1. Custom Fit Vehicle Wiring
  2. Mighty Cord
  3. Universal Fit
  4. Fifth Wheel and Gooseneck Wiring
  5. 7 Blade
  6. 7 Feet Long
Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long

Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long

Item # A10-7007
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Custom Fit Vehicle Wiring

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A10-7007 - 7 Feet Long Mighty Cord Custom Fit Vehicle Wiring
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Mount this 7-way, RV-style connector in your truck bed to simplify hookup of your 5th-wheel or gooseneck trailer. Harness plugs into existing wiring and retains use of factory 7-pole at the bumper. Call 800-298-8924 to order Mighty Cord custom fit vehicle wiring part number A10-7007 or order online at etrailer.com. Free expert support on all Mighty Cord products. Guaranteed Lowest Price and Fastest Shipping for Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (20)
  • Q & A (29)
  • Videos (3)
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Mighty Cord Custom Fit Vehicle Wiring - A10-7007

  • Universal Fit
  • Fifth Wheel and Gooseneck Wiring
  • Mighty Cord
  • 7 Blade
  • 7 Feet Long

Mount this 7-way, RV-style connector in your truck bed to simplify hookup of your 5th-wheel or gooseneck trailer. Harness plugs into existing wiring and retains use of factory 7-pole at the bumper.


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
  • Plugs into factory wiring - no cutting or splicing
    • Requires that your vehicle have factory tow package
    • Retains use of factory 7-pole connector at the rear of your vehicle (if present)
  • 7' Long, insulated wiring harness reaches from rear bumper to truck bed
    • Molded cable protects wiring from water and debris
  • Spring-loaded dust cover protects connector from the elements


Specs:

  • Harness length: 7'
  • 1-Year warranty


A10-7007 Mighty Cord Universal 5th Wheel/Gooseneck Wiring Harness w/ 7-Way Connector - 7' Long



This Product Fits The Following Vehicles



California residents: click here


Video of Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long

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




Video Transcript for Mighty Cord 5th Wheel and Gooseneck Wiring Harness Installation - 2016 Chevrolet Silverado 2500

Today in our 2016 Chevrolet Silverado 2500, we're gonna be installing Mighty Cord fifth wheel/gooseneck trailer wiring harness with seven pole connector. You can get this in a seven foot or 10 foot length. This wiring harness is gonna take your factory seven pole connector that's at the back of your vehicle and reposition it up here, while maintaining the one that's still at the back. What's nice about this is if you have a trailer you haul out of your hitch, you can use the one at the back, but when you hook up your fifth wheel, you've now got easy access to plug your fifth wheel in with the one that's located in your truck bed.The connector itself has a spring loaded lid, make sure it stays shut when not in use to keep out any moisture, ensuring a long lasting connection. On the inside when we open the lid, there's a rubber seal on here to help keep that moisture out even further and our seven pole connector. It comes with all the hardware you need to get it installed, let's show you that now.We'll begin our installation by determining where we want to put our seven way connector.

We're gonna be putting ours in the back where our bed juts out here. So we want to find about the right height that we want it. We're gonna keep it kind of low, we're gonna put it about here. So I like to mark it, so I know where I'm gonna be putting it. And we're just using a paint stick here to make the marks.

This will just give us a general idea of where it's gonna be. We'll now drill our pilot hole in the center with a quarter inch drill bit. Then we're gonna use a two and one eighth inch hole saw. It tells you to use a two inch, but that extra eighth inch really makes it easier to get your wiring in. And you won't notice the extra eighth inch because it'll be covered up with your connector here.If you've got spray in liner like this, I recommend starting with your hole saw going backwards, this will clean off that paint and everything to get down to the metal surface.If you marked it out like I did, then you're gonna wanna clean it off now and get that paint stick off of there.

You can use some soapy water and a rag to get it off. We'll take some clear enamel to spray the hole we just cut. And this'll just help prevent against any rust and corrosion in the future. Now I'm gonna take my wiring, we're gonna take the end that just has the single connector, we're gonna feed it up from the bottom towards our hole. We'll now plug in our seven pole end to the connector.

