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Willpak Rear Window Louvers - Textured ABS - Hatchback (79-93 All)

19 Reviews
Our Price


  • Item #75004
  • MPN# 1004

  • Market Price $349.99
  • You Save 20% ($70.00)
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Product Videos Customer Photos
  • Cool Retro Styling
  • Durable Textured Black ABS Material
  • Paint-Able
  • Hinged
  • Simple Installation
  • Fits 1979-1993 Hatchback Mustangs
Retro Styling. Add cool retro styling to your 1979-1993 Hatchback Mustang with Rear Window Louvers. Rear Window Louvers were very popular on the muscle cars of the 60's and 70's and now you can have the same styling for your modern ride.

Paint-able Black Finish. Completed in an aggressive textured black finish, these high quality ABS rear window louvers can be installed as is, or be painted to match your Mustangs exterior.

Hinged. These Mustang Rear Window Louvers are hinged for easy access to the back window for cleaning and snow removal.

Simple Installation.. The louvers mount to your rear window using a combination of stainless steel hardware and 3M Automotive Adhesive Bonding Tape for a long lasting bond. They are hinged for easy access to the back window for cleaning.

Application. These ABS Rear Window Louvers are designed to fit all 1979 to 1993 Ford Mustang Hatchbacks including the LX, GT and SVT Cobra.

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

What's in the Box
Hardware included:
  • (1) Textured ABS 1 piece Window Louver
  • (2) Hinges
  • (2) Tie down plates
  • Hardware
  • Installation Instructions
Installation Info
Tech Specs
  • Material: ABS
  • Finish: Textured
  • Color: Black
  • Requires Painting: No
  • Paintable: Yes
  • Hinged: Yes
Will it fit my Mustang?
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93

Most Helpful Reviews

Window louvre

The instructions is pretty straight forward, but I had to do a little trimming around the louvre to get it to fit my 1987 mustang GT for a perfect fit

Helpful (1)


This louvers are super cool looking...Gives the stang THE ROAD WARRIOR LOOK...

Helpful (7)

Overall Rating 4.6 out of 5 stars
Read All 19 Reviews

Review & Install Video

Hey I’m Justin with, and I’m here to walk you through how to install the textured ABS plastic rear window louver, on your 79-93 hatchback Mustang. The louver itself is a great way to introduce a little of that old school muscle car styling to your Fox body. Unlike other aluminum options, this louver is made from a durable ABS plastic, so for one, it’s going to be a lot lighter than those other aluminum options, and that textured finish should give it a little more character as well. Another nice thing with this louver is that it does include two of these hinged mounting plates, that basically allow you to lift the louver up and clean the back window whenever it gets a little dirty. These mounting plates are to be used in conjunction with the non hinged mounting plates to ultimately secure the louver itself to the rear window. Alright, now that we know a little bit more about the louver, let’s get it installed. Alright as you can see we’ve got the louver laid into place for now, but this is actually the important first step, what you’re going to want to do, is mark all the holes on the rear window, just so you know where to clean using the alcohol prep pads, and then eventually with the 3M adhesion promoter. Alright, with all our holes marked, we’re going to pull the louver back off, and move onto our next step. Here we’re going to want to mount the mounting plates to the louver itself, we’re going to start with the two hinged mounting plates which go up top here. Keep in mind while doing this the louver does have to come back off the mounting plates so you don’t need to go crazy with tightening these nuts just yet. Now all our tie down plates are pretty much finger tight, at this point we’re going to go ahead and pull off the 3M backing, and that should be good for the louver. Alright with the louver fully prepped we’re going to move onto the next step which is cleaning the area really well wherever those mounting plates are going to go. I’m actually going to use one of our alcohol prep pads we had lying around the shop here, but if you don’t have anything like this at home, you can always use a rubbing alcohol or some other kind of cleaner. Alright with the rear window nice and clean, I’m going to grab our louver and gently set it into place.obviously this might be a little easier with two people but if you’re using just one person, go ahead and take your time, make sure to line it up the first time, and don’t put too much pressure on it, that way if you mess anything up, you can still move it around slightly. I’m putting a little pressure on the louver now but then I’m going to go ahead and remove these nuts, because what we’re going to do is we’re going to remove the louver itself, and put some really good pressure on those mounting plates with the louver removed, that way you can make sure the plates are on nice and tight. Now that the last nut is about to come off, I’m going to take the louver itself off, with the mounting plates still on the rear window, that way you can go round to all of the mounting plates, give them some nice firm pressure, and make sure they’re on there good. Now we’re going to reinstall the louver, with the louver back in place we’re going to reinstall the hardware now, and tighten everything up. With the two top plates installed it would be a great time to demonstrate the lift off feature, whenever you need to clean the back window, so simply just lift it up, do what you’ve got to do under there and you should be good to go, alright now let’s finish up the install with these last 2 nuts. That should do it, of course it would be a great idea to go back around and tighten everything up with a wrench, but overall you can expect to spend about an hour on this install from start to finish, that wraps up our install ad quick breakdown here of the textured ABS plastic rear window louver fitting all 79-93 hatchback Mustangs, and as always you can find it right here at

