Product Description
The ATS 309-843-4362 Stage 4 Allison LCT1000 Transmission Package is a high-performance upgrade designed specifically for 2011–2016 6.6L LML Duramax trucks equipped with PTO and 2WD configurations. Built to handle increased horsepower and torque demands, this transmission package strengthens the factory Allison platform with upgraded internals and precision engineering.
Ideal for towing, work trucks, and performance applications, the Stage 4 package delivers improved shift quality, increased clutch holding capacity, and long-term durability under load. The inclusion of a PTO-compatible design ensures seamless integration for trucks requiring auxiliary power take-off functionality.
This complete package includes ATS’s proven Five Star torque converter and advanced internal upgrades, providing a reliable solution capable of supporting significantly more power than stock while maintaining excellent drivability.
FAQ
Q: What is the advantage of the Stage 4 transmission over stock?
A: The Stage 4 includes upgraded clutch packs, improved internal components, and enhanced durability to handle higher torque and heavy-duty use.
Q: What does PTO compatibility mean?
A: PTO (Power Take-Off) compatibility allows the transmission to operate auxiliary equipment such as hydraulic pumps, commonly used in work trucks.
Q: Is this transmission suitable for towing?
A: Yes, it is designed for heavy towing and commercial use, offering increased reliability and performance under load.
Q: Does this package include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved efficiency and power transfer.
Fitment
- 2011 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2012 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2013 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2014 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2015 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2011 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2012 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2013 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2014 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2015 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
- 2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD, PTO)
Key Features
- Designed for increased horsepower and torque capacity
- Upgraded clutch packs and internal components
- PTO-compatible transmission design
- ATS Five Star torque converter included
- Improved shift firmness and transmission control
- Enhanced durability for towing and commercial use
- Built for performance and heavy-duty applications
Specifications for ATS 309-843-4362
| Specification | Details |
|---|---|
| Part Number | 309-843-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 2WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| Torque Capacity | Upgraded over stock |
| Shipping Weight | Approximately 400 lbs |
| Shipping Method | Freight (Core Charge Applies) |
| Warranty | 5 Year / 500,000 Mile Limited Warranty |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
