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

Part Number: C51362

239 Reviews | 70 Questions

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$13.44

Retail:$30.63

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curt accessories and parts wiring adapter plugs into brake controller

curt accessories and parts trailer brake controller

curt accessories and parts plugs into brake controller c51362

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Videos

Install: Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness on a 2015 Toyota 4Runner

Breaking Down the Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness

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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 brake controller and then plug the other end into the built-in port beneath your vehicle's dash. 1-800-940-8924 to order CURT accessories and parts part number C51362 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In. Accessories and Parts reviews from real customers.

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CURT Accessories and Parts - C51362

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 harness is located underneath the dash, to the left of the steering column, and it is taped to another harness 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.

51362 Curt Quick Plug Brake Control Adaptor Harness

Installation Details C51362 Installation instructions

This Product Fits The Following Vehicles

2003 - 2022 Toyota 4Runner with factory Tow Package
2010 - 2023 Lexus GX 460 with factory Tow Package
2003 - 2009 Lexus GX 470 with factory Tow Package
2024 - 2027 Lexus GX 550 with factory Tow Package
2003 - 2021 Toyota Land Cruiser with factory Tow Package
2003 - 2007 Lexus LX 470 with factory Tow Package
2008 - 2021 Lexus LX 570 with factory Tow Package
2022 - 2027 Lexus LX 600 with factory Tow Package
2003 - 2028 Toyota Sequoia with factory Tow Package
2005 - 2015 Toyota Tacoma with factory Tow Package
2003 - 2014 Toyota Tundra with factory 7-Way

Customer Satisfaction Score:

97% were satisfied with this product

3% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Did not arrive in time

3% of customers were not satisfied

Product did not meet expectations
Wrong item was ordered
Did not arrive in time

4.8

239 reviews

5 Stars		(209)
4 Stars		(24)
3 Stars		(3)
2 Stars		(1)
1 Star		(2)

by: Bruce D. 08/10/2020

Using the Curt wiring adapter, installing the Curt TriFlex brake control in my 2006 Toyota Tundra was simple after watching your video. Very pleased with everything I ordered from e trailer.

Click to Enlarge

by: Tom and Anita 09/19/2016

2010 Toyota Tundra

Yes I received my order and installed the brake controller. All seems to be
fine, although I have yet to tow with it yet. Here are a couple photos of
the installation in my 2010 Toyota Tundra.

Click to Enlarge

by: Glenn 08/24/2020

2011 Toyota Sequoia

Installed on 2011 Toyota Sequoia - Plug and play as advertised.

Click to Enlarge

by: Ed D 01/19/2015

2010 Toyota Tundra

Well that was the easiest thing I've ever done on a vehicle. The info on the etrailer site was instrumental in this being a quick plug-n-play mount of the Curt brake controller. I watched the two minute video and 10 minutes later I had a new brake controller installed in my 2010 Tundra.

Ed D. One Year Later

1/19/2016

One year later and the install looks good and the Curt brake controller works as advertised, Im happy!

by: Wade V 07/28/2015

2008 Toyota Tacoma

Teconsha P3 is an excellent brake controller.

Even better was the customer service from etrailer....I had an issue with another model, called etrailer, and they made it right. No questions asked. Will definitely shop with them again. Thanks, etrailer! -wade

Wade V. One Year Later

8/5/2016

Love the Tekonsha. Will not buy another Curt. Thanks for asking. And e-trailer was great, especially dealing with the dysfunctional Curt. Thanks.

by: John 06/20/2019

The adapter for connecting the trailer brake controller arrived earlier than scheduled. It enabled a quick and easy plug and play connection of the controller to the vehicle.

John One Year Later

6/21/2020

Worked perfectly - plug and play

by: Andrew 05/15/2017

2012 Toyota Tundra

I installed the Curt TriFlex Brake Controller C51140 along with Wiring Adapter C51362 on my 2012 Tundra. Was super easy. Thanks for video.

Andrew One Year Later

5/15/2018

Perfect. No issues at all.

by: Pat M 11/18/2016

Etrailers catalogue provided a complete & accurate description of the 8 items purchased. Placing the order by phone was fast & efficient. Items arrived within 4 working days, no tax no shipping charge. Professional all around.

