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Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In

Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In

Item # C51451
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C51451 - Plugs into Brake Controller Curt Trailer Brake Controller
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Install your Curt electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your controller and then plug the other end into the built-in port beneath your 's dash. Call 800-298-8924 to order Curt accessories and parts part number C51451 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (85)
  • Q & A (26)
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2017 Cadillac Escalade - Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In

  • Trailer Brake Controller
  • Wiring Adapter
  • Curt
  • Plugs into Brake Controller
  • Vehicle Specific

Install your Curt electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your controller and then plug the other end into the built-in port beneath your 's dash.


Features:

  • Plug-in wiring adapter allows for quick, simple installation of your electric trailer brake controller
  • No cutting or splicing required
    • Custom connector end plugs into the built-in port beneath the dash of your vehicle
    • Other end plugs into the back of your electric brake controller
  • Compatible with time-delayed and proportional brake controllers from Curt
    • Brake controller must have built-in plug for adapter to connect - will not work on controllers with pigtail wiring harnesses
  • 2' Long, 12-gauge wires have protective covering to deter damage
  • Limited 1-year warranty


Installation of Curt Brake Controller Adapter

To install your Curt electric brake controller, you need to connect the wiring of the controller to your vehicle. Certain auto manufacturers offer pre-wired options, typically known as tow packages, wherein wiring is run for you from the dash to the trailer connector on the back of your vehicle. When this is done, a port is installed at your dash so that you can easily plug in a brake controller.


This adapter plugs into the port on your vehicle's built-in brake control wiring harness. The port is located in the wiring panel underneath the dash, to the left of the steering column, near the emergency brake pedal.


No hardwiring is required to install this adapter. After you plug it into the factory port, you simply plug the other end of the adapter directly into your electric trailer brake controller. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time to transfer it to another vehicle or securely stow it away.



51451 Curt Quick Plug Brake Control Adaptor Harness

Installation Details C51451 Installation instructions

California residents: click here



Customer Reviews

Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In - C51451

Average Customer Rating:  4.9 out of 5 stars   (84 Customer Reviews)

Install your Curt electric trailer brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your controller and then plug the other end into the built-in port beneath your vehicle's dash.

- C51451
by:

Custom wire adapter makes installation plug and play. 861112



- C51451
by:

Great product, easy to install. Also very good customer service. 855047



- C51451
by:

Recieved almost overnight. I haven't installed it yet but I'm sure like all Curt product it will be a snap. If I have an issue, etrailers excellent record of customer service will take care of any issue. 814727



- C51451
by:

That plug adapter worked good. There was no attaching ends or soldering. The plug & play worked good 806726



- C51451
by:
2017 GMC Yukon

Extremely easy to install! Video was 100% accurate to time and steps for install as well! I am very happy! 804875



- C51451
by:
2015 Chevrolet Silverado 1500

Must have "accessory" for the brake controller. Made install a snap. YouTube video was very helpful in locating the vehicle's plug in. 801843



- C51451
by:

i was satisfied with this product. Even more satisfied with etrailer.com 803696



- C51451
by:
2015 Chevrolet Suburban

Just what I needed to make installation of the brake controller a snap. 798844



- C51451
by:
2014 GMC Sierra

Easy to install on my GMC Sierra. Worked perfectly for my pop up camper 797165



- C51451
by:

These guys are awesome y’all!! Ordered a part on a Friday, had it in my hand Monday. Great folks to do business with! 779462



- C51451
by:

This was a breeze to install took all of 5 minutes 750267



- C51451
by:

Simple to use has work as it should made my instal quick and easy 735587



- C51451
by:

product works as described, great price and fast shipping 715123



- C51451
by:

Totally worth adding this to the purchase of the controller. Cut the installation time and messing around with wiring or splicing ends together 694145



- C51451
by:

Perfect match! Easy plug-in. 692048



- C51451
by:
2018 Chevrolet Silverado 1500

Product came on time. Excellent plug and play device. Will continue to buy from etrailer for my camper needs. 678526



- C51451
by:

Easy to install and worked great right out of the box. 678908



- C51451
by:

No cutting wires!!!... easy plug in underneath my dash board ....and the right plug in from original factory!! 676799



- C51451
by:

