release Valve Shim Kit: Ram (08-09)
usa
Exedy Stage 1 Organic Clutch: Dodge Ram 2500 / Ram 3500 2005 - 2010
Exedy Stage 1 Organic Clutch: Dodge Ram 2500 / Ram 3500 2005 - 2010

Exedy Stage 1 Organic Clutch: Dodge Ram 2500 / Ram 3500 05-10 6.7L Diesel/5.9L Diesel

Exedy

Regular price $1,339.45 $1,138.50 Sale

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Exedy Stage 1 Organic Clutch: Dodge Ram 2500 / Ram 3500 2001 - 2004
Exedy Stage 1 Organic Clutch: Dodge Ram 2500 / Ram 3500 2001 - 2004

Exedy Stage 1 Organic Clutch: Dodge Ram 2500 / Ram 3500 01-04 5.9L Diesel

Exedy

Regular price $749.23 $636.83 Sale

Unit price
per 

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.

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