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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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For Your Every Summer RSVP, with Code: SUMMER15
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 |
| 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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 4
PERFECT LINING
Color: Coffee
**4/28/2026** Purchased the Coffee Color
I am OCD about my bag lining. The lining in this bag is perfect for me. Stitched directly to the bag how purse linings should be.
The color is gorgeous and the bag stands up well while the leather is soft. For the size it has a lot of room. Enough for everything I carry, (including my S7 tablet. Tight fit w my case on, but it fits), with room to grow.
**4** stars because the adjustable handle has limitations. Sometimes I like my bag hanging to my hip, other times I like under my arm. This will NOT adjust higher than my hip and I am 5`2. I have been looking for a long time for a satchel type purse that ticks everything I look for in a purse, and other than the adjustable strap, this big is it.
Will update as time goes by but for now I would recommend this bag.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
It's leather and smells good
Color: Brown
It's a little smaller then in the picture, but it's of good quality.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Beautiful bag!
Color: Brown
Exactly as pictured. The color is beautiful and rich. The size is perfect, more spacious inside than it looks.
Quality in stitching is also very nice. Steel zippers which I love.
I use this as a daily bag, looks
Durable and has feet so should help make it last.
Also comes with a dust bag.
Great purchase!
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Reviewed in the United States on September 22, 2025
★★★★★ 5
LEATHER BAG
Color: Brown
I absolutely love the bag. Excellent quality. Exactly what I was looking for!!
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Purse
Color: Coffee
Cannot use purse. To many pockets on inside. Hard to get wallet in and out of.
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Reviewed in the United States on February 18, 2026