Recommended 7-Way Plug to 7-Pole Round Adapter

Updated 08/25/2025 | Published 07/07/2025

Products Featured in This Question

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3397)

$121.18

Pollak Trailer Connector Adapter - 7-Blade Plug to 7-Pole Round Pin - Nylon

(72)

$49.48

Question:

I plan to wire my vehicle with a 7way RV Socket. Im buying a trailer wired only with a 7way round plug. Is there an adapter? I plan to pick up trailer and dont want to replace the plug on the trailer in the parking lot. Is there an adapter?

asked by: Charles H

Expert Reply:

Yes, there is Charles. To adapt a standard 7-way connector to work with a 7-way round plug you'll need the Pollak Trailer Connector Adapter item # PK12727. This will plug directly into your vehicle's 7-way and you'll be ready to go.

What kind of trailer are you picking up?

expert reply by: Jerred H

Jerred H.

8/7/2025

Hey Charles, How did the Pollak Trailer Connector Adapter work for you when picking up your trailer? I'm curious to know if it made the process smoother, as it could help others in a similar situation.

Charles S.

8/21/2025

@JerredH It turned out that what the dealer told me was a 7 round plug actually fit right into an RV 7 plug on car so adapter was not needed. The trailer would not plug into the adapter, of course as was too big physically. I probably will never use the adapter because I use RV on all my trailers no matter how small bu you never know. I didn't want to install an RV plug out in the parking lot when picking up the trailer or I would have done it at home, if needed. Thanks