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28 Circuit Direct Fit 1966-77 Bronco Harness w/o switches By Painless Performance

P/N 10114

28 Circuit Direct Fit 1966-77 Bronco Harness w/o switches


  • Application
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Year: 1966 - 1977
Make: Ford
Model: Bronco
Engine: Carbureted or Any Stand Alone Fuel Injection
Trans.: Any
American Made


Designed with input from Bronco owners everywhere, this 28 circuit direct fit 1966-1977 Bronco harness sets a new standard in wiring. This harness includes a molded plastic glove box that not only replaces the factory cardboard one, it also mounts our weatherproof fuse block. You'll also find factory-style molded exterior light connectors, Ford turn signal connectors and a Ford dimmer switch connector. This harness has most of the factory connections are already pre-terminated. Also available is an 80+ page full color step by step install manual with over 80 photos, drawings and harness schematics. Each wire is custom printed with the circuit identification as well as using Ford color codes for easy installation.  


Here are some of the great features included with this kit. 


The heart of your new Bronco wiring harness is centered around this weatherproof fuse block.  With 28 total circuits and 9 accessories circuits, this harness will support most features and add-ons you want to add to your Bronco.  


Underneath the fuse block we can see the weatherproof terminals and covered power supply post. 


Included with your Bronco harness is a custom molded glovebox. This is also the mounting location for your fuse block. 


Properly mounting and routing your wiring harness is a critical step to avoid any premature wear to your wiring. We provide you with enough zip ties and grommets to make sure you avoid any issues.


Included in your parts kit you’ll find terminals, weatherproof splices, screws, extra fuses etc.


One of the many features of your new Bronco harness allows you to add an aftermarket tach. 


No matter if you have an early, mid, or later model column, we’ve provided you with a pigtail to adapt them all to your new Bronco harness. 


All of your rear lights are properly insulated making for a plug-n-play install.


As with every wiring kit from Painless, you’ll find our signature printed wire. They tell you the wire number, where it’s coming from, and where it’s going to. 



Number of Circuits: 23 Fuses w/ Horn Relay
Harness Length: Factory Fitment
Fuse Type: Mini Blade & Maxi Fuse
Firewall Passthrough: Multiple Grommet
Color Code Based: 1966 - 1977 Bronco
Circuit Designations: Printed Wire Tags on all Connectors and Printed on Wire for Open Ended Wires
Connectors Included: Hazard Flasher, Turn Flasher, Horn Relay, Heater Switch, Turn Switch, Wiper Motor, Dash Indicators, Lights and Instruments, Wiper Washer, Headlights, Park Lights, Turn Signals, Horn, Dimmer Switch, Voltage Regulator, Tail Lights and a parts kit that includes the neccessary factory Ford terminals to reuse factory connectors for the Headlight Switch, Ignition Switch, Wiper Switch, Dash Mounted Hazard Switch, Dash Label Lights, 1973-UP Turn Signal Switch, 1966-1967 Turn Switch, Brake Warning Light

This harness includes circuits for:

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


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

 28 Circuit Direct Fit 1966-77 Bronco Harness w/o switches By Painless Performance



ECM Flash Program



This is a basic start and run tune that we only recommend for a near stock application. We will only change the following parameters: delete VATS/PASS-KEY security, cooling fan on/off temperatures, rear end gear ratio, tire size, speed limiter, rpm limiter, idle rpm, and we will adjust the check engine light parameters. If your setup requires any other parameters tuned you will need to locate a local tuner. All ECMs are left unlocked to allow easy access for your tuner.

Step 1: Purchase one of the qualifying part numbers. See below for that list.

Step 2: If your part number is highlighted RED proceed to step 3B. If your part number is highlighted BLACK, proceed to step 3A.

Step 3A: If you have arrived at this step, your harness does not come with an ECM and you must provide one to be flashed. Please reference the manual with your harness to confirm the ECM part number required.

Step 4A: Once you have received your harness, please cut the Barcode label from the box as shown in the picture below.

Step 5A: Package and mail your ECM along with the Barcode label, a copy of your purchase receipt, and your ECM form that you are about to complete. (The address will be provided after you complete the form). We will pay for return ground shipping*. If you request a faster service, you will need to provide a return label.

Step 3B: If you have arrived at this step, your purchase comes with an ECM. You must fill out our ECM form BEFORE your purchase will ship. Proceed to Step 6.

Step 6: Click the “Start Here” button below to fill out our ECM questionnaire.

Step 7: Once we have the ECM, we will use the data from the form to flash the ECM. Then, once it has been flashed we will package the ECM and ship it back to you. If we encounter a question, we will contact you. This process can take 1-3 days.

Step 8: Once you receive your ECM, it is ready to go.


*Note: Our free return shipping is ONLY good for the lower 48 states, via ground UPS. If you are outside of those states, you must provide a return shipping label with your order. If your purchase comes with an ECM, the shipping will be covered via the retailer you purchased from.



Click the Start Here button below to get your FREE ECM Flash!

Click Here To Start The ECM Reflash Process


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