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  • 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
*Includes Wires For:
Fuel Gauge
Oil Gauge
Tachometer
Temperature Gauge
Voltmeter
Connectors Included:
GM Steering Column Turn Switch and Ignition Switch
Dimmer Switch
(2) 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
Specifications:

Type
21 Circuit
Circuit Quantity
21
Fuse Block Included
Yes
Fuse Block Location
Front
Fuse Style
ATO/ATC
Ignition Key Location
Column
Quantity
Sold as a kit
Harness Length
Extra-long
  • 
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
*Includes Wires For:
Fuel Gauge
Oil Gauge
Tachometer
Temperature Gauge
Voltmeter
Connectors Included:
GM Steering Column Turn Switch and Ignition Switch
Dimmer Switch
(2) 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
Specifications:

Type
21 Circuit
Circuit Quantity
21
Fuse Block Included
Yes
Fuse Block Location
Front
Fuse Style
ATO/ATC
Ignition Key Location
Column
Quantity
Sold as a kit
Harness Length
Extra-long
  • The Highest Quality Wire You Can Buy:
Painless uses high-temperature, abrasion-resistant TXL wire which has twice the voltage rating of standard, general purpose wire. It withstands up to 275° and does not kink.

Compact, Corrosion-Resistant, OE-Style Fuse Block:
Features modern blade-type fuses and clearly labeled circuits.

Wiring Preterminated to Fuse Block:
Wires are preprinted with the application and GM color-coded.

Superior Circuit Protection with 50 amp Maxi-Fuse:
Unlike a fusible link that melts during an electrical short, the easy-to-install large-bladed Maxi-Fuse is designed for high-amperage applications.

Everything You Need...
Nothing but the best is included: fuses, flashers, relay, tach leads, mounting brackets, terminal ends, wire ties, and grommets. .
  • 
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
*Includes Wires For:
Fuel Gauge
Oil Gauge
Tachometer
Temperature Gauge
Voltmeter
Connectors Included:
GM Steering Column Turn Switch and Ignition Switch
Dimmer Switch
(2) 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
Specifications:

Type
21 Circuit
Circuit Quantity
21
Fuse Block Included
Yes
Fuse Block Location
Front
Fuse Style
ATO/ATC
Ignition Key Location
Column
Quantity
Sold as a kit
Harness Length
Extra-long
  • The Highest Quality Wire You Can Buy:
Painless uses high-temperature, abrasion-resistant TXL wire which has twice the voltage rating of standard, general purpose wire. It withstands up to 275° and does not kink.

Compact, Corrosion-Resistant, OE-Style Fuse Block:
Features modern blade-type fuses and clearly labeled circuits.

Wiring Preterminated to Fuse Block:
Wires are preprinted with the application and GM color-coded.

Superior Circuit Protection with 50 amp Maxi-Fuse:
Unlike a fusible link that melts during an electrical short, the easy-to-install large-bladed Maxi-Fuse is designed for high-amperage applications.

Everything You Need...
Nothing but the best is included: fuses, flashers, relay, tach leads, mounting brackets, terminal ends, wire ties, and grommets. .
  • 
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
*Includes Wires For:
Fuel Gauge
Oil Gauge
Tachometer
Temperature Gauge
Voltmeter
Connectors Included:
GM Steering Column Turn Switch and Ignition Switch
Dimmer Switch
(2) 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
Specifications:

Type
21 Circuit
Circuit Quantity
21
Fuse Block Included
Yes
Fuse Block Location
Front
Fuse Style
ATO/ATC
Ignition Key Location
Column
Quantity
Sold as a kit
Harness Length
Extra-long

21-Circuit Classic Chassis Harness

$599.99 $469.99
(You save $130.00)
SKU:
LSXE.10101.PW091
Availability:
In stock
Gift Wrapping:
Options available
Quantity:

Product Description

  • Customizable
  • The Highest Quality Wire You Can Buy:
    Painless uses high-temperature, abrasion-resistant TXL wire which has twice the voltage rating of standard, general purpose wire. It withstands up to 275° and does not kink.

  • Compact, Corrosion-Resistant, OE-Style Fuse Block:
    Features modern blade-type fuses and clearly labeled circuits.

  • Wiring Preterminated to Fuse Block:
    Wires are preprinted with the application and GM color-coded.

  • Superior Circuit Protection with 50 amp Maxi-Fuse:
    Unlike a fusible link that melts during an electrical short, the easy-to-install large-bladed Maxi-Fuse is designed for high-amperage applications.

  • Everything You Need...
    Nothing but the best is included: fuses, flashers, relay, tach leads, mounting brackets, terminal ends, wire ties, and grommets. .
Number of Circuits: 21 Circuit - 12 Fuses w/ Horn Relay and Maxi Fuse

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
*Includes Wires For:
  • Fuel Gauge
  • Oil Gauge
  • Tachometer
  • Temperature Gauge
  • Voltmeter
Connectors Included:
  • GM Steering Column Turn Switch and Ignition Switch
  • Dimmer Switch
  • (2) 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

Specifications:

  • Type
  • 21 Circuit
  • Circuit Quantity
  • 21
  • Fuse Block Included
  • Yes
  • Fuse Block Location
  • Front
  • Fuse Style
  • ATO/ATC
  • Ignition Key Location
  • Column
  • Quantity
  • Sold as a kit
  • Harness Length
  • Extra-long

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Warranty Information

This 21 circuit kit is our most widely used customizable chassis harness. You'll find that it's easily adaptable to almost any vehicle. This kit comes with a preterminated GM column mounted ignition switch connector. 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.

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