Product Description
The ATS 601-924-4248 Allison Co-Pilot Transmission Controller is a must-have upgrade for 2001-2005 6.6L Duramax trucks looking to improve transmission performance, clutch holding capacity, and overall drivability. Designed specifically for the Allison 1000 transmission, the Co-Pilot optimizes line pressure and shift timing to eliminate slippage and increase durability.
Factory Allison transmissions often struggle to hold power in tuned or heavy-duty applications, leading to clutch wear and premature failure. The ATS Co-Pilot solves this by actively monitoring throttle position and load, then adjusting transmission line pressure in real time to provide firm, controlled shifts.
This results in improved torque capacity, longer transmission life, and better towing performance — making it one of the most effective upgrades for both stock and modified Duramax trucks.
FAQ
Q: What does the ATS Co-Pilot do?
A: It increases transmission line pressure and optimizes shift timing to reduce clutch slippage and improve transmission performance.
Q: Will this help with towing?
A: Yes, it significantly improves holding power and reduces heat buildup, making it ideal for towing and heavy loads.
Q: Is this required for tuned trucks?
A: It is highly recommended for tuned Duramax trucks to prevent transmission slip and extend transmission life.
Q: Does this replace internal transmission components?
A: No, it is an external controller that enhances the performance of the factory or built Allison transmission.
Fitment
- 2001 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax
- 2002 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax
- 2003 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax
- 2004 Chevrolet Silverado 2500HD/3500HD 6.6L LB7 Duramax
- 2005 Chevrolet Silverado 2500HD/3500HD 6.6L LLY Duramax
- 2001 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax
- 2002 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax
- 2003 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax
- 2004 GMC Sierra 2500HD/3500HD 6.6L LB7 Duramax
- 2005 GMC Sierra 2500HD/3500HD 6.6L LLY Duramax
Key Features
- Increases transmission line pressure
- Reduces clutch slippage
- Improves shift firmness and consistency
- Extends transmission life
- Ideal for towing and performance applications
- Works with stock or built Allison transmissions
- Plug-and-play installation
Specifications for ATS 601-924-4248
| Specification | Details |
|---|---|
| Part Number | 601-924-4248 |
| UPC | Not Available |
| GTIN | Not Available |
| Product Type | Transmission Controller |
| Transmission Compatibility | Allison 1000 |
| Engine Compatibility | 6.6L Duramax (LB7, LLY) |
| Model Years | 2001-2005 |
| Function | Controls line pressure and shift timing |
| Installation | Plug-and-Play |
| Shipping Info | Standard Ground Shipping |
| Warranty | Limited Manufacturer Warranty |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
