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22 Circuit Direct Fit 1969-70 Mustang Chassis Harness Part No 20122


This harness includes circuits for:

  1. A/C & Heat
  2. Accessory / Cigarette Lighter
  3. Accessory Relay
  4. Backup Lights
  5. Brake Lights
  6. Charging
  7. Courtesy and Dome Lights
  8. Electric Choke
  9. Emergency Flashers
  10. Fused Power Source
  11. Glove Box Light
  12. Headlights
  13. Horn (Relay)
  14. Ignition Coil
  15. Instrument Panel Lighting and Gauges*
  16. Park Lights
  17. Radio/Clock (Constant and Switched)
  18. Starting
  19. Tail Lights and License Plate Light
  20. Trunk Light
  21. Turn Signals
  22. Wipers and Washer Pump

* Including Wires For:
Aftermarket Tachometer
Brake Warning Light
Fuel Gauge
Gear Indicator Light
Oil Gauge
Temperature Gauge

Number of Circuits: 22 Circuits – 12 Fuses w/ Horn Relay, Accessory Relay and Maxi Fuse
Harness Length: Factory Fitment
Fuse Type: Mini Blade & Maxi Fuse
Firewall Passthrough: Grommet
Color Code Based:  Factory Ford
Circuit Designations: Printed on Wires

Complete Ford color-coded chassis wiring harness for:

  • 1969 Ford Mustang
  • 1970 Ford Mustang
Painless Part Number: 20122 Category: Tags: , , , , , , , , Product ID: 20767


This 22 circuit direct fit 1969-1970 Ford Mustang wiring harness has many of the factory connectors already installed on the harness out of the box.  This harness uses our unique covered micro-fuse block.  Also featured is an auxiliary circuit with 20 amp relay for accessories such as fog lights, or an electric fuel pump. Each wire is custom printed with the circuit identification as well as using Ford wiring color codes for easy installation.


  • 1969 Ford Mustang
  • 1970 Ford Mustang


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