Key benefits - Provides a long, reliable wiring solution for boat trailers with waterproof and sealed protection to prevent short circuits. - No need to splice or cut wires thanks to a plug-and-play design with included lead lengths. - SAE J1128 compliant 4-pin flat connector ensures compatibility with standard trailer lighting systems and simple installation. - Clear wire color code makes wiring straightforward and reduces the risk of incorrect connections. Product features and specifications - 36 ft Boat Trailer Wiring Harness Kit - Built with high quality 18 gauge wires - Fully sealed and waterproof to protect electronics from moisture and corrosion - 36 ft Trailer Wiring Kit - Includes 28 ft male lead and 8 ft female lead - Flat 4 trailer wiring splits at the trailer tongue and runs along each side of the trailer - Provides sufficient cable length without splicing - 4 Pin trailer wiring harness - Plugs do not require cutting, splicing, or replacement - Powers tail lights, turn signals, brake lights, and ground connections - 4 way 4 pin flat connector in accordance with SAE J1128 - Wire color guidance - White wire: ground - Yellow wire: driver side stop/turn (left stop/turn) - Brown wire: taillight run - Green wire: passenger side stop/turn (right stop/turn) What makes it stand out - Long, ready-to-install length with split routing along trailer sides minimizes the need for field splicing and reduces installation time. - Waterproof and sealed construction protects sensitive lighting electronics in marine environments and on wet roads. - SAE J1128 compliant 4-pin flat connector supports standard trailer lighting systems, helping ensure reliable operation and broad compatibility. Compatibility and use scenarios - Boat trailers and other 4-pin trailer lighting systems that require a plug-and-play harness without splicing. - Replacing worn or damaged wiring where a complete, ready-to-use kit is preferred for quick maintenance. - New trailer installations where a long, split routing harness simplifies routing along the trailer sides from the tongue. Use scenario examples - Scenario 1: You are wiring a boat trailer with a damaged harness. You install this 36 ft kit, route the 28 ft male lead along one side and the 8 ft female lead along the other, connect to the existing lights, and avoid any splicing due to the split design. - Scenario 2: You are outfitting a long trailer that requires a 4-pin flat connection. The kit’s SAE J1128 compliant plugs provide plug-and-play compatibility with your trailer’s lighting system, and the color-coded wires make correct connections straightforward. - Scenario 3: You are performing a marine trailer upgrade. The waterproof, sealed construction helps protect the lighting circuit from water exposure during launch, retrieval, and coastal operation. Notes - 18 gauge wiring provides a balance of flexibility and current capacity suitable for standard trailer lighting circuits. - The 36 ft total length with a split at the tongue is designed to minimize splicing while accommodating longer trailers.