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Ford Performance 90 Degree Thermostat Housing (79-95 5.0L, 5.8L)

Item 50414
Market Price $70.23 You Save 12% ($8.08)
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$62.15 (each)

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    Features & Details

    • Direct Fit Replacement
    • Ideal for Restoration or Repair
    • 90 Degree Neck
    • Die-Cast Aluminum Construction
    • Genuine Ford Racing Part
    • Fits 1979-1995 5.0L and 5.8L V8 Mustangs
    Protect Your Engine. Replace your Mustangs old corroded Thermostat Housing with a direct fit replacement to improve your engine's ability to circulate coolant more efficiently. Whether your Pony is a dedicated daily driver or a weekend warrior, a brand new Ford Racing 90 degree Thermostat Housing will protect your engine from leaking and possibly over heating.

    Legendary Ford Racing Quality. When you're adding performance parts to your Pony, you can't go wrong by installing parts from the folks that know it best. Ford Racing's legendary quality ensures a perfect fit and years of hassle-free use.

    Application. This Ford Racing 90 Degree Thermostat Housing is a direct fit replacement for the 1979-1995 5.0L and 5.8L V8 Mustangs including the LX 5.0, GT and SVT Cobra models.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 Details

    MPN# M-8592-M90

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Water Neck Elbow
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Cobra - 93, 94, 95
    • Cobra R - 93, 95
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Other - 79, 80, 81, 82, 83, 84, 85, 86

    Fits 5.0L and 5.8L V8 Mustangs Only

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        Questions & Answers (3)

        3 Top Rated Questions

        does this thermostat housing has the provision drilled out for the temp sensor for the use of aftermarket fans?

        • The Ford Performance 90 Degree Thermostat Housing does not have a pre drilled and taped hole for the sensor.

        Helpful (2)

        What is used to plug the hole in the top of the housing?

        Does this include a replacement gasket for the housing?

        • Unfortunately, this will not come with the gasket. This package will only include the housing itself.

        Helpful (0)
        Post Your Question

          Customer Reviews (17) Write a Review

          Overall Rating 4.6

          out of 5 stars

          • 1/5

            April 22, 2019

            Low quality ford product

            This came new in box in worse condition than the leaking Mr Gasket I am replacing. I have no idea ford quality control was so lacking. This product should not have even made it out to a customer. Be prepared for a VERY rough finished product. You will not be happy with the quality


            Year: 1992 Submodel: LX

            Helpful (0)

          • 5/5

            December 01, 2018

            Worth the price

            The Ford Performance 90 Degree Thermostat Housing is a much higher quality piece than most of the aftermarket parts I looked at but the fit is where the real difference is. It fits like a glove unlike several if the aftermarket parts I tried and returned


            Year: 1995 Submodel: GT

            Helpful (5)

          • 5/5

            November 12, 2018

            High quality

            I tried multiple brands t-stat housings all of them leaked or ended up leaking. The Ford performance one here was perfect no leaks, than goodness. Worth the extra money for sure!


            Year: 1995 Submodel: Cobra

            Helpful (8)

          • 4/5

            September 07, 2018

            nice upgrade

            looks so much better now that I have replaced the old one that came on the car.


            Year: 1989 Submodel: LX

            Helpful (8)

          • 5/5

            June 04, 2018

            Best Housing

            I should have bought the Ford Performance t-stat housing in the beginning, instead of wasting my time and money on cheap aftermarket. I highly recommend this Thermostat Housing.


            Year: 1995 Submodel: GT

            Helpful (11)

          • 5/5

            June 19, 2017

            Fit well

            Fit was great. Used a motorcraft thermostat that fit great. Thermostat was inserted to housing and a little twist and it would seat perfect. Made install easy because thermostat would not fall out. I used a gasket from another supplier that was adhesive on one side so it lined up great. Hasn't leaked at all.


