When it comes to heavy-duty trucks, the Ford F-350 stands out as a true workhorse. At the heart of this powerful machine lies its robust transmission system. The Ford F-350 Super Duty has used six different transmissions across its 35 plus year production history, and choosing the right replacement depends on your year, engine, and trim level. This page is your complete guide to the Ford F-350 transmission family, including the E4OD, 4R100, 5R110W TorqShift, 6R140 TorqShift, and 10R140 automatic transmissions, plus the ZF S6-650 6-speed manual transmission offered from 1999 through 2010. Understanding the Ford F-350 Transmission Family The F-350 Super Duty transmission lineage tells the story of Ford's evolution in heavy-duty truck engineering. Each transmission represents a generational improvement in capacity, fuel economy, shift quality, and integration with the engine.
The E4OD (Electronically controlled 4-speed Overdrive) was Ford's first electronic heavy-duty automatic transmission. Based on the legendary C6 3-speed automatic that preceded it, the E4OD added overdrive and electronic control: � 4 speeds with overdrive (0.71:1 4th gear)
� Used behind 7.3 Powerstroke (1994.5-1998), 7.5L (460) V8, and gas Triton applications � Known issues: factory torque converter weakness, valve body wear in heavy-duty diesel applications, OD planetary failure � Highly modifiable with aftermarket valve body kits, billet shafts, and triple-disc converters
The 4R100 was the upgraded successor to the E4OD with strengthened internals and revised programming for the 7.3 Powerstroke HPCR: � 4 speeds with overdrive (same gearing as E4OD)
� Stronger output shaft, revised valve body, improved torque converter � Used behind 7.3 Powerstroke HPCR (1998-2003), V10, 5.4 Triton � Very popular among aftermarket builders for heavy-duty diesel applications Is the 4R100 a good transmission? Yes, with caveats. Stock OEM is reliable for normal use but the factory torque converter and valve body benefit significantly from aftermarket upgrades for heavy towing or modified Powerstroke applications. Companies like ATS, BD Diesel, and Sun Coast offer bulletproof 4R100 builds. 5R110W TorqShift 5-Speed Automatic (2003 to 2010) The 5R110W introduced the TorqShift branding and a 5th gear for the Super Duty platform: � 5 speeds (with optional "PTO 6th" position); the W in 5R110W denotes the wide gear ratio spread
� Paired with 6.0 Powerstroke (2003-2007), 6.4 Powerstroke (2008-2010), 5.4 Triton, and 6.8 V10 � Two-mode operation; Tow/Haul mode locks the converter and uses aggressive shift logic � Known issue: thermistor failure in solenoid pack can cause transmission to default to limp mode (failsafe) 6R140 TorqShift 6-Speed Automatic (2011 to 2019) The 6R140 was a clean-sheet design introduced alongside Ford's in-house 6.7L Powerstroke:
� ~1,100 lb-ft torque rating, significant capacity increase over predecessors � The ONLY transmission available with 6.7 Powerstroke 2011-2019 (no manual option) � Also paired with 6.2L Boss V8 gas engine � TorqShift logic with Tow/Haul mode and "Live Drive" PTO option � One of the most reliable Ford automatics ever produced
The 10R140 is the most recent Ford F-350 transmission, introduced for 2020: � 10 speeds, dramatic increase from 6-speed predecessor � Co-developed by Ford and GM (closely related to GM's 10L1000 used in Duramax-Allison HD trucks)
� Paired with 6.7 Powerstroke HO (475 HP / 1,050 lb-ft factory) and 7.3L Godzilla V8 gas � Modern electronics with adaptive shift logic and Tow/Haul Plus mode
For owners preferring manual transmission, the ZF S6-650 (commonly "ZF6") was offered from 1999 through 2010. Designed by ZF Friedrichshafen of Germany: � 6 speeds with deep 5.79:1 first gear for heavy-load launches � 0.72:1 overdrive sixth gear for highway efficiency � Up to 750 lb-ft torque rating in HD variants � 200 lbs dry weight, aluminum case construction � Paired with 7.3, 6.0, 6.4 Powerstroke and 5.4 Triton / 6.8 V10 gas engines � The final Ford Super Duty manual transmission; Ford eliminated the manual option after 2010 This specific listing covers the ZF S6-650 6-speed manual.
Match your truck year and engine to identify the correct transmission: � 1989 to 1998 F-350 with 7.3 Powerstroke or 7.5 V8 (automatic): E4OD � 1995 to 1998 F-350 with 7.3 Powerstroke (manual): ZF S5-47 5-speed � 1998 to 2003 F-350 with 7.3 Powerstroke HPCR or V10 (automatic): 4R100 � 1999 to 2003 F-350 (manual): ZF S6-650 � 2003 to 2007 F-350 with 6.0 Powerstroke or 5.4 Triton (automatic): 5R110W TorqShift � 2008 to 2010 F-350 with 6.4 Powerstroke or 5.4 Triton (automatic): 5R110W TorqShift � 2003 to 2010 F-350 (manual): ZF S6-650 � 2011 to 2019 F-350 with 6.7 Powerstroke or 6.2 Boss V8: 6R140 TorqShift automatic ONLY � 2020 to current F-350 with 6.7 Powerstroke HO or 7.3 Godzilla V8: 10R140 10-speed automatic ONLY Important Compatibility Note: F-350 Transmissions are FORD-ONLY A common point of confusion: Ford F-350 transmissions do NOT factory-fit GM (Silverado/Sierra) or Dodge/Ram HD trucks. Three different brands use three completely different transmission families: � Ford F-350: E4OD / 4R100 / 5R110W / 6R140 / 10R140 automatic, or ZF S6-650 manual � GM Silverado HD / GMC Sierra HD: Allison 1000 / 2000 series automatic (paired with Duramax), or NV4500 / NV5600 manual � Dodge / Ram 2500/3500: 47RE / 47RH / 48RE / 68RFE / Aisin AS69RC automatic, or NV5600 / G56 manual A Ford F-350 transmission will NOT bolt to a Chevy or Ram engine without major modifications.
