Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Welcome to Atlus Automotive
Main menu
-
Performance
- Performance
-
Intake & Exhaust
- Intake & Exhaust
- Air Intake Systems
- Cold Air Intakes
- Air Intake Components
- Air Filters
- Air Filters - Drop In
- Air Filters - Direct Fit
- Air Filters - Universal Fit
- Pre-Filters
- Recharge Kits
- OE Replacement Air Intake Components
- Exhaust, Mufflers & Tips
- Catback
- Axle Back
- Muffler
- Tips
- Headers & Manifolds
- Connecting Pipes
- Catalytic Converter Direct Fit
- Catalytic Converter Universal
- Exhaust Collector
- Merge Collectors
-
Engine Upgrades
- Engine Upgrades
- Engine Components
- Camshafts
- Valve Springs, Retainers
- Head Gaskets
- Head Stud & Bolt Kits
- Main Stud & Bolt Kits
- Gasket Kits
- Engine Mounts
- Oil Catch Cans
- Oil Separators
- Throttle Bodies
- Throttle Body Spacers
- Crankshaft Dampers
- Valves
- Piston Rings
- Piston Sets - Forged - 4cyl
- Piston Sets - Cast - 4cyl
- Connecting Rods - 4Cyl
- Rotating Assemblies
- Stroker Kits
-
Turbo & Cooling
-
Fuel, Ignition & Tuning
-
Suspension & Handling
- Suspension & Handling
-
Lowering & Coilovers
-
Arms, Links & Alignment
-
Lift & Off-Road Suspension
-
Chassis & Bracing
-
Wheels & Tires
- Wheels & Tires
-
Wheels
-
Tires
-
Drivetrain & Clutch
-
Brakes
- Brakes
-
Pads & Rotors
-
Brake Kits & Calipers
-
Lines, Fluid & Hardware
-
Exterior & Lighting
- Exterior & Lighting
-
Lighting
-
Exterior Styling
-
Bumpers & Protection
-
Interior & Electronics
- Interior & Electronics
-
Interior Upgrades
-
Gauges & Electronics
-
Audio & Safety
-
Overland & Utility
- Overland & Utility
-
Bed Covers & Bed Gear
-
Steps, Racks & Storage
-
Trail & Towing
-
Maintenance & Garage
- Maintenance & Garage
-
Oil, Fluids & Filters
-
Detailing & Car Care
-
Tools & Fabrication
Your cart
Mishimoto
Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
The transmission in your 2012-2018 Jeep Wrangler JK 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 driveability 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 performance thermostatic bypass valve for the 2012-2018 Jeep Wrangler JK. Our performance thermostatic bypass valve features a fully-serviceable and removable thermostat. For those who live in hot climates, the thermostat can be replaced with the included bypass to allow full flow to the transmission cooler at all times. Speaking of flow, the Mishimoto performance thermostatic bypass provides increased flow over the stock valve to ensure your transmission cooler operates at peak efficiency, even with the thermostat installed. The included thermostat opens at the stock temperature of 160F (71C), but the valve can be customized to suit your needs with any available Mishimoto thermostat.The Mishimoto performance thermostatic bypass valve is a direct-fit and is made from durable aircraft-grade aluminum that's anodized to withstand even the harshest environments. Like all of our Jeep products, our performance thermostatic bypass valve is backed by our Mishimoto Lifetime Warranty.
