Search  for anything...

Universal Extra Long Wires 21 Circuit Wiring Harness Hotrod Kit Compatible with GM Chevy Universal Automotive Wiring

  • Based on 539 reviews
Condition: New
Checking for the best price...
$106.99 Why this price?
Save $23.00 was $129.99

Buy Now, Pay Later


As low as $17.83 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Oct 27
Order within 14 hours and 37 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • 17 fuses and 21 circuits; GM column connectors are included
  • Find the corresponding line according to the font annotation of the insurance box
  • Designed with convenient plug and play connectors (switched power, constant power, and ground connections required).
  • GM installations see photos above, Comes with detailed instructions.
  • Package includes wiper/radio acc, cruise/backup, heater/air, clock, dome, cig lighter, crtsy power, power door, power seat, fan power, coil, choke, instrument power, flasher, fuel pump power, brake, power window, headlight, radio battery, horn.

Description

1X PRE-WIRED FUSE PANEL WITH 17 FUSES AND 1 BREAKER 2X SIGNAL FLASHERS AND 1 PRE-WIRED RELAY CONNECTOR WITH HORN RELAY 2X PRE-WIRED HEADLIGHT PLUGS; 1X PRE-WIRED LATE GM ALTERNATOR PLUG 2X PRE-WIRED GM COLUMN IGNITION SWITCH PLUGS 1X PRE-WIRED DIMMER SWITCH PLUG 2X GM TURN SIGNAL CONNECTORS FOR THE PRE-TERMINATED WIRES (3 7/8" AND 4 1/4") 1X FUSIBLE LINK (3" BLACK WIRE WITH RING TERMINAL) 1X LARGE GROMMET 30X PLUS MISCELLANEOUS INSULATED TERMINALS AND SOME SMALL CABLE TIES 2X LOOSE WIRES (NUETRAL SAFETY SWITCH WIRE AND PANEL LIGHT WIRE) READ THESE INSTRUCTIONS before starting this installation. These instructions were developed after installing this system in over a dozen different vehicles and should make this a quick and SQ-DUBNAG job. To aid you we have used BOLD PRINT to note IMPORTANT items and provided general diagrams for FORD, GM and MOPAR. There is also a DO'S and DON'TS section that you may find useful. Please remember that these are GENERAL INSTRUCTIONS for your UNIQUE and SPECIFIC vehicle and you may need to MODIFY them for your application. Also whenever using AFTER-MARKET or SPECIALITY equipment, always use the diagrams PROVIDED WITH that equipment. This WORKBOOK is designed for both our labeled and color-coded harnesses. Whenever a specific wire is referred to, it will be displayed with its LABEL then it's COLOR. You are to use the destination that applies to the kit you purchased. If a diagram shows ONLY a color OR a label then that wire is NOT PROVIDED by this kit. An example of this would be GROUND WIRES which we DO NOT provide. We do recommend the use of black for ground wires on our color-coded harness and white on our labeled black harness to eliminate possible confusion. Remember this is a WORKBOOK!!! So make use of the blank space we provide for your notes. Write things down so you won't forget. STEP #5 IF YOU NEED INSTALLATION INSTRUCTIONS, WE WILL SEND YOU TO MEET YOUR NEEDS ! ! !

Brand: VOWAGH


Material: Plastic


Connector Type: Gm Specific


Recommended Uses For Product: Automotive electrical wiring and circuit installation for hot rods, muscle cars, and street rods; designed for GM/Chevy vehicle wiring including lights, ignition, gauges, wipers, fuel pump, and other 21-circuit electrical accessories See more


EU Spare Part Availability Duration: 7 years


Brand Name: VOWAGH


Recommended Uses For Product: Automotive electrical wiring and circuit installation for hot rods, muscle cars, and street rods; designed for GM/Chevy vehicle wiring including lights, ignition, gauges, wipers, fuel pump, and other 21-circuit electrical accessories


