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1966 mustang wiring harness

(2 reviews)
  • Designed to replace old, worn-out, or damaged wiring in vintage Mustangs
  • Ensures optimal electrical performance and reliability
  • Made with high-quality materials for durability and longevity
  • Features correct color-coded wires for easy identification and installation
  • Includes all necessary connectors for a complete installation
  • Ideal for restoration projects, maintaining the vehicle’s original look and feel
  • Helps to prevent potential electrical problems and safety hazards
  • Unique selling point: Specifically designed for 1966 Mustang models, ensuring a perfect fit and function
  • Provides a cost-effective solution compared to individual wire replacements.

Original price was: $950.00.Current price is: $900.00.

99.5% Positive feedback
  • Consistently receives highest buyers ratings
  • Ships items quickly
  • Has earned a track record of excellent service


About 1966 mustang wiring harness

The 1966 Mustang wiring harness is a crucial component designed specifically for 1965-1966 Ford Mustang models. Featuring 22 circuits with factory connectors already installed, this harness uses Ford wiring color codes for straightforward installation. It includes an auxiliary circuit with a 20 amp relay, offering compatibility with accessories such as fog lights or an electric fuel pump. Additionally, the unique covered micro-fuse block provides protection for the electrical system, ensuring reliable performance. Ideal for enthusiasts undertaking a restoration project or seeking to upgrade their Mustang’s electrical system, this wiring harness offers a seamless fit and comprehensive functionality for the iconic 1966 Mustang.

Key features of 1966 Ford Mustang wiring harness

The 1966 Mustang wiring harness is tailored specifically for 1965-1966 Ford Mustang models and boasts a set of key features that cater to the vehicle’s electrical system needs:

  1. Direct Fit for 1965-1966 Mustangs: Ensures compatibility and easy installation without the need for extensive modifications.

  2. 22 Circuits: Offers a wide range of circuits to accommodate various electrical components in the vehicle.

  3. Factory Connectors Installed: Simplifies the installation process as many factory connectors come pre-installed on the harness.

  4. Unique Covered Micro-Fuse Block: Provides protection for the electrical system components and ensures safety during operation.

  5. Auxiliary Circuit with 20 Amp Relay: Enables the addition of accessories like fog lights or an electric fuel pump, enhancing the functionality of the vehicle.

Compatibility of 1966 mustang wiring harness

  • Tailored for 1965-1966 Ford Mustang models
  • Ensures seamless fit and easy installation
  • No need for extensive modifications
  • Compatible with existing electrical components
  • Simplifies restoration or upgrade process
  • Optimizes performance of the vehicle’s electrical system

Specifications of 1966 mustang wiring harness

Updated ATC Fuse Panel and Fuses:
Modern ATC fuses are used throughout the system for a more reliable and accessible fuse protection.

  • GXL Wire:

    • High-quality, modern GXL wire is used throughout the harness for better heat and abrasion resistance. Each wire’s function is labeled every 3 to 5 inches to make installation easier.
  • Pre-built Dash Harness:

    • Comes with an exclusive gauge cluster disconnect system. This makes it compatible with both stock and aftermarket instruments.

  • Engine and Front Light Harness:

    • Features extra-long leads to facilitate custom routing and accommodate updated engine and transmission setups.
  • Six-Way Power Accessory Plug:

    • Provides a convenient power source for aftermarket accessories.
  • Rear Body Wiring:

    • Includes extra-long leads for custom routing, offering greater flexibility in installation.
  • 175 Amp Mega Fuse Kit:

    • Comes with a 6-gauge charge cable to support high-output charging systems and internally regulated alternators.
  • Original-Replacement Connectors, Terminals, and Lamp Sockets:

    • Ensures compatibility and easy integration with existing vehicle components.
  • Headlight Switch:

    • Includes a 26-amp internal circuit breaker for reliable performance.
    • Comes with a new floor dimmer switch as well.
  • Steering Column Adapter Kit:

    • Can be used to mate with either stock or aftermarket steering columns.
  • Replacement Ignition Switch:

    • Compatible with High Energy Ignition (HEI) and Electronic Fuel Injection (EFI) swaps.

Additional information


1965 mustang wiring harness, 1966 mustang wiring harness

2 reviews for 1966 mustang wiring harness

  1. Jack Harrison

    Bought a 1966 Mustang wiring harness from Find Auto Parts Online. Shipping was quick, and the harness was exactly as described. Installation was a breeze thanks to clear instructions included. Highly recommend

  2. John Smith

    I recently purchased a wiring harness for my ’66 Mustang from Find Auto Parts Online. The product arrived promptly and was well-packaged. The instructions were clear, which made installation straightforward. Overall, very satisfied with my purchase

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1966 mustang wiring harness
You're viewing: 1966 mustang wiring harness Original price was: $950.00.Current price is: $900.00.
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