Pat M. One Year Later

11/21/2017

The EOH braking system works perfectly. You are my supplier of choice if when I need additional trailer parts on the future.

by: Shaun 09/29/2025

Fit perfectly on my 2023 Toyota 4Runner

by: Christopher 04/29/2023 One Year Later

I’ve owned 5 brake controllers. This is the only one I’ve disliked. This controller has non digital controls (should have been my first clue it might not be good) it just has two slide controls. Problem is two things, the slide controls themselves are black, the same color as the case on the unit and you can’t even see the position of the slide controls because they blend in with the color of the case. It’s impossible to tell if they’re turned down all the way, turned up all the way, in the middle? The other problem is that the slides are so imprecise, They slide way too easily and there’s no detents and I found if you even bump the unit slightly or are going over rough roads the slide switches migrate. I was towing a couple of weeks ago and I thought I had the switches dialed in as good as I could, I was on some rough roads, due to road construction in the area, the output switch vibrated over to maximum and the next time I hit the brakes , the trailer locked up completely. So I had to turn it off until I could get to the next town where there was a parking lot I could readjust. I’m definitely getting rid of this thing and I definitely recommend you do not buy it. Buy something with digital output controls so you know precisely where the settings are. I firmly believe this controller is dangerous and I know if I keep using it I’m going to get an accident.

by: Jim W 05/27/2021

Custom cable made my brake controller installation a simple project. Fit perfectly and took all stress out of the job. I would buy again without hesitation.

Jim W. One Year Later

5/27/2022

Yup, still working as supposed to. No complaints. Well worth the money.

by: Ted 05/31/2024 One Year Later

plug in to factory harness without cutting orvsplicing. saved a couple hours working under dash. worth the cost. unfortunatelt harness adapter, brake controller or some other fault is causing random trailer brake lock-up without applying vehicle brakes at highway speeds, a scary event. unable to troubleshoot as winter snow then heart health issue continue to prevent me from moving trailer to troubleshoot.

by: Jason 08/20/2022 One Year Later

This wiring adapter fit perfect between the Curt Adventurer brake controller and the pigtail harness in my '06 Tundra. Remove the truck's driver side kick panel, cut the truck connector loose from where it was secured, and plug this adapter into both the truck and the brake controller. Plug and play.

by: Richard S. 09/26/2017

Mating harness is perfect. Well made, quality connectors, proper length, time saver, priced right, a no brainer. Buy it!!!!!

Richard S. One Year Later

9/27/2018

Great. This controller is very consistent in applying dependable braking while towing our travel trailer. After dozens of trips and thousands of miles the unit continues to do the job. Very satisfied.

by: Bennie D. 05/22/2017 One Year Later

Item worked great. It was able to connect with the Trailer Brake Controller and straight to my wiring harness in my truck. I couldn't have asked for a better installation! Thanks etrailer.com!!!

by: Bill Huffman 12/11/2013

2015 Toyota Tundra

This was my fourth order from etrailer and, as were the earlier ones, was delivered quickly. The instructions were clear and easy to follow and it took me only about 15 minutes to install the Curt Venturer Trailer Brake Controller with the wiring adapter for my 2012 Tundra. The white ground wire did not have to be grounded separately as it connects to a white ground wire in the adapter. I used Velcro on top of the controller and beneath the panel instead of the included bracket and can easily make adjustments without removing it. Adjusting the slides on top and the left side of the controller to get the desired braking action and a test drive to verify took another ten minutes. Great product.

by: Jeff 10/22/2018

2005 Toyota Tundra

I was sent the incorrect "direct plug in" harness originally but after contacting etrailer they sent out the correct one. Everything works perfectly now.
The small rubber pieces that hold the brake controller to the mounting bracket instantly fell off and rolled away, not the best design. Other than that it is small and compact and works great!

by: Garrett L. 07/06/2017

Excellent controller for my needs...fast shipping and a great price too! I read up on Progressive vs. Time Delay controllers; and for my needs I felt this Curt controller would be just fine. I just finished installing and adjusting the controller this morning.
We recently bought a '99 Coleman Westlake Pop-up that weighs about 2,400 lbs. dry (much less than my brake-less boat trailer) and wanted to take advantage of the brakes that came on the camper for when we travel in the SC & NC mountains camping. On level ground I have found the controller to be very responsive and easy to adjust. I am sure having working brakes in the mountains will be nice! As others have said, finding just the right place to mount the controller was the most difficult part. The "plug & play" adapter/harness was more than long enough to complete the installation. Oh, did I mention fast shipping too! I am another very satisfied etrailer.com Customer!

by: Gerard 04/26/2015

Haven't installed yet since I do not have a level surface to calibrate the Curt 51140 brake controller. Travel Trailer currently resting on Jack Stands while in process of doing some restoration work.

