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

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

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 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

      Ford Performance M-8592-M90

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Water Neck Elbow

      Tech Specs


      Customer Reviews (19)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 19 customers

      • February 15, 2020

        5 1994 GT - LaneR

        Performance thermostat housing

        The fitment was absolutely perfect used blue RTV to seal it no gasket and sealed perfectly no issues

        Helpful (1)
      • February 05, 2020

        5 1991 LX - Greybeard

        Well made

        Seems to be well made. OEM fitment, easy install. Stopped thermostat housing leak.

        Helpful (0)
      • April 22, 2019

        1 1992 LX - 35

        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

        Helpful (0)
      • December 01, 2018

        5 1995 GT - CharlesG

        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

        Helpful (5)
      • November 12, 2018

        5 1995 Cobra - monster95cobra

        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!

        Helpful (8)
      • September 07, 2018

        4 1989 LX - 30Koriginal

        nice upgrade

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

        Helpful (8)
      • June 04, 2018

        5 1995 GT - CharlesW

        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.

        Helpful (11)
      • June 19, 2017

        5 1990 GT - ChrisM

        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.

        Helpful (13)
      • May 23, 2017

        4 1992 LX - PatrickY

        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.

        Helpful (15)
      • April 06, 2017

        5 1988 GT - JonS

        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.

        Helpful (16)

      Questions & Answers (3 answers)

      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 (3)

      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

      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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