1987-89 Mustang American Autowire Classic Update Wiring Harness by American Autowire

1987-89 Mustang American Autowire Classic Update Wiring Harness
1987-89 Mustang American Autowire Classic Update Wiring Harness
Ford Mustang American Autowire Classic Update Wiring Kit (87-89)

Update the wiring in your modified Fox Mustang with this 1987-1989 Mustang Classic Update wiring harness!

Item #AAW-510547
MPN# 510547

Everyday Low Price: $1,387.00

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  • Ford Mustang - 1987, 1988, 1989
  • 1987-1989 Mustang
  • 1990-1993 Mustangs for Off Road use only. (No Airbag Provisions)
Fitment Notes
  • This harness does not include an Engine ECU or Fuel Injection harness. The supplied engine bay harness contains - temperature, oil pressure, tachometer wiring, Ignition/ECU power, A/C compressor connections, and alternator connections.
  • This harness is intended for modified applications only. Not intended for OEM replacement.
  • This kit will fit 1990-1993 Mustang, but DOES NOT have provisions for the airbag. Therefore, this kit is intended for OFF-ROAD use only on this year's span.
  • This kit will NOT work with factory gauges. This harness is meant to hook up to most aftermarket gauge setups.
  • Some connectors & grommets will need to be re-used. These include the defrost, dimmer, and wiper. The complete list is in the included instructions.
  • This kit does not have the provision for the convertible switch. 


  • Most Complete System Of Its Type
  • Modernizes Wiring System
  • Detailed Instructions


  • Includes A 175 Amp Mega Fuse For Main System Protection
  • New Headlight & Hazard Switch Connectors Pre-Installed
  • Supports Aftermarket Gauges

 What's in the Box

  • (1) Fuse, Relay, and Flasher kit
  • (1) Practice Terminal Crimping Set
  • (1) Dash Harness
  • (1) Engine Bay Harness
  • (1) Front Light Harness
  • (1) Instrument Cluster Harness
  • (1) Rear Body Harness
  • (1) Kit Introduction Instruction Sheet
  • (1) Warning Sheet

This wiring harness is not intended to be an OEM replacement harness. Please read the instructions for more information on the connections included in this wiring harness. All other connections will need to be custom-wired.
Modernize Your Fox Body
Are you looking for a complete wiring harness for your modified 1987-1989 Fox Body Mustang build? Late Model Restoration has the solution with this American Autowire Classic Update Wiring Harness! This wiring harness kit has great features to help you update and finish up your project car! Not only is this wiring kit great for custom builds, but it is also a nice upgrade for worn-out, melted, or damaged wiring in Fox Mustangs! This kit includes a new dash, engine bay, front light, rear body, and aftermarket gauge cluster harnesses to make this the most complete harness kit on the market. Extremely detailed instructions make this kit unbeatable! 
  • A compact fusebox with aluminum mounting plate that can be used for early and late model mounting locations.
  • Includes a 175 amp Mega Fuse for main system protection.
  • Dash harness comes with all factory steering column connectors installed and ready to plug into your factory switches.
  • New headlight and hazard switch connectors come pre-installed on harness. Wiring with new terminals for fog lights or rear defrost switches included in the dash harness.
  • New door switches and connectors for courtesy lighting.
  • Instrument Cluster wiring is designed with a “cluster harness disconnect” system for easy service and assembly. Supports most aftermarket gauge packages.
  • Rear body harness comes complete with new lamp sockets.
  • Engine wiring includes feeds for coil, tach, water temperature, oil pressure, electric choke, and electric speedometer (if needed). A heavy gauge alternator feed and fusible link are also included for any typical high output 1 wire or internally regulated alternator.
  • Front lighting includes extra long leads that can be routed for stock or custom appearances.
  • New headlamp, directional, and marker lamp sockets come installed on the front light kit. 
  • Includes new washer pump connector and wiring.
  • Supports power windows and locks with the use of the factory door harnesses.
  • Includes heat and A/C wiring with new blower switch and blower resistor connectors installed.

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Ford Mustang American Autowire Classic Update Wiring Kit (87-89)

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About This Brand

American Autowire
American Autowire produces a huge selection of wiring harnesses, accessories, kits, and components that any true rodder or restorer can appreciate. We offer over 9,000 original restoration wiring harness, switches, battery cables, and spark plug wire set combinations in our Factory Fit® product line, complete modified restoration kits in our Classic Update Series, and provide integrated fuse panel and modular fuse panel street rod wiring through our Power Plus, Builder, and Highway series.
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