CJ Classics Under Dash Wiring Harness With Premium Fuse Box and Relays USA Made 1966

CJ's Part Number:


  • Made In The USA!
  • Easy Installation
  • Plug And Play Installation
  • Original Color Coded Wiring

CJ Classics USA Made Under Dash Wiring Harness with a Premium Fuse Box and Relays for all 1966 Mustangs.

Tired of the headlights flickering on your 1966 Ford Mustang? Or perhaps you are apprehensive about the old and tattered wiring underneath your dash when going on an extended trip. We have a solution for both of these issues! This Under Dash Wiring Harness will replace these important wires under your dash.

Features and Benefits:
- Supplies Power To Instrument Panel Cluster Harness, Door Courtesy Light Harness And Wiper Motor
- Proper Molded Connectors
- Original Color Coded Wiring
- Includes Premium Fuse Box And Relays
- Plug And Play Installation

This wiring harness was designed to look like an OE harness but with a modern 12 circuit ATC fuse box and relays for improved performance and reliability. This premium Under Dash Wiring Harness has been made specifically for all 1966 Mustangs. It includes proper molded connectors and the correct color coded wires, making for a simple plug and play installation. In addition, there is room for expansion with spare hot and keyed terminals in the fuse box. This under dash wiring harness fits through your Mustang’s firewall behind the instrument cluster, supplying power to the instrument panel cluster harness, console feed harness, door courtesy light harness, wiper motor and other dash connections.

*This harness does NOT include the under dash A/C harness.

Don’t trust just any random brand when it comes to your classic First Generation Mustang—trust CJ Pony Parts to have all of the high-quality parts and pieces you’ll need from high-quality, dependable brands like CJ Classics! If you need brand-new, OEM-style direct-fit replacement parts for your vintage pony, than CJ Classics is right up your alley. Browse around and pick up everything you need for your restoration or repair project now from CJ’s!

Order this new CJ Classics USA Made Under Dash Wiring Harness with a Premium Fuse Box and Relays for your 1966 Mustang from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Mustang years:

Only registered users can ask/answer questions. Please sign in or create an account.
Write Your Own Review
Only registered users can write reviews. Please sign in or create an account.
Complete Your Package
Add to Cart