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:

1. A/C and Heat
2. Accessory / Cigarette Lighter
3. Backup Lights
4. Brake Lights
5. Charging
6. Dome Light
7. Electric Choke
8. Emergency Flashers
9. Fan Relay Activation Power
10. Fused Power Source
11. Headlights
12. Horn (Relay)
13. Ignition Coil
14. Instrument Panel Lighting and Gauges*
15. Park Lights
16. Radio/Clock (Constant and Switched) 
17. Starting
18. Tail Lights
19. Third Brake Light
20. Turn Signals
21. Wipers

* Including Wires For:
Fuel Gauge
Oil Gauge
Tachometer
Temperature Gauge
Voltmeter

This harness includes circuits for:

1. A/C and Heat
2. Accessory / Cigarette Lighter
3. Backup Lights
4. Brake Lights
5. Charging
6. Dome Light
7. Electric Choke
8. Emergency Flashers
9. Fan Relay Activation Power
10. Fused Power Source
11. Headlights
12. Horn (Relay)
13. Ignition Coil
14. Instrument Panel Lighting and Gauges*
15. Park Lights
16. Radio/Clock (Constant and Switched) 
17. Starting
18. Tail Lights
19. Third Brake Light
20. Turn Signals
21. Wipers

* Including Wires For:
Fuel Gauge
Oil Gauge
Tachometer
Temperature Gauge
Voltmeter