Product Description
The ATS 601-900-8320 42RLE Co-Pilot Transmission Controller is a performance-driven upgrade designed for 2007-2011 Jeep vehicles equipped with the 3.8L engine and 42RLE automatic transmission. Engineered to improve shift quality, increase transmission longevity, and enhance overall drivability, this controller gives you precise control over your transmission behavior.
The factory transmission tuning often prioritizes comfort over performance, leading to soft shifts and excess heat buildup. The ATS Co-Pilot corrects these issues by increasing line pressure, delivering firmer, more consistent shifts that reduce clutch slippage and wear.
Whether you're off-roading, towing, or daily driving, this controller provides improved throttle response, better gear holding, and increased durability—making it a must-have upgrade for Jeep owners looking to get more out of their drivetrain.
FAQ
Q: What does the ATS Co-Pilot transmission controller do?
A: It increases line pressure and optimizes shift timing to deliver firmer shifts, reduce slippage, and extend transmission life.
Q: Will this improve off-road performance?
A: Yes, it helps maintain better gear control and responsiveness, which is beneficial in off-road and low-speed conditions.
Q: Is this difficult to install?
A: Installation is straightforward with basic mechanical knowledge and typically involves wiring into the transmission control system.
Q: Does this help with transmission longevity?
A: Yes, by reducing slippage and heat buildup, it significantly helps extend the life of the transmission.
Fitment
- 2007 Jeep Wrangler 3.8L (42RLE Automatic)
- 2008 Jeep Wrangler 3.8L (42RLE Automatic)
- 2009 Jeep Wrangler 3.8L (42RLE Automatic)
- 2010 Jeep Wrangler 3.8L (42RLE Automatic)
- 2011 Jeep Wrangler 3.8L (42RLE Automatic)
- 2007 Jeep Wrangler Unlimited 3.8L (42RLE Automatic)
- 2008 Jeep Wrangler Unlimited 3.8L (42RLE Automatic)
- 2009 Jeep Wrangler Unlimited 3.8L (42RLE Automatic)
- 2010 Jeep Wrangler Unlimited 3.8L (42RLE Automatic)
- 2011 Jeep Wrangler Unlimited 3.8L (42RLE Automatic)
Key Features
- Designed for 42RLE automatic transmissions
- Increases transmission line pressure
- Provides firmer, more consistent shifts
- Reduces clutch slippage and heat buildup
- Improves transmission durability and lifespan
- Enhances throttle response and drivability
- Ideal for off-road, towing, and daily use
Specifications for ATS 601-900-8320
| Specification | Details |
|---|---|
| Part Number | 601-900-8320 |
| UPC | Not Available |
| GTIN | Not Available |
| Product Type | Transmission Controller |
| Transmission Compatibility | 42RLE Automatic |
| Engine Compatibility | 3.8L Jeep |
| Vehicle Fitment | 2007-2011 Jeep Wrangler & Wrangler Unlimited |
| Function | Controls line pressure and shift performance |
| Installation | Wiring required |
| Shipping Info | Standard Ground Shipping |
| Warranty | Limited Manufacturer Warranty |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