Opting for a used Ford F-350 transmission can be a cost-effective solution without compromising on quality. Benefits: � Significant Cost Savings: Used transmissions are priced 40 to 60% less than new � Tested Reliability: Many used transmissions have proven their durability in real-world conditions � Wide Availability: Large market for used Ford F-350 transmissions ensures you can find the right fit � Eco-Friendly Option: Choosing a used transmission helps reduce waste Maintenance Tips for Your Ford F-350 Transmission To maximize the lifespan of your Ford F-350 transmission: � Regular Fluid Changes: Follow Ford's recommended intervals (30,000 miles for severe service, 60,000 miles for normal) � Use Correct Fluid: Mercon V for E4OD/4R100, Mercon SP or Mercon LV for TorqShift variants, ZF-spec MTF for ZF S6-650 manual � Avoid Overloading: Respect the vehicle's towing and payload capacities � Allow Warm-Up Time: Let the transmission warm up before heavy use, especially in cold weather � Tow/Haul Mode for Towing: Use Tow/Haul mode on TorqShift transmissions when towing 8,000 plus lb loads Find Your Perfect Ford F-350 Transmission Today Whether you're looking for the popular 4R100 automatic, the modern 6R140 TorqShift, the latest 10R140 10-speed, the legacy E4OD, the mid-generation 5R110W TorqShift, or the increasingly rare ZF S6-650 manual, our inventory has the F-350 transmission you need. Call (240) 301-0095 with your truck year, engine, and current transmission for personalized recommendations.
Ford F-350 Super Duty (1989 to 1998) E4OD automatic, ZF S5-47 manual (1995-1998) Ford F-350 Super Duty (1998 to 2003) 4R100 automatic, ZF S6-650 manual (1999 plus) Ford F-350 Super Duty (2003 to 2010) 5R110W TorqShift automatic, ZF S6-650 manual Ford F-350 Super Duty (2011 to 2019) 6R140 TorqShift automatic ONLY (no manual option) Ford F-350 Super Duty (2020 to Current) 10R140 10-speed automatic ONLY Compatible Engines 7.3 Powerstroke, 6.0 Powerstroke, 6.4 Powerstroke, 6.7 Powerstroke, 5.4 Triton V8, 6.8 Triton V10, 6.2 Boss V8, 7.3 Godzilla V8 NOT Compatible (Different Truck Brands) GM Silverado/Sierra HD (use Allison or NV5600), Ram 2500/3500 (use 47RE/48RE/68RFE/AS69RC/G56/NV5600)
� All gears tested for shift quality (6 for ZF6 manual, full automatic function for autos) � Synchro condition assessed for manual / valve body condition for automatic � Input and output spline condition documented � Bellhousing matched to specific engine
� Fluid sample analyzed for metal contamination � Mileage from donor documented where available � All six F-350 transmission options available (E4OD, 4R100, 5R110W, 6R140, 10R140, ZF S6-650) � Year and engine generation correctly matched to transmission family � All gears function-tested before shipping � 30% off freight pallet delivery to all 50 states � 15 day replacement warranty on internal defects � Ford Super Duty experienced support team � Cross-reference assistance for any F-350 transmission generation
| Bellhousing To Tailshaft Length | 18 inches (460 mm) |
|---|---|
| Fluid Capacity | 3.5 to 4 liters (ZF S6-650) |
| Fluid Type | Synthetic transmission fluid (Mercon SP) for ZF S6-650 manual |
| Gear Ratios | 1st 5.79:1, 2nd 3.30:1, 3rd 2.10:1, 4th 1.31:1, 5th 1.00:1, 6th 0.72:1 (ZF S6-650) |
| Input Shaft Spline Count | 10 splines (ZF S6-650) |
| Output Shaft Spline Count | 31 splines (ZF S6-650) |
| Overall Length | 27 inches (690 mm) (ZF S6-650) |
| Torque Rating | Up to 750 lb-ft (ZF S6-650 HD variant) |
| Weight | 200 lbs (ZF S6-650) |
| Type | Manual transmission (6-speed) |
| Manufacturer | ZF Friedrichshafen AG (Germany) for this ZF S6-650; Ford Motor Company for the E4OD / 4R100 / 5R110W / 6R140 / 10R140 automatics |
| Model | ZF S6-650; also available: E4OD, 4R100, 5R110W TorqShift, 6R140 TorqShift, 10R140 |
| Compatibility | 1999 to 2010 F-350 Super Duty (this ZF S6-650 manual); other variants for full F-350 production years |
| Price | $1,999.00 |
I needed a replacement transmission for my Ford F350, and Vaz Auto Solutions had just what I was looking for. The transmission arrived quickly and was in great shape, exactly as described on their website. The TorqShift 6-speed automatic transmission is built to handle the heavy-duty demands of the F350, providing smooth shifts and reliable performance.
Vaz Auto Solutions provided me with an excellent deal on a transmission for my Ford F350. The transmission was in top condition and had been thoroughly inspected before shipping. The TorqShift transmission is designed to handle the massive torque output of the F350's diesel engine, ensuring smooth and reliable operation even under heavy loads.
Contact (240) 301-0095 within 15 days.
