Protect your investment and prevent catastrophic transmission failure with the ATS Billet Thermal Bypass Valve Insert. Engineered specifically for the 2019-Current 3.6L Jeep JL Wrangler / JT Gladiator and 2024-Current 2.0L Jeep Wrangler equipped with the 850RE 8-speed automatic transmission, this simple drop-in upgrade fixes a dangerous factory flaw before it costs you thousands in repairs.
The OEM Problem: Factory Valve Sticking and Transmission Overheating
The OEM thermostatic valve in the TorqueFlite 850RE 8-speed automatic transmission is prone to sticking in the closed position. When this valve fails closed, it completely blocks automatic transmission fluid (ATF) flow to the transmission oil cooler / heat exchanger. With nowhere for the heat to go, your transmission will quickly overheat and internally cook itself.
To make matters worse, the factory transmission temperature warning light won't illuminate until your fluid reaches 240 degrees Fahrenheit - a temperature high enough to cause rapid fluid breakdown, clutch slippage, and irreversible internal gear damage. Worse yet, Chrysler does not sell the factory valve as a standalone replacement part; fixing it through the dealer requires purchasing the entire cast aluminum heat exchanger housing.
The Solution: ATS Billet Thermal Bypass Upgrade
The ATS Thermal Bypass Valve Insert eliminates the failure-prone factory mechanism, ensuring continuous, unrestricted fluid flow to and from your transmission cooler. By maintaining proper ATF circulation, this upgrade noticeably lowers operating temperatures, protects your torque converter, and preserves long-term shifting performance.
Key Benefits and Features:
- ATS Billet Thermal Bypass Valve Insert for Jeep Wrangler JL and Gladiator JT (850RE Transmission)
- Prevents Overheating Failures: Eliminates the factory thermostatic valve stick risk, protecting your torque converter and gear sets.
- Significantly Lowers ATF Temps: Maximize fluid life and keep your 850RE running cool under heavy loads.
- Billet Aluminum Construction: Precision CNC-machined for superior durability over stock components.
- Cost-Effective Protection: Saves thousands of dollars compared to a complete transmission / torque converter assembly replacement.
- Direct Drop-In Fitment: Features an integrated quick-connect coupler for a clean, leak-free installation.
Essential Upgrade for Off-Roading, Towing, and Lifted Jeeps
Stock Jeeps are already vulnerable, but extra stress compounds the heat fast. If you run larger off-road tires, tackle steep rock crawls, or regularly tow trailers and haul heavy cargo, your torque converter works near capacity and generates extreme heat. Under these high-demand conditions, instant transmission fluid cooling isn't just an improvement - it is critical to survival.
Quick and Easy DIY Installation
Installing the ATS Billet Thermal Bypass Valve Insert is a straightforward job you can perform right in your garage or driveway using basic hand tools:
- Disconnect the quick-connect coupler at the transmission line/valve junction.
- Pull out the factory transmission line.
- Remove the two T30 Torx head screws securing the factory valve insert.
- Insert the new ATS Billet Valve into the housing.
- Seat the transmission line into the integrated ATS quick-connect coupler until it firmly clicks into place.
Vehicle Fitment:
- 2019-Present Jeep Wrangler JL (3.6L V6) with 850RE 8-Speed Automatic Transmission
- 2020-Present Jeep Gladiator JT (3.6L V6) with 850RE 8-Speed Automatic Transmission
- 2024-Present Jeep Wrangler JL (2.0L Turbo I4) with 850RE 8-Speed Automatic Transmission
Fitment Note: Please verify your vehicle's setup prior to ordering. Review the photos in the ATS instruction guide and visually inspect under your Jeep to confirm your transmission is equipped with this thermostatic valve assembly.
Details:
- Fits: 2019-Present Jeep Wrangler JL/Jeep Gladiator JT
- Drive: 2WD, 4WD
- Fuel Type: Gas
- Liter: 3.6 Liter, 2.0 Liter
- Material: Billet Aluminum
- Transmission Model: 850RE
- Transmission Speed: 8 Speed
- Transmission Type: Automatic
- Hardware Included: Yes
- Warranty: 5-Year/500,000 Mile Limited Warranty
