U-Haul 4-way Flat (tow vehicle side) wiring. Allows for hookup to trailers with 4-way flat wiring.
- For all 2-wire lighting systems (brake and turn signal on same circuit)
- Built-in green LED test lights make it a snap to verify proper installation and assist in diagnosing any trailer lighting difficulties
- Wiring connectors included
- Bonded and pre-labeled wires for clean and easy installation
Note: All products in this shopping category are available for store pickup only.