The 6R140 is standard behind Ford's 6.7L Power Stroke turbodiesel and the only available transmission - a manual transmission option has never been offered with this engine. The transmission features a patented dual media transmission filter that allows for relatively long service intervals. The gear spread provides a favorably low 1st gear to maximize available torque at low speeds and a relatively high overdrive ratio to minimize engine rpm for greater fuel economy at cruising speeds.
6R140 TorqShift Ratios
| 1st | 2nd | 3rd | 4th | 5th | 6th | R |
| 3.974 : 1 | 2.318 : 1 | 1.516 : 1 | 1.149 : 1 | 0.858 : 1 | 0.674 : 1 | 3.12 : 1 |
6R140 TorqShift Specs
| Transmission | Ford 6R140 TorqShift |
| Type | 6 speed automatic double overdrive transmission |
| Production Plant | Ford Motor Company Sharonville Transmission Plant, Sharonville, Ohio |
| Predecessor | Ford 5R110W TorqShift |
| Model Years/Applications | 2011 - Present (6.7L Power Stroke) |
| Case Material | Aluminum |
| Max Input Torque | 1,400 lb-ft* |
| Weight | ~ 325 lbs w/out fluid, ~350 lbs w/ fluid |
| ATF Type/Spec | MERCON LV automatic transmission fluid |
| Transmission Filter P/N | Motorcraft FT187 |
| Service Intervals | Replace transmission fluid and filter every 150,000 miles |
| Features | • Manual shift mode • Low speed torque converter lockup • High capacity dual media filtration system facilitates lengthy service intervals • Optional live PTO grants both mobile and stationary PTO operation • Sinter brazed Ravigneaux planetary gearsets |
*The 6R140 features a max transmission input of 1,400 lb-ft, accounting for torque multiplication through the torque converter; the transmission is not rated for a maximum 1,400 lb-ft engine torque.