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Ford Super Duty 6R140 TorqShift

6R140 Transmission for Sale for Ford Super Duty 250/350+ 6.7L PowerStroke/6.2L Boss

Quality by Design. Monster by Nature.

The Ford 6R140 transmission is used in Super Duty trucks that work hard, tow heavy, and often see higher torque than a stock rebuild was designed to handle. Choose from RoadReady, StreetMonster, SportMonster, and TrackMonster builds depending on your power level, towing needs, tuning, tire size, and how the truck is used.

Since 2003 20+ years building transmissions
Built in the USA In-house custom parts & dyno tested
Up to 6 Year Warranty Unlimited miles on select builds
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RoadReady Ford 6R140 transmission and torque converter
StatusIn Stock
Starting at$4,499
Best for stock replacement

RoadReady 6R140

Power LevelStock
  • OEM-style remanufactured 6R140 replacement for stock trucks
  • Great for daily drivers, work trucks, and fleet replacement
  • Refreshed clutches, seals, bushings, and wear components
  • Matched torque converter included with complete unit
  • Warranty: 3 Year Unlimited Miles
Shop RoadReady
TrackMonster Ford 6R140 transmission and torque converter
StatusIn Stock
Starting at$8,524.95
Best for high HP builds

TrackMonster 6R140

Power Level700+ HP
  • Built for aggressive tuned trucks and high horsepower diesel use
  • Maximum clutch capacity and reinforced internal support
  • Billet multi-disc converter for serious holding power
  • Performance-focused shift feel for competition-style use
  • Warranty: 1 Year Unlimited Miles
Shop TrackMonster

Not sure which 6R140 build is right for your truck?

Tire size, tuning, towing weight, axle ratio, and how the truck is used all matter. Call our team and we will help match the right build before you order.

☎ Call 800-708-0087 Product specialists available during business hours
Compare Builds

Which Ford 6R140 transmission should you choose?

The right 6R140 depends on whether the truck is stock, towing heavy, tuned, deleted, running larger tires, or being built for serious horsepower.

Stock Replacement

RoadReady

Best for stock Super Duty trucks that need a dependable replacement without performance-focused changes.

  • Stock power level
  • 3 year warranty
  • Daily and fleet use
  • Matched converter included
Most Popular

StreetMonster

Best for towing, hauling, work trucks, and mild upgrades where a stock replacement may not be enough.

  • 100 HP over stock
  • 3 year warranty
  • Better clutch capacity
  • Improved converter lockup
Heavy Tow

SportMonster

Best for tuned 6.7L Power Stroke trucks, heavier towing, larger tires, and hard-working diesel applications.

  • 600 HP rating
  • 6 year warranty
  • High-capacity friction package
  • Stronger lockup support
High Horsepower

TrackMonster

Best for aggressive tuning, competition use, and trucks that need maximum holding power.

  • 700+ HP rating
  • 1 year warranty
  • Reinforced internal support
  • Performance converter strategy
Common 6R140 Problems

Why Ford 6R140 transmissions fail

The 6R140 is a strong platform, but heat, towing weight, converter slip, tuning, and added torque can expose weak points over time.

Heat

Overheating while towing

Heavy trailers, high EGTs, larger tires, and added power can increase transmission temperature. Heat breaks down fluid and accelerates clutch wear.

Converter

Torque converter slip

Converter slip creates heat and can cause poor lockup feel, shudder, or reduced holding power under load.

Clutches

Clutch wear under load

Towing, tuning, and repeated high-load shifts can wear clutch packs faster than normal daily driving.

Hydraulics

Valve body and pressure issues

Hydraulic control is critical in a 6R140. Pressure loss or valve body wear can cause slipping, harsh shifts, flare, or inconsistent engagement.

Tuning

Tuned diesel torque

Even a mild tune can add enough torque to push a stock replacement beyond its comfort zone, especially when towing.

Monster Solution

Build it for how the truck is used

That is why Monster offers four build levels. A stock truck, tow rig, tuned diesel, and competition build should not all use the same transmission.

Fitment Guide

Ford 6R140 transmission applications

The 6R140 TorqShift is most commonly found in 2011-2019 Ford Super Duty trucks. Always confirm fitment by year, model, engine, drivetrain, and VIN before ordering.

Common vehicles

Ford F250, F350, F450, and F550 Super Duty trucks equipped with the 6R140 TorqShift automatic transmission.

Common engines

Most commonly paired with the 6.7L Power Stroke diesel, with select 6.2L gas Super Duty applications also using the 6R140.

Before ordering

Have your VIN, 2WD or 4WD configuration, engine, tire size, tuning status, and towing use ready for the best match.

