What Gauge Wire Is Used On the Hopkins Endurance 4-Way Flat Trailer Wiring Harness?

Helpful Expert Reply:

The Hopkins Endurance 4-Way Flat Trailer Wiring Harness - 20' Long # HM48240 uses 18 gauge wire for the 3 lighting functions and 16 gauge for the ground wire. This is standard size wire for a 4-way flat harness, but the ergonomic grip on the connector for the easy pull disconnection is what sets this harness apart from others. I recommend using the Deka Heat Shrink Butt Connector - 22-18 Gauge - Nylon Insulation - Red - Qty 10 # DW05743-10 for your light connections.