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Curt 4-Way Flat Wiring Connector Cover

Curt 4-Way Flat Wiring Connector Cover

Item # C58200
Our Price: $2.76
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  • Reviews (189)
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CURT Accessories and Parts - C58200

  • Trailer Wiring
  • Wire Protection
  • Connector Covers
  • 4 Flat
  • CURT


  • Helps prevent rust and corrosion
  • Four-way flat car end cap
  • Quantity: 1 cover

58200 Curt 4-Way Flat Wiring Connector Cover

Video of Curt 4-Way Flat Wiring Connector Cover

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

Video Transcript for Curt Trailer Plug Covers - 4 Flat Cover - C58200 Review

Today we're going to review part number C58200. This is the Curt 4-way Flat Wiring Connector Cover. Now this cover is made to cover your 4-way flat connector. It is made of a flexible rubber. It helps prevent rust and corrosion and prevents any damage to the terminals of your 4-way. This is designed to be used on the vehicle end 4-way and I'm going to show you one of those in a minute here, show you how this works.

This part number would be for a quantity of one. Here's an example. I pulled a 4-way vehicle end and the reason this is a vehicle end 4-way is because if you'll notice three of the terminals have the rubber covering them and the ground terminal is exposed. The reason this cap is designed to use on the vehicle end is because if you look on the inside of it, there's an area for the three terminals that have the rubber around it to clear and then on the very end there's a round circle that fits on that exposed ground. When you go to install this, you'll just go ahead and slide this over the 4-way. Go ahead and pull it all the way down and you could actually just leave it on like that and when you're using this, plug in your trailer and use it like that. When you're done trailering 00:01:11, just unplug it.

Take your cap, just swing it over, put it right over and it closes completely over the terminals. Then that way when you're not using it, that won't be dragging down and damaging the terminals or any elements getting to the terminals. Then just pop it off, just pop it off like that and if you want to remove it, you can just pull it off the 4-way like that. That should do it for the review on part number C58200, the Curt 4-way Flat Wiring Connector Cover. .

Customer Satisfaction Score:

Customer Reviews

Curt 4-Way Flat Wiring Connector Cover - C58200

Average Customer Rating:  4.8 out of 5 stars   (189 Customer Reviews)


I gave this five stars because it's probably perfectly fine for what it is intended. However, I accidentally bought the wrong thing. This cover is meant for the vehicle side, and it's probably fine for that, but I had meant to get a cover for the plug on the trailer side like this Nonetheless, this cover still works on the trailer side -- it's just a little loose.

As to etrailer, I've bought several things from them and they always get 5 stars plus.

This is actually universal for the vehicle and trailer side. If you want to try a different 4 pole dust cover maybe item # W787301
Dust Cover for Wesbar 4-Pole Flat Connectors
would fit a bit better.
-- Etrailer Expert Sierra K - 05/26/2022


Good protection


While the product itself was excellent, the instructions were on the ambiguous side. Forget the instructions, and just watch the video to Hook Up----Suby's are so easy!!


Fits perfectly. Will keep the connector from coroding.


Simple pin cover that fits good. Should keep my connector clean and dry when not in use.


Great kit, works nicely.


Keeps the trailer connector clean and not all corroded.


This was a quick and inexpensive way to install a permanent 3-way plug on my towed vehicle. Allows wiring to be hidden out of the way and the rubber connector cover keeps dirt out of the plug.

Has it been a year already? Still looks like new and the rubber cover has kept the metal connectors clean. Great purchase!
Michael - 07/27/2019


Shawn B. (& everyone I talked with at E Trailer) was wonderful.
Great phone support. Great products. We did a great job installing the wiring harness.
Made me wonder why we originally took it to a "professional" trailer sales & service place in Ogden UT. They hacked into our wiring & created problems.
I will continue to be a grateful customer.
Finding good people who know their stuff in todays world is a soul healing event.
Thank you E Trailer!

