Establishes a stable power connection between motorhomes or campers and accessories, enabling smooth signal and power transfer during towing and providing reliable electricity for outdoor activities like fishing and picnics. Multiple length options to fit different trailer and vehicle distances, ensuring the right fit for various setups. The plug structure is user friendly, allowing easy installation without professional assistance. Weather resistant and corrosion proof construction for long lasting performance in diverse environments. 7 pin trailer wiring harness delivers reliable power transmission and is designed to be compatible with a wide range of vehicles, including cars and trucks, making it an essential accessory for seamless connectivity. Key features and compatibility Harness type: 7pin trailer wiring harness Length options: available in multiple lengths to suit different distances Construction: weather resistant and corrosion proof Installation: user friendly plug design for easy, noprofessionalinstallation setup Vehicle compatibility: broad compatibility with cars, trucks, and other towing vehicles Use scenarios Weekend camping with a motorhome towing a trailer or camper, providing stable power to exterior lighting and accessories and ensuring uninterrupted electricity for camping gear and devices. Fishing trips or picnics where portable fridges, lighting, and charging devices require reliable power while parked or during outdoor activities. Long road trips with towed equipment, ensuring continuous power and signaling transmission to the trailer for safe towing and seamless connectivity between tow vehicle and trailer systems.