We'll connect you with nearby partnered installers who know this exact setup.

CURT

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

Part Number: C58145

42 Reviews | 6 Questions

In Stock

$12.49

Retail:$13.95

You Save: 10%

Add to cart

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

curt trailer wiring end connector 7 blade

curt trailer wiring connectors end connector

curt trailer wiring end connector c58145

curt trailer wiring connectors 7-way rv-style connector - end

Show All (7) Product Images

Show Fewer Product Images

In Use/Installed

0 trailer wiring curt connectors end connector 7-way rv-style -

Show All (1) In Use/Installed

Show Fewer In Use/Installed

Customer Photos

Curt 7-Way RV-Style Trailer Connector - Trailer End customer photo

Show All (4) Customer Images

Show Fewer Customer Images

Videos

Detailed Breakdown of the Curt 7-Way RV-Style Trailer Connector

How to Install the Curt 7-Way RV-Style Trailer Connector - Utility Trailer

Show All (2) Videos

Show Fewer Videos

We'll connect you with nearby partnered installers who know this exact setup.

SCHEDULE AN INSTALLATION

This 7-pole, RV-style trailer connector hardwires to your trailer and plugs into the 7-way on your tow vehicle to power your trailer's signal lights. Great Prices for the best trailer wiring from CURT. Curt 7-Way RV-Style Trailer Connector - Trailer End part number C58145 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

CURT Trailer Wiring - C58145

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

Features:

7-Way, RV-style, trailer-end connector plugs into the 7-way on your vehicle
Easy-to-grip ergonomic design allows for simple plug in and disconnect
Durable molded plastic construction
Corrosion-resistant terminals withstand the elements

Specs:

Wiring configuration:
- Blue: electric brake
- Green: tail lights
- Red: left turn signal and brakes
- Brown: right turn signal and brakes
- Yellow: auxiliary and reverse lights
- Black: battery
- White: ground wire
1-Year warranty

58145 Curt 7-Pole RV-Style Trailer Connector - Trailer End

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

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

Detailed Breakdown of the Curt 7-Way RV-Style Trailer Connector Video review curt 7 way rv style trailer connector trailer end c58145

How to Install the Curt 7-Way RV-Style Trailer Connector - Utility Trailer

Video Transcript for Detailed Breakdown of the Curt 7-Way RV-Style Trailer Connector

Speaker 1: Today we're taking a look at the Curt Seven Way RV Style Trailer Connector for the trailer end. This seven way RV style trailer end connector would hard wire to your trailer's wiring and then plug in to the seven way on your vehicle.Has a really nice easy grip design, allows for simple plug in and disconnect. It's made from a durable molded plastic construction. Your trailer wiring hard wires to each terminal located inside the connector. To gain access to those, you need to undo this screw right here. That allows the unit to pull apart, and then you can connect each wire to each corresponding terminal.Now the unit does feature corrosion resistant terminals to withstand the elements.

Once you have everything connected, you would reassemble the unit together and then located right here, you would tighten this screw, which creates a tight seal around the wiring and also functions as a strain relief bracket, reducing the amount of stress placed on each connection terminal.That's going to do it for today's look at Curt Seven Way RV Style Trailer Connector for the trailer end.

Customer Satisfaction Score:

100% were satisfied with this product

0% of customers were not satisfied

4.6

42 reviews

5 Stars		(34)
4 Stars		(3)
3 Stars		(4)
2 Stars		(0)
1 Star		(1)

by: Robert 08/08/2026

It seems to be a toy. I would never put that on my trailer.

by: Scott M 05/15/2020 One Year Later

I chose this connector because it had the capability to seal the wire leaving the connector. Some of the other designs I've seen did not offer this feature and being this was installed on a trailer used in Michigan...in the winter time...lots of salt spray, I wanted to protect the inside of the connector from corrosion. While the connector is well made and robust, I think the seal leaves a little to be desired. You can see from the pictures that I modified the wire exit using silicone sealant. I used black electrical tape around the body of the connector to seal the area where the screw is located. I haven't taken the connector apart since installing it (Summer 2019) but so far, the lights work consistently on the trailer. I did notice some light corrosion on the blades of the connector which is shown in one of the pictures. I think this is easily removed by inserting and removing the connector a few times when getting ready to use the trailer.

Click to Enlarge

by: Dan 05/23/2026

Exact plug I needed and super fast shipping !! Thank you for excellent customer service!

by: Sal 03/06/2026

I originally bought this as a backup for when the original cable plug corroded due to age. I plan on replacing the entire cable but this worked great as a backup to get us back on the road. Easy to following wiring connections, sturdy construction and found to be water tight when traveling in the rain. Very pleased with price and durability. I'm just glad someone created this rather than fighting with replacing the whole cable to get us going

by: Randall Collins 01/24/2026

So with my trailers it is always nice to have someone backing me up for parts. Thank you etrailer for your continued good service.

by: Jeff K 02/15/2020 One Year Later

Nice sturdy connector and worked perfect. Easy to grip and unplug. Heres a photo of the plug during assembly. Just unscrew it to take apart the plug, add your wires, then put back together. Simple.

