Southwire 55666623 Automotive Primary Wire 16 Awg 100 Ft

Product Description

The SOUTHWIRE 55666623 is a 16 AWG automotive primary wire designed for use in surface vehicle electrical systems. This 100-foot spool delivers dependable current-carrying capacity in a flexible, PVC-insulated construction rated for up to 60 volts and a maximum operating temperature of 85 degrees F. The black insulation supports color-coded wiring schemes, and the 19/29 strand count provides good flexibility for routing through vehicle harnesses, panels, and chassis conduit. Automotive electricians and 12-volt installation specialists use this wire for accessory hookups, relay circuits, lighting runs, and general vehicle wiring tasks.

This wire is suited for low-voltage DC circuits found in passenger vehicles, light trucks, trailers, and off-road equipment. The SAE-rated construction meets the electrical standards expected in surface vehicle applications. The spool package format makes it practical for shop use or repeated service calls where consistent wire gauge and color are needed across multiple jobs. At 16 AWG, this wire handles typical accessory and auxiliary circuit loads without excessive voltage drop over moderate run lengths.

Key Features

• 16 AWG conductor with 19/29 strand count for flexibility in tight routing paths
• PVC outer insulation rated for up to 85 degrees F maximum temperature
• 60-volt rating suitable for standard 12-volt and 24-volt DC vehicle circuits
• Black color supports organized, color-coded vehicle wiring installations
• 100-foot spool format for shop stock or multi-job use
• SAE-compliant construction for surface vehicle electrical systems

Compatibility

Designed as an OEM-style and aftermarket wire for surface vehicle electrical systems including passenger cars, light trucks, trailers, and similar 12-volt or 24-volt DC applications requiring 16 AWG primary wire.

Installation Notes

Installation is typically performed by automotive electricians or 12-volt accessories specialists. Disconnect the vehicle battery before beginning any wiring work to eliminate short-circuit risk. Use the appropriate crimp terminals, butt connectors, or solder joints rated for the wire gauge, and protect all connections with heat-shrink or electrical tape. Route wire away from heat sources, sharp edges, and moving components, and secure runs with proper automotive loom or conduit.