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  1. Trailer Wiring
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  5. 7 Round - Blade
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Curt 7-Way RV-Style Trailer Connector - Vehicle End

Curt 7-Way RV-Style Trailer Connector - Vehicle End

Item # C58155
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This 7-pole, RV-style trailer connector hardwires to your vehicle and accepts the 7-way plug on your trailer to power your trailer's signal lights. Lowest Prices for the best trailer wiring from CURT. Curt 7-Way RV-Style Trailer Connector - Vehicle End part number C58155 can be ordered online at or call 800-298-1624 for expert service.
  • All Info
  • Reviews (15)
  • Q & A (0)
  • Videos (3)
  • Photos
  • Why etrailer?

CURT Trailer Wiring - C58155

  • Trailer Connectors
  • Vehicle End Connector
  • 7 Round - Blade
  • Plug Only
  • CURT

This 7-pole, RV-style trailer connector hardwires to your vehicle and accepts the 7-way plug on your trailer to power your trailer's signal lights.


  • 7-Blade, RV-style, vehicle-end connector accepts the 7-way plug on your trailer
  • Durable molded plastic construction resists corrosion
  • Spring-loaded lid with rubber gasket keeps out dirt and moisture
  • Mounting hardware sold separately
  • 1-Year limited warranty

58155 Curt 7 Way Blade RV Style Trailer Connector - Vehicle End

Video of Curt 7-Way RV-Style Trailer Connector - Vehicle End

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

Video Transcript for Curt Wiring - Trailer Connectors - C58155 Review

Speaker 1: Today we're taking a look at the Curt 7-Way RV-Style Trailer Connector for the vehicle end. This 7 pole RV-Style trailer connector hardwires to your vehicle. It accepts the 7-Way plug on your trailer to power your trailers signal lights. It's constructed of a durable molded plastic construction so it's going to resist rust and corrosion. It has a spring loaded lid with an internal gasket that's designed to keep out dirt and moisture.Mounting bracket is not included. If you're in need of one you can check out some great options at

The mount holes on this unit up and down. They're separated on center by an 1 1/2 and then side to side they're separated on center by 2 1/2 inches. Now, when you're ready to install the unit you'll need to take this back piece off. The reason why I like this connector is because it's a twist off application. A lot of the older style plugs use a screw to hold that in place.

You just grab it, twist it, and it pops right off giving you really easy access to the connection terminals.Then you would place your wiring through this portion here, feed it out this end and then make sure that you connect all of your individual wires to the correct terminals. Each terminal is labeled for its function so that allows for easy connecting. Once you have it all connected, place this piece back on, twist it to secure it in place, and on the bottom side here there's a set screw that'll need to be tightened. That closes this portion around your wiring to create a really nice, tight seal. That's gonna do it for today's look at the Curt 7-Way RV-Style Trailer Connector for the vehicle end..

Customer Reviews

Curt 7-Way RV-Style Trailer Connector - Vehicle End - C58155

Average Customer Rating:  4.9 out of 5 stars   (15 Customer Reviews)

This 7-pole, RV-style trailer connector hardwires to your vehicle and accepts the 7-way plug on your trailer to power your trailer's signal lights.

- C58155

This is my third order which speaks for itself. Best Customer Support, order handling, shipping expediency, packaging , price and product quality. Lori B took my order over the phone. She was very courteous, knowledgeable and strongly represents the Companies Customer Service Policy. Looking forward to Order #4...Wentzville, Mo., (The Show Me State) and they sure showed me.

Perfect for my application. Mounted an Ammo box on the tongue of my stock trailer and brought all wires up through the bottom of box and connected them to the female plug inside the box. Made a 3 pigtail to connect from trailer to the truck. When finished towing I roll up the pigtail and put it in the Ammo box. This protects the pigtail from the elements and cows chewing on the pigtail.
Big B - 10/28/2021

- C58155

excellent quality, very fast delivery

- C58155

Well made. I like the easy, twist access to all of the wire connections.

- C58155

Excellent product. Swapping out leads from old OEM Ford 7 pin to this was as simple as comparing the Ford lead function to the Aluma trailer lead function and making the swap. Made the connection to the trailer w/o cutting any wires! Re-drilled my Ford bracket and attached the connector w/o issue...except my locating the holes...had a bit of elongation on the bracket holes to properly align.

