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Mishimoto Racing Thermostat (96-04 V8)

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Market Price $57.99 You Save 14% ($8.04)
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$49.95

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  • Item 80224

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    Features & Details

    • Keeps Engine Running Cooler
    • Great for Modified Mustangs
    • Fits 1996 to 2004 4.6 GT, Bullitt, Mach 1 and Cobra
    Run Cooler. The Mishimoto Ford Mustang Racing thermostat promotes greater cooling efficiency throughout your Pony's engine and significantly lowers high engine temperatures produced by modified and forced induction applications.

    More Power. The Mishimoto racing thermostat opens up at a lower temperature 154° fahrenheit (68 C) than the standard OEM factory thermostat 190° fahrenheit (88 C) allowing the coolant to flow through the engine block sooner reducing and maintaining cooler engine temperatures helping to produce more power.

    Application. This Mishimoto Racing Thermostat is specifically designed for use on the 1996 to 2004 Mustangs equipped with 4.6L V8 engine, including the GT, Bullitt, Mach 1, and SVT Cobra.

    Mishimoto's "No Questions Asked" Limited Lifetime Warranty

    Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

    MPN# MMTS-MUS-96

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Thermostat
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (3) Submit Your Photo

      View All 3 Photos

        Questions & Answers (6)

        5 Top Rated Questions

        Does the gasket need to be removed for installation? If not, the thermostat sits on top of the manifold and not inside, as needed?

        • If you check out the installation guide on the product page under the Installation Info section, you will see that there is a new O-ring with the thermostat that will sit in the manifold.

        Helpful (1)

        I have a 97 cobra that I'm looking to help make it run a little cooler. I read in a magazine from Sean hyland that 4.6L DOHC like to run around 170-180 degrees. If this is a 160 degree thermostat will it make it run too cool to where a tune will be needed? I'm afraid it will keep the engine too cool when you're driving and keep it in it's "warm-up" mode.

        • The Mishimoto Racing Thermostat will not require a tune, however your best benefits will come when using a tune to modify parameters such as fan on/off times to match the new cooler thermostat.

        Helpful (0)

        Will it fit a 2001 v6

        • The Mishimoto Racing Thermostat will not fit a 2001 V6. It will only fit 96-04 V8 Mustangs

        Helpful (0)

        How does this thermostat effect the heating system in the winter time, will the interior still get as hot?

        • The car will still heat up to the full operating temperature, however, if the thermostat is open, and a high volume of air is passing through the radiator, the coolant flowing through the heater core will be at a lower temperature. If a lesser amount of air is passing the radiator, the heat in the coolant will not dissipate as easy, and the coolant will be a higher temperature.

        Helpful (0)

        will this thermostat cause issues during cold weather operation?

        • No it would work fine

        Helpful (0)
        Post Your Question
        1 More Question
        Is this a fail-safe thermostat? If the thermostat fails it does it in the open position rather then closed. 1 answer

          Customer Reviews (48) Write a Review

          Overall Rating 4.6

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Performance Gain 4.439024 4.4
          • Fit 4.390244 4.4



          • 5/5

            Installation Time: Less than 1 Hour

            June 06, 2019

            Keeping cool

            well made easy to install perfect fit and drops the temp by a few clicks!

            IgnacioD

            Year: 2004 Submodel: Mach 1

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            November 30, 2018

            Perfect for upgrading or replacing OEM

            The thermostat was super easy to install and I’ve been having overheating issues in the past so I upgraded most my cooling system. When I opened the box it came with the thermostat and gasket. The gasket looks kinda weird and didn’t really set well within the housing, so I just threw the gasket to the side and used a basic O-ring gasket and it’s perfect. The moment the car gets to operating temps and I start driving a bit harder the temp gauge will raise a bit and then just drop to right above the O. Loving it.

            MartinM

            Year: 1997 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            November 23, 2018

            Worked great

            Will of course require setting fan kick on temp lower

            wrench002

            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            September 25, 2018

            Mishimoto Racing thermostat 154°

            Works grat for the price. Was having trouble with overheating with my newly bord block was getting up to 230° now it sits at 190°, 200° if I run it hard.

            Ben

            Year: 1998 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            September 18, 2018

            Not an exact fit for the Cobra

            If you want to use this on the Cobra you have to modify the provided gasket. I used a razor blade, but in the end it worked and dropped the coolant temp as expected.