Vehicle Engine Common Years Use Case
Ford F250 Super Duty 6.7L Power Stroke Diesel 2011-2019 Daily, towing, work truck, tuned diesel
Ford F350 Super Duty 6.7L Power Stroke Diesel 2011-2019 Heavy towing, fleet, hot shot, work truck
Ford F450 Super Duty 6.7L Power Stroke Diesel 2011-2019 Heavy-duty towing and commercial use
Ford F550 Super Duty 6.7L Power Stroke Diesel 2011-2019 Commercial, chassis cab, severe-duty use
Select Ford Super Duty 6.2L Gas Select applications Stock replacement and work truck use
Fitment note: Ford Super Duty fitment can vary by VIN, drivetrain, engine, calibration, and application. If you are unsure, call 800-708-0087 before ordering.

Ford 6R140 buying guide

A 6R140 transmission should be selected around the truck, not just the year range. A stock replacement may work well for a factory truck, but towing weight, larger tires, aggressive tuning, and converter heat can quickly change what build level makes sense.

When RoadReady makes sense

Choose RoadReady when the truck is stock, used mainly for daily driving or light work, and you want a dependable remanufactured replacement with factory-style behavior.

When StreetMonster makes sense

Choose StreetMonster when the truck tows, hauls, works regularly, or has mild upgrades. It is the best middle-ground build for many Super Duty owners.

When SportMonster makes sense

Choose SportMonster for tuned 6.7L Power Stroke trucks, heavy towing, hot shot use, larger tires, and customers who want the strongest warranty coverage available on this page.

When TrackMonster makes sense

Choose TrackMonster for aggressive power levels, competition-style use, and builds where maximum holding power matters more than factory-style shift comfort.

What to replace during installation

  • Flush or replace cooler and lines before startup
  • Use the correct fluid and fill procedure
  • Perform adaptive relearn and required programming steps
  • Check converter seating before installation
  • Verify transmission temperature after road test
Installation Checklist

Recommended items for a cleaner 6R140 install

A transmission replacement is only as good as the installation around it. These steps help protect the new unit from old debris, heat, and setup issues.

Cooler & Line Service

Flush or replace contaminated cooling components to keep debris out of the new transmission.

Required Step
Correct Fluid

Use the correct Ford-spec fluid and follow the proper fill and temperature check procedure.

Included Fluid
Programming & Relearn

Follow the required adaptive relearn and calibration process after installation.

Important
Converter Seating

Confirm the torque converter is fully seated before installation to prevent pump damage.

Installer Check
6R140 FAQ

Ford 6R140 transmission questions

Common questions about price, fitment, towing, tuning, converter options, installation, and warranty coverage.

What vehicles use the Ford 6R140 transmission?
The 6R140 TorqShift is commonly used in 2011-2019 Ford Super Duty trucks, including F250, F350, F450, and F550 models. It is most commonly paired with the 6.7L Power Stroke diesel and select 6.2L gas applications.
Which 6R140 transmission build should I buy?
RoadReady is best for stock replacement. StreetMonster is best for towing and daily work trucks. SportMonster is best for heavy towing and tuned diesel trucks. TrackMonster is best for high horsepower and competition-style builds.
Is the torque converter included?
Yes. Each complete 6R140 transmission includes a matched torque converter selected around the build level and intended use.
Can a 6R140 handle a tuned 6.7L Power Stroke?
A stock-style unit may not be the best choice for a tuned diesel truck. For tuned 6.7L Power Stroke applications, SportMonster or TrackMonster is usually a better match depending on horsepower, towing weight, and how aggressive the tune is.
What warranty comes with each 6R140 build?
RoadReady includes a 3 Year Unlimited Mile Warranty. StreetMonster includes a 3 Year Unlimited Mile Warranty. SportMonster includes a 6 Year Unlimited Mile Warranty. TrackMonster includes a 1 Year Unlimited Mile Warranty.
Do I need programming after installing a 6R140?
Yes. Follow the proper Ford programming, adaptive relearn, and road test process after installation. Programming and relearn are important for shift quality, pressure control, and long-term reliability.
What causes 6R140 transmission failure?
Common causes include heat, converter slip, clutch wear, valve body or hydraulic control issues, tuning, towing overload, contaminated cooler lines, and poor installation practices.
Is the 6R140 good for towing?
Yes, the 6R140 is a strong transmission platform for towing when matched with the right build level. For frequent heavy towing, StreetMonster or SportMonster is typically a better choice than a stock-style replacement.
Does Monster include transmission fluid?
Yes. Complete Monster 6R140 transmission packages include transmission fluid.
Should I replace or flush the cooler lines?
Yes. Old cooler lines and coolers can hold debris from the failed transmission. Flushing or replacing cooler components helps protect the new transmission from contamination.

Horsepower ratings are general build-level guidance. Vehicle weight, tire size, axle ratio, tuning, towing habits, fluid temperature, and installation quality all affect real-world capacity.

☎ Need help choosing? Call 800-708-0087