We can now put our . We'll line it up so it's even and insert our self tapping screws. It doesn't really matter on your first screw if it's not perfectly level, you can level it when you put your second one in. Now I'm gonna adjust that 'til it's level, and insert the other screw. And the rest will go in just the same.We're using a quarter inch socket to tighten all these down. We can now clean up all the metal shavings and mess we made. We'll just vacuum that up. We'll now need to disconnect our electrical connector on our existing seven pole connector. There's a locking tab here that we're gonna need to pry out with our screwdriver. Once you got that out of the way you can press in on the release tab and pull your connector off. We'll now route our wiring up above the frame and over towards our other connector. We can now take dielectric grease, we're gonna squirt it on our connectors. This'll just help keep out any moisture to ensure a long lasting connection and prevent corrosion. We'll take our factory connector that we disconnected from our seven pole connector, we're gonna plug that into the male end of our new harness. You can, if you want, you can put the locking tab back on as well that we had removed. That simply pushes back down on there. We'll now take our other end here, and this is gonna plug back into our seven pole connector.All that's left now is to take your excess wiring, coil it up and zip tie it with the ones included in the kit. Now we'll test it out and make sure everything's working properly. To test it, you'll just want to plug in your fifth wheel into your connector here. Or if you have a tester, you can plug that in. We're gonna be using our tester. And now we'll operate all of our lights and make sure it's working properly. You'll want to make sure you have your left turn signal, right turn signal, tail lamps and brake lamps. With everything working properly, we're ready to hit the road. And that completes our installation of Mighty Cord fifth wheel/gooseneck trailer wiring harness with seven pole connector on our 2016 Chevrolet Silverado 2500.


Customer Reviews

Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long - A10-7007

Average Customer Rating:  5.0 out of 5 stars   (20 Customer Reviews)

Mount this 7-way, RV-style connector in your truck bed to simplify hookup of your 5th-wheel or gooseneck trailer. Harness plugs into existing wiring and retains use of factory 7-pole at the bumper.

- A10-7007
by:

Excellent kit. Easy plug and play. Came with tie wraps and sheet metal screws. Only thing it didn’t come with is the dielectric grease so I suppose if it were necessary they would have included it. Installed on the right side wall of 2018 Nissan Titan XD. Truck has puck system for gooseneck but Nissan didn’t install this in wall until the 2019 trucks which is rather dumb since 2016 with this model and ending with the diesel 2019. 719780



- A10-7007
by:

as advertised 800226



- A10-7007
by:

Exactly as described, easy to install in the bed of my F350, my 5er can now plug in the bed instead of at the factory 7 pin at the bumper. Excellent product. 773172



- A10-7007
by:

Working great 769682



- A10-7007
by:
2011 Chevrolet Silverado

Fast and easy install. The product fit great. 739322



- A10-7007
by:

Super easy to install. Connected in seconds and works great. 724983



- A10-7007
by:

The harness was delivered in great shape and the installation was straight forward. With all hardware within the kit, I didn't have to search in my garage for anything to complete the install. It is as advertised as a plug and play and works as advertised. 709513



- A10-7007
by:

As advertised. Easy install 654959



- A10-7007
by:
2009 Ford F-250 and F-350 Super Duty

easy to install, 629317



- A10-7007
by:

Great product! Good thick wiring covered in convoluted wiring wrap. Easy to install, took longer to brainstorm an area to mount and drill a hole in my new pickup than to actually install the product. Connectors are solid with a easy snap into place design identical to factory pigtails. 609398



- A10-7007
by:

Thank you for the speedy shipment. I ordered it late Saturday evening and received it Monday am . When I need more for my camper you will surely get another order. 608655



- A10-7007
by:
2014 Ram 2500

Once the location of the hole was figured out it is plug and play very easy 605592



- A10-7007
by:

Easy to install and fit is good !! 588544



- A10-7007
by:

Etrailer.com has everything you need for trailer towing. Products are 1st class and perform. I will be buying all my trailer and towing products here in the future. Shipping is also very fast. 577262



- A10-7007
by:
2012 Ram 3500

Was very easy to install and was well made. etrailer is the only place I will go when it comes to buying anything for my cabover camper 576381



- A10-7007
by:
2012 Ford F-250 and F-350 Super Duty

Super easy install! 547227


Comments
No issues, flawless fit and performance!
James B - 07/28/2019

58344

- A10-7007
by:
2015 Ford F-250 Super Duty

Very easy to install, works just like it’s supposed too, I would purchase again. 509624



- A10-7007
by:
2015 Dodge Ram Pickup

Ordered for my 2015 Ram 3500. Quick shipping. Very easy to understand instructions. Simple plug and play install. 449297



- A10-7007
by:
2016 Ford F-350 Super Duty

Excellent product, easy to install. Everything included 445935



- A10-7007
by:
2005 Chevrolet Silverado

I ordered the 7 way wiring harness from etrailer.com and the product was just what I needed for my truck the factory end hook right into the socket in a short time I was all done with the wiring. 438784


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Ask the Experts about this Mighty Cord Custom Fit Vehicle Wiring

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    We don't have a 7-way splitter like the photo you sent. We instead for applications just like yours recommend using the Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long # A10-7007 or the 10 foot long # A10-7010. This will allow you have the connection at your bumper as well as a connection in the bed of your truck wherever you choose for a simple connection to your in bed camper. There is no problem with charging your battery for either or both of these...
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  • Troubleshooting Error Message Week After 5th Wheel/Gooseneck Wiring Kit Install
    It's not common at all to see the type of error message you received after installing the # A10-7007. The install is usually very solid and rarely is there an issue. Since it happened a week later you might check the condition of the wiring and the connectors to make sure everything is still plugged in like it should be and no highway debris damaged the wiring. Also check the original connector for any corrosion on the pins of the connectors as that is a very common problem.
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  • Troubleshooting Factory In-Bed 7-Way Gooseneck and 5th Wheel Trailer Connection on 2017 Ram 3500
    The in bed wiring harness on your OEM 2017 Ram 3500 connects to the same circuit as your rear bumper 7-way. I recommend removing the T-connector from behind your bumper and inspecting the pins for anything bent. The use some dielectric grease like # 11755 to keep moisture and debris out and reconnect it. Do the same behind the plug in the bed and then test for function. If you don't have the 12V power at that point, then you will want to trace the wire to find the short or replace the...
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  • Fifth Wheel Hitch Weight Compared to Truck Payload Capacity for Safely Towing with 2019 Ram 1500
    The 2018 Forest River Wildcat 28sgx will not be an issue for you to tow. The payload of your truck is slightly different than the hitch weight of your 5th wheel trailer. The reason for the difference is that the payload is based on the bed itself and the strength distributed over the frame whereas the 5th wheel base rails or factory pucks are directly bolted to the frame and have a much higher weight capacity because they aren't simply dispersed over the sheet metal and are directly mounted...
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  • Part Needed to Add Second 7-Way Trailer Socket to 2009 Chevy Silverado
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  • Curt 5th Wheel Rail Custom Bracket Installation on a 2005 Ford F-350
    You are correct. There are 4 bolts that only get attached to the bed itself when using the Curt Custom Fifth Wheel Bracket Kit # C16448 and rails # C16104 (gloss black) or # C16204 (carbide/matte black). I've attached a video of this installation to assist. You may also want to consider adding a second 7-way like the Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long # A10-7007 which will give you a clean look and easy connection access when towing.
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    The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector # C55242 will allow you to use the Mighty Cord 5th Wheel/Gooseneck Wiring Harness w/ 7-Pole Connector - 7' Long # A10-7007 to give you the connection at the bumper and another in the bed of your Ford truck. They will work together well and can be used independently or at the same time.