            Stormi

            Year: 2003 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            September 10, 2018

            Running cool

            Installed this with a Edelbrock water pump and a mishimoto radiator electric fan almost never runs Awesome stuff to keep you running cool.

            PaulB

            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            July 11, 2018

            Help run cooler

            Bought it to use in my 2003 Mach1 4.6 DOHC powered Factory Five roadster. It opens at a cooler 155 degF.

            Brett

            Year: 2003 Submodel: Mach 1

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            May 17, 2018

            cooling

            this and an eldebrock water pump brought my heat back from red to "m". between the two with no other parts, doing he job.

            brianl

            Year: 1998 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 15, 2018

            Staying cool

            Staying cool helps sitting in florida traffic . Reused the old gasket, like most on here

            Thomas

            Year: 1996 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            January 07, 2018

            Mishimoto Racing Thermostat

            Works like a clock!, yet another good purchase from AM.

            Grant

            Year: 2004 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            December 11, 2017

            Mishimoto Racing Thermostat

            very nice made thermostat fit nice would buy agian

            la4

            Year: 1994 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            December 02, 2017

            Replace original

            Fit perfectly in top of housing good seal no leaks..tku a.m.

            mangohead

            Year: 2002 Submodel: V6

            Helpful (0)

          • 5/5

            September 16, 2017

            Runs a lot cooler

            Did the thermostat while upgrading the cooling system. Recommend stopping and grabbing a new o ring because the one that comes does not fit. Runs a lot cooler now.

            flimflam1987

            Year: 1997 Submodel: Cobra

            Helpful (3)

          • 5/5

            August 18, 2017

            Great part

            Really satisfied with the thermostat highly recommended it

            VicenteR

            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            May 24, 2017

            Excellent, keeps you cooler!

            Nice Quality Thermostat. Comes with an odd seal though, and I was not sure how to make it work. However, I bought the Ford Thermostat O-ring and it worked perfectly. Installation was not hard, but a little tougher on a 99 Cobra because the thermosat is hanging by hoses at the bottom of the radiator, right side. After draining the coolant from the radiator and expansion tank. I decided to forgo the drain plugs in the block (hard to get to) and just drain out where the thermostate sits. There was still a lot in the hoses. Lossened the bolts on the thermostat housing and drained all I could. When I pulled the thermostat out it gushed a lot of coolant so have a catch pan under it.

            JoeTerps

            Year: 1999 Submodel: Cobra

            Helpful (2)

          • 5/5

            Installation Time: Less than 1 Hour

            February 17, 2017

            Mishimoto racing thermostat

            it's a great product that fit perfectly and does what it says, keeping the coolant flowing to keep those temperatures down when your putting your car under a lot of stress. thanks American muscle for having great products!

            CorderoJay

            Year: 2003 Submodel: Mach 1

            Helpful (1)

          • 4/5

            Installation Time: Less than 1 Hour

            November 25, 2016

            Runs cooler but had to reuse old gasket

            Happy with the reduced temperature. Disapointed that the O-ring is no where near the size needed to fit. I ended up re-using the old gasket against my better judgement but I needed the temps to come down.

            Jysun

            Year: 1997 Submodel: GT

            Helpful (1)

          • 5/5

            October 13, 2016

            The Coolest Stang Around

            I have to say that I am very pleased with the Mishimoto thermostat. It works just like they said that it would. My 1998 mustang gt idle at normal temperature range but when I begin driving it drops my temperature down in a very safe zone. I needed a thermostat that would allow my stang to run cooler since my spark and timing is advanced. And it doesn't interfere with my heat at all. Once again a great product and brand from American Muscle. Highly recommended..

            Roni

            Year: 1998 Submodel: GT

            Helpful (1)

          • 1/5

            August 27, 2016

            No difference

            I installed this on a 98 GT and I see no change in engine temperature at all. The engine is as hot as it ever was. I don't know how this product can have so many good reviews.. It's a waste of money.

            blackstang

            Year: 1998 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            June 27, 2016

            2003 ford mustang gt vortec v3 10 psi

            Works great... lowers running temp = better hp happy car happy mustang owner

            Brian

            Year: 2003 Submodel: GT

            Helpful (1)

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