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Price: $38.20

Curt Universal 5th Wheel/Gooseneck 7-Way Extension - 7' Long

Item # C56080

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curt custom fit vehicle wiring 7 blade c56080
curt custom fit vehicle wiring 7 blade
curt custom fit vehicle wiring  c56080
curt custom fit vehicle wiring fifth wheel and gooseneck
curt custom fit vehicle wiring 7 blade c56080
curt custom fit vehicle wiring fifth wheel and gooseneck universal 5th wheel/gooseneck 7-way extension - 7' long

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curt custom fit vehicle wiring fifth wheel and gooseneck 7 blade c56080


  • Universal Fit
  • Fifth Wheel and Gooseneck Wiring
  • Curt
  • 7 Blade
  • 7 Feet Long
Extension plugs into your existing 7-way, RV-style connector to route functionality from the rear of your vehicle to your truck bed for quick, easy hookup of your 5th-wheel or gooseneck trailer. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56080 or order online at Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Universal 5th Wheel/Gooseneck 7-Way Extension - 7' Long. Custom Fit Vehicle Wiring reviews from real customers.

Curt Custom Fit Vehicle Wiring - C56080

Extension plugs into your existing 7-way, RV-style connector to route functionality from the rear of your vehicle to your truck bed for quick, easy hookup of your 5th-wheel or gooseneck trailer.


  • Provides 7-way, blade-style connector in your truck bed for hassle-free hookup of 5th-wheel and gooseneck trailers
    • Plugs into existing 7-way, RV-style connector - no cutting or splicing
  • 7' Long, insulated wiring harness reaches from rear bumper to truck bed


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

56080 Curt Fifth Wheel and Gooseneck Universal Extension - 7-Way RV Blade - 7' Long

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Video of Curt Universal 5th Wheel/Gooseneck 7-Way Extension - 7' Long

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

Video Transcript for Curt Custom Fit Vehicle Wiring Wiring C56080 Review

Today, were reviewing part number C56080 from Curt. This is Universal 5th Wheel and Gooseneck 7-way Extension. The cable is 7 feet long and of course, its insulated and you simply plug the round end into your existing RV style connector and then this 7-way plug stays in your truck bed and its available for you when youre ready to tow your 5th wheel or gooseneck. This comes with a limited one year warranty. There you have it for part numb C56080 from Curt, the Universal 5th Wheel and Gooseneck 7-way Extension.

Customer Reviews

Curt Universal 5th Wheel/Gooseneck 7-Way Extension - 7' Long - C56080

Average Customer Rating:  4.8 out of 5 stars   (21 Customer Reviews)

Extension plugs into your existing 7-way, RV-style connector to route functionality from the rear of your vehicle to your truck bed for quick, easy hookup of your 5th-wheel or gooseneck trailer.

- C56080

by: Kate B07/03/2017

We purchased a new 5th wheel so had to upgrade the wiring harness. This harness was a simple plug and play and works great with our new 5th wheel. My husband leaves it plugged into his wire harness under the bumper and has it run up between the tailgate and the back of the bed and just leaves it in his truck. We do have a cover on our truck so it is not exposed to the elements. I would highly recommend this wiring harness to anyone. 401191

- C56080

by: Daryl O.07/06/2017

Decent hitch but etrailer again shorted me parts. I contacted etrailer and told them the parts that were shorted. They did not take responsibility and blamed it on the manufacture. This is now the second time I have had problems with etrailer in the last 6 months. Now my customer is pissed that the hitch will take an additional 1 week for the missing parts to be shipped. I am done with etrailer. 402260

- C56080

by: Tony A01/28/2014

We bought a new travel trailer and the cord was loose and a little short on tight turns. This has solved that problem and it has done what I thought it was going to do. When I initially was ordering I had questions about which product would suit my needs and all of my questions were answered. I would not hesitate to buy another product. 115049

- C56080

by: Rod P.06/29/2013

Works great, no worry of unconnected wiring from too tight harness 86739

- C56080

by: Glover G05/31/2015

All three of the products we bought had a good solid snug fit, insuring a good connect. We have them all connected and have used them for a few days with no problems. I am glad we found your site and it easy to locate the products/adaptors that we needed. 199263

- C56080

by: Michael Wade08/01/2017

Exactly what I needed and had been looking for. My trailer wiring wasn't long enough for my new truck and I need an extension. Thought about making one myself but this was so much better. I won't hesitate to look on your web site for any future needs. 413705

