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Tired of wasting time stripping and twisting wires for trailer connections? The Curt 4-Way Flat Trailer Connector comes with quick-splice wire taps that let you easily splice into your vehicle’s wiring without the hassle. Simply place the wires in and snap the cover down for a secure connection. This means more time on the road and less time fiddling with wires.
Need a trailer connector that fits all your towing needs? With compatibility for 5-pole, 6-pole, and 7-pole adapters (sold separately), this trailer connector is as universal as it gets. It ensures you have the right connection no matter what trailer equipment you’re using, giving you the flexibility for any adventure.
Worried about wear and tear? The durable, molded-rubber, standard female output socket ensures a robust connection every time. It’s designed to resist the elements and provide reliable performance, meaning your travels are uninterrupted by faulty wiring.
Want to avoid the frustrations of faulty trailer lights? With color-coded wires and essential grounding tips, this trailer connector simplifies wiring and reduces the risk of faulty connections. Be sure to secure a clean ground contact to avoid the common pitfalls that lead to electrical issues.
Struggling with short wires? The 60-inch long harness provides ample length to connect the trailer wiring to your vehicle’s rear lights with ease. It takes the stress out of installations, allowing you to direct the wires exactly where they need to go, without dealing with annoying shortages.
Concerned about corrosion? Applying a little dielectric grease on the 4-way plug protects the terminals from dirt, grime, and corrosion. This simple step increases the life span of your trailer connector, ensuring dependable performance for all your travels.
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LOVE THE PRODUCT AND IT FITS WELL WITH NO PLAY AND BOUNCING.
It’s a fine 4-pin connector.
Will all I can say is it's a well-built good-looking product. It was very easy to install.And easy to wire it up.follow the instructions that you get am 71 years old and I did it All in 45 minutes.
When I was ordering this product customer service went out of their way to help me in any way they could.
I would recommend this company to anyone they are very pleasant people to do business with.and the shipping was right on time
Wire harness works fine but had no instructions, not even a identifier for which color wire does what. No ring terminal included for the ground wire. I think an end cap should be included on the harness due to the fact that there is power at the plug end any time the vehicles lights are operating. I ordered connector cover 20112, fits well on this harness.
This is a standard flat connector for attaching to a trailer. I don't have it installed yet, but it looks like it will work perfectly. The cable is long enough to connect to both rear lights.
Ken L. 
10/24/2014
I finally got it installed. My 87 Jeep has had the wiring modified several times in its life so nothing was as it was supposed to be. I finally got all of the previous mistakes unwired, returned it to normal and then added the connection for the trailer. It was easy to install and worked perfectly. I like it and use it all the time.
Hitch delivered quickly. The packaging is excellent. The condition of the hitch is new. The fixing kit, bolts and nuts correspond to the hitch. The video on the site was of great help in installing the hitch. I would like to have a video on the site how to connect the wires, but it's not difficult for an electrician. Problems with the installation of hitches on the car did not arise.
Heather A.
8/23/2018
This Curt 4 pole part C58044 is a hardwire installation. I have attached a video of the hardwire installation for part # 18252 on a 2003 Pontiac Grand Prix. It is a different part number but the same installation. Although, I do recommend part # 56076 custom fit plug and play wiring harness for this vehicle. The plug and play option is a much easier installation.
Helpful Links
Custom-Fit-Vehicle-Wiring/Curt/56076.html
tv-install-trailer-wiring-2003-pontiac-grand-prix-18252.aspx
Ran this from the front of the 5th wheel and back so I could pull my other trailer. Another job well done...... Thanks
James
3/24/2021
Harness is still like brand new. The cover cap keeps the contacts nice and clean when not in use. Would buy again anytime.
This attached very easily to my tail light wires. When not towing, I just shut it up in my trunk, and when I need to pull, I open the trunk and pull them out. I was very skeptical when I got the kit and saw the instructions, but it worked!
Was nice to be able to print out the text of the installation video. Clear and concise.
Paul
8/21/2022
Great, no issues. As good as the day I put it on.
Perfect for the application and reasonable price. I believe etrailer.com has spent some time considering which wiring kit is best for each vehicle.
Had an embarrassing issue with one of the quick-splice connectors breaking - would recommend soldering all wires for longevity.
I'll start by saying this arrived with my hitch in just a couple of days. It installed easily, as I have experience with wiring. It's high quality, and well made. I did not use the provided clamps that came with the wiring kit. I've found that splicing and soldering the connections with heat shrink tubing for protection is the best method.
Easy install. Performs exactly as advertised. You will have to buy a special electrical kit to be able to hook up trailer lights.
Product worked okay, but the connectors didn't. They would not close and tap the main wires. I had to splice the wires in directly. Otherwise, It works.
Looked like I would need more "stuff" to hook up my wiring harness.
However with the help of on line installation instructions.
Mission accomplished.
I have bought several items from etrailer for several years and I have never been disappointed, mislead, or had to return any of them. I have always found them to have several selections, thorough descriptions, competitive prices, and reasonable shipping charges. I live in a small town about an hours drive from any place adequately equipped for trailer needs. Internet shopping has solved this problem for me. Thank you etrailer.
While it worked well, I threw out the supplied connectors and used more weather proof versions. But the wiring was long enough and I have had no issues with it.
Description of product should in bold letters describe that this is not for the trailer but instead for the vehicle. Product is of no use to me.
Dan A.
8/28/2013
Thanks for posting that. I was wondering the same thing. I need the other end, for the trailer to tow with my truck.
Great product and at a great price, "etrailer" has now become my number 1 stop shop for all my trailer needs now. Due to speed and unbeatable price.
I replaced the old wiring harness with this new one. Looks like a very good product.
Dealing with etrailer has been nothing but a joy to do business with. They have a great selection and very reasonably priced. Fast service and delivery. I wouln't hesitate to do business with them again. Looking at their products is like being a kid in a Candy Store.....lol. Their products are first rate quality.
Perfect length and wired in with ease, Just wish it had a weather proof cap included. but still very happy
I have ordered many times through etrailer.com and have never been disappointed. Great service and ever good products. I wish you were in my home town.
Could not have installed any easier. Instructions were complete and simple.
Very easy to install, hardest part is putting the trunk liner back in place. Watch the YouTube video to get the correct wire colors.
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
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Heather A.
9/10/2018
The 4 pole trailer connector part # C58044 is designed with a green wire, yellow wire, brown wire and white wire. The green wire wires into the right turn wire of the vehicles wiring harness. The yellow wires into the left turn signal of the vehicles wiring harness. The brown wire wires into the tail light signal. The white is the ground wire that needs to be grounded to a clean bare metal surface on the vehicle. A ring terminal that accepts 14 gauge wire such as part # DW05737-1 can be used to ground the white wire. If you would like an end cap on the 4 pole connector I recommend part # 20112 by tow ready to protect the end of the connector. I have also attached a wiring help article to assist with the installation.
Helpful Links
Accessories-and-Parts/Deka/DW05737-1.html
Accessories-and-Parts/Tow-Ready/20112.html