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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 7 Round - Blade
  4. Fifth Wheel and Gooseneck Wiring
  5. Vehicle End Connector
  6. Plug-In
Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds - 10' Long
CURT

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

Part Number: C57010
In Stock
$131.95
Retail:$164.95
You Save: $33.00
Custom Fit Vehicle Wiring

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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 C57010 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 - 10' Long. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (62)
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CURT Custom Fit Vehicle Wiring - C57010

Highlights

  • Custom Fit for Aluminum Beds: Perfectly fits 5th wheel and gooseneck trailers.
  • Retains Factory 7-Pole Connector: Allows simultaneous use at truck bed and bumper.
  • 10 Feet Long Harness: Reaches from the bumper to the bed effortlessly.
  • Prevents Galvanic Corrosion: Includes rubber well nuts and stainless steel bolts.
  • Simple Plug and Play Installation: No cutting or splicing needed, preserves factory wiring.
  • Comprehensive Kit: Comes with zip-ties and all necessary installation hardware.

Features to know about

Effortless Towing Connections: 7-Way Connector in Truck Bed

Hooking up your 5th-wheel or gooseneck trailer has never been easier. With a 7-way, blade-style connector conveniently mounted in your truck bed, you can quickly connect your trailer without the hassle of reaching underneath your vehicle. This seamless setup saves you time and energy, turning a potentially stressful task into a piece of cake. Ideal for Ford trucks with aluminum beds, this addition makes your towing setup neat and organized.

Keep Your Factory Connections: No Cutting or Splicing Required

Say goodbye to the headaches of altering your truck’s electrical system. The Curt Custom Wiring Harness plugs directly into the factory wiring of your vehicle, retaining the original 7-pole trailer connector at the rear of your truck. This ensures that you maintain all the existing functionalities and eliminates the need for messy, time-consuming wiring modifications, preserving your vehicle for future resale value.

Combat Corrosion in Aluminum Beds: Rubber Well Nuts Included

Worried about galvanic corrosion when installing accessories in your aluminum truck bed? The provided rubber well nuts separate the included stainless steel bolts from your aluminum bed, helping to prevent corrosive damage. This feature ensures long-term durability and peace of mind, so your investment remains protected against the elements.

Reach Every Corner: 10 Feet Long Insulated Wiring Harness

With 10 feet of insulated wiring harness, this setup reaches from your rear bumper all the way to the truck bed, accommodating even longer truck models. This ample length provides flexibility in mounting locations, whether you choose the sidewall, tailgate post, or wheel well of your truck bed. It’s designed to give you the length you need for a stress-free install, ensuring a perfect fit every time.

Comprehensive Installation Kit: Everything You Need in One Package

Installing your wiring harness shouldn’t require a trip to the hardware store. That's why this kit includes everything you need for installation: zip-ties, four stainless steel bolts, and four rubber well nuts. With these components on hand, mounting your connection point becomes a straightforward project you can complete at your convenience.

Specs

Wiring Specifications

  • 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

Warranty

  • Warranty: Limited 1-year warranty

57010 CURT Custom Vehicle-to-Trailer Wiring Harness Extension - 10 Foot

Replaces C56000-07

Installation Details C57010 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

62 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:

Curt wiring harness installed without a hitch (pun intended), and works perfectly. Well worth paying extra for quality parts!



by:

ETrailer customer service is top notch. I won’t hesitate to buy anything from them because of this.



by:
2024 Ford F-350 Super Duty

Very good product,easy install. And as always Great ETrailer Service.



by:

the right part for the job, quick delivery, no issues

Tim profile picture

Tim

2/9/2025

No issues with harness. Installer could have used better screws because the bed is aluminum.



by:

It works perfectly for plugging in my slide in camper and still having the trailer hitch one free for towing the boat.



by:

Plug and play was perfect. Has not given issues over the first year of service.



by:
2024 Ford F-350 Super Duty

Delivery was fast. Part was perfect - excellent job.



by:

I added this to the left front of my bed for a slide in truck camper. It connected into the factory 7 pole connector in the rear of the bed. Fits well appears to be well made and installation was easy after getting the courage to cut a 2 1/8 inch hole in my bed.



by:

reception socket seems a little loose, however I haven't had any issues thus far. easy installation on '22 f250



by:
2024 Ford F-350 Super Duty

Day late in the delivery



by:
2021 Ford F-350 Super Duty

Installation was straightforward and product has been working well for a year.



by:

Perfect fit! It 10 minutes to install!



by:

Easy install works great for plugging in truck camper.



by:
2020 Ford F-250 Super Duty

Easy to install took my time and probably measured more than I had to I was nervous cutting a hole in a brand new truck!



by:

My order was processed and delivered within 3 days as promised. My boxes were intact and everything was in them and ready for installation. Thanks etrailer.com for delivering as advertised.



by:
Ford

Excellent product with clear instructions. Fit my 2019 Ford FX4 with a towing package like a glove. Be sure to follow instructions for aluminum beds and interior sidewalls.
Install time approximately 1 hr.



by:

Easy plug and play. Drilled the hole in the bed with a hole saw - easy through the aluminum.



by:

After several weeks waiting for etrailer to send some missing parts. I contacted Reese company and had the missing parts in 4 days



by:

Perfect fit. Plugged right into factory wiring harness



by:

Product was shipped in a timely manner and all part were present. I should have bought a little shorter harness, I had a lot of extra wire.



by:
2024 Ford F-250 Super Duty

Did not come with all parts like round center ball and never received 2nd package

Brooke M. profile picture
Etrailer Expert

Brooke M.

