bing tracking image
  1. Custom Fit Vehicle Wiring
  2. GMC
  3. Sierra 1500
  4. 2014
  5. CURT
FITS 2014 GMC Sierra 1500
Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long

Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long

Item # C56000
Retail:$167.95
Our Price: $117.95
You Save: $50.00
Custom Fit Vehicle Wiring
Confirmed to Fit
2014 GMC Sierra 1500

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.

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 1500 2014. Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long part C56000 from CURT can be ordered online at etrailer.com. Complete custom fit vehicle wiring installation instructions and technical support.
  • All Info
  • Reviews (201)
  • Q & A (0)
  • Photos

2014 GMC Sierra 1500 - Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long

  • 7 Round - Blade
  • Fifth Wheel and Gooseneck Wiring
  • CURT

Mount this 7-way, RV-style connector in your truck bed for quick, simple hookup of your 5th-wheel or gooseneck trailer. Custom harness plugs in-line with your existing factory wiring so that you can retain use of your GMC Sierra 1500's factory 7-pole.


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
    • 10' Long, insulated wiring harness reaches from rear bumper to truck bed
    • Requires that truck have factory tow package
  • Custom fit for your vehicle
  • Includes zip-ties and self-tapping screws for installation


Specs:

  • Harness length: 10'
  • Wire configuration:
    • Yellow: reverse lights
    • Green: tail lights
    • Brown: right turn and brake lights
    • Blue: electric brakes
    • Black: 12V battery charge
    • Red: left turn and brake lights
    • White: ground wire
  • Limited 1-year warranty


56000 CURT Fifth Wheel and Gooseneck OEM Extension Harness - 7-Way RV Blade Plug - 10' Long

Installation Details C56000 Installation instructions

California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long - C56000

Average Customer Rating:  4.8 out of 5 stars   (201 Customer Reviews)

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

by:
Ford Escape

Installation was very straight forward.
I
used some left over pieces of foam pipe insulation over the cable where it passed over the truck frame and th inner wheel well. I mounted the extended Seven Pin connector just forward of the wheel well just below the bed rail on the driver's side.
The umbilical from our 5th wheel reaches with enough slack to lay on the truck bed.
We picked up our Escape 5.0TA two weeks ago and drove about 3300 miles from WA to MI.
The plug was easy to plug in and unplug.
Overall a very nice product.

Ronald

4/12/2024

After 1 year still very satisfied with this product. Would buy again.

Etrailer Expert

Jerred H.

5/10/2024

@Ronald That's awesome! Thanks for the feedback!


by:

Worked great, I traded the vehicle that I installed the wiring adapter in tho. So it may be of use to someone else also.



by:

Initially worked great, but now it keeps losing connection to the camper. I had to plug the camper in to the 7 way on the bumper to get home. Everything would seem fine but then getting on the highway I'd get a warning message on the dash and lose lights/trailer brakes. Not something you want happening at 70mph.



by:
2016 Chevrolet Silverado 3500

Truly happy with this product and can't wait to go to work! etrailer sent me everything I requested and the installer had no problems. Everything was packed well in shipping with no problems.



by:
2016 Ford F-350 Super Duty

This product makes it so simple to add a Fifth wheel plug into the bed. Installation takes maybe 20-30 minutes. I installed mine on the column at the tailgate so it is out of the way (less likely to get damaged by other cargo). The only issue I experienced with install was that due to the small opening in that column (from under the vehicle), I had to remove the gray wire cover and then reinstall it after feeding the wire harness up into the column. (This was minor) Would definitely recommend this as it is simply "plug n play" with no cutting of wires or crimping needed.

Richard P.

8/31/2017

Product and location has worked perfectly and keeps on doing so. Great product!



by:
2014 Ford F-250 Super Duty

Very pleased with etrailer.com. All product information and reviews help make decision very easy. Very quick delivery and installation instructions are very easy to follow. Purchased 5th wheel hitch and custom wiring extension for my 2014 F250.

Mike S.

6/9/2018

Thanks for the follow up. I’ve enjoyed the products ease of installation and use. I easily hook up my 5th wheel camper by myself and have had no issues. Great products!



by:

Product arrived overnight and I installed it upon arrival in order to be able to leave on a planned trip. Install was quick and easy and product was as advertised. I appreciated etrailer getting the order out immediately to me. Top rate company.



by:
2021 Ram 2500

direct fit plug and play had no issues!



by:
2016 Chevrolet Silverado 2500

The cord made the electrical part of installing my new fith wheel hitch very easy just plug in the connections and your done .

Kevin L.

10/23/2017

The products have worked flawlessly no problems and thank you for checking back with me its nice when a company cares about there costumers. Next time I need any trailer products I will definitely be contacting etrailer.



by:

Delivery was ahead of schedule. The product is top grade. I installed it myself which took all 45 minutes. Tested it on the trailer and everything worked perfectly.



by:

Plug and play. Works great.



by:

The trailer wiring extension worked perfectly for my 2013 2500HD setup. It was easy to install and makes hooking up and trailering that much easier.



by:

Nice long wiring harness.



by:

Awesome product fit the truck just like it should and very easy to install keeps me from scratching the tailgate with a wire over the back of the truck easy to reach when hooking up trailer



by:

Working very well yet!



by:

Easy install and a great product. Used on 5th wheel rv trailer. No more wiring cord from trailer hanging over the end gate. Thanks!



by:

Went on in minutes



by:

Customer service for product selection and order entry were excellent and focused on my interests and needs. The hitch, custom installation kit, and harness were shipped very quickly and arrived sooner than expected. Everything arrived in excellent condition. Assembly and installation instructions were very clear and specific, and I was able to assemble and install everything with no problems and in a very reasonable amount of time. Total cost was roughly half of what it would have been if I had purchased the products and had them installed by a dealer. I am very satisfied with my experience dealing with etrailer.com, and would highly recommend them to anyone shopping for towing products.

Peter C.

10/23/2017

Awesome. The hitch has worked great. Very, Very happy with the purchase,delivery, installation which I did myself, and performance of the product.Thanks again,Ill be sure to refer anyone who needs products you offer to you.



by:

Looks like an easy install good quality



by:
2006 Ford F-250 and F-350 Super Duty

I'm a huge fan of completing wiring projects with no "hacking" into harnesses. This harness is plug and play. When I finished installing it, the underside of the truck looks like it came from the factory. Job done

Jim

3/4/2018

I havent thought about it for a year. I can give no higher praise for a product.it does its job very well.



by:
2016 Ford F-350 Super Duty

I haven't installed it yet, however, I cut the inside bed wall in preparation for a spray-in bed liner before installing.
It looks just like the picture and description, arrived undamaged and ready for install. Great installation instructions!

Les

11/1/2017

Still using and I really like the hitch and other items I purchased a year ago. After installing the Curt fifth wheel hitch, Ive used it several times and I will be using it a bunch over rbe next several weeks. Easy to maintain and use.



by:
2019 Ram 2500

This is an easy install and seems well made. I probably didn’t need the 10’ long my truck called for but no problem zip tying up out of the way. Well pleased.



by:

This wiring harness made adding a plug in the bed of the truck for the gooseneck trailer a breeze. I didn’t really need the 10’ harness but I just looped and zip tied the excess. One year later and the plug still works great.



by:
2004 Ford F-250 and F-350 Super Duty

Do not like anything to do with automotive wiring so I purchased this item because it appeared to be just plug and play with no cutting or splicing wires. It is just that, plug and play and it was done.

Unplugged 7 point connector attached to bumper and plugged in the new wiring harness. One other plug was unplugged and wiring harness 2nd plug was plugged in. Route wiring loom along along factory wiring loom inside frame close to the front of my 2004 F 250 super Duty 8ft truck bed. Drilled hole and connected harness and plug so my slide in camper electrical will plug into this trailer plug. Screws to mount to inside of truck bed are stainless steel which is great to protect against rust. I also brushed Rustoleum paint inside the hole I cut so there was no bare metal surfaces exposed. 10ft wiring loom was the right choice to get plug up near the front of my 8ft bed.



by:
2019 Dodge Ram Pickup

Quality product with simple plug and play installation.
My 2019 Ram 3500 does not have the fifth wheel prep package. This (and Curt fifth wheel hitch rails / brackets also purchased) made it easy.
Have used this product since 10/2019...no problems in wet or (AZ) dry.


