1. Custom Fit Vehicle Wiring
  2. Curt
  3. Custom Fit
  4. Fifth Wheel and Gooseneck Wiring
  5. 7 Blade
  6. 10 Feet Long
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
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Custom Fit Vehicle Wiring

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Curt 10 Feet Long Custom Fit Vehicle Wiring - C56000
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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. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56000 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (53)
  • Q & A (167)
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Curt Custom Fit Vehicle Wiring - C56000

  • Custom Fit
  • Fifth Wheel and Gooseneck Wiring
  • Curt
  • 7 Blade
  • 10 Feet Long

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.


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

This Product Fits The Following Vehicles



California residents: click here


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

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




Video Transcript for Curt 5th Wheel Wiring Harness Installation - 2016 Ram 2500

Speaker 1: Today on our 2016 Ram 2500, we're going to be taking a look at and showing you how to install the Curt 5th Wheel or Gooseneck Custom Wiring Harness, part number C56000. Here's what our 5th wheel and gooseneck wiring looks like when it's fully installed. It's going to give us a 7-way socket at the back of our truck, so that way when we're towing with a 5th wheel or a gooseneck, we'll have our connector right here.It does come with a spring-loaded weatherproof door to keep out some of the moisture and help corrosion from building up on the inside of our socket. Now, not only is this going to give you all the required lights on your trailer such as your stoplights, clearance lights, and your turn signals, now it's also going to give you all the functions of a 7-way, including your brake controller. That is, if the factory 7-way on your vehicle is connected that way as well.Now the way we're going to install this is there's going to be a T connector that goes between our factory 7-way and the back of our bumper, and it's going to run up to here. Our harness does come with a 10 foot lead, so there's plenty of wire to run it and most applications where you put it in the back of the bed here.One of the nice features of our harness here is that it does come preinstalled with wire alum across the entire length of our wire, helping protect it from the elements or anything else.

Now that we've gone over some of the features and benefits, let's show you how easy it is to get installed.To begin our installation, we're going to need to find a spot to mount our 7-way plug. Now right here just on the inside of our bed towards the bottom seems like a good spot to mount it. Now we're going to need a 2 1/8 hole saw, and I just want to mention you want to be extremely careful when you start drilling, because once you start drilling you don't want to push too hard and go through too far to the outside of the bed.Now if this happened where you go through the first piece and there is a secondary support piece back there, we are going to have to drill through that as well. It's never a good idea to leave bare metal exposed on your vehicle, so I'm going to come back with some clear spray paint and spray paint the inside of this so that I can prevent some of the rust.Now we'll going to have a couple different options of how we get everything routed, but this end of the plug is going to end up right here, and this is going to need to go towards the back of our bumper. So we can either feed this down or we can take this end and come from underneath and feed it up through.

Now we'll go ahead and try to feed this down. You may have a little bit of trouble getting it through the hole, in which case we might have to go through the bottom. It looks like we can feed it through, so we're going to feed this, letting it fall all the way down.Now we before we connect it I'm going to put a little dielectric grease on my connection points, and that's just going to help keep out some of the moisture and help any of the corrosion buildup from happening. Just line up the tabs on our socket and plug, make sure everything locks into place. Now we can get ready to mount our plug right here.Now on our kit they do provide us with some self-tapping screws, so I'm going to take my self-taping screws, I'm going to secure my 7-way to the side of my bed.

I'm going to repeat that for all the remaining holes. So here's my 7-way that I dropped down. Now we're going to get this over to where our factory 7-way and our bumper is, so I'm just going to go over my frame here and route it towards the center of my truck. Here's where our factory 7-way is and if we come to this tab right here, we're going to push down and it should release the plug, allow us to access the socket on the back.I'm going to take a little bit more dielectric grease and put it into my connections. Now we can take our 7-way that we routed over here and plug it in to the vehicle socket, make sure that it locks, put a little bit more dielectric grease on the other end of our connector.