            Year: 1990 Submodel: GT

            Helpful (13)

          • 4/5

            May 23, 2017

            as good as new!

            this housing is better then whats available from aftermarket, just be prepared to do some cleanup, I'm having mine powder coated chrome and another powdered in wrinkle black to match each of my cars under hood treatment. I wish it came drilled and tapped as an option.


            Year: 1992 Submodel: LX

            Helpful (14)

          • 5/5

            April 06, 2017

            I URGE you to purchase this and not.....

            A knockoff brand. Don't even bother going the cheap budget route or you'll be sorry you did. Last summer I purchased an aftermarket piece out of desperation (Amazon) and needed it ASAP for track day. Well, it leaked. I couldn't see anything wrong with it until I put a straight edge to it. So, learn from my mistake and buy the Ford unit. When you open the box, you'll see the machining and quality are even better than what they used in the 80's. Want another tip? If it's a roller 5.0, toss the o-ring and don't use a gasket. Smear high-temp silicone on the intake side AND on the housing's side. Let it set for a day. Done. Hope this helps someone else.


            Year: 1988 Submodel: GT

            Helpful (15)

          • 5/5

            February 07, 2017

            Great Product

            Thermostat housing fits great. Great product and fast shipping.


            Year: 1994 Submodel: GT

            Helpful (14)

          • 5/5

            February 06, 2017

            Best Part Available

            Bought the inferior Mr Gasket with the pre-tapped plug first. It broke tightening it down. This piece needs tapped for a temp sensor but it tightens and seals better without breaking. Don't waste your time, buy this the first time.


            Year: 1990 Submodel: GT

            Helpful (15)

          • 5/5

            May 25, 2014


            Plain and simple it definitely looks made better than the ones from the local store parts and its perfect fit.


            Year: 1989 Submodel: GT El Paso, TX, USA

            Helpful (14)

          • 5/5

            July 24, 2013

            Ford Racing 90 Degree Thermostat Housing (79-95 5.0L, 5.8L)

            Great product and even better American Muscle had it in stock at a great price. Replaced my 1yr old Mr. Gasket cracked housing and bolted on this FRPP housing for a better application.


            Year: 1993 Submodel: GT Houston, TX, USA

            Helpful (14)

          • 5/5

            July 01, 2013

            great product

            Thermostat fit and we installed without a hitch. Obviously better than stock part.


            Year: 1995 Submodel: GT Harlingen, TX, USA

            Helpful (14)

          • 5/5

            May 01, 2013

            fit like a glove

            perfect fit for my 91GT. I suggest using this when time to replace your old housing.


            Year: 1991 Submodel: GT St. Louis, MO, USA

            Helpful (14)

          • 5/5

            March 24, 2013

            product was exactly what i needed

            My thermostat housing was excepionaly clean and defect free! I recommend your site to all my mustang buddies. Not only do they have all parts you need for your mustang project, but they have the best price. I will no longer be using eBay for a good deal. Hopefully I can clean out my laundry lists of parts I need.


            Year: 1986 Submodel: GT Deerfield, WI 53531, USA

            Helpful (16)

          • 5/5

            March 22, 2013

            Great replacement

            My 1988 LX had a cracked thermostat housing shooting coolant onto the engine and caused overheating. I ordered this ford racing replacement housing from American Muscle at a more then acceptable price and it arrived quickly. The housing was easy to install, looks and works great. I am very happy with the product and with my purchase experience from AM.


            Year: 1988 Submodel: Other Worcester, MA

            Helpful (14)

          • 5/5

            December 24, 2012

            no leaks

            My cheap AZ thermostat housing kept leaking (Made in China). These things are not easy to change out due to the location. So I came up off a few extra bucks for this one leaks. I installed it using only thermostat RTV sealer. I had to drill and tap it, however, for the fan switch. Tip- Use a vacuum pump to pump out all the coolant in the old housing before removing it and it will make much less of a mess. Great product.


            Year: 1991 Submodel: GT Michigan

            Helpful (14)

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