Product Description
Extreme Duty 6R140 Performance with ATS Stage 4 Power
The ATS 309-944-3368 Stage 4 6R140 Transmission Package is engineered for serious diesel performance and extreme-duty applications in 2011–2014 Ford Super Duty 6.7L Powerstroke 4WD trucks. Designed to handle significantly increased horsepower and torque, this package delivers unmatched durability, improved shift performance, and long-term reliability.
The factory 6R140 transmission is strong, but under high horsepower, towing, or aggressive tuning, it can experience clutch slip, overheating, and internal wear. ATS eliminates these weaknesses with a fully built Stage 4 transmission package featuring upgraded internals, increased clutch capacity, and precision calibration.
This package is ideal for high-performance builds, heavy towing, and diesel enthusiasts looking for maximum strength and confidence under load.
Key Features:
- Stage 4 fully built 6R140 transmission package
- Designed for high horsepower and torque applications
- Increased clutch holding capacity and durability
- Improved shift quality and transmission response
- Ideal for towing, racing, and heavy-duty use
- Engineered and tested by ATS Diesel Performance
FAQ
What is included in the Stage 4 package?
This package includes a fully built 6R140 transmission with upgraded internal components designed for maximum strength and performance.
Is this suitable for high horsepower trucks?
Yes, Stage 4 is designed specifically for high-performance applications with significantly increased power levels.
Is this a direct replacement?
Yes, it is designed as a direct-fit upgrade for compatible 4WD 6R140-equipped trucks.
Does this improve towing performance?
Absolutely. Increased holding capacity and durability make it ideal for heavy towing and hauling.
Fitment:
- 2011–2014 Ford F-250 / F-350 / F-450 Super Duty
- 6.7L Powerstroke Diesel Engine
- 6R140 Automatic Transmission
- 4WD Models Only
Note: Professional installation recommended. Verify application before purchase.
Specifications for ATS 309-944-3368
| ATS 309-944-3368 Product Specifications | |
|---|---|
| Part Number | 309-944-3368 |
| Brand | ATS Diesel Performance |
| Product Type | Stage 4 Complete Transmission Package |
| Transmission Compatibility | 6R140 |
| Engine Compatibility | 6.7L Powerstroke |
| Vehicle Fitment | 2011–2014 Ford Super Duty F-250 / F-350 / F-450 (4WD) |
| UPC | N/A |
| GTIN | N/A |
| Shipping Weight | Approx. 350 lbs |
| Shipping Dimensions | Freight Shipment Required |
| Core Charge | Yes – Refundable Core Charge Applies |
| California Prop 65 | WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov |
