bing tracking image
  1. Accessories and Parts
  2. CURT
  3. Trailer Wiring
  4. Mounting Hardware
  5. Brackets
  6. 4 Flat
Curt Mounting Bracket for 4-Pole Flat Trailer Connector
CURT

Curt Mounting Bracket for 4-Pole Flat Trailer Connector

Part Number: C42CR
In Stock
$9.96
Retail:$11.05
You Save: 10%
Accessories and Parts
Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Attach your trailer connector mounting bracket to your vehicle. Simply bolt this sturdy steel bracket to your trailer hitch, bumper, or vehicle's frame. Use with a no-drill mount (18136 or 18140) for an even easier installation. 1-800-940-8924 to order CURT accessories and parts part number C42CR or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt Mounting Bracket for 4-Pole Flat Trailer Connector. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (700)
  • Q & A (0)
  • Photos

CURT Accessories and Parts - C42CR

  • Trailer Wiring
  • Mounting Hardware
  • Brackets
  • CURT
  • 4 Flat

Attach your trailer connector mounting bracket to your vehicle. Simply bolt this sturdy steel bracket to your trailer hitch, bumper, or vehicle's frame. Use with a no-drill mount (18136 or 18140) for an even easier installation.


Features:

  • Attaches to trailer hitch to provide mounting point for 4-Way flat trailer connector
    • Provides space necessary to mount large trailer connector
  • Installs directly to your hitch, bumper, or vehicle's frame
    • Works with no-drill mounting brackets (18136 or 18140) for even easier, reversible installation
      • Installation hardware is not included
  • Durable steel construction
  • Black powder coat finish resists corrosion
  • 1-Year limited warranty


  • Specs:

    • Overall dimensions: 2-1/4" wide x 1-3/4" tall x 1-1/4" deep
    • Diameter of mounting hole: 1-5/16"


    Dimensional Diagam



    58300 Curt Wiring Connector Attachment Bracket for 4-Way Flat Socket - Steel - Black Powder Coat Finish




    California residents: click here


    Customer Satisfaction Score:

    Ratings & Reviews

    4.7

    700 reviews
    Attach your trailer connector mounting bracket to your vehicle. Simply bolt this sturdy steel bracket to your trailer hitch, bumper, or vehicle's frame. Use with a no-drill mount (18136 or 18140) for an even easier installation.

    by:

    Love it. Makes the job look professional, no wire hanging down or attached to the hitch.

    Brooke M. profile picture
    Etrailer Expert

    Brooke M.

    4/29/2025

    No clutter is the way to go for sure! It looks great!



    by:

    Works as intended & provides a nice clean look for the 4pin connector.

    Brooke M. profile picture
    Etrailer Expert

    Brooke M.

    2/22/2025

    Definitely! It makes a huge difference not having a dangling 4pin.



    by:

    Fits well easy to install.

    Gwendolyn Y. profile picture
    Etrailer Expert

    Gwendolyn Y.

    3/25/2025

    I think you got every angle of the install, Andy! I Love it :)



    by:

    4 pole connector snaps In nicely. A must have or the connector will just dangle under the vehicle.

    Brooke M. profile picture
    Etrailer Expert

    Brooke M.

    5/1/2025

    Yes! These are perfect for what they are meant for. Keeps the wiring safer then you don't have to worry about it getting damaged from dragging :)



    by:

    Great products. Good installation instructions. Wiring was plug and play.

    I wish you had a bracket to hold the C42CR on top of the receiver like the one I built from 1/2” flat stock. See below.



    by:

    Great, as far as it goes. This needed to be installed attached to my vehicle’s plastic bumper cover so I made a backing plate from some scrap aluminum, which makes the attachment feel much more secure when exerting pressure to plug/unplug the trailer lights. If I’d seen this for sale WITH such backing I would’ve bought it instead.



    by:

    This is probably my 5th trailer hitch and wiring I have order from you all and everything has always went on without a hitch. LOL But seriously great product and what really puts it above everything is the installation videos. If you follow them everything goes smoothly. Thank You



    by:

    Cannot properly rate this as there are no instructions as to where it goes or how to install it.

    Gwendolyn Y. profile picture
    Etrailer Expert

    Gwendolyn Y.

    5/16/2025

    Hey Claude. There really is no right or wrong way to install this bracket. We have had customers attach it directly to their bumpers or the hitch. You can also use a bracket like part # 18136. It comes with a hose clamp to attach to the hitch and then gives you a platform to attach part # C42CR that you already have. I included an install video using the bracket that comes with the hose clamp. Unfortunately I don't have a video showing the install method of attaching to the bumper. Let me know if you have any more questions, I'm happy to help however I can!

    Claude profile picture

    Claude

    5/16/2025

    @GwendolynY Thank you for the information. Will figure it out. Appreciate the help.
    GwendolynY profile picture
    Etrailer Expert

    Gwendolyn Y.

    5/16/2025

    @Claude Anytime, Claude!


    by:

    Product was easy to install and 4 prong connector installed tight and held the way it should. I’m very happy with this product and all of trailer products. Thanks



    by:

    Great product. Bolted to under carriage with no problems.

    Brooke M. profile picture
    Etrailer Expert

    Brooke M.

    5/7/2025

    Boom! One and done :)



    by:

    Perfect compliment to the hitch install to have a bracket ton permanently mount the connection end and not just hanging down.



    by:

    Contrary to the picture, mine included 3 mounting holes (for two difference spacings), which was a needed feature for me. If it included the mounting screws (it does not) then I would have given 5 stars.



    by:

    I'm going to tap two screw holes in beam and attach curt mounting bracket. It would be nice if the holes were included with the trailer hitch.

    Robert profile picture

    Robert

    9/25/2024

    I nolonger have that vehicle, but when I traded it in, the curt mounting bracket still looked like a factory job



    by:

    Fits perfect for the connector I also bought. Also they installed it for free.



    by:

    Bracket is heavy duty and well made. May be mounted anyplace convenient.



    by:

    I purchased thinking it might be handy but after looking at the available mounting location, I didn’t think it would be convenient so I didn’t use it.



    by:

    Makes a solid mounting for 4 pin trailer plug



    by:

    I had to open the mounting holes slightly to match the holes in the hitch. Other than that it fit great.

    Pawsteve profile picture

    Pawsteve

    11/18/2024

    The connector mounts from the backside of the bracket, which means pushing the trailer connector into place will sometimes push the connector out of the bracket. I just hold the backside of the connector as I connect the trailer and its all good. Not a big deal, but some type of better mounting for the car side of the connector would be nice though.

    KevinC profile picture
    Etrailer Expert

    Kevin C.

    11/18/2024

    @Pawsteve You can pinch the connector into the bracket a bit more by carefully hammering in the little lips that grip it with a flathead screwdriver and hammer. The 4-pole connectors typically have a little ridge to catch on these but not every brand makes that ridge big enough to securely catch in the mounting bracket.


    by:

    Well made product just hard to reach as it is mounted to the receiver which is almost hidden from normal view. So you have to reach further under the vehicle than anticipated.



    by:

    Mount came in with my ETRAILER order mount LOOKS GREAT



    by:

    Exactly what I needed.

    David P. profile picture

    David P.

    6/6/2025

    Continues to perform as expected. Outstanding.



    by:

    The unit fit right in a looks great. Very easy install Hyundai Tucson Hybrid 2024.



    by:

    Easy and simple. Only gave 4 stars because item did not come with mounting bolts. Easy fix with bolts I had on hand. No drilling required because it was compatible with the Draw Tite Class III (76034) I also purchased from etrailer.

    Javi profile picture

    Javi

    3/10/2022

    No issues since the day I mounted it.



    by:

    This product worked great and mounted very nicely on my vehicle.

    Jack profile picture

    Jack

    4/2/2025

    This bracket worked perfectly on my 2023 Chevy Bolt EUV. I drilled two holes into the existing body panel mount to connect it to the car. It also interfaced perfectly with the flat wiring harness plug.

    BryceD profile picture

    Bryce D.

    4/2/2025

    @Jack Glad to hear you were able to get it to work!


    by:

    Easy install fit great took about 20 minutes to complete install

    Brooke M. profile picture
    Etrailer Expert

    Brooke M.

    5/7/2025

    Awesome! Nice when things go to plan :)


    25
    700
    Show More Reviews

    See what our Experts say about this CURT Accessories and Parts

    • Recommended Hitch for a 2023 Lexus RX 350
      The Draw-Tite item # DT73QR installs below the bumper. This hitch is perpetually backordered due to Draw-Tite being bought out so I have a way better option for a hitch for your 2023 Lexus RX 350. I recommend the Curt Trailer Hitch item # C29VV. This hitch is custom fit and bolts to your Lexus with included hardware. I really like this hitch because the crosstube mounts behind your rear bumper leaving only the 2" receiver visible. This not only looks better it also helps with ground clearance....
      view full answer...
      Image 1 for Image 2 for
    • Recommended Hitch and Wiring Harness for a 2002 Mitsubishi Montero
      Hey Rene, thanks for the information. To add a hitch to your 2002 Mitsubishi Montero, you'll want the Curt item # C13800. This is a class III, custom fit hitch with a 2" receiver, that includes all necessary hardware to bolt onto your Montero. It will not fit the Sport models and I do not have an option for a hitch that does. For a wiring harness, I recommend the Curt T-Connector item # C55380. This custom-fit T-connector plugs into your Mitsubishi's wiring harness, which is located behind...
      view full answer...
    • Does the Curt Hitch C13409 Block the Liftgate Sensor on a 2025 Subaru Forester?
      Hey Will thanks for the question! The Curt Hitch item # C13409 is compatible with the automatic tailgate switch on your 2025 Subaru Forester. You'll lose some of the sensors range around the 2" receiver but you're not going to want to be kicking in that area anyways once you get it installed. What do you plan on using your hitch for? If you are planning on towing you will also need a wiring harness item # C56040 and a ball mount kit item # C45534. I recommend using the No-Drill Mount...
      view full answer...
    • 2019 Hyundai Ioniq Plug-In Hybrid Wiring Kit Recommendation for Thule Bike Rack Tail Lights
      We do! I recommend picking up the Tekonsha T-One # 118758 for your 2019 Hyundai Ioniq Plug-In Hybrid and securing it by your hitch receiver with the mounting brackets # C42CR and # 18140 so the 4-Way is easily accessible. If you have the Thule Epos bike rack then you're needing the License Plate and Tail Light Kit # TH79XE, otherwise I recommend going with the Curt Auxiliary LED Indicator Lights # C53201 since they come with an adhesive that makes them quite easy to install. If you don't...
      view full answer...
    • Does the Curt Hitch 13493 Fit a 2024 Ford Bronco?
      Yes, it does. The Curt Hitch 13493 or our part number item # C76WR is confirmed to fit the 2024 Ford Bronco. This hitch is custom fit and bolts to your Bronco with included hardware. This is a class III hitch with a 2" receiver. It has a 3,500 lbs towing capacity and 350 lbs maximum tongue weight. I really like this hitch because of how easy it is to install it. You only have to install four bolts to your rear bumper to get this hitch set up. I have linked an installation video below along...
      view full answer...
    • Can I Install Both a Flat Towing Wiring Harness and a 4-Way Connector on a 2018 Jeep Wrangler JK?
      Yes, so long as you don't try to use both of them at the same time. The Curt T-Connector Vehicle Wiring Harness item # C55124 will work as a 4-flat connector and plugs into your Jeep's existing wiring. If you try to flat tow your 2018 Jeep Wrangler JK with say a bike rack on the back or a cargo carrier that has lights on it then the 4-flat connector will not work, only the Hopkins item # HM56200. The Curt item # C55124 is confirmed to fit the 2018 Jeep Wrangler JK's without the towing...
      view full answer...
    • Does the Curt Trailer Hitch item # C13382 Fit a 2024 Subaru Crosstrek?
      Yes, it is accurate. The Curt Trailer Hitch item # C13382 is confirmed to fit all models of the 2024 Subaru Crosstrek except for the hybrids. There was a customer that recently installed this on a 2024 with no issues back in May and he sent me in a picture which I have attached below. No modification or customization needed. It went right on his Subaru. If you are planning on towing you will also need a wiring harness item # C56040 and a ball mount kit item # C45534. I recommend using...
      view full answer...
      Image 1 for
    • Recommended Hitch and Wiring Harness for a 2022 Toyota Highlander
      Hey Joseph! The Curt item # C45CR requires you to disconnect an exhaust hanger temporarily, but it gets reinstalled a couple steps later. It's just to get the hitch to the mounting bolts behind the muffler. This hitch is custom fit for the 2022 Toyota Highlander and fits all models including your Platinum. For a 4-way wiring harness, you'll want the T-One Vehicle Wiring Harness item # TK99FR. This custom fit harness plugs directly into the existing wiring of your Highlander without requiring...
      view full answer...
    • On Your etrailer Hitch for My 2025 Subaru Outback Why do I Need the Carriage Bolt Through the Frame?
