bing tracking image
  1. Custom Fit Vehicle Wiring
  2. GMC
  3. Sierra 2500
  4. 2020
  5. CURT
FITS 2020 GMC Sierra 2500
Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector and Cover Plate - 7' Long

Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector and Cover Plate - 7' Long

Item # C53CR
Retail:$127.95
Our Price: $72.95
You Save: 43%
Custom Fit Vehicle Wiring
Confirmed to Fit
2020 GMC Sierra 2500

with factory 7-Way

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Orders above $99 qualify for Free Shipping
Shipping Weight: 2 lbs
Add to cart
In Stock
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
Call etrailer.com at 1-800-940-8924 for expert service. We are your GMC custom fit vehicle wiring experts, and offer a great price. etrailer.com carries a complete line of CURT products for your GMC Sierra 2500 2020. Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector and Cover Plate - 7' Long part C53CR from CURT can be ordered online at etrailer.com. Complete custom fit vehicle wiring installation instructions and technical support.
  • All Info
  • Reviews (108)
  • Q & A (0)
  • Photos

2020 GMC Sierra 2500 - Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector and Cover Plate - 7' Long

  • Custom Fit
  • Fifth Wheel and Gooseneck Wiring
  • 7 Round - Blade
  • CURT
  • 7 Feet Long

Mount this 7-way, RV-style connector in your truck bed for quick hookup of your 5th-wheel or gooseneck trailer. Harness plugs in-line with your existing factory wiring so that you can retain use of your Chevrolet Silverado 3500's 7-pole. Includes cover plate.


Features:

  • Provides 7-way, blade-style connector in your truck bed for hassle-free hookup of 5th-wheel and gooseneck trailers
    • Connector mounts in truck-bed sidewall, tailgate post or wheel well
  • Retains factory 7-pole trailer connector at rear of truck (if present)
  • Plugs into factory wiring - no cutting or splicing
    • 7' Long, insulated wiring harness reaches from rear bumper to truck bed
    • Requires that truck have factory tow package
  • Custom fit for your GMC Sierra 2500
  • Includes cover plate
    • Adapts Curt 7-way sockets to fit factory GM truck bed connector opening
    • Covers gaps to provide a clean, factory look in the truck bed
  • Includes zip-ties and self-tapping screws for installation


Specs:

  • Harness length: 7'
  • Limited 1-year warranty


55417 Curt 7-Way Opening Cover Plate for Chevrolet and GMC Truck Bed

56070 Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 7' Long

Installation Details C53CR Installation instructions

Customer Satisfaction Score:


Customer Reviews

Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector and Cover Plate - 7' Long - C53CR

Average Customer Rating:  4.7 out of 5 stars   (108 Customer Reviews)

Mount this 7-way, RV-style connector in your truck bed for quick hookup of your 5th-wheel or gooseneck trailer. Harness plugs in-line with your existing factory wiring so that you can retain use of your vehicle's 7-pole. Includes cover plate.

by:

Ordered this for a 2024 Silverado 2500HD even though it wasnt certain that it would be compatible. Once i figured the connections out the actual install took maybe 15 minutes! Ill add i coated all the connection pins with dielectric grease before reconnection. Worked perfectly.



by:
2022 Chevrolet Silverado 2500

The wiring harness was super easy to install. The instructions are easy to understand. I highly recommend this to anyone wanting to add a 7-Pole trailer connection to the inside of their bed.



by:
2022 GMC Sierra 2500

Great Product!! Dealer wanted $200 to $300....Watched the accompanying video, and Installation was pretty straight forward on My 2022 GMC 2500HD. The only pain was getting at the Factory connection clip on the original plug... I chock that up to being my own fault for not dropping the spare tire down for ease of access...



by:

I liked this kit. It looks and feels like high quality. Installation was easy and it took very little time to get clean results. Etrailer was great to work with. I talked with Kim on the phone due to some questions that I had after I received my order. The call was professional and helpful. I would order from etrailer again.



by:
2022 Chevrolet Silverado 2500

Easy to install. Looks great.



by:
2020 GMC Sierra 2500

Excellent Installation and Timely Deliv ery!



by:

This product was exactly what I needed and has worked flawlessly for me for a year. Highly recommend it!



