How To Wire A 4-Flat Plug On A Trailer With Two Running Light Wires
Question:
I have a 5 wire snowmobile trailer triton trailers and I am switching to a 4 wire plug. The wires on the trailer are coming up as yellow and red run together and then green and brown run up together and then a separate ground wire. The new 4 wire plug has a ground, brown, yellow, green. What to do I connect to what
asked by: Corey B
Expert Reply:
It looks like your trailer is wired with a wishbone style harness like the # A20WB. This harness uses two brown running light wires to allow you to wire the trailer running lights without running a jumper wire from one side of the trailer to the other. To connect your new 4-wire plug, you will splice the two brown wires on the trailer together, and connect them to the brown wire on the 4 flat plug. Then it will simply be yellow to yellow, green to green and white for ground.
Products Referenced in This Question
20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 11 - 20 Feet Long
- Plug and Lead
- 4 Flat
- Optronics
more information >
Product Page this Question was Asked From
Continue Researching
- Q&A: How to Establish Ground Connection When Re-Wiring Aluminum Trailer
- Article: Trailer Wiring Diagrams
- Q&A: Parts Needed For Flat Towing a 2024 Ford Maverick Behind a 2010 Winnebago Journey With Air Brakes
- Q&A: Where is the Dummy Plug to Install a Brake Controller Adapter on 2019 Chevrolet Silverado 1500
- Q&A: Caliper Bolts for AL-KO/Hayes Disc Brake Caliper BP18-050
- Q&A: Does The Progressive Dynamics PD4655V Have A Lithium Jumper
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Which Instructions Are Used Installing a Roadmaster Brake-Lite Relay in a Ford F-150 w/ Neutral Tow
- Q&A: Recommended Diode for Charging Line From Motorhome to Towed Vehicle (Toad)
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Maintenance Schedule
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Article: Trailer Tire Sizing