25
200
Show More Reviews

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

  • Which 5th Wheel 7-Way Adapter Fits 2008 Ford F-250
    While we have 5th wheel style 7-way relocation kits that do fit your 2008 Ford F-250 the one you have now is not a fit for your 2008 model so that is why you are not able to match the connectors of it to what your truck has. Instead you'd need an option like the # C56000 which does use the standard round connectors like what your truck does have.
    view full answer...
    Image 1 for
  • B&W Companion 5th Wheel Hitch Fit for 2013 Chevy Silverado 3500
    We do have the exact parts you need to install a B&W Companion 5th wheel hitch in your 2013 Chevy Silverado 3500. You didn't mention the size of your bed so I'll list the options for the fixed hitch if your Silverado is a long bed and the sliding version if you have a short bed. - Sliding Hitch: B&W Companion 5th Wheel Trailer Hitch with Slider # BWRVK3400-5W - Fixed Hitch: B&W Companion 5th Wheel Trailer Hitch # BWRVK3500-5W To mount either hitch in your 2013 Silverado 3500 you need...
    view full answer...
  • Will the Curt Gooseneck Wiring Harness Part C56000 Work on my 2016 Ram 2500?
    Yes the Curt 5th Wheel/Gooseneck Wiring Harness 7-Pole part # C56000 will work out great with your factory plug. It is designed to plug in behind the bumper in line with your factory harness so you will still have full function on your existing plug.
    view full answer...
  • Parts Needed to Tow a 5th Wheel Trailer with a 2003 GMC Sierra 6-1/2 ft Bed
    Since you have a 6-1/2 foot bed you are going to need a sliding hitch like the Curt E5 5th Wheel Trailer Hitch w/ R16 Roller # 16516 that you referenced. For the correct installation kit to install this hitch in the bed of your 2003 GMC Sierra you will need a Curt Fifth Wheel Installation Kit # C16418-104. Now for wiring to allow you to install a trailer 7-way in the bed of your truck as well you would want a Curt 5th Wheel and Gooseneck Wiring Harness # C56000. I attached the instructions...
    view full answer...
  • Can I Use the B&W Companion 5th-Wheel Hitch on My 2018 Chevy Silverado 3500?
    Typically, 2018 Chevy 3500s come with OEM prep. However, to make sure, there are a few ways to determine whether you have the OEM prep system. The first way is to remove the goose hitch and look for bolt entry points in your truck's bed. This is a dead giveaway. On the video I attached to this answer, it shows the bolt pattern of OEM prep at timestamp 5:22. Also, the existence of a 5th-wheel trailer wiring opening on the inside of the bed is also an indicator. If you determine that you...
    view full answer...
  • Recommended 5th Wheel Rail Kit for a 2017 Chevy Silverado 1500
    To add a set of 5th wheel rails to the bed of your 2017 Chevy Silverado 1500 you will want the Curt Custom Fifth Wheel Installation Kit item # C16400-204. This custom installation kit mounts in pre existing holes in your Silverado's frame. It will give you a set of industry standard rails that are compatible with most 5th wheel hitches. To make towing with a 5th wheel easier I recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long item # C56000....
    view full answer...
  • Recommended Custom 5th Wheel Rail Kit for a 2012 Ram 3500
    The correct rail kit for your 2012 Ram 3500 is the Curt Custom Fifth Wheel Installation Kit item # C16420-204. These brackets are custom fit and install in existing holes in your Ram's frame. This fits both the 6-1/2' and 8' bed lengths. 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 w/ 7-Pole Connector - 10' Long item # C56000. This harness puts a 7-way connector in the bed of...
    view full answer...
  • 5th Wheel Bracket/Bed Rail Kit for 2022 Ram 3500
    B&W offers a 5th wheel bracket/rail kit for your 2022 Ram 3500. The part # BWRVK2605 includes the frame brackets, hardware and the bed rails that have the industry standard slot layout. The rails are compatible with Industry Standard Rail compatible hitches from Reese, Curt, Husky, Valley, Demco, PullRite, B&W and others. To install a 7-way in your truck bed, use # C56000.
    view full answer...
  • B&W 5th Wheel Hitch Bracket/Rail Kit Compatible With PullRite 2700 SuperGlide foer 2022 Ram 2500
    The B&W # BWRVK2505 Custom Bracket/Rail Kit is a fit for a GM full sized truck, but we do offer a B&W kit that will fit your truck. For your 2022 Ram 2500, you'll need # BWRVK2602. The kit provides industry standard bed rails that will be compatible with your PullRite 2700 as long as it's an ISR series hitch. For a 7-way trailer connector that would install in your truck bed, use # C56000.
    view full answer...
  • Does Curt Underbed OEM-Style Gooseneck Hitch Fit 2022 Ram 2500 With Air Ride Suspension
