Recommended 4-Way Flat Wiring Harness with 30 Feet of Wiring for Trailer
Updated 09/29/2025 | Published 09/09/2025 >
Question:
Im looking for a flat 4 pole wiring harness that uses 14-16 gauge wire with a length of at least 30 feet. Suggestions. thanks
asked by: Keith
0
Expert Reply:
Hey Keith, thanks for reaching out!
I see you already found and ordered the 35 Ft 4-Way Trailer Wiring Harness # A35W42B, which is exactly what I was going to recommend!
Are you building out a trailer? Or did you just want to run all new lighting for a current trailer?
expert reply by:
Jon G
0
Product Page this Question was Asked From
35 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 42" Ground
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 4 Flat
- Plug and Lead
- Optronics
more information >
Continue Researching
- Article: Trailer Wiring Diagrams
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Trailer Lighting Requirements
- Q&A: Why Does 4-Pin Trailer Wiring Have 5 Wires
- Q&A: Recommended Hitch for a 2026 Subaru Crosstrek Wilderness
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Circuit Tester for Testing Trailer wiring Circuits
- Q&A: Wishbone Trailer Wiring Harness to Run 2 Sets of Trailer Lights
- Q&A: Wiring New 4-Way Connector on Trailer with 5 Wires
- Q&A: What Gauge Wire does 4-Way Trailer Wiring Use
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Replacement 7-Way and Trailer Light Wiring for a 32' Gooseneck Trailer
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: How to Bleed Your Trailer Surge Brakes


Jon G.
9/29/2025
Hey Keith, did the 35 Ft 4-Way Trailer Wiring Harness work out for your project? I'm curious to know if it met your needs because it could help others looking for similar solutions.