How to Connect 5 Wires on Trailer to 4-Way Connector
Updated 08/13/2022 | Published 08/12/2022 >
Products Featured in This Question
Question:
Trailer has a ‘wishbone’ 5 wire flat four connector. The ground ‘lug’ has failed. How does on wire the five wires of the trailer to the four wires of the replacement connector?
asked by: Keith
Expert Reply:
For your application I recommend picking up the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector # 002402 because it has the 2 brown wires so your installation will be really simple. Just use heat shrink butt connectors like part # DW05743-5 for the standard wires and add a ring terminal like part # DW05737-1 for the ground wire. If you already have a 4-Way connector with just 4 wires then you'll combine the ends of the 2 brown wires and connect them to the running light pin on your 4-Way.
Attached are some review videos for you to check out.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Front Mount Hitch
- Q&A: How to Adapt a 4 Way Flat Into A 5 Way Flat
- Shop: Draw-Tite Front Mount Trailer Hitch Receiver - Custom Fit - 2"
- Shop: Curt Front Mount Trailer Hitch Receiver - Custom Fit - 2"
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Video: Ultimate Overview of the Curt Trailer Connector Adapter
- Video: Let’s Check Out the Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Vehicle Tow Bar Wiring
- Shop: Trailer Wiring
- Shop: Deka Ring Terminal - Heat Shrink - 16-14 Gauge - 1/4" Ring ID - Nylon Insulation - Blue - Qty 1
- Search Results: 53108a1
- Q&A: How To Install 7-Way Trailer Connector On 2015 Jeep Wrangler Unlimited
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Trailer Wiring Diagrams
- Search Results: static/images/styles/checksvg
- Search Results: 53108a trailer plug
- Q&A: Wiring New 4-Way Connector on Trailer with 5 Wires
- Q&A: Installing 4-Way Flat Connector on Trailer with 3 Wires
- Q&A: Will a Trailer 4-Way Plug Into a Vehicle 5-Way Without Adapter
- Q&A: Why Does 4-Pin Trailer Wiring Have 5 Wires
- Q&A: Trailer Plug is a 4-Way Flat But there are 6 Wires
- Article: Trailer Lighting Requirements
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Best Bike Racks for Electric Bikes


