Do the Blue, Yellow, and Black Wires Need To Be Run On the Curt Trailer Connector Adapter C57672
Updated 08/20/2019 | Published 08/18/2019
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
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 4 Flat to 4 Flat
- 4 Flat to 7 Blade
- Plug and Lead
- 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: Battery Side Bolt Extender - Brass - Short
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Towing Mirrors
- Q&A: Does Transmission Cooler Install for 2014 Dodge Grand Caravan Require GM Radiator Adapter
- Shop: Vehicle Tow Bar Wiring
- Q&A: Is Smaller 12 Volt Wire on Curt 4-Way to 7-Way Adapter an Issue
- Shop: Circuit Breaker - 40 Amp - Perpendicular Mount Bracket - Cycling Auto Reset - Plastic - Type I
- Search Results: 4 pin to 7 pin adapter
- Search Results: battery fuse
- Search Results: circuit breaker
- Search Results: breaker
- Video: Derale Snap-In Radiator Adapter Fitting for GM Review
- Shop: Transmission Cooler
- Shop: ATO/ATC Dual Fuse Tap - 10 Amp Main - 5 Amp Added
- Shop: Replacement In-Line Fuse Holder for Curt Wiring Harness - Qty 1
- Shop: In-Line Circuit Breaker - 20 Amp - Perpendicular Mount Bracket
- Video: CIPA Custom Towing Mirror Review
- Search Results: trailer hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Video: How to Choose a Trailer Brake Controller
- Shop: Trailer Hitch
- Video: Feature Breakdown: Universal Installation Kit for Trailer Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer wiring
- Article: Trailer Wiring Diagrams
- Search Results: trailer tires and wheels
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
on Custom Fit Vehicle Wiring
