Product Description
The ATS 309-842-4362 Stage 4 Allison LCT1000 Transmission Package is a high-performance upgrade designed for 2011–2016 6.6L LML Duramax trucks. Built to handle significantly increased horsepower and torque, this 2WD transmission package eliminates factory limitations and delivers superior strength, reliability, and performance for both towing and street applications.
Engineered with upgraded clutch packs, billet internal components, and precision calibration, the Stage 4 package offers improved shift quality, reduced slippage, and enhanced durability under load. Paired with the ATS Five Star torque converter and deep transmission pan, this setup ensures optimal power transfer and cooling efficiency.
This transmission is ideal for trucks running moderate to high power levels, making it a perfect solution for daily driving, towing, and performance builds that demand more than stock capability.
FAQ
Q: What is the difference between Stage 4 and Stage 5 transmissions?
A: Stage 4 is built for high-performance street and towing applications, while Stage 5 includes additional billet upgrades for extreme horsepower and competition use.
Q: Is this transmission suitable for towing heavy loads?
A: Yes, the upgraded internals and improved torque capacity make it excellent for towing heavy loads with increased reliability.
Q: Does this include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved torque multiplication and efficiency.
Q: What horsepower can this transmission support?
A: This transmission is designed to handle high horsepower applications, typically up to approximately 750–800HP depending on setup.
Fitment
- 2011 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2012 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2013 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2014 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2015 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2011 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2012 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2013 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2014 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2015 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
Key Features
- Designed for up to 750–800HP applications
- Increased clutch capacity for improved holding power
- Upgraded internal components for durability
- ATS Five Star torque converter included
- Deep transmission pan for better cooling
- Improved shift quality and reduced slippage
- Built for towing, daily driving, and performance use
Specifications for ATS 309-842-4362
| Specification | Details |
|---|---|
| Part Number | 309-842-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 2WD |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| Horsepower Rating | Up to 800 HP |
| Torque Capacity | Significantly increased 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 |
