4 WAY FLAT & 7 WAY ROUND TRAILER WIRING TESTER LIGHT BRAKE TAIL TURN SIGNAL SET
$14.98
7 Way 6 Function Trailer Light Tester 7-way flat tester can check all your trailer light circuits on your vehicle. If the LED lights light up on this plug, you know it is not the vehicle.4 Way Trailer Light Tester.
