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Black 18 AWG automotive primary wire on 100 ft spool

SOUTHWIRE COMPANY

SOUTHWIRE COMPANY 55667323 18 AWG Automotive Primary Wire 100 ft Black

SKU CH-TZB2-7G1Q4

Single-conductor 18 AWG stranded copper wire with PVC insulation, rated 60 V, supplied in a 100 ft black spool for automotive primary circuits

  • TypeAuto
  • 18 AWG copper conductor delivers reliable low-voltage power
  • 100-foot spool provides ample length for vehicle wiring jobs
  • PVC insulation resists abrasion and automotive fluids
  • Single-stranded design simplifies routing through tight spaces
  • Rated for 60 V automotive primary circuits

Suitable automotive circuits

This 18 AWG stranded copper wire is rated for 60 V automotive primary circuits. The GPT-designated PVC insulation resists oil, acid and abrasion in engine compartments. A 100 ft spool in black supports long runs without splices. Ideal for low-voltage lighting, accessory feeds and sensor wiring.

Installers and DIY restorers

Technicians rewiring classic vehicles or adding aftermarket accessories will appreciate the flexible stranding and durable jacket. Shops needing colour-coded looms should note this reel is supplied only in black. Buyers who want more conductors in a single jacket or a higher voltage rating must select a different product type.

Voltage rating decides fit

The 60 V limit is the single specification that determines whether this wire suits the circuit. Verify every application stays within that rating before installation. Exceeding it risks insulation breakdown and electrical failure. Match the voltage requirement to this figure and the part will perform as specified.

Highlights

  • 18 AWG copper conductor delivers reliable low-voltage power
  • 100-foot spool provides ample length for vehicle wiring jobs
  • PVC insulation resists abrasion and automotive fluids
  • Single-stranded design simplifies routing through tight spaces
  • Rated for 60 V automotive primary circuits

Specifications

BrandSouthwire Company
TypeAuto

Questions about this item

How do I strip and connect the 18 AWG stranded copper conductor without damaging the strands?

Use a precision stripper set for 18 AWG to remove the PVC insulation cleanly; twist all strands tightly before crimping or soldering so no loose strands cause a high-resistance joint.

When should I replace this GPT primary wire in a vehicle harness?

Replace it if the PVC jacket shows cracking, abrasion, or heat discoloration, or if a multimeter reads higher than expected resistance across a 100 ft run indicating conductor fatigue.

What is the maximum continuous voltage I can apply to this 60 V rated automotive primary wire?

The wire is rated for 60 V maximum; sustained operation above that voltage can break down the PVC insulation and create a shock or fire hazard.

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