- C58155

I just received this the other day, looks just like I ordered, no bait and switch like some sites. I plan to get it installed in a day or two.

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great product

- C58155

Just what I needed at the cheapest price on the internet. I chose the cheapest delivery rate and got it in just a couple days. Sometimes “you get what you pay for” doesn’t apply.

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very well made

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Always quick and accurate orders

- C58155

Very easy to install and use

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Ask the Experts about this CURT Trailer Wiring

  • Parts Needed to Install 7-Way in Bed of 2019 GMC Sierra for Fifth Wheel/Gooseneck
    Your 2019 GMC Sierra 2500HD will have the 7-way trailer wiring behind the bumper but it may not have a wiring harness ran to install a second 7-way in the bed of the truck for fifth wheel/gooseneck wiring. So what you'd need for that is the # 41157 which plugs inline with the 7-way at the rear of the truck and gives you a harness and connector you can install in the bed of your truck. I attached an install video for this for you to check out as well.
    view full answer...
  • Recommended 7-Way To Hopkins Molded Trailer Wire with Different Colors
    The Curt 7-Way RV-Style Trailer Connector - Vehicle End # C58155 will connect to the Hopkins 7-Way RV Style Connector with Molded Cable # H20046 to make an extension with the following pin to color combinations because Hopkins uses odd colors. White to Ground Rede to Left Turn and Brake Brown to Right Turn and Brake Green to Tail Lights/Running Lights Blue to Trailer Brakes Black to 12V power Yellow to Aux/Reverse I've attached a photo to give you the locations to the pin functions so...
    view full answer...
    Image 1 for Image 2 for
  • Would 7-Way Trailer Wiring Circuit Have Amperage Rating for Powering 13 amp Horn
    Standard trailer wiring circuits on 7-ways like the part # C58155 and # PK12706 are rated for up to 40 amps so if you wanted to use a 7-way like this to power a horn that is rated for 13 amps you certainly could.
    view full answer...
  • Recommended Trailer 7-Way Wire Size
    The Curt 7-Way RV-Style Trailer Connector - Vehicle End # C58155 doesn't have a specified maximum wire gauge. We choose to use 10 gauge wire # 10-1-1 when hardwiring in most cases. We do directly hardwire that 12v 10 gauge wire without any step down connector. Most manufacturers use 12 and 14 gauge wires for different functions on pre-wired assemblies.
    view full answer...
  • Solution for Older 7-Way Plug Not Fitting Curt 7-Way
    It's probably best to replace the 7-way socket with a new one since the tester 7-way you have tried does. So for that I'd go with a standard plug like the part # A7WCB. This will plug right into your Curt connector # C58155.
    view full answer...
  • Replacing a 6-Pin Vehicle Side Connector With a 7-Way Blade Connector
    I have included images below of the 6-Pin # PK11609 and the 7-Blade # C58155 connectors that you will be wiring. I do recommend using the positions rather than trying to go off the wiring colors as the colors can vary. You can use a Test Light # PTW2993 to verify the wires are in the correct places on your current 6-pin connector.
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for
  • Solution for Replacing 6-Way Square Connector for Trailer that Needs Battery Charged
    All of the wires of the 6-way square part # 37995 are 18 gauge so this would not be ideal for use with a trailer that needs a battery charge circuit. I'd recommend switching the trailer and tow vehicle to a 7-way that you could use with a heavier gauge wire. On the trailer side the easiest way to pull that off is with the part # 277-000141. Then on the tow vehicle side you'd want a 7-way like the # C58155 and you'd be set. If you need any 10 gauge wire we also have the part # 10-1-1 which...
    view full answer...
  • How To Keep The Towed Vehicles Battery Charged When Pulled By RV
    The best way to keep the battery on your towed vehicle (2020 Ford Escape) charged when flat towing is to use Roadmaster Battery Charge Line Kit for Motorhomes # RM-156-75 and Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25. The charge line # RM-156-75 connects to your RV's starting battery since this battery is connected to the alternator and will not drain down. Then you will connect the other end of the charge line to the pin in the 1 O'clock position on your RV's...
    view full answer...

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Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Amanda M
Written by:
Amanda M
Employee Robert C
Test Fit:
Robert C

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