4 Wire Trailer Wiring To 7 Wire. We recommend these standards because they are pretty universal. Having the various pinout diagrams available is vital to troubleshooting and/or repairing truck and trailer wiring.
Connectors wire directly into your vehicle's factory tail light to allow you to connect a trailer lighting and wiring system directly into your vehicle. Verify the harness color codes at each tail light. Wiring up a truck for trailer towing isn't as hard as it looks; many new trucks come prewired from the factory, and there are kits that make the operation plug and play.
Wiring up a truck for trailer towing isn't as hard as it looks; many new trucks come prewired from the factory, and there are kits that make the operation plug and play.
The metal-to-metal contact in the hitch is not.
This is for the trailer only. We recommend these standards because they are pretty universal. Manufactured with a PVC over-all jacket outside and general purpose primary wire inside.