- New
A10-4401 by Valterra is a 4-way flat wiring harness designed for the trailer side of a towing electrical connection. With a 12-inch (1-foot) wire lead, it provides a compact connection for the trailer’s lighting circuits. The four wires serve the left turn signal and brake lights, right turn signal and brake lights, tail lights, and ground. Its molded flat connector is suitable for compatible trailer wiring setups. Verify the connector type and wiring configuration before installation.