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84-86 Fiero Headlight Motor Upgrade Kit $0.00





I'm developing a new design kit that will be much easier to install this winter.


I've been very busy with many other things these days.



UPDATE 1-15-19:  I have made some progress. I hope get this new kit finished sometime in early 2019.


Update 3-25-19:  A local Fiero owner stopped here and we installed a kit. Took many pictures etc. I'll be making an installation page, paper instructions and I'll be updating this page soon. At that time they will be available to purchase.




Will look more like OEM.




Upgrade your 84-86 headlight motor lift system


You can no longer find new isolation relays. So I have developed a kit to replace the relays and the isolation relay.


Some history of the 84-86 headlights:

Most that have headlight motor problems in their 84-86 Fiero want to blame the headlight motors. They replace them with rebuilt headlight motors but many times still experience the same problems. Some replace the relays but again still have the same problems. Why? The problem in most all cases is a diminished path for the voltage and amperage from the battery reaching the armature of the headlight motors. The armature is spring loaded and if it does not spin with enough strength and momentum it will not operate the contacts in the headlight motors correctly.

The path for the voltage from the battery and back (all the grounds) is a long one. As on any older vehicle, time takes it's toll on the wiring connections, grounds etc. There is never any one place to look. It starts at the battery terminal and little by little the voltage and amperage diminishes along the way. Slightly corroded connections in all the various connectors. Corroded grounds. Every marginal connection diminishes the voltage and amperage to the headlight motor armatures. By the time the voltage gets to the armatures in the headlight motors it can be seriously diminished.


How can the voltage make it to the headlight motors when they have to pass thru connections like this!!

I have seen some Fiero owners take and clean up the OEM connectors hoping to get better connections in the relays. To a point this works but when we were installing these kits in peoples Fieros we found many wires had corrosion between the brass connectors in the plugs and the copper wires. We had to sand many wires to get fresh copper.  When you install my kit you will probably see this in some/many of the wires. Installing my kit eliminates all of these marginal connections.



My kit eliminates most of these marginal connections.  I include butt splices with open centers so you can solder them and adhesive lined shrink tube to make solid water tight connections. You splice on the new connectors to each headlight motor, again using butt splices you solder and adhesive lined shrink tube. Once installed the largest part of the headlight control system is now all new and waterproof.


  New weatherproof disconnects that go to the headlight motors are included in the kit


Included in the kit is a tool to use to raise and lower the headlight bucket as you work on it.        



Tools needed:

  • Wire stripper/crimper
  • Heat gun
  • Wire cutter
  • Soldering iron (40 watt is preferred)
  • Socket set
  • Reversable variable speed hand drill (cordless preferred)
  • Screwdrivers

Misc. needed:

  • Electrical tape


Included with the kit is a step by step instruction sheet. Use both the paper instruction sheets and this installation web page below to install this kit.


A step by step installation web page with pictures is coming later.


This upgrade kit does both headlight motors. You only need to order one kit per car. 



Shipping:    Shipping is $8.00 (Midwest USA)

Shipping to areas outside of the USA: Generally I ship postal air first class mail. Shipping varies depending on what country they are going to. It ranges from $16.50 to Canada to $24.00 or more to Australia etc.





I do not offer free shipping.

Because I use postal flat rate boxes for heavy orders there is no program that can add the proper amount of shipping to every order. So all shipping is added manually by myself after you place your order. That is explained here: Shipping added later explanation 

When you place an order the shipping amount will show $0.00. Soon after you place an order you will receive an email confirmation that shows the amount of shipping that was added to your order.





Core requests: Stan Miller rebuilds many headlight motors. Stan has a hard time finding cores. If you have any old headlight motors or parts of headlight motors you do not need Stan will buy them from you. Contact Stan Miller at:




Current Reviews: 1
This product was updated on Monday 25 March, 2019.
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84-86 Fiero Headlight Motor Upgrade Kit
Very well worded instructions, love the on-line pictures the ..
5 of 5 Stars!

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