- KA-6786A 4-Pin Trailer Light Tester
- 4-Pin Small Size Trailer Light Tester & Circuit Troubleshooter for US type.
- Plug tester into vehicle’s 4-pin connector and operate vehicle's turn signals, lights and brakes. The green light will illuminate if there is power connection.
- Fits 4-Pin Small Size Trailer Light Tester & Circuit Troubleshooter.
- Quickly and easily see if your trailer wiring is properly installed on your vehicle
- No Batteries Required.
- LED light Indication
- Test right, left, turn, and brake lights for proper function.
- Easy to carry, Compact Design Fits in your pocket