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4-Pole Trailer Connector Cover

4-Pole Trailer Connector Cover

Item # 20112
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Tow Ready 4 Flat Cover - 20112
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Lowest Prices for the best trailer plug covers from Tow Ready. 4-Pole Trailer Connector Cover part number 20112 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (139)
  • Q & A (12)
  • Videos (1)
  • Photos
  • Why etrailer?

Tow Ready Trailer Plug Covers - 20112

  • 4 Flat Cover
  • Tow Ready


  • Helps prevent problems caused by corrosion
  • Universal design
  • Fits either vehicle or trailer 4-Flat connector
  • Black
  • Installs in seconds
  • Soft flexible rubber construction
  • Elastic non-corrosive cover
  • Durable long lasting rubber
  • 1-Year limited warranty


85218 4-Pole Trailer Connector Cover

Replaces Tow Ready 18147 and 20112



20112 Installation InstructionsInstallation Details 20112 Installation instructions



Video of 4-Pole Trailer Connector Cover

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




Video Transcript for Tow Ready Trailer Plug Covers - 4 Flat Cover - 20112 Review

Today we're going to review part number 20112. This is the Tow Ready 4-way Flat Connector Dust Cover. Now this dust cover will protect your 4-way vehicle end connector when it's not in use. This part right here will cover the terminals on your 4-way to protect from damage or the elements. It helps eliminate any corrosion problems with your electrical system. It's very easy to install.

I just want to give you an example. I pulled a sample. This is a vehicle end connector, 4-way vehicle end connector. As you can see it's a vehicle end because you can see three of the terminals will have the rubber coating on it and the ground terminal will be exposed. What you want to do is when you install this, on this very end you'll notice there's a hole and that is designed to go over the ground so you want to make sure when you put it on, just take this, drape it over the 4-way and then make sure this, if you see on the inside of the cap that very end where the hole is, it will go over the ground. Just flip it over, push it into place and you can see that it fully protects the terminals from any damage.

If it's dragging, you don't want terminals to get damaged. This will protect it from that and also from the elements getting to it. That should do it for the review on part number 20112, the Tow Ready 4-way Flat Connector Dust Cover. .


Customer Reviews

4-Pole Trailer Connector Cover - 20112

Average Customer Rating:  4.6 out of 5 stars   (139 Customer Reviews)


- 20112
by:

I have both a boat trailer and a utility trailer. I was tired of either using a wire brush or a Dremel tool to clean the oxidation from the contacts that accumulated due to them being exposed to the weather. I bought two of these covers and each one fit perfectly. I just received them today and installed them as I was walking back from the mailbox. Only time will tell whether they are durable but they otherwise seem to be exactly what I wanted. 95909


Comments
Adding a bit of dielectric grease to the connectors will help out quite a bit. Just keep a little glob in that cover and it will keep moisture from getting to the the metal contacts.
-- Patrick B - 08/20/2013

1925
Comments
The covers are holding up well and have reduced maintenance time on my trailer lights. A similar type of cover would be useful for the mostly female connector on my tow vehicle. I still have to use a round file to periodically clean those contacts.
Bob P - 02/17/2015

9547

- 20112
by:

It’s very good quality, I always get the best products at a good price each time I place a order . Products always in stock and I have it in hand in 2 days . Great service . Thanks Korren C for your help, VERY PLEASED as always ..I’ll be in touch very soon with another order . 733431



- 20112
by:

Easy to install. Very reasonable pricing. Important thing is it protects and keeps plug from undo corrosion with the help of dielectric cream. Thanks for caring a complete line of related products to keep us from running all over to find what we need. 705280



- 20112
by:

Works great. 697927



- 20112
by:

I could not find this dust cover anywhere ….. but etrailer had it!! Thanks 697531



- 20112
by:

Worked as advertised 694334



- 20112
by:

Robust material and quality with quick standard delivery 690667



- 20112
by:

Great protection. 682892



- 20112
by:

A nice accessory 674614



- 20112
by:

Everything good 665397



- 20112
by:

Great 642885



- 20112
by:

Fit wery good will said could be more f lexible 637688



- 20112
by:

Weatherproofs your 4-way plugs (it will cover both "male" and "female" ends) in case your wires are exposed to the elements. I have replaced three plugs on one trailer due to corrosion. Much cheaper than building a barn for your trailer! 634048



- 20112
by:

Great for keeping connector contacts from weathering and making poor contact. 619243



- 20112
by:

Easy to use website, Fast shipping. 615779



- 20112
by:

Nice fit 591329



- 20112
by:

Fits great. Was exactly what I was looking for. 572823



- 20112
by:

Did not use it as a plug cover was included with the kit assembly. 569143



- 20112
by:

I bought this wiring harness connector cover because in the picture it looked like the rubber material is thicker and could be more durable. It is thicker and less pliable upon receipt. Time will test if it’s more durabie vs the cheaper etrailer connector cover because I have the etrailer connector cover installed on my jet ski trailer also. This unit is connected to my van hitch wiring connector. This connector cover is over 3 times the price of the etrailer 4-way connector cover but I’m hoping it’s at least 3 times more durable than the etrailer cheaper but work just as well putting a cover and corrosion protection from the weather. But I’m giving this item a 5 star rating for what appeared to me as a thicker, less flimsy than the etrailer connector cover and hence, durable. 565925



- 20112
by:

Good idea to use this on the vehicles harness when it is not connected to the trailer harness, since there is power at the plug end when the lights are operating on the vehicle. 563181



- 20112
by:

nice 526561



- 20112
by:

-fits well-does the job-prompt delivery appropriate price 522210



- 20112
by:

Easy to navigate website. Easy to purchase and fast shipping. 478578



- 20112
by:

Just a small waterproofing part but it is exactly what I was looking for. Delivery was quick and I had the part in no time. I've ordered from etrailer a few times in the past year and have been very satisfied with everything I've ordered. 475149



- 20112
by:

Very nicely made and seems like it will last, but it Does not fit on both vehicle and trailer, will only fit the normal smaller connector that all other covers I have tried will fit. I gave it a one, because I purchased it to fit the larger of the two connectors. 469995


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Show More Reviews

Ask the Experts about this Tow Ready Trailer Plug Covers

  • Recommended Trailer Wiring Harness for 2001 Dodge Dakota
    For your 2001 Dodge Dakota, the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118329 is a confirmed fit. Another option is the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C55329 which is also a confirmed fit. Either of these options will plug into your Dodge Dakota's wiring harness, which is located at the rear, along the inside of the frame rail on both the driver's and passenger's sides. I recommend using mounting bracket...
    view full answer...
  • Will Trailer Connector Cover 20112 Fit 4-Way From Truck
    Yes, the 4-way cover part # 20112 that you referenced is going to fit the 4-way you have that you sent in a picture of.
    view full answer...
  • Will T-One 4 Pole Trailer Connector # 118341 Fit a 1999 Toyota 4Runner without Factory Tow Package
    The T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, # 118341, is designed to fit all models of the 1999 Toyota 4Runner. It does come with installation instructions which I have linked to for you to review. The connection points are located behind the interior trim panels behind each taillight. The 4-pole trailer connector will be stowed in the rear cargo area when not in use. You may be able to route the 4-Way through the bottom of the cargo area and out under the vehicle...
    view full answer...
  • Availability of 5-Way Tralier Connector Cover
    We currently carry one 5-way cover, part # 20115. It also has an integrated LED Circuit tester that you can use to make sure the wiring on your vehicle is working properly.
    view full answer...
  • 4 and 5 Pole Trailer End Connectors
    We have trailer end connectors in both 4 and 5 pole configurations. Also, we do carry covers that can be added to 4 pole connectors and boxes that can be mounted on the trailer to store connectors in. We also have circuit testers that can be put in line with the vehicle and trailer or just plugged into the vehicle. The 5 way circuit tester, 20115, is an in-line model and should work for both 4 and 5 pole connectors. I have posted links below for your convenience.
    view full answer...
  • Recommendation for Camping Trailer Receiver for Pulling Boat Trailer
    If your trailer's frame is between 18 inches and 51 inches on center, then I recommend the Curt RV hitch # C13702. This hitch is the strongest capacity we carry for tongue weights up to 500 lbs and a towing capacity of up to 5,000 lbs without weight distribution. It can bump up to 600 lbs tongue weight and 6,000 lbs max towing when using weight distribution. If your trailer frame is between 22 inches and 72 inches wide on center, then I recommend the Curt RV hitch # 13703. This...
    view full answer...
  • Towing Equipment for a 1982 Jeep CJ-7 Renegade
    If you are looking for a trailer hitch receiver and wiring for your 1982 Jeep CJ-7 Renegade then you have come to the right place. The Curt Class III Trailer Hitch Receiver # 13412 is a great option for a trailer hitch receiver that we have. It has a 4,000 lbs Max Gross Trailer Weight (GTW) and a 400 lbs Max Tongue Weight (TW). This hitch will require some drilling to install. When it comes to wiring for your Jeep you will have to do some splicing to get the appropriate connections....
    view full answer...
  • Troubleshooting Wiring on Boat Trailer With 1998 Ford F-150
    Before getting a new connector I recommend testing to see if the issue is the wiring. You'll need to use a circuit tester such as # 40376 to test the 4-way on your 1998 Ford F-150. Check the wiring going into your harness from your tail lights to see if those are correct, if not then the issue is with the vehicle wiring. If the signals going to your harness are okay, you'll need to test the signals coming out of the harness, and if they are correct then your issue is likely going to be...
    view full answer...
  • How to Protect Trailer Wiring on a 2011 Subaru Forester from Winter Weather
    If the dealer does not have the exact part, you may be able to take the grommet with you to a hardware store where you may find something that will work in its place. I could not find an aftermarket grommet. It may be that the vehicle is still fairly new and that part is not yet available. Another option is to provide some protection for the wiring. For the actual wires, you can use a wire loom, # 39035. I would would go ahead and wrap the wiring in electrical tape for added protection. ...
    view full answer...
  • 4-Way Connector to Power Motorcycle Trailer Lights
    To power up the lights on your motorcycle trailer, you would want to use 20 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire # A20WB. This harness has all the wiring necessary to empower each of the lighting functions on your motorcycle trailer. I also recommend using wire loom # 459075-1 and ring terminals # 44-5310A to make the installation an easier process, as well as 4-way connector cover # 20112 to protect it from being damaged. I've added links to video reviews...
    view full answer...
  • Can 4-Way Trailer Connector Covers Be Installed after the Wiring is Installed
    The 4-Pole Connector Cover, part # 20112, can be slipped over an existing 4-Pole connector. It does not have to be installed when the wiring is first installed.
    view full answer...
  • Recommended 4 Pole Flat to 7 Way Adapter
    I have a solution for your trailer, however it's not a direct replacement or a temporary adapter; it's more a permanent solution. I recommend part # 277-000141, and part # A10-4404VP. The junction box has all of your connections protected inside, so you can have both a 7 way and 4 way connector on the front of your trailer. Cut the 7 way connector off the trailer, and connect each wire into the junction box. The box will have a 7 way connector coming out. Then wire the 4 pole wiring...
    view full answer...

Do you have a question about this Trailer Plug Cover?




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Info for this part was:

Expert Research:
Patrick B
Expert Research:
Jameson C
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Isabelle B

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