bing tracking image
  1. Trailer Wiring
  2. Pollak
  3. Trailer Connectors
  4. Vehicle End Connector
  5. 7 Round - Round
  6. Plug Only
Solid 7-Pin 3-Hole Connector - Vehicle Side

Solid 7-Pin 3-Hole Connector - Vehicle Side

Item # PK11-729
Our Price: $19.08
Trailer Wiring
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.79 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images


Need help with installation?
Locate installers near me
Great Prices for the best trailer wiring from Pollak. Solid 7-Pin 3-Hole Connector - Vehicle Side part number PK11-729 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (4)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Pollak Trailer Wiring - PK11-729

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


  • 40 Continuous duty amps
  • 6-28 Volts
  • 7-Pin connector
  • 3-Hole mount
  • Mounting hardware sold separately

11-729P Pollak Solid Pin 3-Hole Mount

Video of Solid 7-Pin 3-Hole Connector - Vehicle Side

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

Video Transcript for Pollak Wiring - Trailer Connectors - PK11-729 Review

Speaker 1: Today we're taking a look at a solid seven pin connector for the vehicle side. It simply adds or replaces a solid seven pin connector to the vehicle. It provides the connection point for connecting your trailer's wiring to your vehicle's electrical system. It's made from a durable metal construction, has nice protective finishing on it to keep it safe from rust and corrosion. When it comes to the mount hole design, it has one here at the top, and then it has one here on the side and another one on this side. So it's a three hole mount installation.

Mounting hardware not included. The mount holes side to side right here are separated on center by about three inches. And then from the center of this hole going down to the center of either one of these holes is two and 5/8 inches. The cap right here, the lid is spring loaded so that's fully open, and it closes as soon as you let go of it, so it's a spring loaded design.Does a great job of keeping unwanted items away from the connection points, like dirt, moisture, and grime. Here on the back side is where you have the connection points or the terminals for your wiring on the vehicle.

And so basically, each one is labeled by, so like right here on this terminal, it says BLK so that would be black. This one right here is white. You know what you need to do is correlate those with the chart in the instructions that are included, and make sure that you get your wires connected to the appropriate locations on this connector. But these back here, your terminals and all the screws needed to make the connections are included with this connector.That's going to do it for today's look at the solid seven pin connector for the vehicle side.

Customer Satisfaction Score:

Customer Reviews

Solid 7-Pin 3-Hole Connector - Vehicle Side - PK11-729

Average Customer Rating:  4.8 out of 5 stars   (4 Customer Reviews)


Replacement for one with poor connectio ns.





See what our Experts say about this Pollak Trailer Wiring

  • Pollak Solid 7-Pin Vehicle End Connector for Tailgate Mounted Trailer Connection
    The Solid 7-Pin 3-Hole Connector - Vehicle Side # PK11-729 is a great option to mount in the side of your truck bed where there is more room or in the tailgate like you stated. It is a strong wiring harness casing that will hold up with your off-road driving. You don't need to add any additional grounding, wiring, etc. if you are replacing your previous trailer connector. If you have not already run the power wires, then I recommend using the # 5506 which comes with the circuit breakers...
    view full answer...
  • Availability of Pollak 7-Pole Round Pin Trailer Connector for Vehicle End
    For a vehicle end 7-Pole, Round Pin Trailer Connector, you can use the Pollak # PK11720. This connector has a 2-hole mount. For a 3-hole mount, you can use # PK11-729.
    view full answer...
  • Does 7-Pin 3-Hole Connector Have Rear Cover
    We do have a way to protect this connector, though there is not a rear cover for the Solid 7-Pin 3-Hole Connector - Vehicle Side # PK11-729. Instead, what I recommend doing for protection is simply applying some Liquid Electrical Tape # SWC50122. This will allow a good seal at the rear of the connector to protect it from damage and corrosion.
    view full answer...
  • Replacement 7-Way Round Pin Connector for a STEELBRO Side Loader
    We may have a 7-Way round pin connector for your Steelbro side loader unless it has the same functions as a semi-truck/trailer 7-Way. If that is the case we will not have a replacement. But for a 7-Way round pin vehicle side we have # PK11720 or # PK11-729. And for a trailer side we have # PK11700 or # PK11702. I have linked our help article on trailer wiring that shows how the various connector types are pinned out.
    view full answer...

Do you have a question about this Trailer Wiring?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer wiring information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee DeAnne T
Written by:
DeAnne T
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Cole B
Installed by:
Cole B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924