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 160°F (71°C), 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.

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
2008-2010	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
2019	Ram	1500 Classic	Big Horn
2019	Ram	1500 Classic	Express
2019	Ram	1500 Classic	Lone Star
2019	Ram	1500 Classic	Special Service
2019	Ram	1500 Classic	Tradesman
2019	Ram	1500 Classic	Warlock
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
2013	Ram	3500	Big Horn
2013	Ram	3500	Laramie
2013	Ram	3500	Laramie Longhorn
2013	Ram	3500	Lone Star
2013	Ram	3500	SLT
2013	Ram	3500	ST
2013	Ram	3500	Tradesman