Click to Enlarge

by: Brett 06/10/2020 One Year Later

This is the only 7 pin trailer connector out there I have found that doesn't have the connection end loosen or pull out from being plugged and unplugged from the tow vehicle. Most have the end plug portion only held in place by a small set screw in a flimsy and brittle plastic housing. This connector has two halves that clamp shut around the plug end and hold it 360 degrees. I have switched two of my trailers to this connector, and I expect much more life out of it.

by: Brett 03/09/2021 One Year Later

Most connectors for the trailer end hold the inner plastic piece and outer body together with just a small set screw, causing it to crack after little use plugging and unplugging tight connections.

This is the only plug I have found that holds up well with regular use. It uses two halves of the outer shell to clamp the inner piece. I will never buy a different plug as long as these are made. I have switched two of my trailers to these and they have both been on for 2 years or so. Previously I would be lucky to use another style of plug 1 year before a failure.

by: Ericka 05/29/2022

We have been struggling to find the right plug for our camper. We are new at this. Finally I stumbled across this website, put in the exact information on my camper title and all these parts pop up. I ordered the plug it said I needed and all the bells and whistles turned on. We are so happy! Now off to camp! Thank you

by: Harold 09/05/2021

Set screw is not good. It would also have help to have some instructions and an easy to see wiring diagram. I took apart a molded connector to figure it all out. Diagrams on the web are all different! Up and down and view directions are not well explained. Anyway it is installed and works.

by: Jeff 05/14/2021

etrailer is very committed to excellent customer service. I appreciate them. They continue to earn my business.

by: Paul 06/10/2025

Great value will buy again

by: Bruce 05/14/2023

I have used etrailer before and never had any problems thank you

by: Timothy 06/27/2021

Great quality!

Timothy T. One Year Later

6/28/2022

Good

by: Derek 09/30/2022

No diagram at all to explain proper placeent of wires.

Mike L.

10/9/2022

The article Ive linked for you shows how a 7-way trailer connector should be wired

Helpful Links

faq-wiring.aspx

by: Gregory 11/13/2021

Well designed. High quality replacement part.

by: Charles 02/13/2024

Took a little while to install but easy to do. The first time I wired it wrong but that is on me. Everything works like it should.

by: Moshe 01/03/2020 One Year Later

Excellent product, perfect transaction. Thankx

by: Owen 05/13/2020

Easy access to wire terminals, great fit-up and sealing ring. Used 6-wire cable and will replace OEM supplied RV to toad.

by: Subhash 06/22/2026 One Year Later

by: Lowell 11/19/2021

Works well

by: Subhash 04/08/2026 One Year Later

by: Luke 03/22/2026

by: Paul 06/04/2023

Great product! Fast efficient shipping!

by: Tom 03/26/2024

Perfect plug

true

Show More Reviews

See what our Experts say about this CURT Trailer Wiring

Do you have a question about this Trailer Wiring?

Wiring In a Curt 7-Way Trailer Plug In Place Of a Wesbar 4-Way Trailer Connector
To wire in the Curt 7-Way RV-Style Trailer Connector # C58145 you will need to match the wiring with their function and not rely on color. I have included an image that shows where the wiring goes on the connector below. Your Wesbar connector will have the white wire for a ground connector, the brown wires are the tail & running lights, the green will be your right turn and stop and the yellow will be the left turn and stop.
view full answer...
What Gauge Wire Should be Used for 12 Volt Accessory Circuit of 7-Way
You'll want to use 10 gauge wire like part # 10-1-1 (sold by the foot) for the power and ground circuit of a 7-way accessory circuit. I attached a diagram that shows how 7-ways normally are wired for you to check out as well. The center pin could definitely be used as a power circuit like you need but normally it's the 1:00 position circuit that's used for that and then the ground is in the 7:00 position.
view full answer...
Do Trailer Side 7-Way Plugs Have Metal Tabs in Middle
Trailer side 7-ways (attached to the trailer) have a single metal tab in the middle of them, and there isn't an option for one with double tabs. A vehicle-side 7-way (which is attached to the vehicle) does have two metal tabs in the middle, which accept the trailer-side 7-way's tab. For a replacement, you can use just a plug or you can use a 7-way with the wires attached, which is a plug and lead. - Plug Only: Curt 7-Way RV-Style Trailer Connector - Trailer End # C58145 - Plug and Lead:...
view full answer...
Intermittent Trailer Brakes
Hello Nathan, Thank you for your purchase from etrailer of the Draw-Tite Brake Controller # TK63VR. For intermittent brake controller operation like yours, the ground is certainly the first thing I'd look at. If you hardwired the controller, make sure the ground to the negative battery terminal is solid and not potentially loose. The other thing that may be happening is an issue with the 7-way connectors. Often, corrosion or dirt may be the cause of a short in a trailer connector. Check...
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...
Powered Side Mount Trailer Jack that Can Power From a 7-Way
For a powered trailer jack that attaches to the side of the trailer frame the Fulton XLT part # F141401 would work really well. Then to power it from a 7-way you'd just need to wire the jack to a 7-way plug like the Curt 7-Way part # C58145 which you could plug in as needed.
view full answer...

Do you have a question about this Trailer Wiring?

Info for this part was:

Edited by:

Lindsey S

Expert Research:

Jameson C

Video by:

Dustin K

Installed by:

Cole B

Installed by:

Scott A

Updated by:

Wilson B

Updated by:

Kristina F

Updated by:

Isabelle B

Written by:

Amanda M

Video Edited:

John S

At etrailer 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.