Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 From Rovos! Enter daily!

Reische Performance Thermostat - 170 Degree (07-14 GT500)

Market Price $71.99 You Save 17% ($11.99)
Our Price


FREE Shipping

  • Item 397319

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Custom Built from OEM Parts
    • Includes OEM diaphragm and Bypass Control
    • Ensures Maximum Cooling Efficiency
    • Direct Replacement Installation
    • Recommended for Tuned Motors, but Tuning Not Required
    • Protects Motor from Damaging Heat
    • Cooler Temps for More Timing Advancement
    • Fits 2007-2014 GT500 Mustangs
    Dissipate Heat.Your forced induction motor already puts out plenty of heat from that large blower. Adding more performance to your Shelby will also add even more heat. The Reische Performance Thermostat operates at 170 degrees compared to the 180 to 195 degrees of your OEM unit. This lower temperature thermostat helps protect your GT500 from engine wear and makes a great investment in engine life and incoming air temperatures, which can also adds more performance.

    Tune it? Cool it. If you're advancing timing on your motor or operating a custom tune, a lower temperature thermostat is a critical investment in engine life. Lower temperatures allow for safer timing advancement and tuning without causing engine wear or detonation, which can ruin your motor.

    Made to Fit Mustangs. Unlike cheaper, generic units that are "universal", each Reische Performance Thermostat is made using the same diaphragm and bypass control as OEM thermostats. Each unit is modified by hand with U.S made parts to ensure they run at the right temperature for your Mustang.

    All-Weather Capable. Running a lower temperature thermostat has been said to reduce performance – but with the Reische's consistent operation and 170-degree "sweet spot", no drivers have reported any loss of power or MPGs in colder weather.

    Application. The 170-Degree Reische Performance Thermostat is specifically designed as a direct replacement-upgrade for 2007-2014 GT500 Mustangs.

    Tuning Note. While no tuning is required for installation, we do highly recommend lowering your fan settings for more consistent coolant temperatures.

    Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 Details

    MPN# Ford-G5

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Thermostat
    • (1) Gasket
    • Coolant Ratio/Additive Recommendations
    Installation Info
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos

    More Products You Might Like

    Q & A

    No questions about this product yet.

    Ask the First Question

    Recommended For You

    Customer Reviews (11) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Less than 1 Hour

    Installation Cost:0-$100

    • Performance Gain 4.090909 4.1
    • Fit 5 5

    • 4/5

      Installation Time: Less than 1 Hour

      February 19, 2019

      Great upgrade

      This thermostat works well keeping temps down in traffic and when making some hard pulls. This is the second one I've replaced. First one got stuck closed on me after like 5 months. Kept over heating my car. But new one has been working well. I recommend if you have mods and also requires a tune to take full advantage of this thermostat.


      Year: 2012 Submodel: GT500

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      January 16, 2019

      Great product

      Installed on my gt500. Driving around los Angelas in 100 degree weather was causing my car to heat up until the ac shut off. With this thermostat it doesn't do that anymore. Great buy and highly recommend it. Ps also have a hand held tuner and turned my fans to kick on at 170 to match.


      Year: 2008 Submodel: GT500

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      November 03, 2018

      Best price on the web

      It's only a few bucks cheaper, but this is the cheapest you'll find it! Easy to install and gasket is leak free. Temps definitely stay down, and included instructions give specific temps to tune your fans for best results.


      Year: 1995 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      October 31, 2018

      Consider getting a tune afterwards

      While this will definitely knock down those temperatures, you need to get a tune in order for the radiator fans to kick on at the new lower temperature.


      Year: 2011 Submodel: GT500

      Helpful (8)

    • 5/5

      September 10, 2018

      Cool temperature.

      Wonder full product.Keeps the temperature down on this big engines.This thermostat is ease to install perfect for this 2013-2014 Shelby GT500.


      Year: 2013 Submodel: GT500

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      July 06, 2018

      Great part

      Definitely running cooler in this SC heat, super easy install.


      Year: 2008 Submodel: GT500

      Helpful (10)

    • 5/5

      Installation Time: Less than 1 Hour

      June 01, 2018

      Reische 170 T-Stat

      This has got to be the easiest way to help with performance by far. Seriously, after siphoning the coolant out of the degas tank, I had a couple of drips when I removed the 2 T-Stat Housing bolts and removed the stock 192 degree stat. Put the new 170 star in. Snuggled the two bolts, added fresh VC-3DIL coolant and done. Awesome mod!


      Year: 2013 Submodel: GT500

      Helpful (10)

    • 5/5

      Installation Time: Less than 1 Hour

      October 12, 2017

      170 Thermostat

      Immediate difference, followed by a tune revision for lower fan settings keeps temps in check big time. Next up heat exchanger! Took 5 mins Max !


      Year: 2013 Submodel: GT500

      Helpful (11)

    • 5/5

      Installation Time: Less than 1 Hour

      August 09, 2017

      Simple, Easy must have on s/c

      Extremely easy to install had it done in less than 10 minutes. Seems a little cooler, works best when tuned.


      Year: 2010 Submodel: GT500

      Helpful (10)

    • 3/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      June 01, 2017

      installed by garage

      Its a thermostat.. I notice no performance or cooling change from a factory part..


      Year: 2012 Submodel: GT500

      Helpful (9)

    • 5/5

      Installation Time: Less than 1 Hour

      April 26, 2017

      it WORKS x-4 shows much cooler temps, very pleased

      Instant drop in analog gauge but hooked up my x-4 and did some comparison readings and this will help with heat soak big time. A must if you're running a tune


      Year: 2007 Submodel: GT500

      Helpful (11)

    Related Mustang Categories