Adapting a 4-Way Flat Connector on a Vehicle to Tow a Trailer with a 7-Way Connector
Question:
Hello, I have the opposite set up than what you are showing. My trailer has a 7 plug and my vehicle has a 4 plug flat. Can I use it this way as well?
asked by: Jessica
Expert Reply:
Pollak adapter # PK12716 would not work but we do have what you will need. You need a 4-Way to 7-Way adapter # 37185. If you just need the lighting functions to work on the trailer then all you would do is plug your 4-Way into this adapter and ground the white wire to the vehicle frame.
If you need to have functioning electric brakes, 12 volt power, and/or reverse lights active for the trailer then instead of # 37185 you will need # ETBC7 and a brake controller (to control electric brakes, if applicable). For a brake controller I recommend the P2 # 90885 because it's easy to set up and use and it's reliable.
I have included a couple of links that show and explain the ETBC7 installation for you.
Products Referenced in This Question
Adapter 4-Pole to 7-Pole and 4-Pole
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 4 Flat
- 7 Round - Blade
- Hopkins
more information >
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LED Display
- Up to 360 Degrees
- Tekonsha
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 >
Product Page this Question was Asked From
Pollak 7 Pole to 4 Way Connector Adapter
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 7 Round - Blade
- Plug Only
- 4 Flat
- Pollak
more information >
Featured Help Information
Instructions
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