Product Description
The ATS 303-800-8320 42RLE Performance Valve Body is a precision-engineered upgrade for 2007-2011 Jeep Wrangler JK models equipped with the 42RLE automatic transmission. Designed to correct common factory shortcomings, this valve body improves shift quality, transmission efficiency, and overall durability for both daily driving and off-road applications.
ATS modifies the factory valve body to increase line pressure, optimize hydraulic flow, and deliver firmer, more consistent shifts. These improvements help reduce clutch slippage, minimize heat buildup, and extend the life of the transmission. Whether you're running larger tires, towing, or simply want better drivability, this upgrade provides noticeable performance gains.
This performance valve body is ideal for Jeep owners looking to improve reliability and responsiveness without requiring a full transmission rebuild. It is a direct-fit solution that enhances the performance of the 42RLE platform.
FAQ
What does the ATS 303-800-8320 valve body upgrade do?
It improves line pressure, enhances shift firmness, reduces slippage, and increases overall transmission durability.
What vehicles does this fit?
This valve body fits 2007-2011 Jeep Wrangler JK models equipped with the 42RLE automatic transmission.
Is this a good upgrade for larger tires or off-road use?
Yes. The improved line pressure and shift control help compensate for added load from larger tires and off-road driving conditions.
Do I need tuning with this valve body?
No tuning is required, but tuning may further enhance performance depending on your setup.
Why upgrade the factory 42RLE valve body?
The stock valve body can suffer from soft shifts and heat buildup. ATS upgrades address these issues for better performance and longevity.
FITMENT
2007-2011 Jeep Wrangler JK 3.8L Gas
Equipped with 42RLE Automatic Transmission
Specifications for ATS 303-800-8320
| Specification | Details |
|---|---|
| Part Number | 303-800-8320 |
| Product Name | ATS 42RLE Performance Valve Body |
| Transmission Compatibility | 42RLE Automatic |
| Engine Fitment | 3.8L Gas |
| Vehicle Fitment | 2007-2011 Jeep Wrangler JK |
| Included Components | Modified Performance Valve Body |
| Performance Benefit | Improved Line Pressure, Shift Quality, and Transmission Durability |
| UPC | Not Available |
| GTIN | Not Available |
| Shipping Information | Standard Ground Shipping |
| Prop 65 | WARNING: Cancer and Reproductive Harm |