4 PIN TRAILER CONNECTOR 4 WIRED TRAILER WIRING Trailer wiring TRAILER CONNECTOR TRAILER PLUG 4-PIN TRAILER CONNECTOR Connections with existing wiring to ensure connections between both vehicle and trailer. The loop cable can also be used as an extension of the existing connector. The 4-way flat output combines tail lights, brake lights and turn signals. Built with connected wires for easier installation. PACKAGING LIST 1 x 4-wire flat extension cable 4-way flat plug connector for trailer 4 WIRED TRAILER WIRING The most commonly used trailer is a 4-wire flat trailer. You can find it on a small boat usability snowmobile and small caravans where turn right/brake turn/brake to the left /marker lights and grounding are needed. These connectors are designed and manufactured to provide a reliable connection every time you are in a trailer. TRAILER WIRING Color: shown in pictures. Material: plastic and copper. Size: approx. 83 x 3 x 1,5 cm/ 32,7 x 1,2 x 0,6 inches (L x W x H ). Waterproof: yes. Connections with existing wiring to ensure connections between both vehicle and trailer. The loop cable can also be used as an extension of an existing connector. 4-way flat output combines lights, brake lights and turn signals. Constructed with connected wires for easier installation.