Under Dash Wiring Harness 1966

CJ's Part Number: WUD2
MSRP: $449.95

Regular Price: $447.99

Special Price: $425.59

1490572800 40709
Why not add more wiring to your purchase!

Regular Price: $89.99

Special Price: $71.99


Regular Price: $93.99

Special Price: $75.19

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Under Dash Wiring Harness 1966

Product Description

Under Dash Wiring Harness for all 1966 Mustangs.

Faulty wiring can be difficult to trace and very frustrating to deal with, so replace yours today by purchasing this Under Dash Wiring Harness! Now available at CJ Pony Parts, this wiring harness is an OE-style reproduction, easily installing into place.

Features & Benefits:
- Direct Fit Replacement
- Original Connectors
- Works with OEM Switches and Gauges
- Supplies Power to Instrument Panel Cluster, Door Courtesy Lights and Other Dash Connections
- Pre-Assembled to Length with Color Molded Connectors
- Includes Fuse Block, Plugs, and Lamp Sockets
- Correct Color Coded Wiring
- No Cutting, Splicing or Crimping Needed
- Easy Install
- Made in the USA for Over 25 Years, Time Tested and Industry Proven

Manufactured right here in the USA for over 25 years, this wiring harness is designed to be a direct fit replacement, coming with a new fuse block, clips, lamp sockets, and molded plugs. It includes original style connectors and the proper color coded wiring, making installation a breeze. Fitting through your Mustang's firewall behind the instrument cluster, it will provide power to your instrument panel cluster harness, door courtesy lights and other dash connections. Working with the OEM switches and gauges, there is no need to cut, splice or crimp the harness.

Please Note: This is a Detroit style harness, so it does NOT come with wiper switch wiring.

If your Electrical and Wiring needs a little help so all the electrical components in your Mustang will work, or if the Mustang wiring harnesses just need completely replaced, CJ Pony Parts is stocked with all of the Mustang electrical and wiring components you need. Buy your wiring harness today and get your Mustang back on the road in no time.

Order this Under Dash Wiring Harness for your 1966 Mustang from CJ Pony Parts today!

Similar Mustang Parts

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Mustang years:

Product Reviews

Write a review
Under Dash Wiring Harness 1966 is rated 4.5 out of 5 by 2.
Rated 5 out of 5 by from Like a glove! The 66 mustang wiring harness was a perfect fit. All connectors fit existing wiring. The quality was excellent and the installation was fairly easy. The gauge lighting sockets were not nearly as tight as the originals, but still stayed in position. In fact, the led lights went in much, much easier in the new wiring harness. It did not come with any installation instructions, but with the existing wiring it was easy to figure out. I would have appreciated a wiring schematic. Overall, I was very pleased with the product.
Date published: 2015-12-09
Rated 4 out of 5 by from Solid harness with OEM colors and connectors Installed just like OEM. As previously reviewed the instrument sockets aren't as tight in the dash holes but do hold the bulbs more secure. Can't give it 5 stars because the headlight plug was wired 180 out. Couldn't figure out why I had power to the headlight switch but no brake lights, parking or head lights. Once I went on line and found the right match it only took 5 minutes to pop the 8 wires out and relocate.
Date published: 2015-12-12
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Product Questions

Is there a benefit going with this set up over a complete wiring harness that goes from headlight to taillight.

Asked by: Slim1966
Unless you are looking for originality or just want to replace a certain section there is no benefit.
Answered by: rk cjpp
Date published: 2016-08-08

Hi I need to completely rewire my 66 fastback gt . It is a code A 289 v8. Could you tell me which wiring looms I need and also which alternator would be best?. Many Thanks. Tony Camilleri

Asked by: Hairy Camel
I would recommend checking out P/N: WH6466, here: http://www.cjponyparts.com/painless-performance-complete-chassis-wiring-harness-14-circuit-1965-1966/p/WH6466/ And any of these options will work great for a alternator. It all depends on your needs and current setup, here: http://www.cjponyparts.com/mustang-parts/c/60000000/?product_type=36&brand_name=855
Answered by: CJPP Dave
Date published: 2016-03-23

we are after underdash wire loom for 1966 Australian delivery mustang

Asked by: rfjc2468
This harness is for left hand drive, not sure if this would work for your application without modification.
Answered by: rk cjpp
Date published: 2015-12-10

Does this wiring harness Have A Attachment for the new Version Of the 1966 mustang stereo ?

Asked by: mota_310
No it would not.
Answered by: rk cjpp
Date published: 2015-11-10

does this harness include the 2 speed wiper motor harness? Also will it connect to the GT instrument panel?

Asked by: dutchman
Yes this is what you will need.
Answered by: rk cjpp
Date published: 2015-11-09

I recently purchased this wiring harness and the emergency light switch is wired into it.  Do you have a wiring schematic for this harness and is the another flasher that has to be installed in addition to the directional signal flasher

Asked by: Guidster
Unfortunately, we do not have a wiring schematic available.
Answered by: CJ Pony Parts
Date published: 2015-06-01

does this hook up to the gauges and the ignition switch

Asked by: rich g
It supplies power to the instrument panel cluster harness, the console feed harness, door courtesy light harness and other dash connections.
Answered by: CJ Pony Parts
Date published: 2015-05-04
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