Wonderful still
Nancy - 08/19/2018


It all came in a timely matter. Still need to install.


The "etrailer" print on the cover is not white but instead black which blends in with the background. Since I already have the trailer hitch receiver that says etrailer, it would've been nice for it all to match.

The white etrailer logo displayed in the pictures is actually a small sticker we use as a sort of watermark for our product photos. The connector cover is produced by Curt MFG and has their logo molded into it.
-- Etrailer Expert Patrick B - 10/07/2014


the electric plug cover is fine it could be a little longer so when you rap it around the hitch to hold it there it is easier to plug over the plug to cover it.

it is still working very well. We are using it this weekend to pulll our camper and operate the lights.
Richard L - 05/27/2016


Works as it should


This was a great find. Car dealership wanted $$$ for their complete assembly when all I needed was the plug cover. Thank you etrailer for stocking this. Prompt shipping too!

The covers come off easily. Ive already replaced two of them.
Happy s - 03/12/2017


Easy to install, worked as advertised. Very happy with the quality.


I needed 2 4-Way Flat Wiring Connector Covers for my Yakima Kayak Trailer wiring harness system. Etrailer seems to have everything. They had Curt harness system covers. Fit perfectly. Very durable, and cheap


Bought a used Highlander w/ trailer hitch, and noticed the wiring harness connector was starting to corrode. Found this connector cover on-line. It shipped same day I ordered it & was received quickly. It fits like a glove on my 4 connector wiring harness. Great price too.


Cover works as it is suppose to, and keeps moisture out of the contacts. Price was right and delivery was quick! Thank you!


Connector covers (2) and cover w/LED tester work as advertised. A little dab of dielectric grease on the connectors PLUS these covers is all you'll need to keep corrosion and bugs out of your trailer connectors. Just plug-up and wire brushing and trying to get a good connection due to corrosion. Can't beat them.


Very happy with the product and seller on this purchase.
Good product and good price!

It installed with no problems and now works great for my "Franken-basket" hitch, which combines a Thule swing-away hitch mount with a low-profile metal basket.


These are great storm covers for trailer wiring plugs. I put a small amount of electrical grease on the plugs a couple of times a year then apply these covers to prevent corrosion. They work great !!!


Excellent fit. No problems with install or use.


Items arrived quickly. Everything hooked up very simply and as E-trailer suggests, make sure your trailer wiring is in order. Mine was not and because of their suggestion I saved myself a lot of headache and time. Everything now works - very happy!!!

Be sure to use dielectric grease on all your fittings.


Great product

Nathan - 12/13/2021


Cheap but effective in protecting the wiring harness connector. I put a little bit of dielectric grease inside the flat wiring cover to keep the moisture out and prevent rust.

