Full-Flow Transmission Thermal Bypass Valve Kit, fits Jeep Wrangler JK 2012-2018
The transmission in your Jeep Wrangler is the heart of its drivetrain. Whether you're hauling groceries or hitting the trail, it's vital to keep it performing at its best, and keeping the transmission fluid cool is crucial to that goal. In an attempt to balance drivability and the health of your transmission, Jeep fitted a thermostatic bypass valve to the lines that feed the transmission cooler. This valve ensures fluid doesn't flow through the cooler before the transmission reaches operating temperature, preventing overcooling in cold environments. However, when the thermostat in this valve fails, it's almost a guarantee your transmission will overheat. Moreover, those who live in hot climates will likely never have to worry about overcooling, rendering the valve a useless flow restriction. That's why Mishimoto has developed a full-flow thermostatic bypass valve for the 2012-2018 Jeep Wrangler. The Mishimoto thermal bypass valve kit includes an all-aluminum CNC-machined housing that replaces the stock unit. This full-flow valve allows fluid to pump through the cooler as soon as the vehicle is started, eliminating the potential failure point of the stock bypass and providing cooling benefits. The full-flow design is beneficial to vehicles operating in hot climates, extreme driving conditions, or towing heavy loads. As with all Mishimoto products, this Full-Flow Transmission Thermal Bypass Valve Kit includes our signature Lifetime Warranty.
- Direct-fit for 2012-2018 Jeep Wrangler JK
- Machined cooling fins for added heat dissipation
- Durable anodized finish
- Mishimoto Lifetime Warranty
- Installs in less than 1 hour
- Durable CNC-machined billet aluminum design
- Increased flow over stock bypass valve
- Includes 160°F thermostat to match stock valve opening temp
- Customize the valve's opening temp with a range of Mishimoto thermostats
- Fully serviceable thermostat for fast warm-up in cold climates and thermostat bypass for constant cooling in hot climates
Application Summary:
| Year |
Make/Model |
| 2005-2014 |
Chrysler 300 |
| 2008-2014 |
Dodge Challenger |
| 2006-2019 |
Dodge Charger |
| 2011-2013 |
Dodge Durango |
| 2005-2008 |
Dodge Magnum |
| 2007-2011 |
Dodge Nitro |
| 2009-2010 |
Jeep Commander |
| 2007-2013 |
Jeep Grand Cherokee |
| 2008 |
Jeep Liberty |
| 2011-2012 |
Jeep Liberty |
| 2012-2018 |
Jeep Wrangler |
| 2018 |
Jeep Wrangler JK |
| 2012-2020 |
Ram 1500 |
| 2012-2013 |
Ram 2500 |
| Attributes |
| Color |
Silver |
| Country of Origin (Primary) |
CN |
| GTIN |
00840197706091 |
| Hazardous Material Code |
N |
| Install Difficulty |
1 |
| Life Cycle Status Code |
Available to Order |
| NAFTA Preference Criterion Code |
B |
| SDR Required Flag |
N |
| SellingPoint01 |
Direct-fit for 2012-2018 Jeep Wrangler JK |
| SellingPoint02 |
Installs in less than 1 hour |
| SellingPoint03 |
Eliminates failure-prone bypass valve |
| SellingPoint04 |
Durable CNC-machined billet aluminum construction |
| SellingPoint05 |
Full-flow bypass allows the transmission cooler to operate at maximum efficiency |
| SellingPoint06 |
Helps extend transmission life and prevent overheating |
| SellingPoint07 |
Fits with stock transmission cooler piping, requiring no modification for installation |
| SellingPoint08 |
Integrated heat-sink fins provide unique styling and added heat dissipation |
| SellingPoint09 |
Durable anodized finish |
| SellingPoint1 |
Direct-fit for 2012-2018 Jeep Wrangler JK |
| SellingPoint10 |
Mishimoto Lifetime Warranty |
| SellingPoint11 |
N/A |
| SellingPoint12 |
N/A |
| SellingPoint13 |
N/A |
| SellingPoint14 |
N/A |
| SellingPoint15 |
N/A |
| SellingPoint2 |
Installs in less than 1 hour |
| SellingPoint3 |
Eliminates failure-prone bypass valve |
| SellingPoint4 |
Durable CNC-machined billet aluminum construction |
| SellingPoint5 |
Full-flow bypass allows the transmission cooler to operate at maximum efficiency |
| SellingPoint6 |
Helps extend transmission life and prevent overheating |
| SellingPoint7 |
Fits with stock transmission cooler piping, requiring no modification for installation |
| SellingPoint8 |
Integrated heat-sink fins provide unique styling and added heat dissipation |
| SellingPoint9 |
Durable anodized finish |
| TechSpec Applications |
Fits Vehicles With 5-Speed Automatic Transmission----Chrysler 300 V6 (2.7L) 2007-2008--Chrysler 300 V6 (3.5L) 2005-2010--Chrysler 300 V6 (3.6L) 2011-2014--Chrysler 300 V8 (5.7L) 2005-2013--Chrysler 300 V8 (6.1L) 2007-2010--Chrysler 300 V8 (6.4L) 2012--Dodge Magnum V6 (2.7L) 2007-2008--Dodge Magnum V6 (3.5L) 2005-2008--Dodge Magnum V8 (5.7L) 2005-2008--Dodge Magnum V8 (6.1L) 2006-2008--Dodge Charger V6 (2.7L) 2007-2008--Dodge Charger V6 (3.5L) 2006-2010--Dodge Charger V6 (3.6L) 2011-2019--Dodge Charger V8 (5.7L) 2006-2013--Dodge Charger V8 (6.1L) 2006-2010--Dodge Charger V8 (6.4L) 2012-2013--Dodge Nitro V6 (3.7L) 2007-2008--Dodge Nitro V6 (4.0L) 2007-2011--Dodge Ram 1500 V8 (4.7L) 2012-2013--Dodge Ram 1500 V8 (5.7L) 2012-2020--Dodge Ram 2500 V8 (5.7L) 2012-2013--Jeep Grand Cherokee V6 (3.0L) 2007-2009--Jeep Grand Cherokee V6 (3.6L) 2011-2013--Jeep Grand Cherokee V6 (3.7L) 2007-2010--Jeep Grand Cherokee V8 (4.7L) 2007--Jeep Grand Cherokee V8 (5.7L) 2007--Jeep Grand Cherokee V8 (6.1L) 2007-2010--Jeep Grand Cherokee V8 (6.4L) 2012-2013--Jeep Liberty V6 (3.7L) 2011-2012--Jeep Commander V6 (3.7L) 2008-2010--Jeep Wrangler V6 (3.6L) 2012-2018 |
| TechSpec Chassis Codes |
LX--KA--1500--2500--WK--WK2--KK--XK--JK |
| TechSpec Engine Codes |
LH--Pentastar--PowerTech--EKG--5.7 Hemi--6.1 Hemi--6.4 Hemi |
| TechSpec Includes |
(1) CNC-Machined Billet Aluminum Thermal Bypass Valve--Mishimoto Lifetime Warranty |
| TechSpec Mishimoto Activation Temperature (F) |
N/A |
| TechSpec Note |
This performance thermostatic bypass valve only fits vehicles with 5-speed automatic transmissions--Mishimoto does not recommend customers in cold climates install the thermostat bypass to avoid overcooling of the transmission fluid |
| TechSpec OEM Activation Temperature (F) |
160 |