Delivery was as expected. Ordered on Sunday and received on Thursday.

I have downloaded and printed PDF instructions (Printed in "Fit to page" for larger print) that will be added to my Owners Manual.

Regarding price; I looked a several RV parts shops and Auto Parts stores both on line and walk-in stores. eTrailer had the best price and the accessories I needed for the installations. The free shipping for orders over $99.00 helped make my decision to place my order. I will revisit the review page when I have everything installed and working.

Thanks eTrailer,
Gerard

by: Greg 11/02/2013

Great website, easy order, arrived a day ahead of schedule. I recommend this site .

Click to Enlarge

by: Frank G 08/02/2016

I was in need of a trailer brake controller along with the wiring harness. ETrailer had a unit in their inventory and made an exact match to connect to my truck. It was delivered on Friday and I pulled a 30 foot, 7500 pound trailer 170 miles on Saturday with brakes that worked flawlessly. I couldn't be happier with my purchase.

by: Robert C. 12/18/2013

2014 Toyota Tundra

The adapter cable I ordered worked just as advertised. It took me longer to find the plug in the pickup than it did to hook the whole thing up. I was transferring my Curt Reflex from my Honda Ridgeline to my new Toyota Tundra. Everything hooked up and works perfectly. Shipping was excellent this time. I'm still waiting for delivery on another product from a different supplier...only 6 days late. Your web site offers some nice products, so I'm sure I'll be ordering again soon. Excellent service and I'm well satisfied. Thank you.

by: Dylan 07/19/2016 One Year Later

2012 Toyota Tundra

I have a 2012 Toyota Tundra and I was adding a trailer brake. This adapter made it simple, took only minutes to install and no cutting wires.

by: Lyn J. 03/31/2017

One of the best internet companies that I have ordered from and I have ordered a lot over the years. Kim was excellent help with my order. I elected for free ship and my order was packed and shipped out on Sat. And
received on Wed.
Pricing was about half of what my local trailer retailer ask.
Bottom line, order from these people and you will not be disappointed.
The Curt controller was very easy to install and adjust and works perfectly. The ball mount is massive, no worries about breaking this monster ! Very pleased with every aspect of this purchase.

by: Patrick 05/05/2016

Worked perfect. Trailer shop wanted $150 to wire up a brake controller in my truck. Cost {$..} for the controller and pigtail took less then 5 minutes. Etrailer made it simple to make sure I had the right wiring for the controller I wanted. Couldn't be happier.

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Do you have a question about this Accessories and Part?

