Product Description
The ATS 309-813-4440 Stage 1 Allison LCT1000 Transmission Package is a premium upgrade for 2017–2019 6.6L L5P Duramax trucks equipped with PTO and 2WD configurations. Designed to improve reliability and performance over the factory transmission, this package addresses common weak points while maintaining excellent drivability for daily use and towing applications.
This Stage 1 transmission is ideal for stock to mildly modified trucks, offering increased clutch holding capacity, improved shift quality, and enhanced durability under load. The inclusion of a PTO provision makes it perfect for work trucks and commercial applications requiring auxiliary power take-off functionality.
Built with precision and backed by ATS engineering, this transmission ensures dependable performance whether you're towing heavy loads or using your truck for demanding job site tasks.
FAQ
Q: What is the benefit of a Stage 1 transmission upgrade?
A: A Stage 1 upgrade improves durability, clutch capacity, and shift quality over stock, making it ideal for towing and daily driving.
Q: Does this transmission support PTO operation?
A: Yes, this package includes PTO capability, making it ideal for work trucks requiring auxiliary equipment operation.
Q: Is this suitable for tuned or modified trucks?
A: Yes, it can handle mild performance upgrades, but higher horsepower builds may require a higher stage transmission.
Q: Does this include a torque converter?
A: Yes, it includes an ATS performance torque converter designed for improved efficiency and durability.
Fitment
- 2017 Chevrolet Silverado 2500HD/3500HD 6.6L L5P Duramax (2WD w/ PTO)
- 2018 Chevrolet Silverado 2500HD/3500HD 6.6L L5P Duramax (2WD w/ PTO)
- 2019 Chevrolet Silverado 2500HD/3500HD 6.6L L5P Duramax (2WD w/ PTO)
- 2017 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax (2WD w/ PTO)
- 2018 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax (2WD w/ PTO)
- 2019 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax (2WD w/ PTO)
Key Features
- Stage 1 upgraded Allison LCT1000 transmission
- Designed for stock to mildly modified trucks
- Increased clutch holding capacity
- Improved shift quality and transmission longevity
- PTO (Power Take-Off) compatible
- ATS performance torque converter included
- Ideal for towing, fleet, and work truck applications
- Enhanced reliability over factory transmission
Specifications for ATS 309-813-4440
| Specification | Details |
|---|---|
| Part Number | 309-813-4440 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 1 |
| Drivetrain | 2WD |
| PTO Compatibility | Yes |
| Engine Compatibility | 6.6L Duramax L5P |
| Model Years | 2017 - 2019 |
| Recommended Power Level | Stock to Mildly Modified |
| 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 |