by:
2022 Chevrolet Silverado 2500

I was mad when I saw this, paid $200 to have installed in my previous truck’s bed. When I watched the video and saw it was plug and play I ordered and installed my self in less than 30 minutes. Shipping took a week but I won’t need it until the 3rd week of August when I head out with the fifth wheel. Product came as advertised with every thing needed to install. It looks factory (see pic). I am very happy with how it came out and the installation video was excellent.



by:
2023 GMC Sierra 2500

Easy installation.



by:

Amazing!! Fast delivery and no issued with items ordered. E- trailer is a great company!



by:
2020 GMC Sierra 2500

Product was easy to install and works great. There was some conflicting shipping information that I was receiving. All in all, it worked out ok.



by:
2024 Chevrolet Silverado 2500

Went together very simple and easy plugged it in and works



by:
2020 GMC Sierra 2500

Exactly what needed and ordered. Fast shipping. Thank you!



by:

Arrived the next day and I only selected basic shipping. This is the only company that seems to have what they sell in stock and ships quickly. Also if you have a problem they bend over backwards to make it right.



by:
2023 Chevrolet Silverado 1500

Excellent product.



by:

It was simple to install and worked great for a 12k mile summer trip.



by:

This was probably one of the fastest items to install on everything I have added to my 21 GMC Sierra 2500HD, Denali Duramax. The right angle plugs make it simply slip in, plug and play.



by:
2023 Chevrolet Silverado 2500

Good instructions and simple to install.



by:

Was perfect for what I needed.



by:

Just what I was needing for my 2022 Silverado 3500 HD. Worked perfect. Great accompanying videos to help with installation



by:
2021 GMC Sierra 2500

I love the setup but I have a concern that the connection in the bed once installed has a slight right angle into a sharp bed seam. It is at the spot right at the connector with no cable armor. I am concerned this will wear and cause a short down the line.

Etrailer Expert

Katrina B.

2/21/2023

I would need to see your set up that you have under the vehicle. Can you please send me a picture of what you are concerned about?



by:
2024 Chevrolet Silverado 1500

Fast delivery. Haven’t installed it yet



by:
2023 GMC Sierra 3500

Worked with Neil on a GMC 2024. U known if adaptable with new GMC. Built my confidence as we spoke. Anyway, it did fit and works great with camper and boat. Made my own face plate to use the dummy hole on the driver's side. Extended my RV cord to fit. No holes drilled in bed. Would of worked better with the GMC factory fit plug but not the case. Excellent. It does work with the 2024 GMC.



by:
2024 Chevrolet Silverado 2500

worked very well



by:
2020 Chevrolet Silverado 2500

Outstanding!


