Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

2012 - 2020 Ram 1500 Automatic Transmission Oil Cooler (Mishimoto) NEW

$ 90 .95

Product Notes

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.
Brand: Mishimoto
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info


Attribute Value
Install Difficulty 1
SellingPoint01 Direct-fit For 2012-2018 Jeep Wrangler Jk
SellingPoint02 Installs In Less Than 1 Hour
SellingPoint03 Eliminates Failure-prone Bypass Valve
SellingPoint04 Durable Cnc-machined Billet Aluminum Construction
SellingPoint05 Full-flow Bypass Allows The Transmission Cooler To Operate At Maximum Efficiency
SellingPoint06 Helps Extend Transmission Life And Prevent Overheating
SellingPoint07 Fits With Stock Transmission Cooler Piping, Requiring No Modification For Installation
SellingPoint08 Integrated Heat-sink Fins Provide Unique Styling And Added Heat Dissipation
SellingPoint09 Durable Anodized Finish
SellingPoint10 Mishimoto Lifetime Warranty
SellingPoint11 N/a
SellingPoint12 N/a
SellingPoint13 N/a
SellingPoint14 N/a
SellingPoint15 N/a
TechSpec Applications Fits Vehicles With 5-speed Automatic Transmission----chrysler 300 V6 (2.7l) 2007-2008--chrysler 300 V6 (3.5l) 2005-2010--chrysler 300 V6 (3.6l) 2011-2014--chrysler 300 V8 (5.7l) 2005-2013--chrysler 300 V8 (6.1l) 2007-2010--chrysler 300 V8 (6.4l) 2012--dod
TechSpec Chassis Codes Lx--ka--1500--2500--wk--wk2--kk--xk--jk
TechSpec Engine Codes Lh--pentastar--powertech--ekg--5.7 Hemi--6.1 Hemi--6.4 Hemi
TechSpec Includes (1) Cnc-machined Billet Aluminum Thermal Bypass Valve--mishimoto Lifetime Warranty
TechSpec Mishimoto Activation Temperature (F) N/a
TechSpec Note This Performance Thermostatic Bypass Valve Only Fits Vehicles With 5-speed Automatic Transmissions--mishimoto Does Not Recommend Customers In Cold Climates Install The Thermostat Bypass To Avoid Overcooling Of The Transmission Fluid
TechSpec OEM Activation Temperature (F) 160

Vehicle Fitment Guide

This part fits the following vehicles:

