Do the Blue, Yellow, and Black Wires Need To Be Run On the Curt Trailer Connector Adapter C57672
Question:
Hi, Im looking at the CURT 57672 Dual-Output 4 Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter on Amazon and I am wondering if I can install it on my 86 F150 with the 4 way plug. I dont have the three extra wires for splicing but am wondering if I would still have lights on the trailer without using the three extra wires.
asked by: Cole F
Expert Reply:
For starters, we do not offer products through Amazon as they are a competitor of ours. However, I can offer you the Curt Trailer Connector Adapter part # C57672 which will work on your 1968 Ford F-150 if you have an existing 4-way trailer connector. The additional black, yellow, and blue wires do not need to be attached in order for the trailer light to work but you will need to ground the white wire to your frame. The black wire is to charge a battery on the trailer and you will need to run this to the vehicle's battery if present but if not you can just tape it off. The yellow wire is for reverse lights and will need to be ran to the vehicle's reverse light circuit if the trailer has reverse lights and you want to use them otherwise you can just tape it off. The blue wire is for electric trailer brakes and will need to be run to an in-cab brake controller if the trailer has brakes and you want to use them otherwise you can just tape it off.
Product Page this Question was Asked From
Curt Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 4 Flat
- 7 Round - Blade
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Wiring
- Shop: Curt Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat
- Shop: Brake Controller
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: 4~way to 7~way
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Shop: Redarc Tow-Pro Elite Brake Controller for Tekonsha Harness - 2 Modes - 1 to 3 Axles - Proportional
- Q&A: Troubleshooting Prodigy P3 Showing No Trailer Connected to Trailer 5-Way Connector
- Shop: Trailer Wiring Junction Box
- Search Results: receiver hitch
- Search Results: trailer wiring
- Shop: Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Shop: Curt Trailer Connector Adapter with Backup Alarm - 4-Way to 7-Way RV and 4-Way Flat
- Article: Trailer Wiring Diagrams
- Shop: Vehicle Tow Bar Wiring
- Video: Trailer Brake Controller Installation - 2009 Toyota Tacoma
- Shop: Vehicle Tow Bar Brake System
- Shop: Trailer Hitch
- Shop: RV Mattress
- Q&A: How Does 7-Way Trailer Adapter with 4-Way Connector Install
- Search Results: tekonsha p3
- Search Results: h20046
- Search Results: 38656
- Video: Curt Trailer Connector Adapter Installation - 2020 Volvo XC60
- Search Results: 7 pin trailer wiring harness
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Video: Roadmaster Variable Voltage LED Tail Lights Wiring Kit Installation - 2022 Jeep Wrangler Unlimited
- Q&A: How to Connect Vehicle with 7-Way to Trailer with 5-Pole Flat Wiring for Surge Brake Lockout