American Autowire - 1968 Forward Lamp Wire Harness-GM Truck - 22490
$288.80
DESCRIPTION
American Autowire - 1968 Forward Lamp Wire Harness-GM Truck - 22490
Restore your classic Chevy truck's electrical system with this 1968 Chevrolet Truck Front Light Wiring Harness from American Autowire.
Designed specifically for 1968 Chevrolet pickups equipped with factory warning lights and without side marker lamps, this Factory Fit replacement harness is intended for trucks retaining their original alternator with an external voltage regulator.
After decades of use, original wiring can become brittle, cracked, corroded, or damaged by previous electrical repairs. Replacing deteriorated wiring with an original-style harness helps restore electrical connections while maintaining your truck's factory wiring configuration.
American Autowire manufactures its Factory Fit harnesses according to original General Motors specifications. Each harness arrives fully assembled and taped, connects at the original firewall location, and follows factory-style routing through the engine compartment.
Whether you're restoring a 1968 Chevy C10, rebuilding a C20, or replacing damaged wiring on your classic Chevrolet pickup, this front light wiring harness provides an original-style replacement designed for your truck's electrical system.
Manufacturer: American Autowire
Manufacturer Part Number: 22490
Product Type: Front Light Wiring Harness
Product Line: Factory Fit Original Reproduction Wiring
Vehicle Year: 1968
Vehicle Application: Chevrolet Pickup Trucks
Instrumentation: Factory Warning Lights
Side Marker Configuration: Without Side Marker Lights
Alternator Configuration: Original Alternator with External Voltage Regulator
Style: Original-Style Replacement
Quantity: Sold Individually
Features
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Designed specifically for 1968 Chevrolet pickup trucks
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Compatible with factory warning-light instrumentation
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Designed for trucks without side marker lights
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Built for the original externally regulated alternator configuration
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Manufactured by American Autowire
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Part of the Factory Fit original reproduction wiring line
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Manufactured according to original GM specifications
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Fully assembled and taped for installation
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Connects at the original firewall harness location
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Follows original-style routing through the engine compartment
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Helps replace aging, damaged, or previously modified front lighting wiring
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Ideal for original-style Chevy C10 restorations
Vehicle Fitment
1968 Chevrolet C-Series – 2WD Trucks
Potential applications include:
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1968 Chevrolet C10
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1968 Chevrolet C20
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1968 Chevrolet C30
1968 Chevrolet K-Series – 4WD Trucks
Potential applications include:
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1968 Chevrolet K10
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1968 Chevrolet K20
Required Vehicle Configuration
This harness is designed for trucks equipped with:
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Factory warning-light instrumentation
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No side marker lights
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Original alternator with an external voltage regulator
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Compatible original-style firewall wiring connections
Important: American Autowire lists part 22490 for 1968 Chevrolet pickups. Verify compatibility with your specific truck model, instrumentation, lighting configuration, and charging system before ordering.
Designed for the Original Externally Regulated Alternator
One of the most important fitment details for American Autowire part 22490 is the charging system configuration.
Original External Voltage Regulator
This harness is designed for Chevrolet pickups retaining an original-style alternator with an external voltage regulator.
Unlike modified alternator-conversion harnesses, part 22490 maintains the original externally regulated charging system configuration.
What If My Truck Has an Internally Regulated Alternator?
If your truck has been converted to a compatible GM SI-series internally regulated alternator, American Autowire offers modified versions of this harness.
These include:
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22490DI: Driver-side internally regulated alternator
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22490PI: Passenger-side internally regulated alternator
Choosing the correct harness depends on your alternator type and mounting location.
Why Does the Alternator Configuration Matter?
Original externally regulated alternators and later internally regulated alternators require different wiring arrangements.
Selecting the correct harness helps ensure compatibility with your truck's charging system and reduces the need for unnecessary wiring modifications.
Designed for Factory Warning-Light Instrumentation
American Autowire offers different front light wiring harnesses depending on the original instrument panel configuration.
Factory Warning Lights
Part 22490 is specifically designed for trucks equipped with factory warning lights.
Trucks equipped with factory gauges require a different front light wiring harness.
Why Does Instrumentation Matter?
Factory gauges and warning lights have different electrical requirements.
Choosing the correct harness helps maintain compatibility with the truck's existing electrical system.
If your truck has been converted from warning lights to gauges, verify its current wiring configuration before ordering.
Designed for Trucks Without Side Marker Lights
American Autowire part 22490 is specifically listed for 1968 Chevrolet pickups without side marker lamps.
Why Does the Side Marker Configuration Matter?
