Circuit designation are labeled on each wire, Available in universal or Chevy designation to custom fit your application, Includes wiring harnesses, all connectors, brackets, flashers, and zip ties, Kit has 21 total circuits and includes 12 fuses w/ horn relay and maxi fuse, Each wire is printed with the circuit identification as well as using GM color codes for easy installation Painless Wiring 10102 Universal 21 Circuit Wiring Harness Sku # 91064029-UNIV Mfr. Part # 10102 Condition New Brand Painless Wiring Sold Each Details Info This 21 circuit kit is our most widely used customizable chassis harness. You'll find that it's easily adaptable to almost any vehicle. We offer two versions, one with a preterminated GM column mounted ignition switch connector (10101 CHEV) and one without (10102 UNIV). Included with this harness are the following parts; a GM engineered fuse block & Painless mounting bracket; GM turn signal connectors; pre wired plugs for the headlights & dimmer switch; and each wire is printed with the circuit identification as well as using GM color codes for easy installation. Number of Circuits: 21 Circuit - 12 Fuses w/ Horn Relay and Maxi Fuse Harness Length: Universal Fuse Type: Blade Firewall Passthrough: Grommet Color Code Based: GM Circuit Designations: Printed on wire Connectors Included (10101 CHEV): GM Steering Column Turn Switch and Ignition Switch, Dimmer Switch, Two Headlight Pigtails, 10SI & 12 SI Alternator, HEI Power and Tach and 20 Extra 56 Series Terminals for use with any Factory GM 56 Series Connector such as Headlight Switch, Wiper Switch or A/C Switch/Blower Motor. Connectors Included (10102 UNIV): GM Steering Column Turn Switch, Two Headlight Pigtails, 10SI & 12 SI Alternator, Dimmer Switch Choose from the Universal Harness or the GM Harness (Chevy) for use with GM column-mounted ignition switch. This harness includes circuits for: A/C and Heat Accessory / Cigarette Lighter Backup Lights Brake Lights Charging Dome Light Electric Choke Emergency Flashers Fan Relay Activation Power Fused Power Source Headlights Horn (Relay) Ignition Coil Instrument Panel Lighting and Gauges* Park Lights Radio/Clock (Constant and Switched) Starting Tail Lights Third Brake Light Turn Signals Wipers * Including Wires For: Fuel Gauge Oil Gauge Tachometer Temperature Gauge Voltmeter This harness includes circuits for: A/C and Heat Accessory / Cigarette Lighter Backup Lights Brake Lights Charging Dome Light Electric Choke Emergency Flashers Fan Relay Activation Power Fused Power Source Headlights Horn (Relay) Ignition Coil Instrument Panel Lighting and Gauges* Park Lights Radio/Clock (Constant and Switched) Starting Tail Lights Third Brake Light Turn Signals Wipers * Including Wires For: Fuel Gauge Oil Gauge Tachometer Temperature Gauge Voltmeter Charts (PDF) Installation Tips This harness includes circuits for: A/C & Heat Accessory / Cigarette Lighter Backup Lights Brake Lights Charging Dome Light Electric Choke Emergency Flashers Fan Relay Activation Power Fused Power Source Headlights Horn (Relay) Ignition Coil Instrument Panel Lighting and Gauges* Park Lights Radio/Clock (Constant and Switched) Starting Tail Lights Third Brake Light Turn Signals Wipers * Including Wires For: Fuel Gauge Oil Gauge Tachometer Temperature Gauge Voltmeter Specs Sold in Quantity Kit Number of Circuits 21 Notes Includes wiring harnesses, all connectors, brackets, flashers, and zip ties. MFG. Part # 10102 GTIN Code 749823101029 Compatible with GM Column Yes Fuse Block Included Yes Ignition Key Location Dash Fuse Style ATO/ATC Harness Length Extra-Long Reviews There is no way I would go anywhere else for my parts. Rated by Rich with the 48 on December 14, 2021 Summary: I am not done yet, but with the directions and the easy to read wires it going smooth ! Pros: I love how painless it really is !!! Yes, I recommend this product. yes! Rated by Joe on August 18, 2021 Summary: easy to install.................. Cons: dig it ,,works awesome supper good Yes, I recommend this product. Worked perfectly for my project Rated by Lou Fig1 on March 29, 2021 Summary: I am putting a Buick 215/Ford T5 into a 1975 MGB. I completely stripped out the original wiring and used this kit to rewire the entire car.... was SUPER happy with the kit. Yes, I recommend this product. Awesome wiring kit Rated by Steve T on March 24, 2021 Summary: Used this in a 1928 Dodge. Works great! Yes, I recommend this product. It really was painless Rated by Jake on March 09, 2021 Summary: Everything comes marked very well. Definitely worth the money Yes, I recommend this product. Related Items / Suggested Parts Painless Performance 10308 18 Circuit Modular Wiring Harness 12-Circuit Mini-Fuse Universal Hot Rod Wiring Harness Kit Painless Wiring 10201 GM 28 Circuit Wiring Harness Titan Tools 11477 Ratcheting Wire Terminal Crimper Titan Tools 11475 Self Adjusting Wire Stripper 22-Circuit Universal Automotive Aftermarket Wiring Harness Kit Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.