Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit
SKU: 89494795571

Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit

Sale price$149.39 Regular price$165.99
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Description

Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve KitThe 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

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
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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 89494795571

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joymom
Massapequa, US
★★★★★ 5
Great Value for a ball my dog loves!
Color: S6-muti-color
I wish these ball were in the subscription program! My dog gets sooo excited by the new ball, but her interest in things lasts for a few days. She kills the squeak within 11minutes, but the squeaker stays in place rather than becoming a chocking or swallow hazard, and she still loves to chew it. Next, we must throw the ball approximately 723 times the first day, possibly 496 times on day 2, and just 3- 4 on day 3, at which point she will chase the ball before hollering "it's over here if you need it," while she checks on the chipmunk den. We currently have 17 of these balls in our yard (because we have given several leftovers to a less discriminating doodle next door). These balls hold up really well, get her extremely active for the first couple of days, and are a much cheaper than doggie daycare (after an active morning with a new ball, she is happy to chew on it and sleep much of the day). I always have these on hand!
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Reviewed in the United States on November 22, 2025
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Michelle
Los Angeles, US
★★★★★ 4
Pieces chewed off
Color: white & green
My Aussiedoodle loves it. I throw it down the hallway, it bounces crazy, and he chases it. The only complaint is that he can't chew much of the ball part. So now I have to have it put away and brought out for special playtime.
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Reviewed in the United States on April 9, 2026
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Stacie☺
San Leandro, US
★★★★★ 5
Fun solid ball
Style: Recharges, Size: Medium, Style: Recharges, Size: Medium
Great squeaky balls! Glow doesn’t last for a long time, but they go far in the Chuck it. Solid ball, my dog doesn’t seem to destroy them.
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Reviewed in the United States on February 11, 2026
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Jennifer Gugala
Lowell, US
★★★★★ 5
Great ball!
Style: Recharges, Size: Medium
The dog loves chasing it! Walks around sqeeking it all the time. And bonus, I can see it in the middle of the floor when I get up in the middle of the night so I won't unknowing step on it.
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Reviewed in the United States on May 5, 2026
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Fearless
Pawtucket, US
★★★★★ 5
Lil boy's favorite ball
Style: Recharges, Size: Medium
The squeak gets my little boy every time. The glow factor is under par. I mainly get it because he also enjoys the brighter colors. All of the others be trying to get his ball. Good product just wish it would glow better because our park times are right around sunset.
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Reviewed in the United States on January 20, 2026

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