Ram 1 model (tapclick to expand)(tapclick to hide)
1500 2012-2020 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Big Horn Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Big Horn Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Big Horn Crew Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Big Horn Crew Cab Pickup 2014 - 2016 V6 3.6L 4WD Automatic
Big Horn Crew Cab Pickup 2014 V6 3.6L RWD Automatic
Big Horn Crew Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Big Horn Crew Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Big Horn Extended Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Big Horn Extended Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Big Horn Extended Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Big Horn Extended Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Big Horn Extended Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Big Horn Standard Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Big Horn Standard Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Big Horn Standard Cab Pickup 2014 - 2018 V8 5.7L RWD/4WD Automatic
Express Crew Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Express Crew Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
Express Extended Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Express Extended Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
Express Standard Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Express Standard Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
HFE Extended Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD Automatic
HFE Extended Cab Pickup 2016 - 2018 V6 3.0L DIESEL Turbo RWD Automatic
HFE Extended Cab Pickup 2016 V6 3.6L FLEX RWD Automatic
HFE Standard Cab Pickup 2016 V6 3.0L DIESEL Turbo RWD Automatic
HFE Standard Cab Pickup 2014 V8 5.7L RWD Automatic
HFE Standard Cab Pickup 2013 - 2016 V6 3.6L FLEX RWD Automatic
Hemi Sport Crew Cab Pickup 2020 V8 5.7L 4WD Automatic
Hemi Sport Standard Cab Pickup 2020 V8 5.7L 4WD Automatic
Laramie Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Laramie Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Laramie Crew Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Laramie Crew Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Laramie Crew Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Laramie Extended Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Laramie Extended Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Laramie Extended Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Laramie Extended Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Laramie Extended Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Laramie Limited Crew Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Laramie Limited Crew Cab Pickup 2014 - 2018 V8 5.7L RWD/4WD Automatic
Laramie Longhorn Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Laramie Longhorn Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Laramie Longhorn Crew Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Laramie Longhorn Crew Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Laramie Sport Crew Cab Pickup 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) 4WD Automatic
Laramie Sport Crew Cab Pickup 2019 V8 5.7L 4WD Automatic
Limited Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Limited Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Limited Crew Cab Pickup 2015 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Limited Crew Cab Pickup 2015 - 2020 V8 5.7L RWD/4WD Automatic
Lone Star Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Lone Star Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Lone Star Crew Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Lone Star Crew Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Lone Star Crew Cab Pickup 2014 - 2020 V8 5.7L RWD/4WD Automatic
Lone Star Extended Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Lone Star Extended Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Lone Star Extended Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Lone Star Extended Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Lone Star Extended Cab Pickup 2014 - 2020 V8 5.7L RWD/4WD Automatic
Lone Star Standard Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Lone Star Standard Cab Pickup 2014 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Lone Star Standard Cab Pickup 2014 - 2018 V8 5.7L RWD/4WD Automatic
Longhorn Crew Cab Pickup 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) 4WD Automatic
Longhorn Crew Cab Pickup 2019 V8 5.7L 4WD Automatic
Outdoorsman Crew Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Outdoorsman Crew Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Outdoorsman Crew Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
Outdoorsman Crew Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
Outdoorsman Extended Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Outdoorsman Extended Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Outdoorsman Extended Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
Outdoorsman Extended Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
Outdoorsman Standard Cab Pickup 2012 V8 4.7L FLEX RWD/4WD Automatic
Outdoorsman Standard Cab Pickup 2012 V8 5.7L RWD/4WD Automatic
R/T Standard Cab Pickup 2013 V8 5.7L RWD Automatic
Rebel Crew Cab Pickup 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Rebel Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Rebel Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Rebel Crew Cab Pickup 2015 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Rebel Crew Cab Pickup 2015 - 2020 V8 5.7L RWD/4WD Automatic
Rebel Extended Cab Pickup 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Rebel Extended Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Rebel Extended Cab Pickup 2019 - 2020 V8 5.7L RWD/4WD Automatic
Rebel Extended Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
SLT Crew Cab Pickup 2015 - 2016, 2020 V6 3.6L RWD/4WD Automatic
