Southwire 55667323 18 Awg Automotive Primary Wire 100 Ft

Product Description

The SOUTHWIRE 55667323 is an 18 AWG automotive primary wire designed for use in surface vehicle electrical systems. It ships as a 100-foot spool with black PVC outer insulation and a 16/30 strand configuration, which provides the flexibility needed for routing through tight automotive and marine wiring runs. Rated at 60 volts with a maximum operating temperature of 85 degrees F, this wire meets SAE standards for primary wiring applications. The 0.093-inch outside diameter suits standard automotive terminals and connectors. Licensed electricians and auto technicians working on vehicle electrical systems are the typical installers.

This wire is suited for 12-volt and 24-volt surface vehicle electrical systems including cars, trucks, trailers, and similar mobile equipment. The black color coding supports conventional wiring identification practices in automotive harness work. The spool format makes it practical for shop use, allowing techs to cut to length for individual circuits such as accessory wiring, lighting circuits, and auxiliary power runs. It is not rated for submersion, high-heat underhood applications exceeding 85 degrees F, or line-voltage service.

Key Features

• 18 AWG conductor with 16/30 stranding for flexibility in routing
• PVC outer insulation rated to 85 degrees F maximum temperature
• 60-volt rating meets SAE automotive primary wire standards
• 0.093-inch outside diameter compatible with standard automotive terminals
• 100-foot spool format for shop cut-to-length use
• Black insulation for conventional color-coded wiring identification

Compatibility

Designed for use in surface vehicle electrical systems as an SAE-compliant automotive primary wire; suitable for 12-volt and 24-volt DC circuit wiring in automotive, trailer, and light equipment applications.

Installation Notes

Installation is typically performed by automotive technicians or electricians working on vehicle wiring systems. Disconnect the vehicle battery before making any wiring connections to prevent shorts or unintended circuit activation. Use proper crimp terminals rated for 18 AWG wire and ensure all connections are insulated and secured away from heat sources, moving parts, and abrasion points. Do not use this wire in applications exceeding its 60-volt or 85-degree-F ratings.