- C56080

by: silverpalacedan12/31/2013

The 7-pin extension is the perfect solution, allowing me to work on the trailer lights and brakes while at home. I am impressed with the selection of products available and will undoubtedly make more purchases throughout the year! 111632

- C56080

by: IP09/19/2017

Appears to be well made. Price was right and as always the service from etrailer was second to none. I'm sure by the look of it that it will perform as intended. 434114

- C56080

by: shane d11/22/2016

very handy to have. we have a couple pickups that the plugs are to off to the side or hitches are to long or trailer plug is to short and this makes it easy. 319023

- C56080

by: Robert A.06/26/2017

7 way connection from my boat trailer to Toyota 4Runner was too short. This extension did the trick! 399123

- C56080

by: Michael P.04/15/2014

Product was what I needed for my trailer project. Fast shipping and great quality products. 125100

- C56080

by: Charles S11/30/2016

Very fast service, product exactly what was described, would definitely buy from again. 320975

- C56080

by: Patterson01/03/2014

I was very impressed with the quality of the product as well as the expedited delivery 111854

- C56080

by: J. R.07/08/2014

Product is just what I needed and arrived on time. 140152

- C56080

by: Chris Watson06/24/2014

High quality materials and workmanship. ..perfect! 137496

- C56080

by: Jim G10/03/2017

Quick shipping, item as advertised, Tha nks! 438761

- C56080

by: Richard B.04/01/2013

Great harness, easy to use. 73798

- C56080

by: Wes03/05/2017

Works as it should. 348783

- C56080

by: Lane p.07/07/2017

Nice well made 402826

- C56080

by: daniel lubkowski04/22/2014

Great product 126584

- C56080

by: CW01/20/2017

High Quality 333979


Ask the Experts about this Curt Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?

  • Recommended Wiring for Semi Tractor to Tow Gooseneck Trailer
  • The wiring on a semi is not normally the same as a standard RV or Gooseneck trailer. You will need to use a couple different harnesses to get what you are looking for. I recommend the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT which will clip onto your truck wiring to capture signal. Then you will need to hardwire a brake controller like # 90195 and use the 7-way brake controller kit # ETBC7 to make the wiring compatible...
    view full answer...

  • Trailer Wiring Extension to Allow Utility Trailer Plug to Reach Truck Bed Connector
  • We can definitely help you! If your trailer and truck connectors are RV-style 7-way blade types we offer extensions in various lengths. For example, if you need several feet of additional length we offer the Curt Universal 5th Wheel/Gooseneck 7-Way Extension # C56080 which is 7-feet long. If a shorter extension will suffice you might use the 28-inch TorkLift # TLW6028, 36-inch # TLW6036 or 48-inch # TLW6048. If either your truck or trailer use different connectors (the linked...
    view full answer...

  • Will Curt E16 5th Wheel Hitch and Universal Install Kit Fit a 1997 Dodge Ram 1500 Short Bed
  • Curt 5th wheel hitch and universal installation kit # C16116 will fit your 1997 Dodge Ram. But since you have a short bed I recommend the slider version, # C16616, so you will have more clearance when making turns while towing. If your truck has the factory 7-Way connector at the bumper you can add an in-bed harness # C56071, that will plug in line with the factory 7-Way. This allows you to have 2 functioning 7-Ways without the need of an extension. If you want to use an extension though...
    view full answer...

  • Wiring Between RV and Flat Towed Vehicle Pulls Out When Turning
  • If the distance is too far between the connectors on the motor home and vehicle then a straight cable would not help much unless it was a longer cable. You can try moving the location of the cable so there is enough slack to make turns without it pulling loose. Another option is to extend the 7-Way using something like # C56080. You probably would not need the full 7 feet of length this harness has but it would definitely be enough to prevent the cable from pulling out on turns. Currently,...
    view full answer...

  • What do I need to Install a 7-Way Connector in the Bed of a 2000 Ford F-350 Super Duty
  • What you will need for your 2000 Ford F-350 is a 4-pole hardwire kit # 18252, universal installation kit # ETBC7 and universal 5th wheel/gooseneck 7-way extension # C56080. Install the # ETBC7 (provides 7-way connector) and # 18252 (provides 4-way flat) at the rear of your truck. The Curt 5th wheel/gooseneck 7-way extension # C56080 will install in the location of your choice in the truck bed. I have provide a few links to help guide the installation.
    view full answer...