- Durable CNC-machined billet aluminum design
- Direct-fit for 2012-2018 Jeep Wrangler JK
- Installs in less than 1 hour
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2007,2011-2014 | Chrysler | 300 | Base |
| 2005-2014 | Chrysler | 300 | C |
| 2012-2014 | Chrysler | 300 | C Luxury |
| 2005-2010 | Chrysler | 300 | C SRT8 |
| 2005-2012 | Chrysler | 300 | Limited |
| 2008-2009 | Chrysler | 300 | LX |
| 2010,2012-2014 | Chrysler | 300 | S |
| 2009 | Chrysler | 300 | Signature Series |
| 2012-2014 | Chrysler | 300 | SRT8 |
| 2013 | Chrysler | 300 | SRT8 Core |
| 2005-2010 | Chrysler | 300 | Touring |
| 2009-2014 | Dodge | Challenger | R/T |
| 2012 | Dodge | Challenger | R/T Classic |
| 2014 | Dodge | Challenger | Rallye Redline |
| 2009-2011 | Dodge | Challenger | SE |
| 2008-2014 | Dodge | Challenger | SRT8 |
| 2012-2014 | Dodge | Challenger | SXT |
| 2012 | Dodge | Challenger | SXT Plus |
| 2006-2007 | Dodge | Charger | Base |
| 2017-2018 | Dodge | Charger | Daytona |
| 2017-2018 | Dodge | Charger | Daytona 392 |
| 2006 | Dodge | Charger | Daytona R/T |
| 2018-2019 | Dodge | Charger | GT |
| 2018 | Dodge | Charger | GT Plus |
| 2006-2019 | Dodge | Charger | Pursuit |
| 2006-2019 | Dodge | Charger | R/T |
| 2017-2018 | Dodge | Charger | R/T 392 |
| 2015-2016 | Dodge | Charger | R/T Road & Track |
| 2015-2018 | Dodge | Charger | R/T Scat Pack |
| 2019 | Dodge | Charger | Scat Pack |
| 2006-2017 | Dodge | Charger | SE |
| 2015-2018 | Dodge | Charger | SRT 392 |
| 2015-2019 | Dodge | Charger | SRT Hellcat |
| 2006-2010,2012-2014 | Dodge | Charger | SRT8 |
| 2006-2010,2012-2019 | Dodge | Charger | SXT |
| 2012,2018 | Dodge | Charger | SXT Plus |
| 2018 | Dodge | Charger | SXT Plus Leather |
| 2011-2013 | Dodge | Durango | Citadel |
| 2011-2013 | Dodge | Durango | Crew |
| 2011 | Dodge | Durango | Express |
| 2011 | Dodge | Durango | Heat |
| 2011-2013 | Dodge | Durango | R/T |
| 2012-2013 | Dodge | Durango | Special Service |
| 2012-2013 | Dodge | Durango | SXT |
| 2005-2008 | Dodge | Magnum | R/T |
| 2005-2008 | Dodge | Magnum | SE |
| 2006-2008 | Dodge | Magnum | SRT8 |
| 2005-2008 | Dodge | Magnum | SXT |
| 2005 | Dodge | Magnum | SXT Special Edition |
| 2010-2011 | Dodge | Nitro | Detonator |
| 2010-2011 | Dodge | Nitro | Heat |
| 2007-2009 | Dodge | Nitro | R/T |
| 2009-2011 | Dodge | Nitro | SE |
| 2010-2011 | Dodge | Nitro | Shock |
| 2007-2009 | Dodge | Nitro | SLT |
| 2007-2008,2010-2011 | Dodge | Nitro | SXT |
| 2009-2010 | Jeep | Commander | Limited |
| 2009 | Jeep | Commander | Overland |
| 2009-2010 | Jeep | Commander | Sport |
| 2007-2013 | Jeep | Grand Cherokee | Laredo |
| 2007-2013 | Jeep | Grand Cherokee | Limited |
| 2007-2009,2011-2013 | Jeep | Grand Cherokee | Overland |
| 2012 | Jeep | Grand Cherokee | Overland Summit |
| 2007-2010,2012-2013 | Jeep | Grand Cherokee | SRT8 |
| 2012 | Jeep | Liberty | Jet |
| 2008,2011-2012 | Jeep | Liberty | Limited |
| 2011 | Jeep | Liberty | Renegade |
| 2008,2011-2012 | Jeep | Liberty | Sport |
| 2016 | Jeep | Wrangler | 75th Anniversary |
| 2012-2018 | Jeep | Wrangler | Rubicon |
| 2012-2017 | Jeep | Wrangler | Sahara |
| 2012-2018 | Jeep | Wrangler | Sport |
| 2016,2018 | Jeep | Wrangler | Sport S |
| 2016 | Jeep | Wrangler | Unlimited 75th Anniversary |
| 2018 | Jeep | Wrangler | Unlimited Moab |
| 2012-2018 | Jeep | Wrangler | Unlimited Rubicon |
| 2012-2018 | Jeep | Wrangler | Unlimited Sahara |
| 2012-2018 | Jeep | Wrangler | Unlimited Sport |
| 2016,2018 | Jeep | Wrangler | Unlimited Sport S |
| 2018 | Jeep | Wrangler JK | Rubicon |
| 2018 | Jeep | Wrangler JK | Sahara |
| 2018 | Jeep | Wrangler JK | Sport |
| 2018 | Jeep | Wrangler JK | Sport S |
