The Power Products Primary Wire is the perfect choice for your wiring project. It meets or exceeds SAE J1128 & SAE J378 type GPT specifications, making it a reliable and durable choice. The tough thermoplastic insulation resists acid, oil and moisture, making it ideal for use in challenging spaces. The wire is easy to route and install, making it a great choice for any wiring job. FleetPride is your First Click in Heavy Duty®.