16.5 Inch Pure Copper 4 Pin 5 Wire Trailer Wiring Harness Male Plug, 4-Way Flat Trailer Side Lamp Replacement Connector, Universal Towing Wire Plug for Trailer Hitch, Truck, RV

16.5 Inch Pure Copper 4 Pin 5 Wire Trailer Wiring Harness Male End Replacement Connector, universal 4-way flat trail lamp plug for trailer hitch, ship, RV, truck multi-purpose towing light accessories. Our trailer wiring harness comes with 5 color sorted pure copper wires: White, Brown, Brown, Yellow, Green. Built with standard 4 pin flat male plug, it acts as a perfect direct replacement for old, cracked or non-functional factory trailer wiring plugs. Full pure copper wire core provides excellent electrical conductivity to maintain stable lighting performance for trailer turn signals, brake lights and running lights. The thickened anti-corrosion plastic plug shell is waterproof and wear-resistant, suitable for long-term outdoor marine, camping and cargo hauling use. This 4 pin 5 wire trailer male connector works for utility trailers, cargo trailers, boats, marine ships, RV campers, pickup trucks and all vehicles equipped with standard 4-way flat trailer hitch light system. Pre-stripped wire ends support fast DIY wiring without auxiliary stripping tools, an essential towing wiring accessory for daily hauling and outdoor travel.

• High Conductivity Pure Copper Wires: This 16.5-inch trailer wiring harness uses full pure copper conductors with low resistance, delivering stable power supply. It avoids overheating during long-distance towing and keeps trailer brake lights, turn signals and running lights bright & consistent.
• Standard 4 Pin 5 Color-Coded Wire Layout: Standard 4-way flat male plug matched with 5 sorted wires (White, Brown, Brown, Yellow, Green). Clear color sorting greatly speeds up DIY wiring, ideal direct replacement for broken or aging original trailer lamp connectors
• Wear-Resistant Waterproof Plug Housing: Thickened rigid plastic shell is anti-corrosion, waterproof and abrasion resistant, capable of withstanding all harsh outdoor weather like rain, mud and snow for long-term outdoor towing work.
• Wide Universal Compatibility: Multi-purpose towing connector fits most standard trailer hitch systems, utility trailers, cargo trailers, marine boats, RV campers and pickup trucks; compatible with all mainstream 4-way flat trailer light sockets.
• Pre-Stripped Wire Terminals for Easy Installation: The wire ends are pre-stripped to expose copper strands, no extra wire stripping tools required, allowing quick connection and modification without complicated operations.