We can plug it back into our factory socket. Make sure it locks. Now all we have to do is tidy up all the wires. We'll just put a few zip ties, just keep everything secure, and also so it's not hanging down.Now I got my tester plugged up. Now with an extra set of hands I'm going to have them run up to the front to make sure all my lights are working and everything's working properly. So we can see that our clearance lights are working. Now if we have the left turn signal, please. Now the right turn signal. Now the brakes. Now finally the brakes and both turn signals. Looks like everything's running good. Now while we're here we might as well check our brake controller. Now if we look up at the top, if our extra set of hands hit the manual override to make sure that the power's going through, we can see that's working as well. Now we're ready to hit the road.That will finish up our look at the Curt 5th Wheel or Gooseneck Custom Wiring Harness, part number C56000 on our 2016 Ram 2500.


Customer Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (53 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.

- C56000
by:
GMC

Product fit and performs perfectly on my GMC Sierra 647258



- C56000
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. 390373


Comments
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!
Mike S - 06/09/2018

39498

- C56000
by:
2015 Ford F-250 Super Duty

Wow! I ordered the products on Monday night (after 7p.m CDT) and I had the items on my property Friday afternoon! Great shipping speed which is really order processing and getting the product out so UPS could deliver it. I ordered the Curt A16, custom rails for my 2015 F250 and the Curt harness. All three items took me about 4 hours to install--mostly by myself. The install was easy, but I needed the tools that were listed in the videos--WHICH is one of the reasons I ordered from etrailer.com --the videos for installation and product research, not to mention free shipping. I researched the products for several months before ordering, no other site compares to etrailer.com...the educational product videos really helped me make a decision. Tools that are needed or at least will help make this quicker--Hydraulic jack, safety jacks, impact wrench, Electric drill, 2 1/8" hole saw for the harness plate mount, 9/16" bit, tape measure, hammer, long straight screwdriver for tapping spacers into place, some good light, and an uninterrupted afternoon in your garage. I am so glad I ordered from etrailer.com and would recommend all of these above products. THANK YOU!!! 371329



- C56000
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 . 294808


Comments
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.
Kevin L - 10/23/2017

29805

- C56000
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! 286124


Comments
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.
Les - 11/01/2017

30401

- C56000
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. 289606


Comments
Product and location has worked perfectly and keeps on doing so. Great product!
Richard P - 08/31/2017

27773

- C56000
by:

Works as advertised 734763



- C56000
by:

plugs on all the plugs as needed, could be made a little shorter. 732772



- C56000
by:

Totally impressed with etrailer, extremely happy with the whole shopping experience. Very user friendly website with plenty of "How To" assistance. Only recommendation I would have would be to wrap the heavy hitches a little better as mine arrived with the cardboard damaged and my hardware was loose in the box, fortunately everything was there. Would not hesitate to purchase from them again!! Thanks!! 732657



- C56000
by:
2019 Dodge Ram Pickup

Works as advertised. This wiring harness is being used to connect from a 2019 Ram 3500 8' box to a slide in truck camper. I ran this harness across and then up through and over the drivers side wheel well to have the connector available in front of the wheel well and behind the fuel door. Plenty of space in the area between the box wall and truck wall without interfering with any of the fuel or breather lines. 726118



- C56000
by:
2018 Ram 2500

Easy install perfect fitment 713469



- C56000
by:

The website couldn’t be easier. I typed in my vehicle and it showed me all items I needed for a fifth wheel hitch. 714708



- C56000
by:
2015 Ford F-250 Super Duty

Purchased this hitch, install kit, and wiring harness for a new to me 2015 F-250. After watching the installation video and reviewing the included instructions the install went smoothly. The only deviation from the instructions was instead of using a unibit to drill the 9/16" holes in the bed I used a Rotobroach hole cutter(the holes are cleaner and the bit does not drift. I hooked in to my fifth wheel for the first time on Saturday. 699221



- C56000
by:

Quick delivery and reasonably priced. I will purchase from etrailer again. 661166



- C56000
by:
2003 Chevrolet Silverado

Product arrived and installed as presented. All aspects was as described. 639432



- C56000
by:

Great wire kit, easy install. Instructions were excellent and easy to fallow. No troubles at all. 637506



- C56000
by:

Awesome works great with my 5th wheel and gooseneck horse trailer. 633300



- C56000
by:

Product was as advertised, very clear instructions and installation was a breeze, as always etrailers customer service is top notch. 617052



