4 Pin 5 Wire Trailer Wiring Harness, 18" 16AWG Pure Copper 4 Way Flat Plug | Y split wishbone design, pre-stripped tail line, quick DIY rewiring, fits trailer taillights, brake & turn signal lights

4 Pin 5 Wire Trailer Wiring Harness, 18 Inch 16AWG Pure Copper 4 Way Flat Plug Product Description 1. Core Specifications: Standard Universal Size & Structure This trailer wiring harness comes with a standard length of 18 inches and features a universal 4-pin 5-wire configuration paired with a mainstream 4-way flat plug. Equipped with color-coded wires and pre-stripped pigtails, it requires no extra wire stripping work. Adopting a standardized specification, it offers high universality and serves as an ideal replacement for old or damaged wiring, perfectly fitting the modification and maintenance of tail light wiring systems for most standard trailers. 2. Wide Compatibility: Multi-Vehicle & Multi-Scene Application Designed for strong compatibility, this 4-pin trailer harness works with a full range of trailer types, including utility trailers, boat trailers, ATV & UTV trailers, motorcycle trailers, horse trailers and various cargo trailers. It covers diverse application scenarios such as outdoor recreation, short-distance transportation and professional operation, meeting all your trailer wiring replacement and rewiring needs with one versatile kit. 3. Premium Material: Heavy-Duty & Long-Lasting Performance Built with 16AWG pure copper wires, the harness delivers superior conductivity and stable signal transmission, effectively avoiding light flickering and signal failure issues. The thickened outer PVC jacket features excellent resistance to abrasion, cracking, aging and harsh weather conditions. It can withstand intense sunlight, rain, snow and sand erosion in complex outdoor environments, greatly slowing down wire wear and extending the overall service life of the wiring harness. 4. Humanized Design: Fine Craftsmanship & Full Protection Adopting a practical Y-split structure, this harness perfectly matches the wiring needs of dual-side trailer taillights for neat and precise installation. The connector is designed with ergonomic anti-slip tabs for smooth plugging and unplugging, ensuring a tight and stable connection that prevents loose or power-off issues during driving. Equipped with a rubber dust cover, it provides effective waterproof and dustproof protection for the idle connector, blocking rainwater, dust and sediment intrusion to reduce failure risks. 5. User-Friendly Advantage: Easy DIY Installation & Time-Saving With clear color-coded wires and pre-stripped pigtails, this rewiring kit greatly simplifies splicing and wiring procedures. No professional skills or complicated tools are required. Even beginners can quickly finish accurate connection for brake lights, turn signals and left/right taillights via simple DIY operation. Featuring exquisite workmanship and sturdy construction, this durable harness solves common problems like aging, damage and malfunction of trailer light wiring. We also provide reliable after-sales support for worry-free use.

• This 18 Inch 4 pin trailer wiring harness features a practical Y-split structure, ideal for replacing old wiring or rewiring both-side taillights. The standard 4-way flat plug is compatible with most utility trailers, boat trailers, ATV and UTV trailers, also suitable for motorcycle, horse and various cargo trailers.
• Crafted with 16AWG pure copper wires, this heavy-duty trailer wiring harness delivers excellent conductivity and stable signal transmission. Thick PVC outer jacket shields wires against abrasion, aging and harsh weather for long-lasting performance.
• Built with ergonomic anti-slip tabs and a rubber dust cover, the 4 prong trailer plug ensures easy plugging and unplugging. The waterproof & dustproof design effectively protects the connector when not in use, greatly extending its service life.
• Equipped with color-coded trailer wire and pre-stripped pigtails, this rewiring kit simplifies splicing work. You can quickly connect brake lights, turn signals and left/right taillights without complicated operations, friendly for DIY installation.
• This 4-pin 5-wire trailer connector is finely crafted and durable. If you encounter any problems during installation or use, please contact us promptly and we will handle it as soon as possible