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  1. Trailer Wiring
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  4. Trailer End Connector
  5. 7 Round - Blade
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Pollak RV 7-Blade Plug End Socket w/Mounting Bracket

Pollak RV 7-Blade Plug End Socket w/Mounting Bracket

Item # PK12-704
Our Price: $32.93
Trailer Wiring
Orders above $50 qualify for Free Shipping
Shipping Weight: 1.17 lbs
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Establish a secure connection between your trailer and semi or other tow vehicle with this heavy-duty, 7-pole RV blade-style socket and mounting bracket. Great Prices for the best trailer wiring from Pollak. Pollak RV 7-Blade Plug End Socket w/Mounting Bracket part number PK12-704 can be ordered online at or call 1-800-496-5010 for expert service.
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  • Reviews (16)
  • Q & A (0)
  • Videos (1)
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Pollak Trailer Wiring - PK12-704

  • Trailer Connectors
  • Trailer End Connector
  • 7 Round - Blade
  • Plug Only
  • Pollak

Establish a secure connection between your trailer and semi or other tow vehicle with this heavy-duty, 7-pole RV blade-style socket and mounting bracket.


  • Heavy-duty, 7-pole, RV blade-style socket connects tow vehicle to trailer
  • Zinc, die-cast housing for durability
  • Maximum amperage: 35
  • Includes mounting bracket and hardware

12-704 Pollak RV 7-Blade Plug End Socket with Bracket

Video of Pollak RV 7-Blade Plug End Socket w/Mounting Bracket

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Pollak Wiring - Trailer Connectors - PK12-704 Review

Today were reviewing part number PK12-704. This is from Pollak. It is the RV seven-blade plug and socket. Heres your mounting bracket right here, and what you do is you see your seven-blade in there. What you do is take off these screws, one here and one here and then remove the seven-blade. Then you want to run your wiring from your tow vehicle, run the cable with the wiring into the back here.

I think you can see the hole thats inside here. Then you run the wiring in there and pull it through. Then you connect your wire to the seven blade that youve pulled out.Once its connected you can push the seven blade back in there where it belongs. Then you do basically the same thing on the trailer end. Theres one screw right here.

You take that off, pull out the seven pin right here and you do the same thing with the wiring from the trailer into this end. Then you push the seven pin back in and thats how it works. There you have it for part number PK12-704 from Pollak, the RV seven-blade plug and socket. .

Customer Satisfaction Score:

Customer Reviews

Pollak RV 7-Blade Plug End Socket w/Mounting Bracket - PK12-704

Average Customer Rating:  4.6 out of 5 stars   (16 Customer Reviews)

Establish a secure connection between your trailer and semi or other tow vehicle with this heavy-duty, 7-pole RV blade-style socket and mounting bracket.


Quality product at a very reasonable pr ice


I have never found a tuffer, more weather resistant plug. I have to replace them regularly in all my equipment. Metal was the way to go.


Well built, and strong. Alot better than plastic ones that everybody wants to use. The metal will last longer and look better.


As always, y'all are great! Good prices, lots and lots of supply and great website.
Other than this delivery taking a few extra days than initially expected, great again!


I just received the Pollack RV-7 blade socket and mounting bracket. Everything was in the box and was delivered in a timely manner which is no small feat considering that I ordered during the holidays. I appreciate the fact that the folks at etrailer take an active interest in ensuring customer satisfaction. This is my fourth product that I have ordered from etrailer. There have been no issues with the products or the service.


The Bulldog gooseneck coupler is just as we thought very heavy built, shipment was fast and very well packaged, the pollak plug & socket are very nice and not plastic.


I have not installed the parts as of this date!!


As with numerous times before very easy to deal with, fast shipping, great products. This metal trailer wiring housing and pigtail is terrific. My plastic one broke wanted stronger metal one. Thanks


Made from metal that corrodes quickly. Put it in and 1 month later it was rusty inside at all the contact points. Need to be stainless and brass for this environment.


Trailer end was extremely difficult to get back in recepticle after connecting wiring.


Good equipment.


It’s solid. No plastic. Great product at extremely fair price.





Great product


See what our Experts say about this Pollak Trailer Wiring

  • Replacement 7-Way Blade Metal Trailer Electrical Connector Options
    Yes, we have the Pollak RV 7-Blade Plug End Socket w/Mounting Bracket # PK12-704. It will require you to cut off your current connectors to wire in the new ones. I recommend using Loctite Electrical Connection Dielectric Grease # LT37534 on those connections to keep them protected.
    view full answer...
  • Updating Power Plug on 1972 Truck Bed Camper
    It sounds like you may have a connector on your truck bed camper that's similar to a hookup for a dryer. If that's the case we definitely don't have any adapters for it and you'll likely have a hard time finding one so rewiring it to a modern-style connector would be more beneficial and for that I recommend checking out the Pollak RV 7-Blade Plug End Socket w/Mounting Bracket # PK12-704. This gives you a modern 7-Way socket and plug so both your truck and camper connections will match. Attached...
    view full answer...
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Info for this part was:

Employee Wilson B
Updated by:
Wilson B

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