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  1. Trailer Wiring
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  4. Vehicle End Connector
  5. 7 Round - Round
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CR Brophy Replacement 7-Pole, Trailer Connector Socket - Vehicle End

CR Brophy Replacement 7-Pole, Trailer Connector Socket - Vehicle End

Item # R7CB
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Our Price: $12.39
Trailer Wiring
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Shipping Weight: 0.29 lbs
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Brophy Trailer Wiring - R7CB

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

  • Used for commercial trucks and trailers.
  • Comes with brass contact points for better conductivity.
  • 7-Round pin.
  • ABS housing.
  • Black color.
  • Car end.

R7CB CR Brophy 7-Way, Trailer Connector Socket - Vehicle End

Video of CR Brophy Replacement 7-Pole, Trailer Connector Socket - Vehicle End

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

Video Transcript for Brophy Wiring - Trailer Connectors - R7CB Review

Speaker 1: Today, we're taking a look at the Brophy Replacement 7-pole Trailer Connector Socket for the Vehicle End. This is used, typically, for commercial trucks and trailers. It does come with brass contact points for better conductivity. And, as you can see, it's a seven round pin connector. The housing is a durable ABS plastic construction that's black in color. And it does feature the nice frame loaded lid, which keeps the contacts protected when nothings connected.

The connections on the back are easy to make with the included screws and color coded indicators. So, you don't actually see the color. But on each terminal or connection point, it says what color wire gets connected there.So, right here, it says 4 red, 5 green, 6 brown, 7 white . or 1 white, 2 black, 3 yellow, and then you got the 7 blue right here in the center. Loosen up the screws.

Place the wire in. Tighten the screw down. And really, that's all there is to it. It's a really nice design. Very easy to use.

Very easy to get everything connected, as it should be. And you have pre drill mount holes right here. These are elongated. These mount holes are separated on center by three inches. Mounting hardware not included.

That's gonna do it for today's look at the Brophy Replacement 7-pol Trailer Connector Socket for the Vehicle End.

Customer Reviews

CR Brophy Replacement 7-Pole, Trailer Connector Socket - Vehicle End - R7CB

Average Customer Rating:  5.0 out of 5 stars   (7 Customer Reviews)


Great people to work with and they always have what I need!


Excellent product


Exactly what I was looking for. I am going to use this to make an adaptor that will allow me to tow my round baler with my truck.


Perfect fit on our tractor.



It was exactly what I was looking for.



Ask the Experts about this Brophy Trailer Wiring

  • What is the Mounting Hole Spacing on CR Brophy Replacement 7-Pole # R7CB
    On the CR Brophy Replacement 7-Pole # R7CB the mounting holes are 3 inches apart on center.
    view full answer...
    Image 1 for
  • Do All 7-Way Sockets Have Tab to Hole 7-Way Plug in Place
    Yes 7-ways have a tab built into the bottom of the lid that holds the 7-way plug into the socket. This is true for the # R7CB that you mentioned as well.
    view full answer...
  • What Diameter Hole Is Needed to Install the Brophy 7 Pole Trailer Connector Socket
    It sounds like you're referring to the dimensions of the round receptacle for the 7 way connector on the CR Brophy Replacement 7-Pole, Trailer Connector Socket - Vehicle End # R7CB, which is roughly 2" in diameter. You'll need to cut a hole in the truck bed or bumper to mount this connector socket.
    view full answer...
    Image 1 for
  • What Is The Diameter Of The Socket Of The CR Brophy 7-Pole Connecter, # R7CB
    The diameter of the CR Brophy Replacement 7-Pole, Trailer Connector Socket - Vehicle End, part # R7CB, is 2". I have included a video review below.
    view full answer...
  • How to Waterproof Your Connectors
    While we do not have a housing kit to weatherproof the CR Brophy Replacement 7-Pole, Trailer Connector Socket, R7CB, we do have something to keep all of that moisture out of your connectors. It's our Dielectric Grease for Electrical Connectors, part # 11755. This grease doesn't wash away while it combats corrosion. As a dielectric grease, it's not a conductor, which keeps your connections safe from interfering with each other. I've linked to a video review of this grease for you to look at.
    view full answer...
  • Connecting 4-Flat US Trailer Connector to Australian 5-Round Trailer Connector
    The Tail Light Converter # 118158 will allow you to split the taillights from the 2 wires coming from your vehicle to the 3 wire system that the trailer uses. To make the trailer connection you will need the Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector # HM48190 to replace your existing trailer connector. You will be able to wire in the tail light convertor into the connection along with the wiring from the trailer to make all the circuits work. Green- Right...
    view full answer...
  • How Can I Connect My Lancer Camper To My 1991 GMC C/K Series Pickup
    The Lance camper has a proprietary connector. If you want to connect to your 1991 GMC C/K Series Pickup and not have to get a connector from Lance, you will have to replace that camper connector. That can be done with the Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End, part # PK12706. You will need to have a 7-way connector installed on your pickup. You will need the 4-way installed first. I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat...
    view full answer...
  • Comparing the Wesbar LED and Incandescent Agriculture Trailer Light Kits
    The price difference between The Wesbar LED Light kit # 54003-041 and the Wesbar Incandescent Light Kit # W002676 is due to the cost of producing LED lights versus incandescent light bulbs. LED light are quite a bit more expensive to make than incandescent lights. That being said, LED lights will last longer and use less power than their incandescent counter parts, so I do suggest going with the LED option. It should be noted that both the LED # 54003-041 and Incandescent # W002676 will...
    view full answer...
  • How to Troubleshoot a Trailer Connector Without Power
    If the trailer connector at the rear of your 1998 Ford F-150 is not receiving power, you will first want to check inside the connector for any dirt or debris. You can use electrical cleaner to clean the connector off, if needed. You will also want to give each of the wires leading into the connector a good wiggle to ensure they are properly attached. If the wires have come loose or the pins inside the connector are corroded, you can replace it using part # HM48190 for 4-way connectors or...
    view full answer...

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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Written by:
Wilson B

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