Excellent service and great products 665540



- C51451
by:

Worked like it was supposed to. 655998



- C51451
by:

Works an expected. Will do business with them again. Great customer service! 604208



- C51451
by:
2018 Chevrolet Silverado 1500

Doesn’t plug into controller 596683


Comments
It appears what was ordered was a curt brake controller adapter and a tekonsha brand brake controller part # 39523. The Tekonsha brake controller adapter you will need for the 2018 Chevrolet Silverado 1500 with towing package is part # 3016
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers
$28.62
. This brake controller adapter will plug under the dash of your 2018 Chevrolet Silverado 1500 with towing package and into the Tekonsha powertrac brake controller.
-- Heather A - 01/14/2019

48537

- C51451
by:

Was the right adapter...plug and go....thank u again 577830



- C51451
by:
2018 Chevrolet Suburban

Plug n play perfection !! Easy to choose my specific application vehicle year make and model and together paired with proper controller installed in minutes thanks to video as well 561686



- C51451
by:

Very fast shipping item just as described thanks. 543351


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Ask the Experts about this Curt Accessories and Parts

  • Curt Brake Controller Wiring Adapter for a 2006 GMC Sierra
    We do have a plug-in adapter for your 2006 GMC Sierra, but the Curt # C51451 that you referenced is a fit for Chevy Silverado and GMC Sierra pickups starting in 2014. For your 2006 Sierra you want the Curt # C51352 instead. This adapter will plug into the junction box beneath your vehicle's dash as is demonstrated in the attached photos.
    view full answer...
  • Where Does a Brake Controller Plug In on a 2014 GMC Sierra 1500
    On your 2014 GMC Sierra 1500 there is a junction box with a black cover on it located on the driver's side floorboard, way in the back, to the left of the brake pedal. There should be an empty spot to plug in the wiring harness located in the upper left corner. I have included a link to a video that should help. It is a different harness but it plugs into the same spot.
    view full answer...
  • Does Curt Brake Controller Install Harness part # C51451 Fit 2018 Chevy Silverado 2500HD
    Yes, the Curt brake controller install harness part # C51451 that you referenced is a confirmed fit for your 2018 Chevy Silverado 2500 for installing a Curt brake controller like the Curt Triflex part # C51140 which would be a great option.
    view full answer...
  • How Does Brake Controller Install in 2014 GMC Sierra 1500 Using Factory Install Harness
    The brake controller jumper wire you found in the glove box can be used to wire in the brake controller you have. I am not sure which controller you have but basically you'll plug the harness into the port under your dash for the brake controller install and then you'll wire it color for color to the brake controller's wiring and it will be wired in and ready to work.
    view full answer...
  • Curt Brake Controller Wiring Harness for 2018 Chevy Suburban
    The Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # C51451 is a fit for your 2018 Chevy Suburban if you already have the factory tow package with the factory 7-way trailer connector. If you do not have the factory 7-way, then you will need the Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors # 30955 and will hardwire the wires present under your dash to the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515.
    view full answer...
  • Brake Controller Wiring Harness for 2015 GMC Sierra 1500 and Curt TriFlex Brake Controller
    For your 2015 GMC Sierra 1500 and Curt TriFlex brake controller # C51140 you will need wiring harness # C51451 to plug the controller into your truck. I have linked videos and instructions for both parts for you.
    view full answer...
  • Brake Controller Install Harness and Brake Controller Recommendation for 2015 Chevy Silverado 1500
    Yes, the Curt brake controller install harness part # C51451 that you referenced will allow you to install a Curt brake controller in your 2015 Chevy Silverado 1500 like the Curt TriFlex part # C51140.
    view full answer...
  • Wiring Harness to Plug in a Curt Venturer Brake Controller to a 2002 GMC Yukon XL Denali
    We certainly do! For your 2002 GMC Yukon XL Denali you will need wiring harness # C51342 to plug in your Venturer brake controller # C51110. I have included a link to a video review of the harness for you.
    view full answer...
  • Is Curt Spectrum Trailer Brake Controller a Good Option for 2018 Chevy Silverado 1500