Show More Reviews

See what our Experts say about this CURT Accessories and Parts

  • Dust Cover Recommendation for 4-Way Replacement
    Sounds like you are looking for the Curt 4-Way Flat Wiring Connector Cover # C58200 which is a universal style 4-way dust cover that will work well.
    view full answer...
  • How to Prevent Corrosion on a 4-Way Trailer Connector
    For a cover designed to fit over standard 4-way connectors we have the # C58200. Another very helpful idea will be to put dielectic grease on the pins of your 4-way. This will actually be your best way to fight the corrosion. For that you would want the part # 11755. Basically you will need to apply a liberal amount of it all over the pins of the connectors before you put the cover on the 4-way and you will not have to worry about corrosion.
    view full answer...
  • Dust Curt 4-Pole Flat Vehicle Wiring Harness 58044 Come with Dust Cover
    The Curt 4-Pole Flat Vehicle Wiring Harness # C58044 does not come with a dust cover but you can easily add one with the Curt part # C58200.
    view full answer...
  • Shortest 4-Pole Trailer Connector Wiring Harness Loop
    For a 4-pole trailer connector wiring harness loop that is 12" or 1' long, I recommend using the Hopkins 4-Pole Loop part # HM48145. This is the shortest 4-pole trailer connector wiring harness loop we offer. You can add a cover to the above harness using the Curt 4-Way Flat Wiring Connector Cover part # C58200.
    view full answer...
  • How to Replace 4-Way Cover on Tekonsha T-One Wiring
    The cover for the T-One Vehicle Wiring Harness # 118776 is molded to the connector so I doubt it would be covered under warranty just because you'd have to essentially cut it off for it to fail - but you're more than welcome to pursue a warranty claim if you'd like. Since that's such a small part of the wiring harness though I don't think going through the trouble of replacing the whole unit would be worth it and instead I recommend just picking up a replacement cover like what we find...
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  • Troubleshooting Boat Trailer Running Lights
    Sounds like you may have a weak ground. You will want to make sure that you have the ground wire from the connector secured tightly to a clean surface on the trailer frame. I would also check to see if all of your taillights are grounded securely to a clean surface. If that doesn't work, then it may be a corrosion issue with the plug. I would check both plugs to see if they are making a good connection, you can try to clean them but replacing them is usually the best option. Curt offers...
    view full answer...
  • Hitch & Wiring for 2017 Toyota Sienna Towing Boat Trailer
    All versions of the 2017 Toyota Sienna have a towing capacity of 3500-lbs so your new vehicle is up to towing your 3000-lb boat and trailer. Do note that all auto makers recommend not towing anything for the first few hundred miles on the car to allow for proper break-in without putting extra stress on the vehicle. Draw-Tite Class III hitch # 75237 is an excellent choice since it offers a 4500-lb capacity, providing a healthy safety margin. For a wiring harness part # 118498 is a fine...
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  • Recommended Trailer Hitch and Wiring for 1965 International Travelall
    Since there is no custom-fit hitch for your 1965 International Travelall, you will want to go with a universal hitch like the Draw-Tite Ultra Frame Service Body Trailer Hitch Receiver # 41990-07. The # C14082 is not confirmed to fit your vehicle. The Draw-Tite hitch has a 2" receiver and fits vehicle frames up to 44". This is a weld-on hitch so we recommend taking it to a certified welder for installation. For wiring you can use the # C58345 which also comes with a mounting bracket. If...
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  • What Do I Need to Use Hitch C11109 with my 2004 Chevy Cavalier
    The hitch, # C11109, includes all the mounting hardware you need to install the hitch to your 2004 Chevy Cavalier. In order to tow a trailer, you also need to purchase a drawbar, and the ball itself that sits on the drawbar. The drawbar for this hitch is part # 3592. This bar includes a hitch pin and clip. Your drawbar requires a ball with a shank diameter of 3/4 inch. I have added a page link that will show you all the balls that would fit your drawbar. You need to select the ball diameter...
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  • Recommended 12 Inch Vehicle Side 4-Way With Mount And Cover
    Instead of cutting off your plug and splicing, I recommend using the Hopkins 4-Pole Loop - 12" Long # HM48145 along with some dielectric grease like the Loctite Bulb, Lamp, and Electrical Connection Dielectric Grease - 0.33-Oz Tube # LT37534 to keep water and debris out of your connections. For a mounting bracket, I recommend the Mounting Bracket 4-Pole Flat # 18144 along with the No-Drill Mount Bracket, Short # 18140. For your dust cover, I recommend the Trailer Wiring 4 Pole Flat (Vehicle...
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  • Recommended 4-Way Connection Between Towed Vehicle and Motorhome
    The only real advantage of the 4 round over the 4 flat trailer connector is the clean look of the connection point and the protection from elements when not in use. For instance the Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End # PK11410 has a clean finished look on the front of a towed vehicle and will protect the connection from dirt and debris with the spring loaded cover. Many people like the connection between the motorhome using a harness...
    view full answer...

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Info for this part was:

Employee Michael H
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Employee Wilson B
Updated by:
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Employee Kristina F
Updated by:
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Employee Isabelle B
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