      Hello Stanley, Congrats on the new 2025 Subaru Outback! What is your favorite new feature? I watched the video and see the bolts you are referring to. I get what you are saying, seems a little excessive to have the bolts thru the bumper, and underneath as well. That carriage bolt you saw in the video helps anchor the side arm of the hitch to the frame for extra stability. While most of the hitch is secured to the bumper beam, this bolt keeps things from flexing or shifting side-to-side,...
      view full answer...
    • Recommended Hitch, Wiring Harness, and Mounting Brackets for a 2017 Toyota RAV4 Hybrid
      Hey Shannon! I'll start by confirming that the EcoHitch Hidden Trailer Hitch item # 306-X7219 will fit the 2017 Toyota Rav4 Hybrid. Out of those two wiring harnesses, I recommend going with the Curt item # C56350 over the Tekonsha item # 118578 because of reliability. This custom-fit T-connector plugs into your Toyota's wiring harness, which is located in your rear cargo area. It will provide you with a 4-way connector. The Curt item # C42CR and item # C57202 are not going to be the...
      view full answer...
    • Installation of Replacement OEM Tow Package Wiring Harness 118258 On a 2008 Hyundai Santa Fe
      I have attached an installation video of the # 118258 wiring harness on a 2009 Hyundai Santa Fe for you. The installation is pretty straight forward once you have gained access to the factory connectors. To do this, you are going to start by lowering the spare tire, and then you would open up the cargo area and remove the access panels, threshold trim, trunk floor panels and trays. Proceed by removing the trim panel on the driver side, but make sure you remove the fastener on the driver...
      view full answer...
    • Best Way To Remove 4-Flat Plug From Curt 4-Way Flat Mounting Bracket C42CR
      Hello Dennis, thanks for reaching out. The best way to remove the 4-flat plug from the # C42CR bracket is basically the same way it went it. I would start by working the plug from side-to-side a bit to get it loose. Then press the plug out thru the back of the bracket. Try pressing with your thumb while working the plug side-to-side and it should come out with a little persuasion. If it is stuck in there real good you could maybe try some lubricant spray or WD40 to help move things along.
      view full answer...
    • Recommended Hitch for a 2024 Hyundai Santa Cruz
      Yes, we do. To add a hitch to your 2024 Hyundai Santa Cruz, I recommend the Curt Trailer Hitch item # C23WR. This is a class III hitch with a 2" receiver. It has a 5,000 lbs towing capacity and a 750 lbs maximum tongue weight. I really like this hitch because the crosstube mounts completely behind the rear bumper leaving only the 2" receiver exposed. This not only looks better but it helps with ground clearance. Since you are planning on towing you will also need a wiring harness item...
      view full answer...
    • Recommended Wiring Harness for a 2025 Kia K5
      Hey Vincent. As of 5/8/2025 there are no plug in wiring harnesses for a 2025 Kia K5. The only option I have today is the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit item # 119250KIT. This kit uses sensors that clamp onto your K5's taillights without splicing into them. The sensors detect the current and activate your trailer's lights through the 4-way connector. Here are some other parts you'll need to tow a trailer with your 2025...
      view full answer...
    • Is there a Mounting Bracket that Will Attach a Wiring Harness to a Hitch w/out Drilling?
      Yes, we do! The best one is going to be the No-Drill Mount for Electrical Mounting Bracket item # 18140. This bracket will wrap around any hitch, square, round, OEM, or aftermarket and provide you with a mounting point that does not require drilling. You can use the Mighty Cord Universal 7-Way Mounting Bracket item # A10-9394VP for a 7-way connector or item # C42CR for a 4-way if your connector needs an additional bracket.
      view full answer...
    • Recommended 4-Way Connector for a 2024 Ford Edge
      Hey Dean! We've got a couple of options to add a 4-way connector to a 2024 Ford Edge and which one you need will be determined by what model you have. Both harnesses are custom fit and plug in behind the tail lights without cutting or splicing. I have listed them below: Titanium and ST - Curt T-Connector Vehicle Wiring Harness item # C73FR SE and SEL - Curt T-Connector Vehicle Wiring Harness item # C89FR I recommend using the No-Drill Mount Bracket item # 18136 and the item # C42CR to...
      view full answer...
    • What is the Best Hitch for a 2023 Volkswagen Tiguan?
      The best hitch for a 2023 Volkswagen Tiguan is the etrailer item # e43ZR. This hitch is custom fit and bolts to your VW with included hardware. This hitch fits all models of the 2023 Tiguan. The etrailer item # e43ZR is a class III hitch with a 2" receiver. It has a 3,500 lbs towing capacity and a 525 lbs maximum tongue weight. I really like this hitch because the crosstube mounts behind your rear bumper cover leaving only the 2" receiver visible. I have attached a couple of pictures...
