What are the Funtions of 7-Way Blade Style and 7-Way Round Pin Trailer Connectors
Question:
I am looking to build an adapter so that I can plug in a 7 pin blade Plug into a Truck but have a harness that uses a 7 pin Round Pin Plug. I just need to get the functions each pin serves on the 2 different types of 7 pin plugs I have them for the RV but do not have all of them for the round trailer plug. Can you help?
asked by: John A
Expert Reply:
When you disassemble each style of connector, you will find that each terminal is labeled by number. The 7-way round pin is wired as follows. Number 1 is the ground, 2 is the reverse lights, 3 is the left turn/brake lights, 4 is 12 volt auxiliary power, 5 is the right turn/brake light, 6 is the tail/marker light and 7 is the brake output.
The 7-way connector with the blade pins is wired differently. Terminal 1 is ground, 2 is brake output, 3 is taillights, 4 is 12 volt accessory power, 5 is left turn/brake light, 6 is right turn/brake light and the center pin is typically used for the reverse lights.
We offer an adapter that would allow you to plug a trailer with a 7-way round pin connector into a vehicle with the 7-way blade connector, part # 47595.
Products Referenced in This Question
Hopkins Trailer Connector Adapter - 7-Way RV Style Blade Plug to 7-Pole Round Pin
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 0 - 5 Feet Long
- 7 Round - Blade
- Plug and Lead
- 7 Round - Round
- Hopkins
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