9/18/2024

Im really sorry to hear that, Renee. Im going to make sure the missing part is shipped to you. Be on the lookout for an email!



by:
2022 Ford F-350 Super Duty

etrailer is the way to go. Fast delivery, great customer service and the best parts.



by:

Thank you!



by:
2023 Ford F-350 Super Duty

Extremely easy to install Less than 30 min including rounding up tools



by:
2016 Ford F-150

My order was supposed to be here yesterday and has bouncing back and forth between 2 states clear on the other side of the country! And I haven't found a place to report the issue. I'll change my review if it ever shows up at my door

Jenny N. profile picture
Etrailer Expert

Jenny N.

1/11/2024

Oh my goodness! I will have our Customer Service team reach out. We will make sure that you receive it.


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

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  • Does Hitch Ball Come With Curt Custom Underbed OEM-Style Gooseneck For Ford F-250/F-350 Super Duty
    It's not a silly question at all, and yes, the 2-5/16" gooseneck hitch ball does come with the Curt OEM gooseneck that fits the 2023 Ford F-250 & F-350 Super Duty: - Curt Custom Underbed OEM-Style Gooseneck Trailer Hitch # C59VV If you also need gooseneck wiring for your truck the correct fit is the 5th Wheel/Gooseneck Wiring Harness # C57010.
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  • How Long Does it Take to Install B&W Turnoverball Gooseneck Hitch on 2023 Ford F-250, F-350 or F-450
    This can vary greatly depending on the individual and their comfort level or experience with various tools but an estimate is somewhere in the 3 hour mark, give or take. The GRNK1123 does fit a 2023 Ford F-250, F-350, or F450 Super Duty, and our part number for that is the following: - B&W Turnoverball Underbed Gooseneck Trailer Hitch # BW73FR The only other thing I wanted to add is that if you need gooseneck wiring for your truck the correct part is the Curt 5th Wheel/Gooseneck Custom...
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  • Recommended In Bed 7-Way Connector for a 2023 Ford F-250
    Yes, you can. The Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C57010 was specifically designed for Ford trucks with the aluminum bed. 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 or gooseneck trailer easier and more convenient. I have linked an installation video below so you can see how to get this wiring harness set up.
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  • Recommended Aftermarket Puck System for a 2017 Ford F-250
    Yes, it will! The Reese Under-Bed Gooseneck Trailer Hitch item # RP39FR is the same pattern as the Ford factory puck system. This under-bed system is custom fit for your 2017 Ford F-250. It will allow you to mount the B&W Companion 5th Wheel Hitch item # BWRVK3300. This set up will work with a rotating pin box. I have linked a couple of installation videos below to help you get these parts set up. To make towing with a 5th wheel easier I recommend adding the Curt 5th Wheel/Gooseneck...
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  • What is the Best Gooseneck Hitch for a 2023 Ford F-250?
    The best gooseneck hitch for a 2023 Ford F-250 is the B&W Turnoverball Underbed Gooseneck Hitch item # BW73FR. It fits both the 6-3/4' and 8' bed lengths and the diesel models. This system includes custom fit brackets that bolt into existing holes in your F-250's frame. The only drilling you will need to do is in the bed when you add the holes for the receiver and the safety chains. This underbed system allows you to store the 2-5/16" hitch ball upside down and inside your bed when you...
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  • Recommended 5th Wheel Rails for a 2023 Ford F-250
    To add a set of 5th wheel rails to your 2023 Ford F-250, I recommend the B&W Custom Installation Kit w/ Base Rails item # BWRVK2402. These custom fit brackets mount to existing holes in your Ford's frame. They fit both the 6-3/4' and 8' bed lengths. To make towing with a 5th wheel easier I also recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C57010. This harness puts a 7-way connector in the bed of your truck and allows you to keep the one on your bumper. This...
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  • Recommended Gooseneck Hitch for a 2023 Ford F-250
    Yes, it does! The B&W Turnoverball Underbed Gooseneck Hitch item # BW73FR has been confirmed to fit all models of the 2023 Ford F-250 so long as they do not have the towing prep package. This hitch is custom fit and includes all hardware necessary to complete installation on your truck. It has a massive 30,000 lbs capacity. This underbed system allows you to store the 2-5/16" hitch ball upside down and inside your bed when you are not using it. This also gives you the requested full access...
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  • What is the Best Gooseneck Hitch for a 2023 Ford F-350?
    The best gooseneck hitch for a 2023 Ford F-350 is the B&W Turnoverball Underbed Gooseneck Hitch item # BW73FR. It fits both the 6-3/4' and 8' bed lengths and the diesel models. This system includes custom fit brackets that bolt into existing holes in your F-350's frame. The only drilling you will need to do is in the bed when you add the holes for the receiver and the safety chains. This underbed system allows you to store the 2-5/16" hitch ball upside down and inside your bed when you...
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  • Recommended B&W Turnover Ball System for a 2023 Ford F-350 w/out the Prep Package
    The Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches item # BW83FR and item # BW73FR are identical kits that both fit the 2023 Ford F-350 with either the 6-3/4' or 8' bed lengths. It looks like item # BW83FR was the original inventory number but they both have the same components, installation method, and capacities. I have previously checked with B&W on this Turnoverball system, since you do not have the prep package you will want the B&W Turnoverball Underbed...