    That's a good question, and yes, the Curt OEM-style gooseneck does fit your 2022 Ram 2500 with the air ride suspension; I checked with the manufacturer for you to verify this. The correct part number for your '22 Ram 2500 is the following: - Curt Custom Underbed OEM-Style Gooseneck Trailer Hitch # C60633 The # C60633 was a really nice choice because it installs under your Ram's bed, leaving the bed totally clear for when you need to use it. The only other thing you'll need if you don't...
    view full answer...
  • Comparing the B&W and Curt Underbed Systems for a 2022 GMC Sierra 2500
    I would be happy to compare the B&W Turnoverball System item # BWGNRK1020-5W to the Curt Underbed System item # C60642. Both of these systems are confirmed to fit the 6-3/4' and 8' bed lengths of the 2022 GMC Sierra 2500. The main advantage of the B&W over the Curt is that B&W has 5th wheel hitches made specifically for their turnover ball system. These hitches are some of the best 5th wheel hitches on the market. If you have a short bed and need a slider item # BWRVK3400-5W or the standard...
    view full answer...
    Image 1 for Image 2 for
  • B&W Turnover Ball Gooseneck Hitch Fit for 2011 Dodge Ram 1500 5-1/2 bed
    For the 2011 Ram 1500 5-1/2 foot bed, you'd use the B&W # BWGNRK1309 Turnover Ball gooseneck hitch. Because of the short bed, you'll either need an offset coupler # BWTEXA4200 on the trailer to gain 10 inches of additional clearance or an offset ball like # BWGNXA4685 for 4 inches of clearance. If you'd like to install a trailer connector in the truck bed, you can do so using part # C56000.
    view full answer...
  • Best 5th Wheel Base Rails & Brackets For 2024 Ram 3500
    The best 5th wheel base rail and bracket installation kit for your 2024 Ram 3500 is from Curt, with the correct fit for your truck being the following part number: - Curt Custom Fifth Wheel Installation Kit for Ram # C16430-204 The reason for that is because this kit does not require any drilling into your truck'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 yourself (saving hours) or having a professional...
    view full answer...
  • Recommended B&W Offset Ball for a 2012 GMC Sierra
    Thanks for the pictures! It looks like your 2012 GMC Sierra has the B&W Turnover Ball System item # BWGNRK1057. You will need the 4" Offset Ball for B&W Turnoverball Gooseneck Trailer Hitches # BWGNXA4085. The 2-5/16" offset ball will give you an additional 4" of clearance when towing your gooseneck trailer. You can use this with your Super Ride 5th Wheel hitch but since the hitch ball will add height you will need to make adjustments to your coupler accordingly. A better option would...
    view full answer...
    Image 1 for Image 2 for
  • What B&W Companion Hitch do You Recommend for My 2021 Chevy Silverado 3500?
    For a B&W Companion hitch that will fit your 2021 Chevy Silverado 3500, I recommend the # BWRVK3400-5W (20K gross towing weight). This hitch has 3 adjustable heights and comes with a built-in slider. With the hitch, you will need the Custom Underbed Installation Kit for B&W Companion 5W Hitch # BWGNRK1019-5W along with the Curt 5th Wheel/Gooseneck Wiring Harness 7-Pole # C56000 to complete the installation. I linked installation videos of these components to walk you through the processes.
    view full answer...
  • Will 2022 GMC Sierra 2500 Short Bed Need Sliding 5th Wheel Hitch
    B&W offers both a sliding version, part # BWRVK3775 and a stationary version # BWRVK3710 of their excellent Companion 5th wheel hitch. We typically recommend going with a sliding 5th wheel hitch on any truck with a bed shorter than 8 feet in length, to prevent the corners of the 5th wheel from striking the rear of the truck cab during turns. There are a few exceptions, though: • If your truck uses a rotating pin box such as the Reese Revolution/Sidewinder or Lippert Turning Point, these...
    view full answer...
  • Recommended Sliding 5th Wheel Hitch for a 2016 Ford F-250 Short Bed w/ Turnover Ball System
    Thanks for the picture! I have a solution for you but the Demco Autoslider item # DM8550022 requires access to your frame rails to be installed and it is not compatible with the B&W item # BWGNRK1111-5W you already have. To add a sliding hitch to your 2016 Ford F-250 short bed truck you are going to want the B&W Companion 5th Wheel Trailer Hitch w/ Slider item # BWRVK3400-5W. This is the only option to add a sliding 5th wheel hitch to your truck. The B&W Companion Slider has a 20,000...
    view full answer...
    Image 1 for
  • Can Reese Install Kit Be Used For B&W Patriot 5th Wheel Hitch On a 2008 Ford F-250
