Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Part # MMTC-JK-TBVFF

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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

  • Eliminates failure-prone bypass valve

  • Installs in less than 1 hour

Fitment:
Chrysler 300 Base 2005 to 2007
Chrysler 300 Base 2011 to 2014
Chrysler 300 C 2005 to 2014
Chrysler 300 C Luxury 2012 to 2014
Chrysler 300 C SRT8 2005 to 2010
Chrysler 300 Limited 2005 to 2012
Chrysler 300 LX 2008 to 2009
Chrysler 300 S 2010
Chrysler 300 S 2012 to 2014
Chrysler 300 Signature Series 2009
Chrysler 300 SRT8 2012 to 2014
Chrysler 300 SRT8 Core 2013
Chrysler 300 Touring 2005 to 2010
Dodge Challenger R/T 2009 to 2014
Dodge Challenger R/T Classic 2012
Dodge Challenger Rallye Redline 2014
Dodge Challenger SE 2009 to 2011
Dodge Challenger SRT8 2008 to 2014
Dodge Challenger SXT 2012 to 2014
Dodge Challenger SXT Plus 2012
Dodge Charger Base 2006 to 2007
Dodge Charger Daytona 2017 to 2018
Dodge Charger Daytona 392 2017 to 2018
Dodge Charger Daytona R/T 2006
Dodge Charger GT 2018 to 2019
Dodge Charger GT Plus 2018
Dodge Charger Pursuit 2006 to 2019
Dodge Charger R/T 2006 to 2019
Dodge Charger R/T 392 2017 to 2018
Dodge Charger R/T Road & Track 2015 to 2016
Dodge Charger R/T Scat Pack 2015 to 2018
Dodge Charger Scat Pack 2019
Dodge Charger SE 2006 to 2017
Dodge Charger SRT 392 2015 to 2018
Dodge Charger SRT Hellcat 2015 to 2019
Dodge Charger SRT8 2006 to 2010
Dodge Charger SRT8 2012 to 2014
Dodge Charger SXT 2006 to 2010
Dodge Charger SXT 2012 to 2019
Dodge Charger SXT Plus 2012
Dodge Charger SXT Plus 2018
Dodge Charger SXT Plus Leather 2018
Dodge Durango Citadel 2011 to 2013
Dodge Durango Crew 2011 to 2013
Dodge Durango Express 2011
Dodge Durango Heat 2011
Dodge Durango R/T 2011 to 2013
Dodge Durango Special Service 2012 to 2013
Dodge Durango SXT 2012 to 2013
Dodge Magnum R/T 2005 to 2008
Dodge Magnum SE 2005 to 2008
Dodge Magnum SRT8 2006 to 2008
Dodge Magnum SXT 2005 to 2008
Dodge Magnum SXT Special Edition 2005
Dodge Nitro Detonator 2010 to 2011
Dodge Nitro Heat 2010 to 2011
Dodge Nitro R/T 2007 to 2009
Dodge Nitro SE 2009 to 2011
Dodge Nitro Shock 2010 to 2011
Dodge Nitro SLT 2007 to 2009
Dodge Nitro SXT 2007 to 2008
Dodge Nitro SXT 2010 to 2011
Jeep Commander Limited 2009 to 2010
Jeep Commander Overland 2009
Jeep Commander Sport 2009 to 2010
Jeep Grand Cherokee Laredo 2007 to 2013
Jeep Grand Cherokee Limited 2007 to 2013
Jeep Grand Cherokee Overland 2007 to 2009
Jeep Grand Cherokee Overland 2011 to 2013
Jeep Grand Cherokee Overland Summit 2012
Jeep Grand Cherokee SRT8 2007 to 2010
Jeep Grand Cherokee SRT8 2012 to 2013
Jeep Liberty Jet 2012
Jeep Liberty Limited 2008
Jeep Liberty Limited 2011 to 2012
Jeep Liberty Renegade 2011
Jeep Liberty Sport 2008
Jeep Liberty Sport 2011 to 2012
Jeep Wrangler 75th Anniversary 2016
Jeep Wrangler Rubicon 2012 to 2018
Jeep Wrangler Sahara 2012 to 2017
Jeep Wrangler Sport 2012 to 2018
Jeep Wrangler Sport S 2016
Jeep Wrangler Sport S 2018
Jeep Wrangler Unlimited 75th Anniversary 2016
Jeep Wrangler Unlimited Moab 2018
Jeep Wrangler Unlimited Rubicon 2012 to 2018
Jeep Wrangler Unlimited Sahara 2012 to 2018
Jeep Wrangler Unlimited Sport 2012 to 2018
Jeep Wrangler Unlimited Sport S 2016
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 2018
Ram 1500 Big Horn 2012 to 2020
Ram 1500 Express 2012 to 2018
Ram 1500 HFE 2013 to 2020
Ram 1500 Laramie 2012 to 2020
Ram 1500 Laramie Limited 2014 to 2015
Ram 1500 Laramie Longhorn 2012 to 2020
Ram 1500 Limited 2015 to 2020
Ram 1500 Lone Star 2014 to 2020
Ram 1500 Outdoorsman 2012 to 2016
Ram 1500 R/T 2013
Ram 1500 Rebel 2015 to 2020
Ram 1500 SLT 2012 to 2018
Ram 1500 Special Service 2014 to 2018
Ram 1500 Special Service 2020
Ram 1500 Sport 2012 to 2018
Ram 1500 ST 2012
Ram 1500 Tradesman 2012 to 2020
Ram 1500 Tradesman HD 2012
Ram 2500 Big Horn 2013
Ram 2500 Laramie 2012 to 2013
Ram 2500 Laramie Longhorn 2012 to 2013
Ram 2500 Lone Star 2013
Ram 2500 Outdoorsman 2012 to 2013
Ram 2500 Power Wagon 2012 to 2013
Ram 2500 SLT 2012 to 2013
Ram 2500 ST 2012 to 2013