
Twisted Street™ 6R140 Diesel Transmission 2011-2019 Ford Super Duty 6.7 F250 F350 F450 F550
2011-2019 Ford Super Duty 6.7L Power Stroke Diesel
F250 F350 F450 F550 Automatic Transmission
Built the Twisted Torque™ Way 💪⚙️
The Twisted Street™ 6R140 Diesel is built for daily driving, towing, work truck use, fleet vehicles, hotshot applications, and heavy-duty diesel performance for Ford Super Duty trucks equipped with the 6.7L Power Stroke Diesel engine.
Every Twisted Street™ 6R140 Diesel is completely rebuilt and updated with heavy-duty internal upgrades designed to improve durability, oil flow, towing performance, converter charge pressure, hydraulic performance, and long-term reliability.
✅ Fits 2011-2019 Ford Super Duty 6.7L Power Stroke Diesel Applications
✅ Fits F250 F350 F450 F550 Trucks
✅ Heavy Duty 6-Speed Automatic Transmission
✅ Built for Towing, Work Trucks & Daily Diesel Use
✅ Designed for Mildly Tuned & Deleted Trucks
✅ Available in 2WD PTO, 2WD Non-PTO, and 4x4 Configurations
✅ Rated for up to 550-650 HP
✅ Rated for 900-1000 lb-ft Torque
✅ Built for Heavy Towing & Diesel Work Truck Use
✅ Mild Tune & Delete Compatible
✅ Designed for Fleet & Commercial Applications
The Twisted Street™ 6R140 Diesel is designed for customers looking for a dependable heavy-duty replacement transmission capable of handling towing, oversized tires, work truck use, commercial driving, and mild tuning without sacrificing reliability.
For aggressive tuning, compounds, sled pull, racing, or extreme towing applications, please contact us about our Twisted Pro™, Twisted Punisher™, and Twisted Executioner™ 6R140 Diesel builds.
Heavy-duty upgraded clutch materials designed for improved holding power and heat resistance.
Updated for improved lubrication, converter charge pressure, and long-term durability.
Helps correct common valve body pressure loss issues that can lead to:
• Converter clutch slip
• Flare shifts
• Delayed engagement
• Pressure instability
• Inconsistent shifting
Improves shift feel, shift timing, converter lockup performance, and towing durability.
Helps improve line pressure stability and clutch apply performance.
Helps prevent common gear range and shift position issues.
Replaces brittle and heat-damaged factory wiring inside the transmission.
Helps improve shift operation and transmission monitoring.
Improves internal oil flow and helps reduce internal wear.
Complete sealing system replacement throughout the transmission.
Designed to improve shift consistency and transmission operation.
🚛 Daily Driving
🚛 Heavy Towing
🚛 Diesel Work Trucks
🚛 Fleet Trucks
🚛 Hotshot Applications
🚛 Mildly Tuned & Deleted Trucks
🚛 Commercial Use
The 6R140 Diesel came in several different configurations depending on drivetrain and truck setup.
Configurations include:
• 2WD PTO
• 2WD Non-PTO
• 4x4 PTO
• 4x4 Non-PTO
• Flange Yoke vs Slip Yoke
Please verify your setup carefully before ordering or contact us with your VIN before purchase.
The 6R140 Diesel transmission is extremely sensitive to heat, tuning, converter lockup strategy, towing load, and line pressure calibration.
Improper tuning or inadequate cooling can quickly damage transmission components.
Twisted Torque strongly recommends:
• Proper transmission tuning
• Upgraded transmission cooling
• Monitoring transmission temperatures
• Proper converter lockup strategy
• Proper tire and gear ratio setup
Improper tuning or excessive heat can lead to:
• Converter failure
• Burnt clutches
• Pressure instability
• Excessive heat buildup
• Premature transmission failure
Final vehicle tuning and cooling system condition are the responsibility of the installer and vehicle owner.
Please send:
✅ VIN
✅ 2WD or 4WD
✅ PTO or Non-PTO
✅ Tire Size
✅ Towing Use
✅ Stock, Tuned, or Deleted
✅ Power Goals
and our Gear Whisperers™ will help verify the correct setup for your truck 👊
📞 833-858-9612
📧 sales@twistedtorque.com