bing tracking image
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Custom Fit
  4. Fifth Wheel and Gooseneck Wiring
  5. 7 Round - Blade
  6. 7 Feet Long
Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds - 7' Long

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

Item # C57008
Retail:$196.17
Our Price: $114.95
You Save: $81.22
Custom Fit Vehicle Wiring

Will this fit?

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

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
Mount this 7-way connector in your aluminum 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. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C57008 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds - 7' Long. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (155)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C57008

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

Mount this 7-way connector in your aluminum 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
    • 7' 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, 4 stainless steel bolts, and 4 rubber well nuts for installation
    • Rubber well nuts separate the included stainless steel bolts from your aluminum truck bed to help prevent galvanic corrosion


Specs:

  • Harness length: 7'
  • 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


57008 Curt Custom Vehicle-to-Trailer Wiring Harness Extension - 7 Foot

Replaces C56070-07

Installation Details C57008 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:


Customer Reviews

Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds - 7' Long - C57008

Average Customer Rating:  4.9 out of 5 stars   (155 Customer Reviews)

Mount this 7-way connector in your aluminum 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 F-150

Installed this in my 2021 F-150 long bed. Was able to cut a hole right by my onboard outlet in the bed of my truck. Simple plug and play install. On occasion the connection isn't the best, but I think it would be better if I used some dielectric grease on the connectors.

Mitch B.

12/14/2023

Over a year with this and everything is working very well

Etrailer Expert

Mike L.

12/14/2023

@MitchB Thanks for checking back in, we're glad to hear that!


by:

Only feedback I have is that one of the frame brackets where we had to press fit the bolt grommet was oversized and didn't retain the grommet. We worked around it to hold it in place until we could engage the bolt. Other than that we love the fit and finish and are very pleased.

Craig B.

12/21/2023

Wiring harness has worked great no complaints. Easy to install, no issues.



by:

Great product. Plug and play mostly. I would be willing to spend a few more bucks if they sold it with the hole saw bit and the grease as a package deal. The plug is very easy to install. It helps to lowered the spare tire down to make room to make the connection, then all you have to do is cut a hole in the inside of the box, route the cord and mouth the outlet.

Kyle

7/30/2023

Great, no problems. Used quite regularly.



by:

Great product and even better customer support. The install videos are awesome I'm



by:
2018 Ford F-250 Super Duty

Received the 7 way harness as promised. Used video that walked through the install and had no issues. Harness works as advertised. Great experience



by:

Great price, simple installation with easy to follow instructions! I highly recommend this product!!!



by:

PLUG AND PLAY install...only 1 hole needed to be cut for the install...everything else is plug in and go.



by:
2020 Ford F-250 Super Duty

Easy install, the etrailer videos were extremely helpful. Really the only thing I used the included instructions for was to get drill bit size information. Thanks etrailer for the fast shipping.



by:
Ford F-250 Super Duty

I ordered the Curt Spider Gooseneck Hitch and the Wire Harness for my 2020 f250. WOW is all I can say!!! It was delivered to my door less than 20 hours. The hitch is of great quality and I can not wait to put it to work. I will continue to do business with eTrailer.



by:

Works great!



by:

The quality of materials and the fact that this plugin has a 7ft cord makes it perfect for a short bed pickup,if you take a little time in the routing of the cable it looks factory



by:
2018 Ford F-150

Fit and finish are excellent and work as expected. I would be cautious with measuring for the hole in the bed, depending on what if any bedliner is installed. In my 2018 F150 the factory spray in bedliner was thinner than the measurement in the instructions. This resulted in the hole being off center by 1/8". This is not a deal breaker, just something to be aware of, and is the responsibility of the installer. I Regularly pull a 9800 pound fifth wheel camper and gooseneck dump box with no issues.



by:

Easy to install with very informative i nstructions



by:

Etrailer was great to work with and Curt products are always quality and fair priced



by:

Very simple install and seems to be great quality,



by:
2019 Ford F-250 Super Duty

Always fast shipping and your customer service team is awesome! Thank you!



by:

First, what I like. This system was easy to install. The cable length was perfect. The connector system to splice into the stock connectors was perfect. The directions accurately detailed the hole-saw size needed to drill in the truck bed. The umbilical from my 5th wheel seats securely. The problem I have is the mounting screws. The screws are steel while the 2020 F250 bed is aluminum, meaning there is the possibility of corrosion with dissimilar metals. The connectors design solution is rubber grommets to isolate the steel from aluminum. With only a few plug/unplug cycles, the grommets failed, the connector came loose. I had to remove the mounting system and replace with steel bolts, using silicone caulk to provide corrosion protection. Bottom line, connector mounting system doesn’t work.