    The Curt Spectrum Trailer Brake Controller # C51170 is a great choice for a brake controller in your 2018 Chevy Silverado 1500 because it is easy to use with the control knob you referenced and is a proportional controller so you will get smooth braking. To install it in your '18 Silverado you would also need the Curt Custom Wiring Adapter # C51451. The only other brake controller I recommend checking out is the Curt Echo Mobile Trailer Brake Controller # C51180 because this is even...
    view full answer...
  • Recommended Brake Controller Wiring Adapter For 2019 Chevrolet Silverado 2500 HD
    For your 2019 Chevy Silverado 2500 HD there are many adapters. Here is the list based on brand: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers # 3016 is the adapter you need for Tekonsha and Draw-Tite Brake Controllers. Curt brake controllers will use # C51451. Hayes controllers will use # HA81798-HBC. Hopkins controllers will use # HM53075. For a more universal pigtail, you can use # 3016-S. I've also attached an article on GM Full Sized trucks with...
    view full answer...
  • What Install Harness is Needed for Curt Spectrum in 2019 Chevy Suburban
    The install harness you need for the Curt Spectrum part # C51170 in your 2019 Chevy Suburban is the part # C51451 which plugs directly into the port on your vehicle and then into this controller for a simple install.
    view full answer...
  • Brake Controller Install in 2014 GMC Sierra
    The install procedure will depend on if you have a 1500 or a 2500/3500 Series. If your Sierra is a 1500 model, you will need a brake controller wiring adapter harness, part # C51451. The 2500 and 3500 series would have the tow package wiring that sits above where the driver's left knee sits. If you click the video link I've provided, you can see a controller being installed in a 2014 GMC Sierra 1500. The FAQ link I provided shows how to install a controller in the 2500/3500 model. The...
    view full answer...
  • Will Curt Brake Controller C51110 Fit a 2015 GMC Yukon XL
    Yes, you can use the Curt brake controller # C51110 in your 2015 GMC Yukon XL. If your Yukon came with the factory tow package that included a 7-Way trailer connector you will also need wiring harness # C51451 to plug the controller into the port under the dash. If your Yukon did not come with a factory tow package and 7-Way the brake controller can be wired to a set of factory wiring located under the dash, to the left of the steering column, held together with a white tag. You would...
    view full answer...
  • How to Insatll a Curt Brake Controller in a 2014 GMC Sierra
    Yes, you can. If your 2014 GMC Sierra is a 1500 model all you would need is the Curt Wiring Adapter part # C51451 to install your Curt Venturer Trailer Brake Controller # C51110. If your 2014 is a 2500 or 3500 the connections are available under the dash of your vehicle. You would want to wire the controller up to the wires under your dash. Check out the FAQ article I attached on how this is done.
    view full answer...
  • Brake Controller for 2014 GMC Sierra 1500 and is Weight Distribution Needed for 3500 lb. Trailer
    Weight distribution should be used if the gross trailer weight is at least 50 percent of the vehicle weight or if the trailer causes the rear end of the vehicle to sag when coupled. Since your truck probably doesn't weigh over 7,000 pounds (though it might) using the weight distribution system you have for the trailer would not be a bad idea at all. It would give you a better ride overall and will help distribute the trailer tongue weight to all axles of the tow vehicle and trailer. You...
    view full answer...
  • Is Curt Venturer Trailer Brake Controller a Plug-and-Play Option on 2014 GMC Sierra?
    If you have the factory tow package on your 2014 GMC Sierra 1500, which from your description it sounds like you do, then the Curt Venturer Trailer Brake Controller # C51110 is plug-and-play. All you need is the Curt Custom Wiring Adapter # C51451; one end plugs into the brake controller and the other end plugs into the port beneath your dash. I have added links to video reviews of these products for you to take a look at as well.
    view full answer...
  • Which Adapter for Curt Spectrum Brake Controller Installation on 2014 Chevy Silverado
    It sounds like you're looking for the correct adapter plug that would allow you to use the Curt Spectrum Brake Controller # C51170, which can be found with part # C51451. This will plug into the port under the dash and connect to the Spectrum; I've linked an installation video of this controller for you to check out to see how the process works.
    view full answer...
  • Where Is The Trailer Running Lights Fuse On a 2014 GMC Sierra 1500
    For starters, the Curt TriFlex Trailer Brake Controller part # C51140 and Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51451 have nothing to do with the running light circuit. The most likely cause of this issue is a blown fuse on the vehicle. For your 2014 GMC Sierra 1500, the running light fuse is in the #15 position on the fuse box which is labeled as "Trailer Park Lamps".
