Product Description
The ATS 309-845-4362 Stage 4 Allison LCT1000 Transmission Package is engineered for 2011–2016 6.6L LML Duramax trucks requiring superior strength, reliability, and performance. Designed specifically for 4WD applications with PTO capability, this transmission package is built to handle aggressive towing, heavy workloads, and increased horsepower over stock.
This Stage 4 package eliminates factory weak points with upgraded clutch packs, enhanced internal components, and precision calibration. Paired with the ATS Five Star torque converter and deep transmission pan, it delivers improved torque transfer, reduced heat, and consistent performance under demanding conditions.
Perfect for trucks running moderate to high power levels, this transmission offers a significant increase in torque capacity while maintaining smooth drivability for both daily use and work applications.
FAQ
Q: What power level can the ATS Stage 4 transmission handle?
A: The Stage 4 is designed for high-performance towing and street applications, typically supporting up to approximately 700–750 horsepower depending on setup.
Q: What does PTO compatibility mean?
A: PTO (Power Take-Off) allows the transmission to power auxiliary equipment such as hydraulic pumps, making it ideal for work trucks.
Q: Is this transmission suitable for towing?
A: Yes, it is specifically designed to handle heavy towing with improved durability and cooling over stock transmissions.
Q: Does this include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved efficiency and torque multiplication.
Fitment
- 2011 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2012 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2013 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2014 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2015 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2011 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2012 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2013 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2014 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2015 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
- 2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (4WD)
Key Features
- Designed for 700–750HP applications
- Increased torque capacity over stock
- Enhanced clutch packs and internal upgrades
- ATS Five Star torque converter included
- Deep transmission pan for improved cooling
- PTO compatible for work truck applications
- Improved shift quality and durability
- Ideal for towing, work, and performance builds
Specifications for ATS 309-845-4362
| Specification | Details |
|---|---|
| Part Number | 309-845-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 4 |
| Drivetrain | 4WD |
| PTO Compatible | Yes |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| Horsepower Rating | Up to 750 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 |