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  • Parts Needed to Install a 5th Wheel Hitch on a 2008 Chevy Silverado 1500 with the 5-1/2 Foot Bed
    The only Chevrolet Silverado that came with a 5-1/2' bed in 2008 was the 1500 model. If you have a 2008 Chevrolet Silverado 1500 with the 5-1/2' bed then I do have a custom kit with above bed base rails for you but the Curt Custom Fifth Wheel Installation Kit part # C16418-204 will not work. Instead, I recommend using the Reese Quick-Install Custom Installation Kit part # RP50064-58. This kit is a direct bolt-on fit for the above truck's frame rails and will work with any brand of 5th wheel...
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  • How to Tow a 5th Wheel Trailer Using a 2013 Ford F-150 with 5-1/2 Foot Bed
    In order to tow a 5th wheel trailer with your 2013 Ford F-150 that has a 5-1/2' bed you are going to need to use a fixed 5th wheel hitch and a rotating pin box. The reason for this is because the amount of turning clearance you have with a 5-1/2' bed is severely limited so you will need to extend the connection point back away from the cab in order to prevent the loft of the trailer from coming in contact. For a fixed 5th wheel hitch, I recommend the Reese 5th Wheel Trailer Hitch part...
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  • Help Finding Square Connector to Install Curt 5th Wheel/Gooseneck Custom Wiring Harness on 2008 Ram
    The square connectors you are looking for on your 2008 Dodge Ram to install the # C56071 are on the harness that runs to the 7-way of your truck. Easiest way to find it is to trace the harness from the back of the 7-way to the front of the truck. You'll encounter the square connector pretty easily from there. If you fast forward to the 1:40 mark of the attached video link You'll see exactly where to find it as well.
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  • Recommended Base Rail Kit for 2016 GMC 2500 6.5 Bed and Valley 5th Wheel Hitch
    If you have the OEM puck system then you will first need the Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package - 6-1/2' Bed - 21K # DM6194. If you don't have the factory pucks then I recommend the Reese Quick-Install Custom Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches # RP50066-58. Valley is no longer in business so their rails are no longer made and manufacturers don't recommend using their brackets with other rails, so I recommend using the...
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  • Recommended 5th Wheel Hitch for 2013 Ram 3500 with 6-1/2 Foot Bed
    On your 2013 Ram 3500 with 6-1/2 foot bed, a sliding hitch is the route to go for even normal driving. Its the little things like maneuvering around the fuel pump that change things and will make it a game changer for you. Since you are looking for something nice yet economical, I recommend the Reese Custom fit rail kit # RP50054-58 and the Reese 5th Wheel Trailer Hitch w/ Square Tube Slider -16,000 lbs # RP30051. You just want to make sure your trailer GVWR doesn't exceed that 16K...
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  • Best Fifth Wheel Hitch Recommendation for RAM OEM Pucks with 6-1/2 Foot Bed
    For the best 5th wheel hitch compatible with your Ram puck system and short bed I recommend the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 21,000 lbs # DM8550035 along with the Rail Adapter for Ram OEM pucks # DM6099. This combination will utilize your puck system, give you the capacity you desire, and will allow you to stay inside the cab of your truck when making turns even around gas pumps or backing into your campsite. The automatic slider...
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  • Compatibility of Reese Sliding 5th Wheel Hitch # 30075 for 2018 Ram 2500 With Factory Prep Kit
    When using the Reese 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package - 25,000 lbs # RP30154 you can absolutely use the Reese 5th Wheel Trailer Hitch w/ Round Tube Slider - Dual Jaw - 16,000 lbs # RP30075. This will give you 11 inches of travel to work well with your 2018 Ram 2500 with 6 foot 4 inch box. You may also want to consider the wiring harness # A10-7007 to add a second 7-way to the inside bed rail of your truck for easy connection access and a clean look.
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Jameson C
Installed by:
Jeff D
Video Edited:
Jacob T
Video by:
Dustin K
Updated by:
Mary E
Updated by:
Halie H
Written by:
Amanda M
Test Fit:
David F

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