Southwire 55667223 Automotive Primary Wire 18 Awg 100 Ft

Product Description

The SOUTHWIRE 55667223 is an 18 AWG automotive primary wire designed for low-voltage wiring in surface vehicle electrical systems. Supplied on a 100-foot spool, this wire features PVC outer insulation rated for up to 85 degrees F and a 16/30 strand configuration that provides flexibility during routing and installation. The white jacket supports color-coded circuit identification, making it a practical choice for auto electricians, fleet service technicians, and custom vehicle builders working on power distribution, lighting, and accessory circuits. The outside diameter measures 0.093 inches, and the wire is rated at 60 volts.

This wire is suited for use in passenger vehicles, light trucks, trailers, and other surface vehicles where SAE-rated primary wire is specified. Common applications include adding aftermarket accessories, repairing or extending existing circuits, and building custom wiring harnesses. The 100-foot spool length provides enough material for multi-circuit jobs without excessive splicing. The white color is frequently used for lighting return paths, accessory circuits, or any run that benefits from a distinct, easily traced jacket color in a multi-conductor bundle.

Key Features

• 18 AWG stranded construction with 16/30 strand count for flexibility and fatigue resistance
• PVC outer insulation rated to 85 degrees F for under-hood and interior routing
• 60-volt rating suitable for standard 12-volt and 24-volt vehicle electrical systems
• White jacket enables color-coded circuit identification in multi-wire installations
• SAE-rated construction meets surface vehicle electrical system standards
• 100-foot spool package provides ample length for complete wiring jobs

Compatibility

Designed as an SAE-rated primary wire for use in surface vehicle electrical systems including passenger cars, light trucks, trailers, and similar applications requiring 18 AWG low-voltage wiring.

Installation Notes

Installation should be performed by a qualified auto electrician or vehicle electronics technician. Disconnect the vehicle battery before beginning any wiring work to eliminate shock and short-circuit risk. Secure wire runs with appropriate clips or loom to prevent chafing against metal edges, and size fuses or circuit breakers to the wire gauge per SAE and vehicle OEM guidelines. Avoid routing near high-heat exhaust components that could exceed the 85-degree F insulation rating.