Availability of Vehicle 4-Way to Trailer 7-Way Adapter
Updated 09/02/2025 | Published 06/18/2025
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Question:
I have a car with a 4 pin connector and and RV with a 7 pin connector. Do you have an adapter that I could use to connect my cars 4 pin to my RVs 7 pin? Thank you for any help.
asked by: Joann
Expert Reply:
Hey Joann! You can use the Hopkins Plug-In Trailer Connector Adapter - 4-Way Flat to 7-Blade # HM54RV. This will carry the light functions from your vehicles 4-way over to the trailer. Does your trailer have brakes? Keep in mind, this will not allow you to use trailer brakes. If you need to use the brakes then you want to upgrade to a complete 7-way using the # ETBC7 along with a brake controller like # RED52VR.
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Product Page this Question was Asked From
Hopkins Plug-In Trailer Connector Adapter - 4-Way Flat to 7-Blade
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 4 Flat to 7 Blade
- Plug and Lead
- Hopkins
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Robin H.
9/2/2025
Hey Joann, did the Hopkins adapter work for your setup, or did you decide to upgrade to a complete 7-way with a brake controller? I'm curious to know how it turned out, as it could help others with similar needs.