25
108
Show More Reviews

See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Recommended 5th Wheel Hitch for a 2022 GMC Sierra 2500 with 8' Bed and No Prep Package
    Absolutely, I can help you out with that. For your 2022 GMC Sierra 2500 with 8' bed and no prep package you will need both a set of rails and the 5th wheel hitch. The rails are going to be specific to your Sierra, for this I recommend the Curt Custom Fifth Wheel Installation Kit # C16429-204 which will provide you with industry standard rails in the bed of your truck. The industry standard rails will allow you to use the Curt A20 5th Wheel Trailer Hitch # C16140. This hitch has a limited...
    view full answer...
  • Is Sliding B&W Companion Needed on 2022 Chevy Silverado 2500 w/ 6 Foot 9 Inch Bed w/o Puck System
    So the answer to your question is yes, for your 2022 Chevy Silverado 2500 with the 6 foot 9 inch standard bed, you will need the B&W Companion Slider # BWRVK3400-5W instead of the fixed B&W Companion # BWRVK3500-5W to safely execute a sharp turn without hitting the cab. The way I determined this is with the following clearance formula: (A + B) - C = Clearance (At least 4 inches of clearance is recommended to safely execute a 90 degree turn) A = Distance from center of fifth wheel hitch...
    view full answer...
  • 5th Wheel Base Rails & Installation Kit For 2020 Chevy Silverado 2500
    For 5th wheel base rails and an installation kit for your 2020 Chevy Silverado 2500 that will work with both a 4WD and 2WD, as well as a short or long bed the best option is one from Curt: - Curt Custom Fifth Wheel Installation Kit for Chevy/GMC Truck # C16429-204 I recommend this kit for your Silverado because they do not require any drilling into your Chevy's frame rails to install. Not having to drill is not only great for your truck but will benefit you whether you are doing the install...
    view full answer...
  • Converting Demco Hijacker UMS Double Pivot 5th Wheel Hitch to 2020 Chevy Silverado 2500 Short Bed
    Thanks for the photo, and we do have a solution for you here to convert your Demco Hijacker UMS Double Pivot 5th wheel hitch so you can use it in your Chevy. There are indeed underbed rails for your 2020 Chevy Silverado 2500 short bed that will allow you to mount the hitch, though you will need to swap out the side rails of the hitch in order to fit the underbed mounting brackets. So, here is exactly what you will need for your '20 Silverado 2500: - Underbed Rail and Installation Kit for...
    view full answer...
    Image 1 for
  • Best 2024 Chevy Silverado 2500 Gooseneck Hitch Recommendation
    I highly recommend the B&W Gooseneck hitch for your 2024 Chevy Silverado 2500, which is the following part: - B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 This is a custom fit hitch that allows you to store the hitch ball upside down when not in use, giving you a completely clear bed. The receiver is also squared which gives you a way to use one of the Companion 5th wheel hitches if the need ever arises. One other thing I recommend installing on your truck is an in-bed...
    view full answer...
    Image 1 for
  • Recommended In Bed 7-Way Connector for a 2022 GMC Sierra 2500
    The Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C53CR is by far the best option for an in bed 7-way. I highly recommend it over the Hopkins item # HM54FR. Curt's wiring harnesses are far more reliable. GM uses Curt products for their towing equipment so if they have one in stock it is most likely the exact same part. I have linked an installation video below to help you with the installation process. I have also attached a couple of pictures that will show you what this connector...
    view full answer...
    Image 1 for Image 2 for
  • Does B&W Gooseneck Hitch BWGNRK1020 Fit 2021 Chevy Silverado 2500
    I checked with the manufacturer, B&W, for you and I can verify that the Turnover gooseneck hitch you asked about will absolutely fit your 2021 Chevy Silverado 2500: - B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 The B&W Turnoverball # BWGNRK1020 will fit either the standard bed or long bed for your '21 Silverado 2500, and will give you the single best gooseneck hitch possible for your truck. The reason for that is its heavy-duty construction and square base for its hitch...
    view full answer...
  • B&W Gooseneck Hitch Fit for a 2022 Chevy Silverado 3500
    The correct B&W Turnoverball Gooseneck Hitch for your 2022 Chevy Silverado 3500 is the part # BWGNRK1020. This fits both the short and long bed pickups, is made here in the USA, and is backed by a limited lifetime warranty. We've had the opportunity to install this on a 2022 Chevy 3500 which I'm attaching the video for you to check out. I also recommend picking up the Curt Wiring # C53CR which tees into the back of your 7-Way connector and gives you a 7-Way in your truck bed so it's easier...
