Y-Harness Connector: 4 pin trailer wiring harness adapter features wishbone design, widely fits for rewiring trailer that allows 2 brown wires running left and right taillights simultaneously; No need for splicing other wires Enough length: 50 feet male 4 flat wire and 2.75 feet Ground wiring is long enough to wire a trailer from the start, provides plenty of extra length for a flexible installation Color coded wires: 4 way 5 wire trailer side flat connector equips with color code wiring for a simple installation, you can easily splice into existing trailer wiring to connect the brake lights, turn signals and left and right side taillights Durable Construction: 4 pin flat 5 wire harness kit use thickened PVC wire coating materials for anti-corrosion, pure copper wires for good conductivity, and is well protected by a black nylon net tube, ensure long service life Wide Application: 4 pin 5 wire trailer connector replacement is designed to match industry-standard 4-way flat sockets, provides a male plug for your trailer and can be used to replace a worn out, broken wire on a wide variety of trailers 4 Wire Flat Trailer Side Y-Harness Connector 4 Pin Male trailer wiring Extension kit with 18 AWG Color Coded Wiring Wishbone Style Harness perfects for trailers under and over 80" in width. 4 flat trailer harness is a safe and straight-forward kit designed to simplify trailer light installations.