| 2018 | Jeep | Wrangler JK | Unlimited Rubicon |
| 2018 | Jeep | Wrangler JK | Unlimited Sahara |
| 2018 | Jeep | Wrangler JK | Unlimited Sport |
| 2018 | Jeep | Wrangler JK | Unlimited Sport S |
| 2012-2020 | Ram | 1500 | Big Horn |
| 2012-2018 | Ram | 1500 | Express |
| 2013-2020 | Ram | 1500 | HFE |
| 2012-2020 | Ram | 1500 | Laramie |
| 2014-2015 | Ram | 1500 | Laramie Limited |
| 2012-2020 | Ram | 1500 | Laramie Longhorn |
| 2015-2020 | Ram | 1500 | Limited |
| 2014-2020 | Ram | 1500 | Lone Star |
| 2012-2016 | Ram | 1500 | Outdoorsman |
| 2013 | Ram | 1500 | R/T |
| 2015-2020 | Ram | 1500 | Rebel |
| 2012-2018 | Ram | 1500 | SLT |
| 2014-2018,2020 | Ram | 1500 | Special Service |
| 2012-2018 | Ram | 1500 | Sport |
| 2012 | Ram | 1500 | ST |
| 2012-2020 | Ram | 1500 | Tradesman |
| 2012 | Ram | 1500 | Tradesman HD |
| 2013 | Ram | 2500 | Big Horn |
| 2012-2013 | Ram | 2500 | Laramie |
| 2012-2013 | Ram | 2500 | Laramie Longhorn |
| 2013 | Ram | 2500 | Lone Star |
| 2012-2013 | Ram | 2500 | Outdoorsman |
| 2012-2013 | Ram | 2500 | Power Wagon |
| 2012-2013 | Ram | 2500 | SLT |
| 2012-2013 | Ram | 2500 | ST |
| 2013 | Ram | 2500 | Tradesman |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
The transmission in your 2012-2018 Jeep Wrangler JK 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 driveability 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 performance thermostatic bypass valve for the 2012-2018 Jeep Wrangler JK. Our performance thermostatic bypass valve features a fully-serviceable and removable thermostat. For those who live in hot climates, the thermostat can be replaced with the included bypass to allow full flow to the transmission cooler at all times. Speaking of flow, the Mishimoto performance thermostatic bypass provides increased flow over the stock valve to ensure your transmission cooler operates at peak efficiency, even with the thermostat installed. The included thermostat opens at the stock temperature of 160F (71C), but the valve can be customized to suit your needs with any available Mishimoto thermostat.The Mishimoto performance thermostatic bypass valve is a direct-fit and is made from durable aircraft-grade aluminum that's anodized to withstand even the harshest environments. Like all of our Jeep products, our performance thermostatic bypass valve is backed by our Mishimoto Lifetime Warranty.
- Durable CNC-machined billet aluminum design
- Direct-fit for 2012-2018 Jeep Wrangler JK
- Installs in less than 1 hour
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2007,2011-2014 | Chrysler | 300 | Base |
| 2005-2014 | Chrysler | 300 | C |
| 2012-2014 | Chrysler | 300 | C Luxury |
| 2005-2010 | Chrysler | 300 | C SRT8 |
| 2005-2012 | Chrysler | 300 | Limited |
| 2008-2009 | Chrysler | 300 | LX |
| 2010,2012-2014 | Chrysler | 300 | S |
| 2009 | Chrysler | 300 | Signature Series |
| 2012-2014 | Chrysler | 300 | SRT8 |
| 2013 | Chrysler | 300 | SRT8 Core |
| 2005-2010 | Chrysler | 300 | Touring |
| 2009-2014 | Dodge | Challenger | R/T |
| 2012 | Dodge | Challenger | R/T Classic |
| 2014 | Dodge | Challenger | Rallye Redline |
| 2009-2011 | Dodge | Challenger | SE |
| 2008-2014 | Dodge | Challenger | SRT8 |
| 2012-2014 | Dodge | Challenger | SXT |
| 2012 | Dodge | Challenger | SXT Plus |
| 2006-2007 | Dodge | Charger | Base |
| 2017-2018 | Dodge | Charger | Daytona |
| 2017-2018 | Dodge | Charger | Daytona 392 |
| 2006 | Dodge | Charger | Daytona R/T |
| 2018-2019 | Dodge | Charger | GT |
| 2018 | Dodge | Charger | GT Plus |
| 2006-2019 | Dodge | Charger | Pursuit |
| 2006-2019 | Dodge | Charger | R/T |
| 2017-2018 | Dodge | Charger | R/T 392 |
| 2015-2016 | Dodge | Charger | R/T Road & Track |
