Phillips Cable SAE GPT Primary Wire - Automotive & Marine Electrical Wire

Phillips Cable SAE GPT Primary Wire is a professional-grade, single-conductor electrical wire engineered for general-purpose low-voltage wiring across automotive, marine, RV, and powersports applications. Built to SAE Type GPT (General Purpose Thermoplastic) standards and fully compliant with SAE J1128, this wire line is a trusted solution for OEM technicians, marine electricians, fleet maintenance professionals, and experienced DIYers who demand consistent, reliable electrical performance in real-world conditions.

The stranded soft annealed copper conductor construction delivers outstanding flexibility, making this wire easy to route through tight chassis runs, around corners, through grommets, and along complex hull or firewall paths without compromising conductivity or current-carrying capacity. The smooth, concentric PVC jacket strips cleanly and slides easily through loom or conduit, while offering meaningful resistance to abrasion, grease, oil, acids, and fuels — making it well-suited for engine bays, bilge areas, and exposed outdoor enclosures.

Key Features:

• SAE J1128 GPT Certified — Meets SAE International's standard for low-voltage primary cable, rated for use in both OEM and aftermarket electrical applications
• Soft Annealed Copper Conductors — Stranded construction provides excellent flexibility and high current-carrying capacity for dependable, long-lasting circuit performance
• Chemical-Resistant PVC Insulation — Resists acids, greases, oils, and fuels for reliable performance in engine compartments, bilges, and outdoor installations
• Smooth Concentric Jacket — Strips cleanly and passes through conduit or wire loom with minimal friction for faster, cleaner installations
• Good Abrasion Resistance — Durable jacket withstands physical wear during routing and in high-vibration environments
• Color-Coded Insulation — Available in multiple colors for clean, professional circuit identification and organized, traceable wiring harnesses
• Wide Gauge Selection — Offered across a comprehensive range of AWG sizes to accommodate both low- and high-amperage circuits
• Flexible Packaging Options — Available in retail spool formats for convenient workshop use and easy on-the-job dispensing

For over 90 years, Phillips Industries has been a leading developer and manufacturer of electrical components for commercial trucks and trailers, supplying virtually every major tractor and trailer manufacturer in the U.S. — with more than half of all trailers manufactured in North America fitted with at least one Phillips part. That same heritage of durability and engineering excellence carries through to every spool of GPT Primary Wire in this product line.

Whether building a wiring harness from scratch, repairing existing circuits, or integrating aftermarket accessories, Phillips Cable SAE GPT Primary Wire delivers the consistent quality and performance that professionals and serious DIYers depend on across automotive, marine, RV, and powersports applications.