by:

Very easy installation, works perfectly.



by:
2018 Ford F-250 Super Duty

This was a C57008 for a '18 F250 6' box. The item was delayed because of the new vehicle. But etrailer kept me well informed of the progress. The plug system was so convenient without having to splice the right wires and the 7' length was just long enough to locate the socket just ahead of the wheel well for my slide in camper. It also included a nifty isolation kit to avoid screwing directly to the aluminum bed.



by:

Excellent service! Called in my order and received my order in just a couple of days. The Curt 7 pole connector for al beds was easy to install and works perfectly for my 5th wheel. Highly recommend etrailer!!!



by:

Fast shipping and very easy to install



by:
2017 Ford F-250 Super Duty

Works great installed in about 30 mins on my 2017 f250



by:
2017 Ford F-250 Super Duty

Perfect ready to use,easy to install,thanks



by:
2019 Ford F-250 Super Duty

This harness is exactly what I needed for our new 5th wheel to get a plug close to the pin box but not lose the plug in the bumper. The quality is good and the install is simple. The only, very small, negative is the wire ties that are supplied with it are terrible, they all broke very easily. No problem, who doesn't have a supply of them already...



by:

etrailer does it again. One of my items was backordered and then it appeared to be further delayed. I called, spoke with Carol and told her that I needed the parts for the upcoming 3-day weekend. She told me that she would check with the warehouse and make sure they shipped that day. I received the parts unbelievably quickly and am installing them over the next few nights. I'll update the post to comment on the install and my impressions of the product but for now I'm completely blown away by etrailer's consistently outstanding customer service. Thanks Carol, thanks etrailer.


