All Star Truck Parts 7-Way Multi-Gauge Trailer Cable 50 ft — Heavy-Duty CCA, Weatherproof PVC

Heavy-duty 7-conductor trailer cable (50 ft) with color-coded 14/12/10 AWG copper-clad aluminum conductors, weatherproof PVC jacket, and DOT/SAE compatibility for RVs, campers, and tow vehicles.

This 50-foot multi-gauge 7-way cable from All Star Truck Parts is built to handle towing electrical needs across trailers, RVs, caravans and food trucks. It combines stranded copper-clad aluminum conductors in multiple gauges with a flexible outer jacket to resist moisture, oils and extreme temperatures. The cable is color-coded to match standard 7-way pinouts and meets SAE-style RV wiring expectations for easier installation and dependable connectivity on the road.

How is the cable wired and why do the different gauges matter?

The cable contains seven individually insulated conductors, each assigned to a common trailer function. Thicker gauges (10 AWG) carry higher-current circuits while 14 AWG and 12 AWG handle lighting and auxiliary circuits, which reduces voltage drop and heat on demanding circuits.

• Black = 14 AWG (common/power line)
• White = 10 AWG (ground/heavy return)
• Red = 10 AWG (hot/auxiliary or backup)
• Green = 14 AWG (right turn/stop)
• Yellow = 14 AWG (left turn/stop)
• Blue = 12 AWG (brake controller/aux signal)
• Brown = 14 AWG (taillights/marker lights)

Will this cable survive outdoor use and harsh climates?

Yes. The cable jacket and individual insulation are designed to withstand wide temperature swings, oils and diluted acids commonly found in vehicle environments. The flexible PVC outer sheath helps prevent cracking and abrasion while stranded conductors maintain flexibility in cold weather.

• Temperature range rated from -40°C to +105°C
• Flexible PVC sheath resists petrol, lubricants and light corrosives
• Individually jacketed cores reduce moisture ingress and short risks

How does copper-clad aluminum (CCA) perform compared to pure copper?

CCA uses an aluminum core with a copper coating to combine lower weight and cost with improved conductivity over bare aluminum. This cable’s heavier copper plating (approximately 30% copper coating) enhances connection reliability and reduces resistance versus thinner-coated alternatives, while keeping overall weight lower than pure copper bundles.

• Stranded CCA for flexibility and corrosion resistance at terminals
• Higher copper coating percentage for stronger electrical contact
• Meets traditional SAE/RV wiring conventions for compatibility

How simple is installation and what applications are best suited?

Color-coded conductors match standard 7-way trailer connectors, making mapping and termination straightforward for electricians or DIY installers. Use this cable to rewire or extend harnesses for RVs, campers, trailers, food trucks and other towed equipment where a weatherproof 7-way core is required.

• Designed for LED lighting, brake controllers and auxiliary circuits
• Works for RV trailers, caravans, food vans and utility trailers
• 50 ft roll provides plenty of length for routing and splicing

Who is this for: drivers, fleet maintainers and installers who need a robust 7-way trailer cord that balances conductivity, flexibility and weather resistance. It suits anyone rewiring a trailer harness, replacing a worn 7-way core, or building a custom tow cable where SAE-style pinouts and reliable outdoor performance matter. For questions about matching this cable to your connector or recommended crimp/terminal types, consult a qualified vehicle electrician or your trailer manufacturer’s wiring diagram.