      view full answer...
      Image 1 for Image 2 for
    • Recommended Hitch for a 2023 Subaru Outback
      For your 2023 Subaru Outback, I recommend the Curt Trailer Hitch item # C69VV. This hitch is custom fit and bolts to your Subaru with included hardware. This is a class III hitch with a 2" receiver. I really like this hitch because it is an easy install and anyone with a basic set of tools and knowledge can install it in a short amount of time. I have attached a couple of pictures below along with the instructions so you can see what this hitch looks like installed and how to do it. If...
      view full answer...
      Image 1 for Image 2 for
    • Recommended Hitch for a 2023 Jeep Compass
      Yes, there is a hitch available for your 2023 Jeep Compass. I recommend the etrailer Hitch item # e48AR. This hitch is custom fit and bolts to your Jeep with included hardware. I really like this hitch because the crosstube is hidden behind the rear bumper cover. This leaves only the 2" receiver visible which not only looks better it also helps with ground clearance. I have attached a picture below so you can see what this hitch looks like once installed. If you are planning on towing...
      view full answer...
      Image 1 for
    • Best Trailer Hitch for a 2023 Toyota Highlander
      The best trailer hitch for your 2023 Toyota Highlander is the Curt Hitch item # C99FR. This hitch is custom fit and bolts to your Toyota with included hardware. It is a class III hitch with a 2" receiver. It has a 5,000 lbs towing capacity and a 500 lbs maximum tongue weight. The reason this is the best hitch is that the entire crosstube mounts behind the rear bumper. This leaves only the 2" receiver visible, which not only looks better but helps with ground clearance. It fits both the...
      view full answer...
      Image 1 for Image 2 for
    • What is the Highest Capacity Hitch for a 2024 Jeep Wrangler Unlimited?
      The highest capacity hitch for a 2024 Jeep Wrangler Unlimited is the Draw-Tite item # DT78MR. This hitch is custom fit and bolts to your Jeep with included hardware. The Draw-Tite item # DT78MR is a class III hitch with a 2" receiver. It has a 4,500 lbs towing capacity and a 675 lbs maximum tongue weight. I really like this hitch because of the ease of installation. Getting it set up only requires installing four bolts to preexisting holes in your Jeep's bumper. I have attached a couple...
      view full answer...
      Image 1 for Image 2 for
    • Recommended Hitch for a 2023 Toyota Venza
      To add a trailer hitch to your 2023 Toyota Venza, I recommend the etrailer Hitch item # e25AR. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a 3,500 lbs towing capacity and a 525 lbs maximum tongue weight. I really like this hitch because the crosstube mounts behind your rear bumper cover. This leaves only the 2" receiver visible which not only looks better it helps with ground clearance. I have linked an...
      view full answer...
      Image 1 for Image 2 for
    • Recommended Hitch for a 2023 Ford Mustang Mach-E
      The best hitch for a 2023 Ford Mustang Mach-E is the Curt Trailer Hitch item # C77ER. This hitch is custom fit and bolts to your Mustang with included hardware. It is a class III hitch with a 2" receiver that is great for towing or hauling accessories like cargo carriers and bike racks. I have attached a couple of pictures below so you can see what this hitch looks like once installed. If you are planning on towing you will also need a wiring harness item # C59236 and a ball mount kit...
      view full answer...
      Image 1 for Image 2 for
    • Recommended Hitch for a 2023 Ford Bronco Sport
      To add a hitch to your 2023 Ford Bronco Sport, I recommend the etrailer Hitch item # e57KR. This hitch is custom fit and bolts to your Bronco with included hardware. This is a class III hitch with a 2" receiver. I really like this hitch because the main crosstube mounts behind your Bronco's bumper cover. This leaves only the 2" receiver visible which not only looks better but also helps with ground clearance. I have attached a couple of pictures below along with an installation video...
      view full answer...
      Image 1 for Image 2 for


    < Previous
    123. . .10



    Do you have a question about this Accessories and Part?


    Info for this part was:

    Employee Andrew K
    Installed by:
    Andrew K
    Employee Michael B
    Installed by:
    Michael B
    Employee Lindsey S
    Edited by:
    Lindsey S
    Employee Jameson C
    Expert Research:
    Jameson C
    Employee Joshua S
    Video Edited:
    Joshua S
    Employee Wilson B
    Updated by:
    Wilson B
    Employee Carrie F
    Updated by:
    Carrie F
    Employee Kristina F
    Written by:
    Kristina F
    Employee Rick G
    Video by:
    Rick G

    At etrailer.com 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.


    Product Experts Available Now!
    Call 1-800-940-8924
    <