    view full answer...
  • Wiring for a Brake Controller in a 2014 Chevy Silverado 1500
    I can definitely help you with a connecting your Curt Venturer Brake Controller # C51110. For this install, you will need a Curt wiring harness # C51451. To install this harness, you need to remove the cover from the black box to the left of the brake pedal. Inside that box, there is a plug in for the brake controller wiring harness. From there it is simply routing/hiding wires and mounting the Brake Controller then pressing the quick connects into place. I've attached a video for...
    view full answer...
  • Will Curt Spectrum Brake Controller for 2018 Chevy Silverado 3500 Work With EOH Brakes
    The Curt Spectrum Brake Controller # C51170 will absolutely work with your 2018 Chevy Silverado 3500 and is going to be a much better option than a factory brake controller for a trailer with electric over hydraulic brakes. We see very often that factory brake controllers struggle with electric over hydraulic braking systems and the Spectrum is going to be a major upgrade in this regard as it is designed to work with electric as well as EOH systems. You will also need the Curt Custom...
    view full answer...
  • Can Curt Venturer Trailer Brake Controller # C51110 be Used in 2015 Chevrolet Silverado 1500
    The Curt Venturer Trailer Brake Controller, # C51110, can be used in a 2015 Chevrolet Silverado 1500 with no modifications needed. You will just need the Custom Wiring Adapter, # C51451, to get the controller wired and ready to go. One end of the adapter plugs into the controller and the other end plugs into the built-in port up under your dash. Quick and easy installation.
    view full answer...
  • Installaton of Curt Discovery Trailer Brake Controller on 2015 GMC Yukon
    I assume you have the factory tow package on your 2015 GMC Yukon and if so the correct wiring adapter for your 2015 GMC Yukon to install the Curt Discovery Trailer Brake Controller # C51120 is the Curt Custom Wiring Adapter for Trailer Brake Controllers # C51451; this would be all you need and if you have something different that may be why you are having this issue. If you do not have the factory tow package on your 2015 Yukon, to install the Curt Discovery Trailer Brake Controller...
    view full answer...
  • How Would Curt Brake Controller Install Harness Wire to Tekonsha Controller in 2017 Chevy Tahoe
    So the Curt trailer wiring harness # C51451 that you referenced for your 2017 Chevy Tahoe can very easily be wired to your Tekonsha Voyager # 39510 by just matching the colors between the two harnesses. All of the color/functions are same so it's a really easy swap. Or you could use the install harness # 3016 which would plug straight into the Voyager and to the install port of your 2017 Chevy Tahoe for the brake controller.
    view full answer...
  • Parts Needed to Install Curt Spectrum Brake Controller in 2020 Chevy Tahoe
    The Curt Spectrum brake controller part # C51170 that you referenced is a really great option for a brake controller for your 2020 Chevy Tahoe. All you'd need to install it is the install harness part # C51451 which plugs right into the port under the dash of your vehicle and then into the black connector of the controller. For an easier to install option the Curt Echo part # C51180 would just plug into your 7-way and once synced to your smart phone is ready to tow without anything that...
    view full answer...
  • Electric/Hydraulic Compatible Brake Controller Recommendation for 2018 GMC Sierra 2500
    It sounds like you're looking for a brake controller to install on your Sierra that is compatible with the electric over hydraulic brakes on the trailer you need to tow. If so, the Curt Spectrum Trailer Brake Controller, part # C51170 is an excellent choice that is fully compatible with electric over hydraulic trailer braking systems. The Spectrum is a proportional brake controller, which means that you can expect the brakes on the trailer to be applied at the same time and with...
    view full answer...
  • Parts Needed To Install Curt Brake Controller on a 2018 Chevy Silverado 1500
    It sounds like you are looking for the correct brake controller adapter harness needed to install a Curt Trailer Brake Controller like the Venturer part # C51110 on a 2018 Chevrolet Silverado 1500 and if that's the case you will need the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51451.
    view full answer...

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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Written by:
Laura H
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B

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