New 1962–1964 Chevrolet Impala Complete Classic Update Wiring Harness Kit

Upgrade your classic Chevrolet Impala with a modern wiring system designed for today's electrical demands.

The Classic Update Wiring Harness Kit is designed for restoration projects and custom builds that require additional circuits beyond the original factory wiring. This complete kit provides the essentials to rewire your vehicle from headlight to taillight while accommodating modern upgrades such as electronic fuel injection (EFI), aftermarket gauges, and other electrical accessories.

Features & Benefits

• Updated ATC fuse panel and fuses.

• Modern GXL automotive-grade wiring throughout.

• Wire functions labeled every 3–5 inches for easier installation.

• Pre-assembled dashboard harness with gauge cluster disconnect system.

• Compatible with original or aftermarket instruments.

• Engine and front lighting harness with extra-long leads for custom routing.

• Original-style bulkhead connectors included.

• Six-way power accessory connector for aftermarket accessories.

• Rear body wiring with extra-long leads.

• 175-amp MEGA fuse kit with 6-gauge charging cable.

• Supports high-output charging systems and internally regulated alternators.

• Original-replacement connectors, terminals, and lamp sockets.

• Headlight switch with 26-amp internal circuit breaker.

• New floor-mounted dimmer switch included.

• Compatible with 1969-and-newer GM steering column connectors, with mating connector and terminals included.

• Replacement ignition switch compatible with HEI and EFI conversions.

Designed for Classic Impala Builds

Whether you're restoring your Chevrolet Impala or upgrading to modern electrical components, this complete wiring harness provides a cleaner, more versatile electrical foundation for your project.