- C56000
by:
2016 GMC Sierra 2500

I am so glad that I purchased this extension and relocation unit. I installed this myself outside in my driveway in about an hour. Everything was there that I needed (other than the hole saw) to install. I haven't had a single electrical issue with this plug or my factory plug since installed. Looks great in the bed also. 589980



- C56000
by:
2016 GMC Sierra 2500

etrailer is the man 564601



- C56000
by:

As described, priced good, what we wanted, chose fast shipping and paid for it and got it when we needed it. Thank you 557914


Comments
Damn good cause it’s made in America.
LT - 08/25/2019

60389

- C56000
by:
2018 Ford F-250 Super Duty

Works great 515342



- C56000
by:

Erica B you are the greatest , your customer support was ABOVE & BEYOND you did more for me than most company's ever do . Keep up the good work . Only if we could get the manufactures [CURT] to do what you did. Thanks once again Erica you made my day and then some . Tom 501432



- C56000
by:
2007 Ford F-250 and F-350 Super Duty

Great product!!!! Use the video they have to install. Hooked right up, took me less then 30mins to install and test. First time doing it with no help except video. Love you guys. Wish you guys had an account I could get to save my profile. Will shop more from you guys. 499513



- C56000
by:
2016 Honda Pilot

This was a great product, works exactly as advertised. A couple of things to note for install on a newer (2011-2016) model truck: 1. The Diesel Exhaust Fluid reservoir/pump makes the driver-side part of the install a pain in the butt. Particularly drilling the holes in the bed for the tow-chain loops. You have to drill from the underside of the bed, however there is almost no clearance between the DEF setup and the bed. I had to use an air grinder (90 deg) with a shorty bit to drill a small pilot hole on the front hole, and then measure the distance and drill the rear hole from the top down (blind). 2. The frame clamp (u-bolt) on the driver-side needs to be smashed a bit with a hammer to get it into position to fully clamp down. Last thing (not necessarily about late model Ford), it is almost impossible to get a torque wrench in to tighten the adapter plates to the actual hitch. I just put a 1/2" drive flex head on my air-gun and went to town. Other than these things it installed pretty well...could have used a lift. I'm a curt fan! 485057


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  • 5 Puck System For 2015 Ford F-350 Super Duty and Slider Hitch
    For a 5 puck system in the 2015 Ford F-350, I recommend Reese Elite Series Under-Bed Gooseneck Trailer Hitch for Ford Super Duty part # RP30138-26 which will give the same thing as an OEM puck system with the removable gooseneck ball in the middle. The removable 2-5/16" ball and safety chain loops are included. I have attached an installation video for your reference. Since the Reese Elite Puck system holes are in the same exact location as Fords OEM puck system, I recommend to use the...
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  • Recommended Fifth Wheel Brackets and Fifth Wheel Hitch for 2004 Ford F-350 Super Duty Dually
    There are custom fifth wheel installation kits that fit your 2004 Ford F-350 dually but the Installation Kit # C16448-104 you referenced does NOT fit; this kit is only for 2005-2011 Ford Super Duty trucks. Instead I recommend the Curt Custom Fifth Wheel Installation Kit for Ford F250 and F350 # C16443-204, which does fit your F-350, because the custom fit will lessen the amount of drilling and time it takes to install the brackets compared to universal installation kits. If you are...
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  • Fifth Wheel Install Bed Rail/Frame Bracket Kit for 2003 GMC Sierra 2500
    For the correct fifth wheel bed rail/frame bracket kit for your 2003 GMC Sierra 3/4 ton, use the # C16418-104 from Curt. The # C16411-104 you had looked at fits later-model Sierra/Silverados, and wouldn't work for your truck. If you need to install a trailer connector in the truck bed, I'd recommend going with part # C56000. I've linked to install videos for the bracket/rail kit as well as the wiring I recommended.
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Info for this part was:

Edited by:
Leah B
Expert Research:
Jackie C
Expert Research:
Jameson C
Video by:
Andrew K
Written by:
Lindsey S
Video Edited:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Kathleen M
Video Edited:
Chris R
Video Edited:
Zach D
Installed by:
Cole B
Test Fit:
Randy B
Test Fit:
Brent H
Test Fit:
Robert C
Updated by:
Amanda M
Updated by:
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Updated by:
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