SLT Crew Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
SLT Crew Cab Pickup 2013 - 2019 V6 3.6L FLEX RWD/4WD Automatic
SLT Crew Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
SLT Crew Cab Pickup 2012 - 2018, 2020 V8 5.7L RWD/4WD Automatic
SLT Extended Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
SLT Extended Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
SLT Extended Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
SLT Extended Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
SLT Standard Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
SLT Standard Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
SLT Standard Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
SLT Standard Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
ST Crew Cab Pickup 2015 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
ST Crew Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
ST Crew Cab Pickup 2012 V6 3.7L RWD/4WD Automatic
ST Crew Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
ST Crew Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
ST Extended Cab Pickup 2015 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
ST Extended Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
ST Extended Cab Pickup 2012 V6 3.7L RWD/4WD Automatic
ST Extended Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
ST Extended Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
ST Standard Cab Pickup 2015 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
ST Standard Cab Pickup 2014 - 2016 V6 3.6L 4WD Automatic
ST Standard Cab Pickup 2014 - 2016, 2020 V6 3.6L RWD Automatic
ST Standard Cab Pickup 2014 V6 3.6L RWD/4WD Manual
ST Standard Cab Pickup 2013 - 2019 V6 3.6L FLEX RWD/4WD Automatic
ST Standard Cab Pickup 2013 V8 5.7L RWD Manual
ST Standard Cab Pickup 2012 - 2013 V6 3.7L RWD Automatic & Manual
ST Standard Cab Pickup 2012 V6 3.7L 4WD Automatic
ST Standard Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
ST Standard Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
SXT Crew Cab Pickup 2019 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
SXT Crew Cab Pickup 2019 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
SXT Crew Cab Pickup 2015 V6 3.0L DIESEL Turbo RWD/4WD Automatic
SXT Crew Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
SXT Crew Cab Pickup 2013 V8 4.7L FLEX RWD/4WD Automatic
SXT Crew Cab Pickup 2013 - 2019 V8 5.7L RWD/4WD Automatic
SXT Extended Cab Pickup 2019 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
SXT Extended Cab Pickup 2019 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
SXT Extended Cab Pickup 2015 V6 3.0L DIESEL Turbo RWD/4WD Automatic
SXT Extended Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
SXT Extended Cab Pickup 2013 V8 4.7L FLEX RWD/4WD Automatic
SXT Extended Cab Pickup 2013 - 2019 V8 5.7L RWD/4WD Automatic
SXT Standard Cab Pickup 2015 V6 3.0L DIESEL Turbo RWD/4WD Automatic
SXT Standard Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
SXT Standard Cab Pickup 2013 V8 4.7L FLEX RWD/4WD Automatic
SXT Standard Cab Pickup 2013 - 2018 V8 5.7L RWD/4WD Automatic
Special Service Crew Cab Pickup 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) 4WD Automatic
Special Service Crew Cab Pickup 2017 - 2018 V8 5.7L RWD Automatic
Special Service Crew Cab Pickup 2014 - 2018 V8 5.7L 4WD Automatic
Sport Crew Cab Pickup 2019 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Sport Crew Cab Pickup 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Sport Crew Cab Pickup 2017 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Sport Crew Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Sport Extended Cab Pickup 2019 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Sport Extended Cab Pickup 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Sport Extended Cab Pickup 2017 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Sport Extended Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Sport Standard Cab Pickup 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Sport Standard Cab Pickup 2017 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Sport Standard Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
Tradesman Crew Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Tradesman Crew Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Tradesman Crew Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Tradesman Crew Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Tradesman Crew Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
Tradesman Crew Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Tradesman Extended Cab Pickup 2019 - 2020 V6 3.6L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Tradesman Extended Cab Pickup 2019 - 2020 V8 5.7L MILD HYBRID EV-GAS (MHEV) RWD/4WD Automatic
Tradesman Extended Cab Pickup 2014 - 2018, 2020 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Tradesman Extended Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Tradesman Extended Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
Tradesman Extended Cab Pickup 2012 - 2020 V8 5.7L RWD/4WD Automatic
Tradesman Standard Cab Pickup 2014 - 2018 V6 3.0L DIESEL Turbo RWD/4WD Automatic
Tradesman Standard Cab Pickup 2013 - 2018 V6 3.6L FLEX RWD/4WD Automatic
Tradesman Standard Cab Pickup 2012 - 2013 V8 4.7L FLEX RWD/4WD Automatic
Tradesman Standard Cab Pickup 2012 - 2018 V8 5.7L RWD/4WD Automatic
Tradesman HD Standard Cab Pickup 2012 V8 5.7L RWD Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
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.

Fits Years: 2012 2013 2014 2015 2016 2017 2018 2019 2020

Fits Models: 1500

Go-Parts Garage · Featured Guide

Ram 1500 Automatic Transmission Oil Cooler Guide (2011-2020)

Keep your Ram's transmission safe by understanding common cooler failures and how to choose the right replacement part.

Read Full Guide

⚠️ Related Trouble Codes (OBD-II)

1 matching guide

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

×

Search by Vehicle

1
2
3
Added to cart · Part