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

Market Price $18.99 You Save 16% ($3.00)
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  • Item 383853
  • MPN# 4R3Z4022AA

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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

    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 (18) Write a Review

    Overall Rating 4.6

    out of 5 stars




    • 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 (1)

    • 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 (1)

    • 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 (2)

    • 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 (1)

    • 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 (2)

    • 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 (2)

    • 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 (1)

    • 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 (3)

    • 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 (2)

    • 5/5

      March 25, 2017

      Leaking axle vent

      Very good product ford product fixed the problem easy install

      fordmaniac

      Year: 2011 Submodel: GT

      Helpful (2)

    • 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 (4)

    • 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 (3)

    • 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 (3)

    • 5/5

      May 31, 2016

      Replaces hose vent.

      All metal vent replaces troublesome OEM Ford hose and plastic vent parts.

      Fastrogue

      Year: 2011 Submodel: GT

      Helpful (3)

    • 5/5

      September 21, 2015

      tuff find

      A M has them in stock, not your dealer! I was surprised that my dealer was having trouble getting this. Thank You A M!!!!

      Blackmambo

      Year: 2012 Submodel: Other

      Helpful (3)

    • 5/5

      September 18, 2015

      Axle vent

      This vent worked just as it is supposed to work. It is a perfect replacement for the stock factory vent.

      Vikingjr

      Year: 2000 Submodel: GT Toms River, Nj

      Helpful (3)

    • 5/5

      August 25, 2015

      Great Part

      It worked exactly how it was suppose to. The part Fit Perfectly.

      JMech

      Year: 1999 Submodel: V6 Depew, NY

      Helpful (3)

    • 5/5

      June 05, 2015

      Great product

      Installed this new axle vent since my old one was leaking badly, solved all issues!

      Speed

      Year: 2007 Submodel: GT California

      Helpful (3)

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