  • 5th Wheel/Gooseneck Trailer Wiring Harness for a 1997 Ford F-250 Heavy Duty
  • Gooseneck/5th Wheel Trailer wiring harness # 40167 fits 2002 - 2004 Ford F-250 and F-350 Super Dutys with factory 7-way connectors. It will not fit a 1997 Ford F-250 heavy duty. There are currently no in-line harnesses that will fit. But what you can use is # 20027 or # C56080. Either of these will plug into the existing 7-Way and the long cable allow you to put the 7-Way in the truck bed. These harness just do not plug in line at the backs of the 7-Way like the other harnesses.
    view full answer...

  • How to Add Gooseneck Wiring to 1997 Dodge Ram 1500 Without Factory Wiring Harness
  • If your 1997 Dodge Ram 1500 has no type of factory trailer wiring at all then you'll need first to install a 4-pole harness like # 118329. This is a simple plug-in harness that installs at your tail light assemblies with no cutting or splicing of wires. You'll then convert that to a 7-way blade type RV socket using our # ETBC7 trailer brake controller installation kit. This kit includes a 7-way that plugs in to the 4-pole. The extra circuits will be connected using the supplied wiring,...
    view full answer...

  • Does the Curt 7-way Extension part # C56080 Carry a Circuit that Could Charge a Trailer Battery
  • If you have a 7-way on your tow vehicle that has the 12 volt accessory circuit active and a 7-way on your trailer that has the 12 volt circuit run to the positive side of the battery on your trailer then yes, the Curt 7-way Extension part # C56080, when plugged in between your trailer and tow vehicle will put a maintenance charge on your trailer battery. If you are looking for something to charge a dead trailer battery you would need a battery charger that would plug into a wall outlet...
    view full answer...

  • Recommended 7-Way Trailer Connector Extension for a 2014 Ram 2500
  • What I recommend is the Curt universal extension # C56080. It will plug directly into your existing 7-way connector and provide you a length of 7 feet. If you only need a few more inches of play, the adapter # C57003 you referenced will work fine. I included the installation instructions for you too.
    view full answer...

  • Adding a 7-Way in the Bed of a 1999 GMC 2500
  • To add a 7-Way trailer connector to the bed of your 1999 GMC truck you have some options. First, if the truck came with a factory 7-Way then you can just use # C56080 which will plug into the 7-Way at the rear of the truck. If your truck does not have a 7-Way then you would first need to install one. To do this you can use # ETBC7. For this to install you would need to have a 4-Way flat trailer connector at the back of the truck. If you do not then you can install one, # 118315, and...
    view full answer...

  • 7-way Round to 7-Way flat Adapter Recommendation
  • For a 7-way round to 7-way flat adapter you would want the part # PK12-724. For a 7-way extension that would give you 7 feet of extension you would want the part # C56080. If by chance your tractor has separate taillight wiring, meaning that the turn signals and brake lights run on separate pins, you will need to add a converter, like the Tow Ready, # 119130. Just cut off the 4 way end and wire it into this adapter. I have attached a picture which illustrates this. In order to...
    view full answer...

  • Adding a Brake Controller to a 1995 Chevrolet 3500 to Tow a Gooseneck Trailer with Electric Brakes
  • First, your 1995 Chevy 3500 is going to need a 7-Way trailer connector if it doesn't have one already. To add a 7-Way you will first need to have a 4-Way flat connector if the truck does not already have one. Use # 118315 to add a 4-Way. Then to add a 7-Way use # ETBC7. This will provide all of the wiring needed to install a brake controller. I have included some links that will help explain the ETBC7 installation. Once the 7-Way is installed you can use an extension, # C56080, to...
    view full answer...

  • Best Way to Add Length to 5th Wheel Trailer 7-Way Wiring Harness in 2012 Ford F-250
  • In the long run you will be glad you have a long bed pickup since 5th wheel towing is much easier with the extra turning clearance you get from a long bed truck like your F-250. I have a suggestion that will not require you to remove the existing wiring harness, nor to have to drill another hole in the bed side. All you need is a 7-way extension cable like the 7-foot Curt # C56080. All you need to do is insert the trailer's male plug into the female socket and then connect the extension's...
    view full answer...

  • Availability of an RV Style 7-Way to 7-Way Extension
  • If you want to use # WG54006-043 then you just need the vehicle end, such as # PK12-707E, since it already has the trailer end on it. We have some ready-made 7-Way extensions that you can use such as # 20027 or # C56080 which are 7 feet long. We have a shorter option, # TLW6021, which is 21 inches long. And we have a 10 foot long model # TLW6510.
    view full answer...

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Info for this part was:

Photos by:
Theodore B
Written by:
Lindsey S
Expert Research:
Jameson C
Updated by:
Adele M
Installed by:
Cole B

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