Number of Items: 1


Manufacturer: ay-autoparts


Unit Count: 1 Count


Number of Packs: 1


Model: HX1503


Part Number: HX1503


Wire Diameter: 5 millimeters


Connector Type: Gm Specific


EU Spare Part Availability Duration: 7 years


Material Type: Plastic


Cable Type: Flat Ribbon


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Extremely impressed
I was very skeptical about purchasing this, but honestly this was the best investment I’ve made for my project car, after going through the factory and old circuits and obsolete devices, I wiped the slate clean and purchased this harness. Every wire is labeled, some are printed pretty lightly but your still Able to see it. Every circuit works perfect and was pinned correctly, the factory gm connector to the column was perfect and easy to pin, the light wiring all works perfectly and as should, headlights/high beams/parking/blinkers/brake light You will need to use heavier duty flashers! The ones supplied are junk, made for like 2 incandescent bulbs, upgrade to better ones I ended up cutting out many older circuits and ones I don’t have such as power windows/locks/carb, and all the original engine sensor inputs since I’m Using a stand alone, I have a separate fan and fuel pump relays, but overall this harness is awesome, wires are all very thick gauge, and way longer than needed which is great. If your building a project car especially ls into any 80s car, this is the only route I suggest you go, it will save you more time this way than dealing with the factory body harness, it’s not 100% plug and play and you do need knowledge of automotive electrical, but if you know what you are doing, it’s a breeze. I was originally going to go with the painless or American auto wiring for $499! But I was going to cut some out anyway, I would recommend this harness 10000% ... show more
Reviewed in the United States on January 27, 2024 by Robert

  • Great value for a universal wiring harness! You'll have to put in the elbow grease though.
I purchased this wiring harness for my 1976 Chevrolet C10 Truck. I've re-wired a few vehicles before, including a Nova and a Chevelle. This was also not my first time using a universal wiring harness. It can be daunting at first, but there are plenty of resources (videos) out there to help. The first step was to organize the various groups (e.g., engine compartment, interior, rear of vehicle, etc.). The instructions were decent, but I ended up cobbling together some other companies' instructions for their respective universal wiring harnesses to clarify some things. If you take it slow and stay organized, this can be an excellent value over a more expensive plug-and-play wiring harness. All of my wires were clearly labeled and easy to read. Every circuit was also correctly installed in the fuse box so I didn't have to do any troubleshooting. Since my truck lacks several of the options included with the kit, I had some leftover wires/circuits that I tucked away in case I added something in the future. I'd highly recommend this kit to anyone, but if it's your first time wiring, it may feel overwhelming. I enjoy taking my time and organizing my wire routing while using period-correct terminals (56 series). Some cloth tape also makes everything look nice and protects the wires. All-in-all, a great value if you're willing to put in the work on your end! ... show more
Reviewed in the United States on October 4, 2023 by BB in LV

  • Questions
Great harness, only thing is, the electric fan wiring diagram is missing and there’s a few unlabeled wires and black wires that aren’t labeled, I can’t find where to contact the vendor for additional information.
Reviewed in the United States on October 6, 2023 by Meuret

  • Save your time and pay more for something done correctly.
Wires are not labeled nor do the colors match the diagram. I believe I was sent a return because the wires came tangled and grouped incorrectly. The instructions were hard to read and contained a multitude of typos. majority of the connections came half way falling off. Unless you are a complete expert or have all the time in the world I would save your time and money and buy a different kit, this one is not worth it. ... show more
Reviewed in the United States on May 23, 2026 by Kelly Buchert

  • Not labeled
My harness did not come labeled, Amazon agreed to send another one. Same thing, no labeled wires. Would like for the seller to reach out to me. Has not responded to my requests. Harness itself is great quality, it has all of the proper connections and wire length.
Reviewed in the United States on January 24, 2026 by robert

  • CHANGE IN PRINT QUALITY
THE FIRST TWO OF THESE KITS I INSTALLED WERE GREAT. THE THIRD KIT I'M WORKING ON NOW IS VERY HARD TO READ DUE TO SMEARD INK OR LIGHT INK. SAD.
Reviewed in the United States on May 11, 2024 by Amazon Customer

  • Good quality
Has everything u need for installation, plenty of length on wires
Reviewed in the United States on April 29, 2026 by anthony

  • Great product, Well worth the price
I read reviews before purchasing and was skeptical at first, but once product arrived and starting installing in my 32 Plymouth it was apparent that this is well worth the price compared to name brand products, I can see where some mention that the instructions could be a little better but I have worked on cars for many years and if you don't have an understanding of electrical components and controls then you shouldn't be attempting to take on a job this size unless your willing to research, understand and learn. Very happy with my purchase great product all circuits work as they should and wire leads are plenty long enough for complete rewire of my hotrod. ... show more
Reviewed in the United States on March 6, 2021 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...