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Customer Reviews (19) Write a Review

Overall Rating 4.6

out of 5 stars

  • 3/5

    Installation Time: Weekend

    April 24, 2016

    Window louvre

    The instructions is pretty straight forward, but I had to do a little trimming around the louvre to get it to fit my 1987 mustang GT for a perfect fit


    Year: 1987 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3

    Helpful (1) (0)

  • 5/5

    August 03, 2009


    This louvers are super cool looking...Gives the stang THE ROAD WARRIOR LOOK...

    chris m

    Helpful (7) (0)

  • 5/5

    June 14, 2009

    91 louvers =]

    I love these, been looking for them for my 91 gt for awhile, gives it that toy look :D

    jamie hart

    Year: 1991 Model: GT

    Helpful (5) (0)

  • 3/5

    February 20, 2011

    86 mustang Louvers

    For 300 bucks (extremely over priced) they feel pretty cheap, they look good but feel like the very thing plastic is going to brake if you look at it too long. Not crazy about the adhesive installation. I have had them for a couple weeks and still can't put them on because its too cold out. Shipping was pretty spot on. Also would have liked some instructions included with the product. I set them on the back window and it does indeed make a nice look to the car. Can't wait for it to stay 60+ degrees some day for 24 hours to put them on.

    Matthew Wilson

    Year: 1986 Driving Style: Daily Driver

    Helpful (4) (1)

  • 5/5

    October 18, 2010

    89 gt

    A little pricey for the product but really cool! No installation directions but you'll figure it out. Took 30 minutes.


    Year: 1989 Model: GT Driving Style: Daily Driver

    Helpful (4) (1)

  • 4/5

    Installation Time: Less than 1 Hour

    December 07, 2011


    The product gives the "Look" that I was hoping for. My 1993 GT needed something to break up the wash of white color. The rear window louvers did the trick. Easy to install. Does not limit your rear vision at all.


    Year: 1993 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 10+ Drewsville,NH

    Helpful (2) (0)

  • 5/5

    August 15, 2011

    Rear window louvers for 1992 Mustang

    This product really dressed up my 92 Mustang.Easy installation and very prompt delivery from American Muscle.Excellent catalog to order from.

    Paul Francis

    Year: 1992 Model: Other Driving Style: Daily Driver

    Helpful (2) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    July 24, 2014


    I was very pleased with the appearance of these louvers right out of the box! I found them easy to install,and best of all- they really look great on my 91 GT. I sprayed mine "fusion" flat black to dull the look a touch, and ive gotten many comments on them. They are very light and no rattles! Thanks American Muscle,see you at the show in Maple Grove.


    Year: 1991 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 5+ York, PA, USA

    Helpful (1) (0)

  • 5/5

    March 07, 2012


    when you open the box you will think you got ripped off, but once you get it on you'll love it. Sets my foxbody apart from all the others on the street. GIves it that old school MachI look!!


    Year: 1987 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3

    Helpful (1) (0)

  • 5/5

    February 28, 2011

    Classic Retro Look

    I'm very picky on what goes on this GT. I always loved the 69/70 Boss with the rear louvers and I decided I wanted that look for my GT. I've owned this GT from day 1 and it has a little over 7k on the clock and is modified. I summited the Blue GT in the images for your review! Only negative it did rattle at high speed a little but a few velcro tabs on the sides fixed that problem!!

    Brent D. Ellison

    Year: 1990 Model: GT Driving Style: Show

    Helpful (2) (1)

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