• Home
  • Products
    • Rear Window Louvers Coupes & Sedans
    • Rear Window Louvers Trucks & Vans
    • Side Window Louvers
    • Side Window Scoops
    • Hood Scoops
    • Quarter Panel Scoops
    • Chin Spoilers and Side Skirts
    • Paint Program
    • Special Order Parts
  • Order and Support
    • How to Order
    • About Us
    • Contact Us
    • Frequently asked Questions
    • Photo Gallery
    • Instruction Sheets
  • Dealer Services
Home Products 10558 — FORD / MERCURY Mustang
ALUMINUM CAR REAR WINDOW LOUVERS
Part # 10558

FORD / MERCURY Mustang

1974-1978
Fastback, 1-pc louver (Aluminum), requires assembly

Willpak Astra Hammond Aluminum Rear Window Louver – Part #10558

Elevate Your Style. Protect Your Interior. Command the Road.

Give your Mustang a bold, aggressive edge with the Willpak 10558 Aluminum Rear Window Louver. Engineered for a precision fit and a classic "muscle car" aesthetic, this louver is the ultimate upgrade for owners looking to stand out from the crowd while adding functional benefits to their daily drive.

Key Features:

  • Premium Aluminum Construction: Lightweight yet incredibly durable, our louvers are crafted from made in USA, high-grade aluminum to ensure they never rust and can withstand the harshest weather conditions.

  • Sleek Satin Black Finish: Comes in a ready-to-install Satin Black finish that looks great as-is or can be custom-painted to match your vehicle's factory color.

  • Superior Heat & UV Protection: Designed to block direct sunlight, these louvers significantly reduce interior cabin temperatures and prevent your upholstery and dashboard from fading.

  • Maintained Visibility: The angled slat design provides a sharp look from the outside while maintaining excellent rearward visibility from the driver’s seat.

  • Easy Maintenance: Features a lift-off design or high-quality hardware that allows for easy removal when you need to clean your rear window.

Specifications:

  • Part Number: 10558

  •  

  • Material: Aircraft-grade Aluminum

  • Color: Satin Black Painted

  • Installation: No-drill installation (uses high-bond 3M automotive adhesive and stainless steel mounting plates).

Why Choose Willpak? As the industry leader in window louvers, Willpak’s Astra Hammond line is synonymous with quality. Every louver is designed with a vehicle-specific fit to ensure a seamless, "factory-installed" appearance.

Transform your ride today with the timeless look of a Willpak Aluminum Louver.

Specifications
Part Number10558
CategoryALUMINUM CAR REAR WINDOW LOUVERS
VehicleFORD / MERCURY Mustang
Model Years1974-1978
Download Instruction Sheet
  • Download
Find Parts for Your Vehicle
Related Products
24566
Coupe, Smooth surface, must be painted before application to car, installs with 3M tape, Grille piece included.
FORD / MERCURY Mustang · 2010-2014
10004
Fastback, Open louvers, Textured ABS, installs under the trim
FORD / MERCURY Mustang · 1979-1986
10467
Small Louvers (10), Closed louvers, Smooth surface, must be painted before application to car, installs with 3M tape
FORD / MERCURY Mustang · 2005-2009
10566
Large Louvers(5), Closed louvers, Smooth surface, must be painted before application to car, installs with 3M tape
FORD / MERCURY Mustang · 2010-2014
Willpak Industries
2844469 Ontario Ltd. 8361 Highway 3 Dunnville, ON, Canada. N1A 2W4 Phone: 905 827-0224

Contact Us Today: 1 905-827-0224 [email protected]
Copyright © 2026 Willpak Industries Inc. All rights reserved.

We use cookies to enable essential functionality on our website, and analyze website traffic. By clicking Accept you consent to our use of cookies. Read about how we use cookies.

Your Cookie Settings

We use cookies to enable essential functionality on our website, and analyze website traffic. Read about how we use cookies.

Cookie Categories
Essential

These cookies are strictly necessary to provide you with services available through our websites. You cannot refuse these cookies without impacting how our websites function. You can block or delete them by changing your browser settings, as described under the heading "Managing cookies" in the Privacy and Cookies Policy.

Analytics

These cookies collect information that is used in aggregate form to help us understand how our websites are being used or how effective our marketing campaigns are.