Painless Performance Universal Muscle Car Wiring Harness 21-Circuit-12 Fuses

Painless Performance:
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  • Bulkhead Connector
  • Universal Fitment
  • Destinations Printed On Wires
  • Blade & Maxi Fuse
MSRP $982.95
You save 49%

Painless Performance 21-Circuit 12-Fuses Universal Muscle Car Wiring Harness.

Painless Performance's Universal Muscle Car Harness can be used in just about any vehicle where basic wiring is needed. Many 1960s and 1970s GM, Ford and Chrysler vehicles utilize a square bulkhead connector to penetrate the firewall. This harness provides you a fuseblock with this feature and the benefits of spade type fuses. Some firewall modification may be required.

Number of Circuits: 12 Fuses with Horn Relay and Maxi Fuse
Harness Length: Universal
Fuse Type: Blade & Maxi Fuse
Firewall Passthrough: Bulkhead Connector
Color Code Based: Universal
Circuit Designations: Printed on Wires

This Harness Includes Circuits For:
- Headlight Switch- Power to headlight switch. Power wires out of headlight switch to head light dimmer switch, tail lights, dash lights and park lights.
- Dimmer Switch wires include power from headlight switch and power out to low and high beam headlights.
- Wiper Switch- Power to wiper switch. You will need to retain the wires between the wiper switch and your wiper motor.
- Turn Signal Switch- Power into and out of your column mounted turn signal switch. Also included in this kit are both styles of GM turn switch connectors. Note: these will connect to most aftermarket and factory steering columns.
- Ignition Switch- Power into and out of to fuse block (ignition, crank and accessory).
- Brake Switch- Power into and out of brake switch. This includes a third brake light wire.
- Courtesy Lights- Power and ground circuits for dome light activation.
- Alternator- Charge wire and alternator field activation wires. (Most alternators can easily be wired up to this Painless harness). Included in kit is a high output alternator wire that allows you to use up to a 140 Amp alternator.
- Horn- 40 Amp horn relay mounted to fuseblock.
- Radio- Harness includes constant B+ (for preset memory) and ignition hot circuits for any aftermarket or factory radio.
- Starter- Crank signal wire for starter solenoid.
- Engine section wires including electric choke, coil power, coil to tach signal, oil pressure, engine temperature, and A/C compressor clutch control wire.
- Headlight section wires including right and left high and low beam headlights, turn signals and park lights.
- Tail section wires including tail lights, brake lights, turn signal lights, fuel gauge sender, third brake light, and reverse lights.
- Dash panel section wires including fuel, temperature, oil pressure, voltage, tachometer, speedometer, high beam and turn indicators and gauge illumination.
- Also included in kit is a fuse block mounting bracket, rubber grommet, 4 inch zip ties, 70 Amp maxi fuse and a large assortment of crimp style connectors.

California Residents: Proposition 65 Warning

Installation Difficulty


Advanced skill is required for this installation.

Vehicle Fitment

This product will fit the following C10 years:

This product will fit the following Mustang years:

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Does it has the wiring for a neutral safety switch

Asked by: Kstang66
No it does not.
Answered by: rk cjpp
Date published: 2020-04-26

Im attempting to swap a late 80s, early 90s 5.0 into my 65 mustang. Trying to make sure this is the harness that i need.

Asked by: MickeyDeeze
that harness is a universal body harness
Answered by: Brendan CJCT
Date published: 2020-04-10

Own a 49 GM 3100 shortbed pickup ..stock frame but 350 sbc / 350 AT! No A/C no heat no powerwindows no Power seat....just a standart thing! Looking 4 a standart plug&play easy wiring Kit to bring my Elektrik System back in line! How much????

Asked by: harlee42
The price is located on the parts page.
Answered by: rk cjpp
Date published: 2018-11-19

I have 1984 mustang GT 350 someone has installed 351 w and cut alot of wires now I have corrosion issue witch harness would be best to resolve my issue

Asked by: Mustang Jeremy
We do not offer a specific wiring kit for your application. We do offer this universal kit, You can view the installation instructions below the product description.
Answered by: rk cjpp
Date published: 2019-03-30

I have a 73 mustang coupe. Will this harness work and if so how hard will it be to install? does it come with a diagram?

Asked by: mah1
This is a universal harness that will fit many applications. It can be difficult to install since it is not a direct replacement for your application. It does come with instructions, the instructions can be viewed below the product description.
Answered by: rk cjpp
Date published: 2018-11-19

Does this kit come with the switches and bezels etc. to plug the wires into? 

Asked by: brian64
This will come with wire ends that you have to install to plug into your existing switches.
Answered by: rk cjpp
Date published: 2020-01-02

will I need a separate wiring harness for the instrument panel or the turn signal? My entire turn signal wires were cut out, would it be best to replace this with a separate complete harness?

Asked by: Daddyos67
This will include instrument and turn signal wiring, we do offer vehicle specific wiring kits.
Answered by: rk cjpp
Date published: 2018-11-19

I have a 68 coupe with factory air. Will this work and will I need any additional wiring. Restoring from the ground up. Thanks

Asked by: Debs68
You can use this harness that is more of a direct fit for your application,
Answered by: rk cjpp
Date published: 2020-01-02
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