| 2015-2018 | Dodge | Charger | R/T Scat Pack |
| 2019 | Dodge | Charger | Scat Pack |
| 2006-2017 | Dodge | Charger | SE |
| 2015-2018 | Dodge | Charger | SRT 392 |
| 2015-2019 | Dodge | Charger | SRT Hellcat |
| 2006-2010,2012-2014 | Dodge | Charger | SRT8 |
| 2006-2010,2012-2019 | Dodge | Charger | SXT |
| 2012,2018 | Dodge | Charger | SXT Plus |
| 2018 | Dodge | Charger | SXT Plus Leather |
| 2011-2013 | Dodge | Durango | Citadel |
| 2011-2013 | Dodge | Durango | Crew |
| 2011 | Dodge | Durango | Express |
| 2011 | Dodge | Durango | Heat |
| 2011-2013 | Dodge | Durango | R/T |
| 2012-2013 | Dodge | Durango | Special Service |
| 2012-2013 | Dodge | Durango | SXT |
| 2005-2008 | Dodge | Magnum | R/T |
| 2005-2008 | Dodge | Magnum | SE |
| 2006-2008 | Dodge | Magnum | SRT8 |
| 2005-2008 | Dodge | Magnum | SXT |
| 2005 | Dodge | Magnum | SXT Special Edition |
| 2010-2011 | Dodge | Nitro | Detonator |
| 2010-2011 | Dodge | Nitro | Heat |
| 2007-2009 | Dodge | Nitro | R/T |
| 2009-2011 | Dodge | Nitro | SE |
| 2010-2011 | Dodge | Nitro | Shock |
| 2007-2009 | Dodge | Nitro | SLT |
| 2007-2008,2010-2011 | Dodge | Nitro | SXT |
| 2009-2010 | Jeep | Commander | Limited |
| 2009 | Jeep | Commander | Overland |
| 2009-2010 | Jeep | Commander | Sport |
| 2007-2013 | Jeep | Grand Cherokee | Laredo |
| 2007-2013 | Jeep | Grand Cherokee | Limited |
| 2007-2009,2011-2013 | Jeep | Grand Cherokee | Overland |
| 2012 | Jeep | Grand Cherokee | Overland Summit |
| 2007-2010,2012-2013 | Jeep | Grand Cherokee | SRT8 |
| 2012 | Jeep | Liberty | Jet |
| 2008,2011-2012 | Jeep | Liberty | Limited |
| 2011 | Jeep | Liberty | Renegade |
| 2008,2011-2012 | Jeep | Liberty | Sport |
| 2016 | Jeep | Wrangler | 75th Anniversary |
| 2012-2018 | Jeep | Wrangler | Rubicon |
| 2012-2017 | Jeep | Wrangler | Sahara |
| 2012-2018 | Jeep | Wrangler | Sport |
| 2016,2018 | Jeep | Wrangler | Sport S |
| 2016 | Jeep | Wrangler | Unlimited 75th Anniversary |
| 2018 | Jeep | Wrangler | Unlimited Moab |
| 2012-2018 | Jeep | Wrangler | Unlimited Rubicon |
| 2012-2018 | Jeep | Wrangler | Unlimited Sahara |
| 2012-2018 | Jeep | Wrangler | Unlimited Sport |
| 2016,2018 | Jeep | Wrangler | Unlimited Sport S |
| 2018 | Jeep | Wrangler JK | Rubicon |
| 2018 | Jeep | Wrangler JK | Sahara |
| 2018 | Jeep | Wrangler JK | Sport |
| 2018 | Jeep | Wrangler JK | Sport S |
| 2018 | Jeep | Wrangler JK | Unlimited Rubicon |
| 2018 | Jeep | Wrangler JK | Unlimited Sahara |
| 2018 | Jeep | Wrangler JK | Unlimited Sport |
| 2018 | Jeep | Wrangler JK | Unlimited Sport S |
| 2012-2020 | Ram | 1500 | Big Horn |
| 2012-2018 | Ram | 1500 | Express |
| 2013-2020 | Ram | 1500 | HFE |
| 2012-2020 | Ram | 1500 | Laramie |
| 2014-2015 | Ram | 1500 | Laramie Limited |
| 2012-2020 | Ram | 1500 | Laramie Longhorn |
| 2015-2020 | Ram | 1500 | Limited |
| 2014-2020 | Ram | 1500 | Lone Star |
| 2012-2016 | Ram | 1500 | Outdoorsman |
| 2013 | Ram | 1500 | R/T |
| 2015-2020 | Ram | 1500 | Rebel |
| 2012-2018 | Ram | 1500 | SLT |
| 2014-2018,2020 | Ram | 1500 | Special Service |
| 2012-2018 | Ram | 1500 | Sport |
| 2012 | Ram | 1500 | ST |
| 2012-2020 | Ram | 1500 | Tradesman |
| 2012 | Ram | 1500 | Tradesman HD |
| 2013 | Ram | 2500 | Big Horn |
| 2012-2013 | Ram | 2500 | Laramie |
| 2012-2013 | Ram | 2500 | Laramie Longhorn |
| 2013 | Ram | 2500 | Lone Star |
| 2012-2013 | Ram | 2500 | Outdoorsman |
| 2012-2013 | Ram | 2500 | Power Wagon |
| 2012-2013 | Ram | 2500 | SLT |
| 2012-2013 | Ram | 2500 | ST |
| 2013 | Ram | 2500 | Tradesman |
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
- Choosing a selection results in a full page refresh.
- Opens in a new window.