    view full answer...
    Image 1 for
  • B&W Patriot 5th Wheel Hitch Fit For 2023 Chevy Silverado 2500
    We do have the correct B&W Patriot 5th wheel hitch for your 2023 Chevy Silverado 2500 without the OEM puck system, so the hitch will sit directly on base rails. I'll go ahead and list the part numbers for the Patriot hitch, with the right one depending on if you have an 8 foot long bed or a 6-3/4 foot standard/short bed: - Long Bed (8 ft): B&W Patriot 5th Wheel Trailer Hitch # BWRVK3255 - Standard/Short Bed (6-3/4 ft): B&W Patriot 5th Wheel Trailer Hitch w/ Slider # BWRVK3270 The sliding...
    view full answer...
  • Can I Install a Gooseneck Hitch in a 2023 GMC Sierra 1500?
    Yes, you can! Actually the B&W Turnoverball Underbed Gooseneck Hitch item # BWGNRK1019 fits all three bed lengths and the diesel models of the 2023 GMC Sierra 1500. This system includes custom fit brackets that bolt into existing holes in your Sierra's frame. This underbed system allows you to store the 2-5/16" hitch ball upside down and inside your bed when you are not using it. This gives you full access to your bed when you're not towing. The locking handle is easily accessible inside...
    view full answer...
  • Parts Needed to Use Reese M5 5th Wheel Trailer Hitch in a 2022 Chevrolet 3500 w/o Prep Package
    The Reese M5 5th Wheel Trailer Hitch # RP30928 you have which uses the 30926 Reese M5 ISR 5th Wheel Trailer Hitch Base mounts to industry standard rails. All that you would need to use the Reese M5 5th Wheel Trailer Hitch # RP30928 in your 2022 Chevrolet 3500 with out prep package is a set of industry standard rails like the Curt Custom Fifth Wheel Installation Kit # C16429-204. You may also want to add the Curt 5th Wheel/Gooseneck Custom Wiring Harness # C53CR to make hooking up your...
    view full answer...
  • Recommended Gooseneck Hitch for a 2021 Chevy Silverado 1500
    To install a gooseneck hitch in a 2021 Chevy Silverado 1500, I recommend the B&W Turnoverball Underbed Gooseneck Hitch item # BWGNRK1019. This system fits all three bed lengths and the diesel models. It includes custom fit brackets that bolt into existing holes in your Silverado's frame. The only drilling you will need to do is in the bed when you add the holes for the receiver and the safety chains. I have linked an installation video below to help you get it set up. To make towing...
    view full answer...
  • Troubleshooting Left Hand Turn Signal Not Working On Curt 5TH Wheel Wiring Harness # C53CR
    I would start by disconnecting the Curt 5th Wheel/Gooseneck Custom Wiring Harness # C53CR so you will be able to verify the issue is with this and not either the wiring or a fuse on your truck. Since you mentioned that both connectors are not working I fear it may be a part of the trucks wiring or a damaged connector going into the trucks wiring. Once you have verified this please let me know what you find. Do note the harness has a 1-year warranty through Curt.
    view full answer...
  • Recommended 5th Wheel Hitch For 2020 Chevrolet Silverado 1500
    I would be happy to recommend a 5th wheel hitch for your 2020 Chevrolet Silverado 1500. Starting with the base rails and installation kit I recommend the Curt Semi-Custom Fifth Wheel Installation Kit for Chevy/GMC Truck # C65KR which is confirmed to fit the 6-1/2' and 8' bed of the 2020 Chevrolet Silverado 1500 and will not require drilling into the frame of your vehicle. Moving on to the 5th wheel hitch I recommend the Curt A16 5th Wheel Trailer Hitch w/ R16 Slider # C16521 if your truck...
    view full answer...
  • Will the B&W Turnoverball Gooseneck Hitch BWGNRK1019 fit the 2024 Chevy Silverado 1500?
    Yes, it will! The B&W Turnoverball Underbed Gooseneck Trailer Hitch item # BWGNRK1019 has been confirmed to fit all models and bed lengths of the 2024 Chevy Silverado 1500 including the LTZ. I have linked an installation video below. To make towing with a 5th wheel easier, I recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C53CR. This harness puts a 7-way connector in the bed of your truck and allows you to keep the one on your bumper. This makes hooking up...
    view full answer...
  • Above-Bed 5th Wheel Base Rails For 2022 Chevy Silverado 2500 & Demco Autoslide 5th Wheel Hitch
    I can verify for you that there is indeed a 5th wheel above-bed base rail kit for your 2022 Chevy Silverado 2500 that will allow you to use your Demco Hijacker Autoslide 5th Wheel Trailer Hitch # DM8550034. What you can use is a custom base rail kit from Curt so you will not have to drill into the frame rails of your '22 Silverado 2500, with the correct fit being the following: - Curt Custom Fifth Wheel Installation Kit for Chevy/GMC Truck # C16429-204 This will give you industry standard...
    view full answer...
  • What is the Best Gooseneck Hitch for a 2023 GMC Sierra 1500?
