1. Custom Fit Vehicle Wiring
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  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 # C56001
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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 C56001 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 (5)
  • Q & A (29)
  • Videos (1)
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  • Used (1)
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Curt Custom Fit Vehicle Wiring - C56001

  • 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.


  • 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


  • 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

56001 CURT Fifth Wheel and Gooseneck OEM Extension Harness - 7-Way RV Blade Plug - 10' Long

Installation Details C56001 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Reviews

Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long - C56001

Average Customer Rating:  5.0 out of 5 stars   (5 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.

- C56001
2007 Chevrolet Silverado 1500

This is my first hitch. I decided to go this route after finding out the dealership wanted over 1500 to install rails hitch and plug. Install was not too aweful bad I did the install in about 4 hours of everything. I took my time so nothing would be screwed up. The install videos where awesome and very discriptive. 349955

- C56001

Installation was a breeze, works perfec tly. 769506

- C56001

Fits great ,works fine. 540266

- C56001
2002 Dodge Ram Pickup

For as expected, 10'is a bit long for a short bed truck, just had to coil up the extra and the it up under the bed. Works well though and installation was easy, no cutting wires! 529893

- C56001

Products arrived in Alaska within a couple of days of making the order online. Easy to find the product needed on the website. Great installation instructions, both video and written. Perfect fit with no fuss. 470916


Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • Is there a 7-Way Extension that is 12 to 18 Inches Long
    It will require a little hardwiring but you can use extension # PK11-934. One end plugs into the back of a standard US car connector 7-Way. The other end has blunt cut wires that will need to be spliced into the existing harness you have. Another option would be to cut the wiring harness somewhere and splice in additional wires using # DW04914-1 which is sold by the foot. I recommend 2 feet in case you need some slack so you would enter 2 in the quantity box. I recommend using heat shrink...
    view full answer...
  • Will Curt 5th Wheel/Gooseneck Custom Wiring Harness Fit a 2004 Dodge Ram 1500
    Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long Item # C56001 is designed to fit if your 2004 Dodge Ram 1500 came with a factory installed 7-Way trailer connector. It plugs in line with the factory connectors and provides a second 7-Way connector you can mount in the truck bed (or anywhere that it will reach). If your truck did not come with a factory installed 7-Way let me know what it does have and I can make some recommendations to add a 5th wheel/gooseneck...
    view full answer...
  • Will Curt Fifth Wheel/Gooseneck Hitch 7-Way Fit a 2000 Dodge Ram 3500
    For your 2000 Dodge Ram 3500 the Curt Fifth Wheel Gooseneck wiring kit part # C56001 has been confirmed as a fit to allow you to install a second 7-way up in the bed of your truck for easy connection to a gooseneck or fifth wheel trailer. For just a replacement 7-way you would need the part # PK11893.
    view full answer...
  • Troubleshooting Short to Battery Message with Prodigy P3 Controller When it Rains
    Water is seeping into the new 7-way most likely and is causing a short between the 12 volt output circuit and the brake output circuit. The water is somehow getting introduced into the round connector behind the 7-way. It could also be at the 7-way at the rear of the vehicle too. I'd recommend taking the connector apart to allow it to dry and then using dielectric grease like part # 11755 which will prevent the water from getting back in.
    view full answer...
  • Curt E16 5th Wheel Hitch Compatibility with 2005 Ram 2500 and 11,200 lb 5th Wheel Trailer
    The Curt E16 5th Wheel Trailer Hitch - Slide Bar Jaw - 16,000 lbs # C16115 is large enough to tow a 11,200 lbs trailer regardless of the length. For your 2005 Dodge Ram 2500 long bed I recommend the Curt Custom Fifth Wheel Installation Kit for Dodge Ram - Carbide Finish # C16420-204 which will fit your truck frame without any drilling. Your other option is to use the Curt Universal Fifth Wheel Base Rails with Installation Kit - Carbide Black Finish # C16200 which will require drilling...
    view full answer...
  • Is Curt Goose Neck Hitch C640-635 a Complete System Including Brackets and Hitch
    The Curt 30K Gooseneck Hitch with Installation Kit # C640-635 is a complete goose neck hitch system that includes the frame brackets, hitch head and 2-5/16-inch hitch ball. It is a confirmed fit on your 1996 Ram. For a wiring harness you can use # C56001.
    view full answer...
  • Reese 5th Wheel Installation Bracket Kit for 2006 Dodge Ram 2500 Mega Cab
    For a custom 5th wheel installation bracket kit for your 2006 Dodge Ram 2500 Mega Cab to install your Reese base rails you can use # RP50140. For hardware to secure the rails to the brackets use part # RP58430. If you need a 5th wheel wiring harness for the truck bed you can use part # C56001.
    view full answer...
  • No-Drill 5th Wheel Hitch Installation Kit for 1995 Dodge Ram 2500 4x4 Long Bed
    The easiest 5th wheel base rail installation will be with a custom-fit kit. For your 1995 Dodge Ram 2500 4x4 long bed we offer the Husky kit # HT31404-686 which does still require some frame drilling for installation but less than universal kits like # RP30035. We do offer other kits that do not require any frame drilling. These are the B&W Underbed Installation Kit # BWGNRK1394-5W that works with their Companion 5th wheel hitch # BWRVK3500-5W. This set-up gives you both goose neck and...
    view full answer...
  • Gooseneck & 5th Wheel Hitch Recommendation for 1997 Dodge Ram 3500 Dually Long Bed
    We can offer you a choice of several under-bed gooseneck hitches for your 1997 Dodge Ram 3500 dually long bed. You can see all by clicking on the link provided. The one I recommend is the B&W kit # BWGNRK1394. An install video is provided. I suggest this for its outstanding USA-made build quality that is second to none, for its limited lifetime warranty and because this gooseneck allows you to instantly convert the truck to 5th wheel towing by simply dropping in B&W's Companion 5th wheel...
    view full answer...
  • Replacing Factory 7-Way and In-Bed 7-Way Trailer Connectors on a 1999 Dodge Ram 2500
    For your 1999 Dodge Ram 2500 with factory 7-Way you can use 5th wheel/gooseneck wiring harness # C56071 for a 7 foot long model or # C56001 for a 10 foot model. For the rear 7-Way you can use 7-Way # PK11893 if the harness on the back of your 7-Way is the standard round US car connector. If it isn't then you would also need # PK11998 and would need to hardwire it in by function by testing the wires on the truck with a circuit tester such as # 40376. The functions of harness # PK11998...
    view full answer...
  • Recommended Install Kit for Valley 5th Wheel Hitch on 1998 Dodge Ram 2500
