OER 1971-73 Mustang Heater Box Assembly with Air Conditioning

Part Number: 18A542E-OER

OER 1971-73 Mustang Heater Box Assembly with Air Conditioning

Part Number: 18A542E-OER

Original price was: $470.29.Current price is: $408.95.

In Stock

( Inventory updated: 06/06/2026 )

Estimated ship date: 2-3 business days

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1971-73 Mustang Heater Box Assembly with Air Conditioning

Revitalize your classic 1971-73 Mustang with our premium Heater Box Assembly designed specifically for vehicles equipped with air conditioning. Tailored to match the original factory specifications, this replacement part not only restores functionality but also enhances the overall comfort of your driving experience.

Key Features and Benefits:

  • Original Style Polymer Construction: Crafted from high-quality polymer that mimics the original materials, ensuring a durable and authentic fit.
  • Accurate Dimensions: Engineered with precise measurements to guarantee a perfect fit in your 1971-73 Mustang, maintaining the integrity of your vehicle‚Äôs interior.
  • Complete Assembly: Includes all necessary components such as air control doors and flaps, heater core mount, fan chamber, and fresh air inlet for hassle-free installation.
  • Comprehensive Installation Kit: Comes with case clips and a full gasket set for an easy and secure installation process.
  • Compatible Vehicles: Specifically designed to work with 1971-1973 Mustangs and 1971-1973 Mercury Cougars with air conditioning.

Technical Specifications:

  • Part Number: 18A542E
  • Brand: OER

Fitment Information:

This Heater Box Assembly is compatible with the following models:

  • 1971 Ford Mustang
  • 1972 Ford Mustang
  • 1973 Ford Mustang
  • 1971 Mercury Cougar
  • 1972 Mercury Cougar
  • 1973 Mercury Cougar

Elevate your Mustang’s heating and cooling performance with this essential Heater Box Assembly. Don‚Äôt compromise on quality‚Äîchoose a part that matches the excellence of your 1971-73 Mustang. Order yours today and enjoy the difference in comfort and functionality!

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OER

Original Equipment Reproduction - OER - is the leading manufacturer and distributor of quality classic automotive restoration parts and accessories. OER products are meticulously manufactured to replicate the OEM appearance, quality and fit that meets or exceeds the original factory specifications.

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