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  • Recommended In-bed 7-Way Wiring Harness for a 2024 Ford F-350
    Yes, it is available as an aftermarket part. To install an in-bed 7-way on your 2024 Ford F-350, you will need the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds item # C57010. 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 or gooseneck trailer easier and more convenient. I have linked an installation video below to help you get it set up.
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  • Recommended B&W Turnover Ball Hitch for a 2023 Ford F-350
    I checked with B&W and can confirm that the B&W Turnoverball Underbed Gooseneck Trailer Hitch item # BW73FR does fit the 2023 Ford F-350. It fits both the 6-3/4' and 8' bed length trucks without the OEM prep package. 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 # C57010. 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...
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  • Recommended In Bed 7-Way for a 2024 Ford F-250
    Yes, you can and it'll allow you to keep the one on your bumper. I recommend the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector item # C57010. This harness puts a 7-way connector in the bed of your 2024 Ford F-250 and makes hooking up to your gooseneck or 5th wheel trailer easier and more convenient. I have attached a picture below along with an installation video to help you get this 7-way harness set up and show you what it looks like once installed.
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    Image 1 for
  • How Much Does the Reese Elite Series for a 2021 Ford F-250 Weigh?
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  • Recommended In Bed 7-Way Connector for a 2023 Ford F-350
    To add an in bed 7-way connector to your F-350 you will want the Curt 5th Wheel/Gooseneck Custom Wiring Harness item # C57010. I really like this harness because it 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 gooseneck or 5th wheel trailer easier and more convenient. What sets this wiring harness apart from the others is that this kit includes rubber well nuts that separate the included stainless steel bolts...
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    Image 1 for
  • How To Put a 7-Way Plug In The Bed And On The Back Of A 2023 Ford F-350 Cab And Chassis
    I can definitely help and get you set up. If your truck does not have any factory trailer wiring we will basically have to do this from the ground up. First you will install a 4 pin connector part # C58044. This will simply splice in using the included quick splice connectors. Next you will need to install the universal 7 way install kit # ETBC7. This kit includes all of the components you will need to upgrade the existing 4 pin connector to a 7 way. You will also have everything needed...
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  • Recommended Underbed Gooseneck Hitch for a 2023 Ford F-250
    Congrats on the new truck! To add a gooseneck hitch to your 2023 Ford F-250, I recommend the Curt Custom Underbed OEM-Style Gooseneck Trailer Hitch item # C60700. This system is custom fit and installs in predrilled holes. It fits both the 6-3/4' and 8' bed lengths. The Curt Underbed Gooseneck Trailer Hitch item # C60700 is made in the USA and has a 30,000 lbs towing capacity. A 2-5/16" gooseneck ball is included. I recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness...
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  • Recommended After-Market Puck System for a 2024 Ford F-250
    No, it does not Tim but I have one that does. Instead you will want the Under-Bed Rail and Installation Kit for Reese Elite Series 5th Wheel Trailer Hitches item # RP67KR. This is an identical set up to not only the one you were looking at but also the factory puck system that comes with the Ford trucks. The Reese Under-Bed Gooseneck Trailer Hitch item # RP39FR, you were looking at, only fits the 2017 - 2022 Ford F-250, 350, and 450. To make towing with a 5th wheel easier, I recommend...
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  • Recommended In Bed 7-Way Connector for 5th Wheel and Gooseneck Trailers on a 2023 Ford F-350
    To make towing with a 5th wheel trailer easier, I recommend adding the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector for Aluminum Beds item # C57010 to your 2023 Ford F-350. 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 gooseneck trailer easier and more convenient. This kit includes rubber well nuts that separate the included stainless steel bolts from your aluminum truck bed...
    view full answer...
    Image 1 for
  • Custom 5th Wheel Rail Kit for a 2018 Ford F-250 Super Duty
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  • Is There a Difference Between RP87FR and RP39FR for 2020 Ford F-350 Super Duty
    The two parts you mentioned are both the same Reese Elite Series Under-Bed Rail and Installation Kit that fit your 2020 Ford F-350 Super Duty, giving you the ability to pull a gooseneck trailer with a gooseneck ball or use a 5th wheel hitch in the puck system. The only difference is that we have one listed as a 5th wheel install kit and the other as a gooseneck hitch, but the # RP39FR and RP87FR are the exact same, the Reese Elite Series Underbed Kit. So you can just get the less expensive...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
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Employee Jameson C
Expert Research:
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Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
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