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Ford 8.8 in. Rear Axle Vent Bolt (86-14 All)

Item 383853
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    Features & Details

    • Rear Axle Vent Bolt
    • Equalizes Pressure without Leaking Fluid
    • Original Factory Equipment - OE Fit and Finish
    • Genuine Ford OEM Part - 4R3Z4022AA
    • Sold Individually
    • Fits 1986-2014 V8 and 2011-2014 V6 with 8.8" Solid Axle
    Direct Fit Replacement. Replace that old broken or seeping Rear Axle Vent Bolt on your solid axle equipped Mustang with a brand new genuine Ford replacement part for leak free performance.

    Rear Axle Vent Bolt. A Rear Axle Vent Bolt is engineered to equalize the air pressure in your Mustangs 8.8” solid rear end housing. It safely allows air to escape without any messy fluid leaks, and at the same time prevents trash and debris from entering back into the system.

    Genuine Ford Part. This genuine Ford Rear Axle Vent Bolt is manufactured from OEM quality steel to the original factory specifications to ensure a perfect fit and reliable leak-free operation. Genuine Ford OEM part - 4R3Z4022AA.

    Application. This genuine Ford Rear Axle Vent Bolt is designed to be a direct fit replacement for all 1986-2014 V8 and 2011-2014 V6 Mustangs that are equipped with a 8.8in solid rear axle. It will not fit the 1999-2004 IRS equipped SVT Cobra model.

    Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

    MPN# 4R3Z4022AA

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

    What's in the Box
    • (1) Rear Axle Vent Bolt
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
    • Cobra R - 93, 95, 00
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14

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          Customer Reviews (25) Write a Review

          Overall Rating 4.7

          out of 5 stars




          • 5/5

            August 30, 2019

            Fixed my leak

            Easy install on rear end. Fixed my leaky one! This is what you need of yours is leaking!

            CodyKyle210

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            May 24, 2019

            Easy to install

            Have oil leak in the rear diff area, was a little bit scary but found what issue in vent bolt. Ordered this one, few days for waiting, few minutes to replace. Issue fixed

            Pavel

            Year: 2011 Submodel: V6

            Helpful (0)

          • 5/5

            April 29, 2019

            Axle vent bolt

            Works great and perfect fit because it's a factory Ford part!

            13stang

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            April 29, 2019

            Rear axel vent bolt

            Great product. The origional got clogged and AM was about the only place i could find a new one. The dealer didnt even have one.

            JeffH

            Year: 2011 Submodel: GT

            Helpful (0)

          • 5/5

            November 29, 2018

            perfect

            perfect finishing touch after gears and lsd .Fit like factory. for the price you cant go wrong

            CarlosS

            Year: 2002 Submodel: GT

            Helpful (3)

          • 5/5

            October 21, 2018

            07 gt

            Fits and works good on the ford gt500 differential cover

            JeffS

            Year: 2007 Submodel: GT

            Helpful (2)

          • 5/5

            July 04, 2018

            Axle breather

            Fixed my issue with my original leaking breather. Cheap to purchase and only takes about 10 minutes to install. Highly recommend if your breather is leaking.

            Mike1109

            Year: 2014 Submodel: GT

            Helpful (4)

          • 5/5

            April 18, 2018

            Easy fix, easy install

            Easy removal, and easy install. You may not necessarily need this part. I replaced mine but I learned that it was the dealership who overfilled my rear diff

            JosephM

            Year: 2014 Submodel: GT

            Helpful (6)

          • 5/5

            March 25, 2018

            Small but important

            Fits as intended and works like a charm. The old one leaked, but there's no issues with this one.

            1Jack

            Year: 2010 Submodel: GT

            Helpful (4)

          • 1/5

            February 06, 2018

            Still leaking

            I replaced the original vent with this one, no difference at all. Still seaping the same as the original did. Don’t waste 15 bucks on this.

            dziba191

            Year: 2014 Submodel: GT

            Helpful (6)

          • 5/5

            December 18, 2017

            Great product!

            I don't know why they don't just install these on all mustangs from the factory!

            Robert

            Year: 2012 Submodel: GT

            Helpful (4)

          • 5/5

            August 04, 2017

            Replace them...

            if you are doing a rear end...these may get plugged in the process...replace them and you might just save $1000's that you just put into the rear end...

            AdamH

            Year: 2007 Submodel: GT

            Helpful (4)

          • 5/5

            July 25, 2017

            Small but necessary

            This was just what I needed to complete rear end build. Fits and functions perfectly!

            AlH

            Year: 1988 Submodel: GT

            Helpful (5)

          • 5/5

            June 13, 2017

            Quality Looks Good

            I bought it because I assumed the leak was coming from the vent tube, but when I went to install it the leak was at my differential pinion flange. But I digress. Based on how it looks I think this would function very well, no plastic to become brittle just good old fashion metal. Very solid looking piece that looks to be of good quality.

            Hoose

            Year: 2013 Submodel: GT

            Helpful (4)

          • 3/5

            March 31, 2017

            Do you really need a new one?

            Like everyone else, there was fluid blowing out my axle vent. Hey, not knowing any better I crawl under there sure enough the thing has a loose cap. I’m thinking it was broken. Nope, I was just being stupid in public. That’s the way they are make them. They just crimp a cap on top of a bolt with a hole down the center. Save yourself the $16 clean the bugger with some brake clean and put it back in the hole (For what it is it's kind of a rip). Better yet go buy a new Ford Racing cover for $80 bucks and take the plug and put it in the axle hole and put this on top of the differential cover. It will never leak again.

            happyjackson

            Year: 2013 Submodel: GT

            Helpful (7)

          • 5/5

            March 27, 2017

            I now have duel Vents

            The vent bolt allows me to connect the two vents no more oil spots

            FredS

            Year: 2005 Submodel: GT

            Helpful (4)

          • 5/5

            March 25, 2017

            Leaking axle vent

            Very good product ford product fixed the problem easy install

            fordmaniac

            Year: 2011 Submodel: GT

            Helpful (4)

          • 5/5

            February 08, 2017

            Quick and Easy Install

            The Vent Bolt was easily replaced once the car was on jack stands and the rear axle hanging.

            JamesA

            Year: 2007 Submodel: GT

            Helpful (6)

          • 5/5

            February 06, 2017

            For anyone with a leaking or back axle vent

            Direct replace Ford OEM part install was simple and fast and fixed my leaking axle valve

            RashadR

            Year: 2012 Submodel: GT

            Helpful (5)

          • 4/5

            July 07, 2016

            A Good Quality OEM Replacement

            This valve is an equivalent quality as the OEM piece and it screws right on.

            BABarakas

            Year: 2001 Submodel: Bullitt

            Helpful (5)

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