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SpeedForm Oil Fill Breather; Chrome (86-95 5.0L)

Item 41032
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      Product Information

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


      • Great Custom Styling
      • Allows Engine to Breath Better
      • Bright Chrome Finish
      • Easy 5 Minute Installation
      • Fits 1986 to 1995 5.0L V8 Mustangs


      Great Custom Styling. Brighten up the dreary stock engine bay of your 5.0L V8 Mustang with a SpeedForm Chrome Oil Fill Breather that replaces the ugly stock black and yellow oil fill cap that original came on your Pony from Ford.

      In addition to adding a nice touch to your Mustangs engine compartment, this Oil Fill Breather cap will allow the engine to breathe better under high rpm conditions, especially if the car has a supercharger or a turbocharger.

      Superior Quality & Finish. Made from copper that is triple chrome plated, this Oil Fill Breather Cap is then hand polished to a brilliant shine to prevent pitting and tarnishing.

      Easy Install. The SpeedForm 5.0L Oil Fill Breather Cap has a nice chrome top and a rubber base that is designed to screw directly into the oil fill tube on the passenger's side valve cover. Go from boring stock to custom WOW in just minutes.

      This SpeedForm Chrome Oil Fill Breather Cap is specifically designed for use on the 1986 to 1995 Mustangs equipped with the 5.0L V8, including the 5.0 LX, GT, and SVT Cobra models.


      Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995

      SpeedForm 41032

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (43)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 43 customers

      Installation Time: Less than 1 Hour

      • September 16, 2019

        4 1995 Cobra - Franko

        Crank case ventilation

        Everything was great intill I seen how much it was for shipping,almost half of the price of the item, that's why 4****

        Helpful (0)
      • May 26, 2019

        2 1989 GT - JohnnyFox Installation Time: Less than 1 Hour


        Didn't see anyone else with a strut tower brace and this on the valve cover, I was able to get it on but when I started my car it would not hold idle. And the noise that was coming from it was not what I having the air tube off at the throttle body from the MAF meter...disappointed....

        Helpful (0)
      • January 17, 2019

        5 1989 LX - JustinB Installation Time: Less than 1 Hour

        Filler cap

        Looks great, made nice, be carful not to over tighten as the threaded part is only rubber so it can be stripped easily if not being careful.

        Helpful (3)
      • December 22, 2018

        5 1989 LX - JosephS

        Speedform chrome oil fill breather

        It was the first out of 3 to fit like it should ! Looks great ! As far as performance I have no idea yet !

        Helpful (3)
      • December 03, 2018

        5 1988 GT - AlexR Installation Time: Less than 1 Hour

        super easy install

        1 min. installatio, adds a little engine bay dress up!!

        Helpful (3)
      • August 08, 2018

        3 1990 GT - EthanH Installation Time: Less than 1 Hour

        Kinda cool

        It doesn't screw on as tightly as i would like but looks very nice, and it does its job

        Helpful (3)
      • August 02, 2018

        5 1993 GT - MarkS Installation Time: Less than 1 Hour

        breather cap kicks butt

        screws in nice and tight. Looks great. Does the job of letting those gasses out of my motor.

        Helpful (4)
      • April 24, 2018

        5 1993 LX - JuanS Installation Time: Less than 1 Hour

        Look good..

        I'm happy with the look..makes my car look good under the hood...

        Helpful (4)
      • April 15, 2018

        5 1992 LX - RodrigoM Installation Time: Less than 1 Hour

        good looking

        Good filter. Does what you need it to. Cheap and makes your bay look better.

        Helpful (4)
      • April 09, 2018

        5 1992 LX - JR74 Installation Time: Less than 1 Hour


        Great addition to dress up my Foxes engine compartment. Less than 5 mins to install and looks great.

        Helpful (4)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      My car would not hold idle after I installed this breather, is this normal? also lots of noise coming through this as well, is that normal too? ...89 5.0 automatic..Stock MAF meter with SR Cold air other add-ons

      • If you're having any issues with a part. Please contact us at 1 (888) 318-4347 or [email protected], and we'll be happy to assist you.

      Helpful (0)

      Does this screw on or push on?

      • This cap will screw directly into the oil fill tube on the passenger side valve cover.

      Helpful (0)

      Will this work with aftermarket ford racing valve covers? I need it to push into the valve cover itself.

      • Yes, this part is compatible with the Ford performance valve covers.

      Helpful (0)

      Can I use this with a working PCV without causing issues?

      • The SpeedForm Chrome Oil Fill Breather would not allow for a functioning PCV system, as the PCV relies on positive crankcase pressure, which you will use when using a breather. Additionally this will allow unmetered air into the engine, via the PCV, which can cause issues with cars equipped with a MAF Sensor.

      Helpful (0)

      What is the height of this product? I have a strut tower brace on my car and it runs right above the oil fill tube and Im not sure if this will fit under the bar or not?

      • It's not that high. Like an inch and a half from the original crankcase cap.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Oil Fill Breather

      Tech Specs

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