25
155
Show More Reviews

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

  • Will The In Bed 7-Way Fit On a 2023 Ford F-150 With In Bed Power Outlet?
    We currently have not had a Ford F-150 with the power outlet in the bed to test fit a bed mounted 7-Way # C57008. I see no reason you will not be able to still install the 7-way as there is a large gap which can be seen in the installation video which I have linked below showing the opening where the wiring is ran beside your bed. Be sure to check the wiring location before drilling an opening.
    view full answer...
  • Wire Color Functions of the Curt 5th Wheel/Gooseneck Custom Wiring Harness C57008
    For the Curt 7-way truck bed wiring kit part # C57008 that you referenced the wire colors by function are as follows: 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
    view full answer...
  • Truck Camper 7-Way Harness for 2018 Ford F-150
    We have exactly what you need! To easily hook up your truck camper I recommend adding theCurt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds - 7' Long # C570080. This harness will plug right in line with the factory 7-Way on your Ford F-150 to provide you with an additional 7-Way that you can mount in the truck bed. I have attached a sample installation video that you can also use for reference.
    view full answer...
  • Recommended 5th Wheel Wiring For 2020 Ford F-350 Super Duty
    Yes, I recommend the 5th Wheel/Gooseneck Wiring Harness for Aluminum Truck Beds # C57008 for the 2020 Ford F-350 Super Duty which will plug in line with the existing 7-Way plug on the truck and gives you an additional 7-Way plug in the bed of the truck for easy hookup.
    view full answer...
    Image 1 for
  • What Size Pilot Hole do I Need to Drill to Install the Curt In Bed Custom Wiring Harness
    When installing the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector part # C57008 you will drill a 7/64" hole at all four of the mounting holes. This is what is stated in the instructions and will be the best practice to follow. When we do them here at etrailer sometimes we do not drill the pilot holes and it works for us but keep in mind I personally have done at least 80 of them so we are pretty practiced at it. I have included a video for you to check out of my buddy...
    view full answer...
  • Recommended In Bed 7-Way Connector for a 2023 Ford F-150
    Yes, you can add a 7-way harness to the inside of your 2023 Ford F-150's truck bed. You will need the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds item # C57008. This custom fit harness puts a 7-way connector in the bed of your F-150 and allows you to keep the one on your bumper. It plugs into the factory wiring beneath your aluminum truck bed and has 7" of cable to allow you to place the connector wherever you want along the driver's side of your...
    view full answer...
  • Will Curt Fifth Wheel and Gooseneck Wiring Harness for Aluminum Truck Beds Fit 2017 Ford F-250
    Yes, I confirmed with Curt that the # C57008 fifth wheel and gooseneck wiring harness will fit the 2017 Ford F-250 and the F-350.
    view full answer...
  • What is the Correct Way to Wire a 7-Pin Connector on a 2020 Ford F-150
    I believe you're referring to the following three 7-Way connector types: - Traditional SAE - RV Standard - Heavy-Duty While these all seem similar, there are a few differences that I'll point out below. Long story short though, you want to follow the RV Standard diagram I've attached. The Traditional SAE and RV Standard wiring is actually the same pinout, the wiring colors are just different is all. Even with that being the case we always recommend making your connections per function...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • 7-Way In-Bed Socket Recommendation for 2023 Jeep Gladiator
    We do have a wiring kit that tees in to the back of a 7-Way that has a US CAR connection on it so if that's what your 2023 Jeep Gladiator is equipped with then I recommend using the Curt 5th Wheel/Gooseneck Custom Wiring Harness # C57008. This won't likely match up with the pop out panel you have but the installation is pretty straightforward still. I've attached an installation video of this kit on a 2019 F-150 that you can use as a reference.
    view full answer...
  • Determining 5TH Wheel Towing Capability For a 2017 Ford F-250 With 6.2L Gas Engine
    According to the Ford 2017 Towing guide your 2017 Ford F-250 with a 6.2L gas engine can tow a 5th wheel somewhere between 12,200 and 15,700lbs depending on the cab configuration, bed length, drive type and rear end gear ratio. If you can provide me with this additional information on your truck I can help you determine if it is safe to tow your 11,280lb 5th wheel.
    view full answer...
  • 5th Wheel/Gooseneck 7-Way Kit with 10 Foot Harness
    For a 7-way kit that is 10 feet long like you are wanting we have the part # 41157 which would work well on your 2019 Ford F-350 to put an additional 7-way up in your truck bed.
    view full answer...
  • Install Rail Kit For Installing Draw-Tite 9465 Hide-A-Goose Gooseneck Hitch on 2019 Ford F-150
    You're absolutely correct. To install the Draw-Tite 9465 Hide-A-Goose center section on your 2019 Ford F150, you would indeed use the # 4491 Gooseneck Hitch Install Kit. If you'd like to install a 7-way trailer connector in the truck bed so you don't have to run the trailer connector up over the tailgate, you can install one using part # C57008. You can see an install video for this trailer connector by using the provided link.
    view full answer...
  • Difference Between Two Fifth Wheel Wiring Harnesses for 2015 Ford F-150
    Both Curt Fifth Wheel Wiring Harnesses # C57010 and # C57008 install in the same way and will work in your 2015 Ford F-150. The reason for the different lengths is to give users the more options on where they would like to install the 7-way.
    view full answer...
  • Curt Q25 5th Wheel Hitch Head Compatibility with Ford Prep Package Legs