    Although Valley is not around any longer, we used to carry their products so I can say with confidence that their fifth wheel hitches were compatible with industry standard bed rails constructed by Reese, Curt Husky and others. Reese offers a Universal fifth wheel hitch install kit, part # RP30035 that uses industry standard fifth wheel bed rails that would be compatible with your Valley sliding hitch. This is a similar kit to the Curt # C16200. Since your truck bed is 8 feet long,...
    view full answer...
  • Recommended Sliding 5th Wheel Hitch Between Demco, Husky, Curt, and Reese
    All four manufacturers, Demco, Husky, Curt, and Reese are great companies that have been in the 5th wheel towing business for a long time. I would have no problem recommending any of them for a towing setup. Since your 1999 Dodge Ram has a 6 foot bed you will need a sliding 5th wheel hitch to give you extra turning clearance for those tight turning situations. The best 5th wheel sliding hitch that we have to offer is from Demco. The Demco Hijacker Autoslide 5th Wheel Hitch enables...
    view full answer...
  • Is a Sidewinder Pin Box Compatible With a B&W Turnoverball Gooseneck Hitch?
    To use any Sidewinder pin box like # RP61452, you will not be able to keep your B&W Turnoverball Gooseneck hitch because it is not made for the torque when turning required for that system. No adapter will solve this. However, there is still a way to allow you to tow a gooseneck trailer using a 5th wheel rail kit. You have a couple options. If you want to keep a clean bed, then you can use the Under-Bed Rail and Installation Kit for Reese Elite Series 5th Wheel Trailer Hitches # RP30074...
    view full answer...
  • Is 7 Foot Long 5th Wheel Trailer Wiring Harness Long Enough for an 8 Foot Truck Bed
    The 7 foot long Curt fifth wheel wiring harness your purhcased, part # C56071, should fit just fine in your truck even with the 8 foot bed. However, you probably will only be able to reach the rear part of the bed behind the wheel wells. There is the 10 foot version, part # C56001, which will likely increase your options as to where in the bed you can install it due to the added length.
    view full answer...
  • Will Pro Series 5th Wheel Trailer Hitch and Universal Install Kit Fit a 1998 Dodge Ram Long Bed
    Yes, the Pro Series 5th wheel trailer hitch with universal installation kit, # PS30128, will fit your 1998 Dodge Ram long bed. I have included a link to the instructions for the universal kit and a video showing an example installation on a similar truck you can use as a guide, though the installation will not be exactly the same. I also recommend adding an in-bed 7-Way trailer connector, # C56001, to make hooking up easier. I have linked a video and the instructions for the wiring as well.
    view full answer...
  • Installation Brackets for 5th Wheel Hitch to Be Installed in 2007 Dodge Ram 1500
    Any brand of industry-standard 5th wheel hitch will fit into any brand of industry-standard base rails, but the frame brackets that secure the rails to the truck frame should not be mixed with base rails from another maker since there can be compatibility issues. So in other words, you will want to use brackets from the same maker as your base rails (again, the hitch brand does not matter here). The linked page shows you all 5th wheel hitch fits for your 2007 Dodge Ram 1500 6-foot-bed...
    view full answer...
  • Curt 5th Wheel Base Rail Kit Options for 2003 Dodge Ram 2500 Diesel 4x4 Pickup
    For your 2003 Dodge Ram 2500 diesel 4x4 pickup you can use Curt Universal Base Rail Kit # C16200 as long as the truck does not have overload brackets. Universal kits cost a little less but they require more drilling and a longer overall installation time. The fastest and easiest 5th wheel base rail installation comes from using a custom-fit kit # C16420-204 that includes custom frame brackets that use existing holes in the frame. This means a lot less drilling. Semi-Custom kit # C16301-200...
    view full answer...
  • Recommended Curt Sliding Fifth Wheel Hitch for 2007 Dodge Ram Short Bed
    To tow a fifth wheel trailer with your 2007 Dodge Ram with a 6-1/2 foot bed you will need to install base rails in your truck bed in order to mount a Curt sliding hitch. Base rails come with installation kits and there are two different options for an '07 Dodge Ram, depending on the model of your truck; I will list the kits and you can select the right one. Keep in mind these kits come with both the base rails and frame brackets so you do not need to purchase them separately. - 2007...
    view full answer...
  • Where Should King Pin Sit in the Bed of a 1997 Dodge Ram 2500 for 5th Wheel Towing
    Typically the king pin will be located directly above, or slightly forward of the rear axle on any given pickup. If you were to install a universal base rail kit like the Reese # RP30035 on your 1997 Dodge Ram 2500 the (linked) instructions state that the king pin will be about 2" forward of the axle center. I have attached a picture of the instructions that show where you would install the base rails in relation to your truck bed. I recommend going with the Reese single-jaw 5th wheel...
    view full answer...
  • 5th Wheel Sliding Hitch Compatibility With Gooseneck Underbed Hitch
    With your current gooseneck hitch, you can use the Hi-Rise Gooseneck-to-5th-Wheel Trailer Hitch Adapter by Bulldog, Draw-Tite and Reese # 9480. The issue is that you don't have a sliding option with that hitch so it would give you very limited turning. An option is to use the Curt X5 5th Wheel Base Rails Adapter for Curt Double Lock Gooseneck Trailer Hitches - 20,000 lbs # C16210 that SHOULD be compatible with your gooseneck hitch. Based on all I can research it looks like it will...
