Power Tailgate Harness Add-On Kit | Ford Bronco (1978-79)

The harness the Classic Update kit leaves out. Every 1978-79 Bronco left the factory with a power rear tailgate window. Rewire the truck with a Classic Update kit and you find the one circuit the kit does not cover is the one that drops the glass. This is that harness. It runs from the dash mounted switch back to the tailgate switch and harness assembly; the section that unplugged in the left hand rear of the truck on the original loom. Read the exclusions before you order. The tailgate mounted switch and harness are not in this kit and American Autowire does not sell them; you reuse yours. The dash switch is not in here either; those are still available from Bronco parts suppliers. Buy it with the Classic Update kit. Buying it after is how a finished wiring job ends up with the tailgate still dead.

  • Fills the gap in the Classic Update kit - the power tailgate circuit is the one 1978-79 Bronco function the main kit does not carry.
  • Factory routing - the harness runs dash switch to tailgate switch the same way the original loom did; including the disconnect in the left hand rear.
  • New wire in an old circuit - forty five year old insulation on a high current window motor circuit is the problem; not the motor.
  • Clear about what it is not - the switches are excluded and the listing says so plainly so you can plan around your originals.

Install Level: Moderate

Does not include the tailgate mounted switch and harness assembly; reuse your original.
Does not include the dash mounted switch; reuse your original or source a new one from a Bronco parts supplier.
Required to complete a 510342 Classic Update Kit installation on a 1978-79 Ford Bronco.

American Autowire
SKU: 510358 ISBN: 40328358985918
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Power Tailgate Harness Add-On Kit | Ford Bronco (1978-79)
$112.00
Overview
Specifications
Tech Resources
Compatibility

All 1978-79 Broncos used an electrically operated power rear tailgate window. There was a dash mounted switch assembly located near the factory heater and A/C controls, a main harness assembly, and a rear window switch and harness assembly that disconnected from the main harness assembly in the LH rear of the truck. This new AAW kit consists of the main harness that connects to the dash mounted switch and to the rear tailgate mounted switch and harness assembly only.

This kit DOES NOT include the actual tailgate mounted switch and harness assembly, nor does it include the dash mounted switch itself. You must re-use both of your originals (new dash switches are still available from your favorite Bronco parts supplier if needed, but the tailgate switch/harness is not).

Note: If the 510342 Classic Update Kit is being purchased for a 1978-79 Ford Bronco, this add-on harness must be purchased to complete the installation.

American Autowire part number 510358
Vendor: American Autowire
Contents: main power tailgate window harness
Connects: dash mounted switch to the rear tailgate mounted switch and harness assembly
Excluded: tailgate mounted switch and harness assembly; dash mounted switch
Application: 1978-79 Ford Bronco
Companion kit: 510342 Classic Update Kit
Listed price 112.00 USD
Variant count: 1
No wire gauge; harness length; connector count or circuit protection detail is published on this listing
Fits the 1978-79 Ford Bronco power rear tailgate window circuit.
Required to complete a 510342 Classic Update Kit installation on a 1978-79 Bronco.
Supplies the main harness only; the tailgate switch and harness assembly and the dash switch are reused from your truck.

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