    In order to install the B&W Patriot 5th Wheel Trailer Hitch part # BWRVK3270 or part # BWRVK3255 on a 2008 Ford F-250 you can use any installation kit for above bed industry standard base rails. The Reese Quick-Install Custom Installation Kit part # RP50082-58 or the B&W Custom Installation Kit part # BWRVK2400 for example will work just fine. If you don't already have an in-bed wiring harness, the Curt 5th Wheel/Gooseneck Wiring Harness part # C56000 will be a good option.
    view full answer...
  • Adapter for Using Industry Standard 5th Wheel Hitch in Factory Pucks of Ram 2500
    To use an industry standard rail compatible 5th wheel hitch like your Reese 15K 5th wheel hitch with your factory pucks in your Ram 2500 short bed, you'll need a rail adapter like # RP30154. The adapter mounts in the pucks, and would provide industry standard 5th wheel rails for the hitch to mount to. You won't need the rails. For a short bed truck, you'll want to be sure to use a sliding hitch to provide the proper clearance between the front of the 5th wheel and the rear of the truck...
    view full answer...
  • Fifth Wheel Rails and Hitch That Looks OEM On 2019 Chevy Silverado 3500HD
    The aftermarket fifth wheel bed rail system that is the most like the factory puck system is the below bed Reese installation rails. The rails are designed for use with Reese Elite Series and Signature Series 5th wheel hitches. The 4 mounting holes of the rails sit flush with the bed much like the OEM puck system. If you have a 6-1/2 ft bed I recommend installation rails part # RP30868 and Reese Elite Series Pre-Assembled hitch With Slider part # BWRVK3370. If you have the 8 ft bed,...
    view full answer...
    Image 1 for
  • Gooseneck Hitch Fits for 2016 Ford F-250 Super Duty with 6-3/4-Foot Bed
    The B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1111 is indeed a confirmed fit for your 2016 Ford F-250 Super Duty with 6-3/4-foot bed. I verified this with my technical contact at B&W. For reference I have linked an installation video showing a 2015 F-250. If you also need a 5th Wheel/Gooseneck trailer wiring harness for your truck you can use the Curt # C56000. This is a simple installation at your existing 7-way; that bumper-mounted socket remains active after you install...
    view full answer...
  • Gooseneck Trailer Hitch and In-Bed Connector for a 2016 Ford F-250 Long Bed without Prep Package
    We carry several gooseneck trailer hitches that will fit your 2016 Ford F-250 long bed without the factory prep package. Reese makes the factory prep package and it is available aftermarket using # RP30138-26. It will also allow you to mount a 5th wheel hitch should you ever need to. To add a 7-Way trailer connector in the truck bed to make hooking up easier I recommend # C56000.
    view full answer...
  • 5th Wheel Trailer Hitch and Installation Kit for a 2016 Chevy Silverado 2500HD Long Bed
    I will be happy to make a 5th wheel hitch recommendation for your 2016 Chevy Silverado 2500HD long bed. First you will need an installation kit. You can use Curt installation kit # C16411-204. This is a custom installation kit so there is minimal drilling required for installation. For a 5th wheel hitch I recommend the Curt Q24, # C16245. This hitch is rated for 24,000 pounds, has a secure double-jaw designed, and the head is cushioned for a smoother ride. To add an in-bed 7-Way trailer...
    view full answer...
  • Reese 5th Wheel Installation Bracket/Rail Kit for 2020 Chevy Silverado 1500
    The Reese 5th wheel hitch install kit you've looked at, part # RP56015-53 is indeed a fit for your 2020 Chevy Silverado 1500. It is compatible with the 6-1/2 foot bed. If you don't already have a 5th wheel hitch, I'd recommend the # RP30083 from Reese. The hitch features a one piece jaw that grips the king pin super tight for a superior ride and round tube sliding rails that won't bind up on uneven terrain like the square tube ones can. I've linked to a product demonstration video for...
    view full answer...


< Previous
123. . .32



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


Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Andrew K
Video by:
Andrew K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Video Edited:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Video Edited:
Kathleen M
Employee Chris R
Video Edited:
Chris R
Employee Zach D
Video Edited:
Zach D
Employee Cole B
Installed by:
Cole B
Employee Randy B
Test Fit:
Randy B
Employee Brent H
Test Fit:
Brent H
Employee Shane H
Test Fit:
Shane H
Employee Robert C
Test Fit:
Robert C
Employee David F
Test Fit:
David F
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Updated by:
Amanda M
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle 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.


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