✨Premium Materials: Our trailer wiring harness is crafted from thickened PVC wire coating and high-quality copper wire. The outermost layer is reinforced with a black nylon net tube, extending the service life and effectively resisting adverse weather conditions. ✨4 Pin 5 Wire Trailer Wiring Harness: This trailer light connector is a replacement for a 4-flat trailer wiring connector. The 5-wire 4-pin harness trailer connector is designed to match industry standard 4-way flat sockets. ✨Perfect Size: The trailer light wire includes a 22ft male 4 flat wire and 2.5ft ground wire, providing ample length for flexible installation and trailer rewiring, simplifying the installation process. ✨Easy to Install: The 4-pin 5-wire trailer wiring harness features color-coded wiring for easy installation. It connects left and right side taillights, brake lights, and turn signals for efficient trailer rewiring. ✨Wide Application: This trailer side flat connector is suitable for various trailers, including marine boat trailers, ATV trailers, and cargo utility trailer hitches. Please note that trailers/tow trucks must have a 4-way plug and it is not compatible with motorcycle trailer wiring. Length:22Ft Connector Type:4 Pin 5 Wire Compatible Devices:Trailer RV Boat Wiring White Wire:Ground (Negative). Brown Wire:Left/Right Running Lights. Yellow Wire:Left Turn/Brake Lights. Green Wire:Right Turn/Brake Light. ★Product Function: This product is suitable for rewiring taillights, brake lights, and turn signals for various trailers (including boat trailers, RVs, ATVs, and utility trailers), ensuring stable and secure lighting signal connections in various weather and road conditions. Color: Black Material: plastic Package Contents: 1 x 22FT Trailer Wiring Harness Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.