    The Curt OEM 5th-Wheel Hitch Legs for Ford Super Duty Towing Prep Package - 24,000 lbs # C16017 will work with the Q25 hitch head, but it will limit your capacity to 24,000 lbs. You may also want to consider the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds - 7' Long # C57008. This will connect to your factory wiring and give you a second 7-way wiring connection in the bed of your truck for easy connection access.
    view full answer...
  • Will 5th Wheel Trailer Come Out of B&W Companion?
    The B&W Companion fifth wheel hitch # BWRVK3305 offers interlocking jaws that surround the kingpin at 360 degrees, so the trailer will not come out of the hitch. When you hook up to your fifth wheel trailer the king pin on your trailer slides into the jaws on your hitch and there is a locking pin that locks that king pin into the hitch. If the trailer you're towing is under 25,000 pounds fully loaded, this hitch will have no problem with your trailer. There will always be some noise coming...
    view full answer...
  • In-Bed Gooseneck/Fifth Wheel Trailer Wiring Harness for 2021 Ford F-150
    For your 2021 Ford F-150, I'd recommend the Curt # C57008 which includes the hardware for the Ford aluminum bed. The harness plugs inline at the connection where the factory harness plugs into the 7-way on the rear bumper as shown in the linked installation video. The # 54701-009 harness you'd looked at is a fit for Super Duty models up through 2020, and isn't a confirmed fit for your truck.
    view full answer...
  • Will Demco Hijacker Fifth Wheel Hitch Fit 2017 Ford F-250 Super Duty With 6-3/4 Foot Bed?
    Yes, the Demco Hijacker UMS Double Pivot # DM8550033 will fit in the factory puck system of your 2017 Ford F-250 Super Duty despite the fact you have a 6-3/4' bed and not an 8' bed. This is not in our fit guide for a short bed because normally a sliding fifth wheel hitch is required in a truck with a bed that is under 8'. With your Lippert Turning Point pin box you will not need a sliding hitch so the Hijacker # DM8550033 is going to be a great option. I also recommend Wiring Harness #...
    view full answer...
  • How to Position B&W Companion 5th Wheel Hitch Pivot Arms to Install on 2017 Ford F-350 Long Bed
    Since you have an 8 foot bed, either way you set up your B&W # BWRVK3305 Companion pivot arms could be attached in either orientation. I'd recommend the forward position, which will distribute a bit more weight to the front truck axle. This helps make the truck's handling more stable. If you don't already have a 7-way trailer connector installed in the bed, you can install one using # C57008. I've linked you to a video showing the installation of the wiring harness.
    view full answer...
  • 5th Wheel Compatibility With A 2022 Ford F-350 with Factory Pucks
    Yes, the B&W Companion # BWRVK3370 you reference will fit your 2022 Ford F-350 with factory pucks. This is a sliding 5th wheel hitch that will simply drop, and lock into your factory pucks for an easy, quick, installation. I also recommend getting a 7 way relocation kit # C57008, to give you the ability to plug in your 5th wheel much quicker and easier. What this kit will do is tee off your original factory 7 way, and allow you to add a 7 way to the bed of your truck while still retaining...
    view full answer...
  • Does B&W Turnoverball Gooseneck Hitch From 2017 Ford F-350 8' Bed Fit A 2021 Ford F-250 6-3/4' Bed?
    The B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit - 30,000 lbs # BWGNRK1116 you had installed in your 2017 Ford F-350 4WD with the 8' Bed will fit perfectly in your new 2021 Ford F-250 4WD with the 6-3/4' bed. The # BWGNRK1116 came with the inner brackets, but since your older truck has them factory installed you didn't need them. If you still have them laying around you can use them, or if they are long gone you can reach out to B&W to order the replacements. To...
    view full answer...
  • Fit of Demco DM8550045 Recon 5th wheel Hitch w/ FactoryTow/Prep Package on 2020 Ford F350
    If your 2020 Ford F-350 is a long bed model, or if your 5th wheel has the dished-in front corners to allow turning clearance so the front of the fifth wheel doesn't collide with the rear of the truck cab, then yes, the Demco # DM8550045 Recon would be a good choice that's compatible with the Ford Factory Goosneck ball that fits in the factory tow/prep package. This hitch isn't compatible with rotating pin boxes such as the Reese Sidewinder/Revolution or the Lippert Turning Point. If...
    view full answer...
  • Recommended In-Bed 7-Way for a 2020 Ford F-350
    I would be happy to help you. I recommend the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 10' Long item # C57008 for your 2020 Ford F-350. This is designed for aluminum beds like your model truck has. 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 to your 5th wheel trailer easier and more convenient.
    view full answer...
  • Fitment Of The B&W Companion 20K Hitch For A 2022 Ford F-350 Short Bed With Factory Pucks
    Yes, the B&W Companion 5th Wheel Hitch # BWRVK3370 does fit your 2022 Ford F-350 short bed with factory pucks. To make plugging in and unplugging faster and easier I recommend the # C57008. This wiring harness will plug directly into your factory 7 way and allow you to reroute your plug to the bed of your truck for ease of access. Doing this does not get rid of the functionality of your factory 7 way at the rear of your truck.
    view full answer...
  • Recommended 5th Wheel Rail Kit for a 2019 Ford F-150
    Yes, you can. The Curt Custom Fifth Wheel Installation Kit for Ford item # C93WR does fit your 2019 Ford F-150 and is compatible with Reese 5th Wheel Hitches. 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 item # C57008. 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 to your 5th...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Chelsea B
Written by:
Chelsea B
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
Employee Jonathan Y
Video by:
Jonathan Y
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Clayton O
Test Fit:
Clayton O
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.