Year Make Model | Painless Performance
Made in the USA
Closed Saturdays
Easy To Read Printed Wiring
21 Circuit Pro Street Chassis Harness  By Painless Performance
Made In USA
P/N 50002 $324.99
21 Circuit Pro Street Chassis Harness



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  • App
  • Specs

If you want to keep your race car streetable and want to use all of your factory switches instead of a switch panel, this 21 circuit harness is for you. As with all of our chassis harnesses this kit has all the wires labeled and is pre terminated at the fuse block for easy installation. This harness includes an optional connector if you want to use a GM column mounted ignition switch. Also Included is a terminal assortment kit, with the necessary connectors for your turn signal switch, headlights, and alternator. Each wire is custom printed with the circuit identification as well as using GM color codes for easy installation.  



WarningProp 65 Warning
Hazardous Material Warning

WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit

Link to P/N:
Make: "Relay Bank"
Model: "Powerbraid Chassis" "Tool"
Engine: Carbureted or Any Stand Alone Fuel Injection
Trans.: Any

Number of Circuits: 21 Circuits - 12 Fuses w/ Horn Relay
Harness Length: Universal
Fuse Type: Blade & Maxi Fuse
Firewall Passthrough: Grommet
Color Code Based:  GM
Circuit Designations: Printed on Wires

This harness includes these circuits:

  1. Accessory #1
  2. Accessory #2
  3. Brake Lights
  4. Charging
  5. Dome Light
  6. Electric Fuel Pump #1 
  7. Electric Fuel Pump #2
  8. Electric Water Pump 
  9. Emergency Flashers
  10. Fan Relay Activation Power
  11. Fused Power Source
  12. Headlights
  13. Horn
  14. Ignition Coil
  15. Park Lights
  16. Radio and Gauges B+ *
  17. Starting
  18. Tail Lights
  19. Third Brake Light
  20. Turn Signals
  21. Wipers 

* Including wires for:
Fuel Gauge
Oil Gauge
Temperature Gauge