    view full answer...
  • 5th Wheel Installation Kit for 1998 Dodge Ram Pickup
    We do have 5th wheel hitch installation kits that include the frame brackets, hardware and hitch base rails. These are industry-standard rails that work with all brands of standard 5th wheel hitch. I recommend the Husky custom install kit # HT31404-686. This kit fits both 6-foot and 8-foot bed models. Drilling is required. There is not a no-drill kit for your truck. For an in-bed wiring harness you can use part # C56001.
    view full answer...
  • Will Upgrading To Self-Adjusting Brake Assemblies Require Changing Out Hub/Drum Assemblies?
    The Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA will work with your existing hubs. This kit comes with both assemblies and they are labeled for installation on the proper side of your trailer. There is a manual adjustment needed at install and then they will self-adjust following that installation.
    view full answer...
  • Custom 5th Wheel Hitch Installation Kit for 2007 Dodge Ram 1500 Mega Cab with 6-Foot Bed
    For your 2007 Dodge Ram 1500 Mega Cab with 6-foot bed I recommend a custom-fit 5th wheel installation kit that will reduce your install time. The lowest-price option currently is the Curt # C16420-204 which includes the base rails, custom under-bed brackets and hardware. You can refer to the linked video for a complete illustration of the installation process. If you need a 5th wheel wiring harness for the truck bed you can use part # C56001 Since your truck is a short bed, slider...
    view full answer...
  • 5th Wheel Hitch Type and Installation Kit for 2006 Dodge Ram 2500 Short Bed
    If the hitch from the 2017 Ram is intended for the factory puck system, such as the B&W # BWRVK3670, then it cannot be installed in a truck with standard 5th wheel base rails. Your 6-foot bed Ram 2500 needs to use a sliding-type 5th wheel hitch like Curt # C16536 in order to have the turning clearance required to avoid the trailer overhang contacting the truck cab. The easiest base rail installation in your 2006 Ram 2500 will be with a custom install kit that requires less drilling....
    view full answer...
  • Recommended 5th Wheel Hitch and Installation Kit for 2006 Dodge Ram 2500 Mega Cab Pickup
    The main benefit of a 5th wheel hitch that has a 4-way pivoting head is easier hitching and un-hitching. The ability to pivot in all directions means the head will be better able to shift as required to accept the king pin, and of course to release it too. Ride quality is not so much a benefit of this feature. Since your trailer has a Lippert Turning Point pivoting pin box for improved turning clearance you can use a fixed (non-sliding and non-cushioned) type 5th wheel hitch. For an...
    view full answer...
  • Recommended 5th-Wheel Hitch for 2005 and 2006 Dodge Ram 3500 w/ 6 Foot Bed
    The Curt Q25 5th Wheel Trailer Hitch # C16265 referenced in your question is compatible with standard, above-bed base rails. If there are standard, above-bed base rails installed on both the 2005 and 2006 Dodge Ram 3500, then this hitch will technically fit either truck. However, since you mentioned that your truck has a shorter, 6 foot bed, it is instead recommended to use a sliding 5th-wheel hitch in order to provide proper clearance when making turns. I recommend looking at the Curt...
    view full answer...
  • Recommended 20K Sliding 5th Wheel Hitch and Install Kit for 2008 Dodge Ram 6-Foot Bed Mega Cab
    Reese and Curt both make quality 5th wheel hitches. At a given price point a Curt 5th wheel can tend to include more features than a similar Reese or Pro Series. For example, Curt Q20 Sliding 5th Wheel Trailer Hitch # C16536 features a 360-degree pivoting cushioned head while the Reese # RP30083 is a 4-way pivoting type. The Curt will make hitching easier (thanks to the 360-pivoting head) and deliver a smoother ride (thanks to the cushioning). The Curt Q20 also has a smaller price tag AND...
    view full answer...
  • Best Underbed Fifth Wheel Towing Setup Recommendation for a 1995 Dodge Ram 2500
    For an underbed fifth wheel setup confirmed to fit your 1995 Dodge Ram 2500 with an 8 foot bed you would want the B and W Companion hitch setup that consists of part numbers # BWRVK3500-5W for the fifth wheel hitch and then part # BWGNRK1394-5W for the underbed kit. This is the only underbed setup available for your truck, but the great news is that the Companion hitch is often referred to as the best fifth wheel hitch around. You will really like this hitch and it costs less than the...
    view full answer...
  • Can I Transfer 5th Wheel Hitch Base Rails from a 1999 Dodge Ram 2500 to a 2001 Dodge Ram 2500
    Your 1999 Dodge Ram 2500 base rails can transfer to your 2001 Dodge Ram 2500 (because they are in the same generation). You will need to get new custom fit wiring # 51-97-411 (the 1999 custom fit wiring is # C56001) & replacement hardware kit for Draw-Tite and Reese 5th wheel hitches # 58164. I included a couple installation videos and a helpful article for you too.
    view full answer...

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Notes: May have damaged packaging or minor cosmetic blemishes.

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Info for this part was:

Edited by:
Leah B
Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Amanda M
Updated by:
Kristina F
Updated by:
Isabelle B

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