Different front light wiring harnesses may be required depending on whether the truck is equipped with side marker lights.
A harness designed without side marker wiring may not provide the connections needed for trucks equipped with those lights.
If your truck has side marker lamps, select the appropriate harness for its electrical configuration.
Why Replace Your Chevy Truck's Front Light Wiring Harness?
After decades of use, original wiring can develop electrical problems caused by deteriorated insulation, corrosion, vibration, and previous repairs.
Replace Aging Factory Wiring
Original wiring insulation may become brittle or cracked, while electrical terminals and connectors can deteriorate over time.
Replacing the harness provides an alternative to repairing numerous damaged wires individually.
Restore Front Lighting Connections
American Autowire explains that most front light harnesses include circuits associated with:
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Headlights
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Parking Lights
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Front Turn Signals
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Horn and Horn Relay
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Charging System Connections
Exact circuit coverage varies by application. Consult your factory service manual to confirm the circuits included in your truck's harness.
Maintain Original-Style Wiring
American Autowire's Factory Fit products are designed for classic vehicle restorations where maintaining original-style electrical connections and routing is important.
Fully Assembled for Installation
The harness arrives assembled and taped, plugs into the original firewall location, and follows factory-style routing through the engine compartment.
Important Fitment & Installation Information
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Designed for 1968 Chevrolet pickup trucks only.
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Requires factory warning-light instrumentation.
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Specifically listed for trucks without side marker lights.
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Intended for an original alternator with an external voltage regulator.
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Trucks converted to internally regulated alternators may require a different harness.
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Trucks equipped with factory gauges require a different harness.
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Trucks equipped with side marker lights require a different wiring configuration.
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Verify original firewall connections and existing wiring before ordering.
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Vehicles with aftermarket electrical modifications may require additional installation work.
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Inspect electrical grounds, terminals, and related connections during installation.
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This is a front light wiring harness, not a complete vehicle wiring kit.
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Consult your factory service manual for installation instructions and circuit identification.
Frequently Asked Questions
Will this front light wiring harness fit my 1968 Chevy C10?
Yes, provided your 1968 Chevrolet C10 has factory warning lights, no side marker lights, and an original-style externally regulated alternator.
Does this harness fit a 1969 Chevy C10?
No. American Autowire lists part 22490 specifically for 1968 Chevrolet pickups.
For a 1969 truck, select a harness designed for its model year and electrical configuration.
Will this work on a 1968 Chevy K10 4x4?
American Autowire lists this harness for 1968 Chevrolet pickups. Verify your K10's original connections, instrumentation, side marker configuration, and charging system before ordering.
What is the difference between American Autowire 22490, 22490DI, and 22490PI?
These harnesses are intended for corresponding 1968 Chevrolet pickup applications equipped with factory warning lights and without side marker lights.
The primary difference is the alternator configuration:
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22490: Original alternator with external voltage regulator
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22490DI: Driver-side internally regulated alternator
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22490PI: Passenger-side internally regulated alternator
What is the difference between American Autowire 22490 and 22500?
Both harnesses are intended for Chevrolet pickups without side marker lights and with original externally regulated alternators.
However, they differ in instrumentation and model-year applications:
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22490: 1968 Chevrolet pickup with factory warning lights
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22500: 1968–1969 Chevrolet pickup with factory gauges
Will this harness work with an internally regulated alternator?
This harness is designed for the original externally regulated alternator configuration.
If your truck has been converted to an internally regulated alternator, consider the appropriate modified harness.
Is this harness designed for factory gauges?
No. Part 22490 is designed for trucks equipped with factory warning lights.
Does this harness include side marker light wiring?
No. This harness is specifically listed for trucks without side marker lights.
Does this harness come assembled?
Yes. American Autowire Factory Fit harnesses arrive fully assembled and taped.
Where does this harness connect?
It plugs into the original firewall harness location and follows factory-style routing through the engine compartment.
Will this fit a 1968 GMC pickup?
This specific part number is listed for Chevrolet pickups. GMC compatibility has not been confirmed.
Does this replace the entire truck wiring system?
No. This product replaces the front light wiring harness. Engine, dash, rear lighting, and other wiring harnesses are separate components.
Restore Your 1968 Chevy Truck's Electrical System
Whether you're replacing deteriorated front lighting wiring, restoring a classic C10, or maintaining the original charging system on your Chevrolet pickup, the American Autowire 22490 Front Light Wiring Harness provides an original-style replacement designed for your truck's factory electrical configuration.
Find the wiring harnesses, electrical components, and restoration parts you need at Tuckers Classic Auto Parts.
Helping Keep Classic Trucks on the Road Since 1993.