    The best gooseneck hitch for a 2023 GMC Sierra 1500 is the B&W Turnoverball Underbed Gooseneck Hitch item # BWGNRK1019. It fits all three bed lengths and the diesel models. This system includes custom fit brackets that bolt into existing holes in your Silverado's frame. The only drilling you will need to do is in the bed when you add the holes for the receiver and the safety chains. This underbed system allows you to store the 2-5/16" hitch ball upside down and inside your bed when you...
    view full answer...
  • Gooseneck Hitch Fit For 2020 GMC Sierra 2500
    Hey Mike; thanks for the question and the part number you asked about is not a fit for the 2020 GMC Sierra 2500. There isn't an Elite Series for your truck but there is a very nice alternative for an underbed gooseneck that does fit, the B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit # BWGNRK1020. This hitch has been widely praised by our customers, with over 3,000 reviews at the time of this writing giving it a nearly 5-star rating. Like the Elite Series...
    view full answer...
  • Are There Replacement Mounting Brackets For An Air Lift Air Spring To Fit With A 5th Wheel Hitch
    While we don't currently offer the mounting brackets separately I can tell you that you need the Air Lift LoadLifter 7500 XL Air Helper Springs # AL57538 in order for your 2019 Chevy Silverado 2500 to have both a fifth wheel hitch and air springs. There are special instructions listed on page 9 for installing the kit when a hitch mounting bracket is already installed. You can try to reach out to Air Lift directly to see if you can get the correct mounting brackets, but both Air Lift and...
    view full answer...
  • Difference Between Curt 5th Wheel Base Rail Kits For 2021 GMC Sierra 1500
    That's a good question, and the only difference between the two base rail kits that fit your 2021 GMC Sierra 1500 (6-1/2 foot and 8 foot bed) is the finish. One is a glossy black finish and the other is a carbide black, which essentially means it just doesn't have quite as much shine to it. Otherwise, they are exactly the same, with the same parts and no-drill install in the frame rails of your truck: - Gloss Black Finish: Curt Semi-Custom Fifth Wheel Installation Kit for Chevy/GMC Truck...
    view full answer...
  • 5th Wheel Base Rails & Wiring Harness For 2021 Chevy Silverado 2500HD
    Sure thing, we can get your 2021 Chevy Silverado 2500 set up with 5th wheel base rails as well as a 5th wheel wiring harness so you can use your Valley 5th wheel hitch. Let's go ahead and start with the base rails for your truck, and the ones I highly recommend are from Curt: - Curt Custom Fifth Wheel Installation Kit for Chevy/GMC Truck # C16429-204 The reason I really like this install kit is because it does not require any drilling into your Chevy's frame rails to install. Not having...
    view full answer...
  • Recommended 5th Wheel Rails for a 2024 Chevy Silverado 1500
    To add a set of 5th wheel rails to your 2024 Chevy Silverado 1500, I recommend the Curt Custom 5th Wheel Installation Kit item # C65KR. This set of rails is industry standard which means they will work with most 5th wheel hitches on the market. They fit both the 6-1/2' and 8' bed lengths. To make towing with a 5th wheel easier, I recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C53CR. This harness puts a 7-way connector in the bed of your Sierra and allows you...
    view full answer...
  • Recommended Gooseneck Hitch for a 2021 GMC Sierra 1500
    To add a gooseneck hitch to your 2021 GMC Sierra 1500 Denali, I recommend the B&W Turnoverball Underbed Gooseneck Hitch item # BWGNRK1019. It fits all three bed lengths and the diesel models. This system includes custom fit brackets that bolt into existing holes in your Sierra's frame. The only drilling you will need to do is in the bed when you add the holes for the receiver and the safety chains. Please note that if you have the CarbonPro box you can not install a gooseneck hitch. None...
    view full answer...
  • Will the B&W Gooseneck Hitch Fit a 2021 GMC 1500 Denali w/out the Carbon Pro Bed?
    Yes, it will! The B&W Turnoverball Underbed Gooseneck Trailer Hitch item # BWGNRK1019 will fit the 2021 GMC Denali 1500's without the carbon pro bed. It fits all three bed lengths and the diesel models. This system includes custom fit brackets that bolt into existing holes in your GMC's frame. The only drilling you will need to do is in the bed when you add the holes for the receiver and the safety chains. I have attached an installation video below to help you get the system set up. To...
    view full answer...


< Previous
12



Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video by:
Joshua S
Employee Jonathan Y
Video by:
Jonathan Y
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F
Employee Ryan G
Test Fit:
Ryan G
Employee Bradley B
Test Fit:
Bradley B

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.