My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
Question:
My brother SVE only has a 4 plug adapter but my trailer is hard wire for a 7 way plug. What adapter do they make to change the 7 way plug over to a 4 wire plug?
asked by: James B
Expert Reply:
If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part # C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give you trailer light functions. If your trailer has a 7-pin connector, then it likely has electric trailer brakes and an onboard battery.
If you want a fully functioning 7-way trailer socket on his vehicle, then the installation will be a bit more involved, but we have a kit that contains pretty much everything you will need in part # ETBC7. This kit still uses the same adapter I mentioned above and it also comes with the additional wire and hardware you will need. I attached an installation video to show you how a kit like this is installed.
The only component of the towing setup that this kit doesn't include is a brake controller which will be required if you need to use the trailer's brakes. If you want something inexpensive that will get the job done, I recommend picking up the Tekonsha # TK63VR and wire harness # 20127.
Products Referenced in This Question
Replacement Brake Control Plug-In Harness for Tekonsha and Draw-Tite Brake Controller 12" Long
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Universal
- Draw-Tite
more information >
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Tekonsha BRAKE-EVN Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Automatic Leveling
- Under-Dash Box
- Up to 4 Axles
- LED Display
- Up to 90 Degrees
- Tekonsha
more information >
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 >
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Timothy
3/31/2024
Hey John, If I have a vehicle with a 7 pin connector and trailers with 4 pin connectors, is there a 7 pin and 4 pin combo unit with a mount that allows me to use either the 4 or 7 pin connection (basically converting my 7 pin to both 7 and 4 pin connections at the same spot)? Can't seem to find this anywhere. Thanks.