Location of Brake Controller Connector on a 2014 Toyota Tundra
I believe that the photo you sent in is of the OBD-II port on your 2014 Toyota Tundra. This is useful if your vehicle is throwing codes but it is not used for the brake controller. As long as your Tundra has the factory 7-Way at the rear of the truck then the Wiring Adapter # C51362 is the correct part for you to install the Curt TriFlex Trailer Brake Controller # C51140. Try looking to your left behind the side kick panel next to your emergency brake pedal. I have attached both a photo...
view full answer...
Where to Connect Brake Controller Adapter in on a 2014 Toyota Tacoma with Factory 7-Way
If your 2014 Toyota Tacoma came with the Factory 7-Way then you will want to look next to the driver side kick panel for the wiring harness. I have attached a video of the Tekonsha P2 # 90885 being installed on a 2012 Tacoma that you can reference. This installation video shows the Plug-In Wiring Adapter # 3040-P being installed for the P2 which will be the same as Curt Adapter # C51362 for your Curt brake controller. If your connector is not located there then let me know and I can...
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Correct Curt Brake Controller Adapter for 2005 Toyota Tundra w/ Factory 7-Way
In order to get you the correct part I would need to know what brake controller you have as well as if your 2005 Tundra has a factory 7-way or not.
view full answer...
Troubleshooting Red Light On Curt Spectrum With Trailer Brakes Not Working On a 2014 Toyota Tacoma
The first place I would start is with the Curt Custom Wiring Adapter # C51362 that you have connected between the Curt Spectrum Trailer Brake Controller # C51170 and your 2014 Toyota Tacoma. The red light that you are getting when the brakes are pressed indicates that the red wire that connects to the brake switch is either connected to the ground side of the switch or there is a short to ground. I do believe that you have a ground wire issue. The Tekonsha Plug-In Wiring Adapter 3040-P...
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Is the Redarc Tow-Pro Elite Brake Controller Compatible with a 2017 Lexus GX 460 Factory Tow Package
Thanks for reaching out, Neil! Yes, the Redarc Tow-Pro Elite Brake Controller # RED44FR is compatible with your 2017 Lexus GX 460. Since your vehicle has the factory tow package I recommend picking up the Curt Custom Wiring Adapter # C51362 and cutting off the black connector then splicing the universal wiring pigtail from the Redarc to the adapter so you get a plug-and-play setup.
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Help Finding Brake Controller Install Port on 2018 Toyota Sequoia
On your 2018 Toyota Sequoia the factory brake controller plug is located underneath and to the left of the steering column, taped to another harness near the emergency brake pedal. There will be a 5-pin connector that mates with the one on harness # C51362. I have linked a video showing this harness being installed on an older Sequoia to show you the general location and what it looks like. You may have to remove the kick panel next to the emergency brake pedal and it could be tucked up...
view full answer...
Correct Wiring Harness for Installing Curt C51170 Spectrum Brake Controller on 2013 Toyota Tundra
The Curt # C51451 wiring harness isn't the correct harness for your 2013 Toyota Tundra. For your Tundra, you'll want to use # C51362 which is the correct harness for you truck. If you click the provided link, you can see an install video as well as a demonstration video showing how the Curt # C51170 Spectrum brake controller works.
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How to Access Vehicle Brake Light Signal for Trailer Brake Controller Installation
If your 2005 Toyota Sequoia has a factory-installed 7-way trailer connector you can install the Curt Discovery trailer brake controller # C84VV using only the mating wiring adapter part # C51362. If it does not then the installation will be hardwired. You can gain access to the vehicle brake light signal, which is what triggers the Discovery controller to generate output voltage for the trailer brakes, either by tapping into brake light wiring or by installing a fuse tap in the brake light...
view full answer...
Troubleshooting OL Code On Curt TriFlex Trailer Brake Controller W/ Trailer Unhooked
Since your Curt TriFlex Trailer Brake Controller - 1 to 4 Axles - Proportional # C24VV you have is showing OL (overload) code even when trailer is unplugged that means that there is a short in the blue trailer brake output wire. I recommend cutting the blue wire of the # C51362 you have installed in the factory trailer brake port of your 2011 Tundra. If cutting the wire makes the code go away then there is a short somewhere between the trailer brake controller and the 7-way connector and...
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Trailer Brake Controller Plug-In Adapter for 2016 Toyota Land Cruiser
If your 2016 Toyota Land Cruiser has the factory-7-Way installed, the Curt Plug-In Wiring Adapter # C51362 referenced in your question is confirmed to fit and will be all you need to install a Curt trailer brake controller like the Assure # C49UR. One end of the adapter will plug into the brake controller and the other end will connect to the built-in harness beneath your vehicle's dash.
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Wiring Harness to Install Curt Discovery Brake Controller on 2010 Toyota Tundra
In order to install the Curt Discovery Trailer Brake Controller part # C84VV on a 2010 Toyota Tundra you'll need the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51362.
view full answer...
Install Harness for Curt Brake Controller Installed on 2014 Toyota Tundra
To install a Curt brake controller like the Assure part # C49UR in your 2014 Toyota Tundra the correct install harness would be the part # C51362. I checked with them and was not able to find a different harness they recommended.
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Brake Controller Wiring Adapter for a 2015 Toyota Tacoma with Factory 7-Way
No worries, the 5-wire harness will work just fine because the extra connection is for the illumination circuit and it's not needed. The Curt Discovery trailer brake controller # C84VV is a fit for your 2015 Toyota Tacoma and the direct fit pig tail adapter # C51362 you referenced is correct. You will simply plug the adapter # C51362 into your factory brake controller tow port and route the pigtail to the location of your choice so you can connect your brake controller.
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Parts Needed To Wire Brake Controller From Brake Buddy Stealth To 2018 Toyota 4Runner
With the Brake Control # HM39533 for the Brake Buddy Stealth # HM39530 having a hardwire design you will need to modify the Pigtail # C51362 so you will be able to connect it on your 2018 Toyota 4Runner. The pigtail contains the white end which will connect on your 4Runner so you will simply need to cut off the black connector and wire the controller to the portion left on the pigtail. The wire colors will all match from the controller to the pigtail. This pigtail uses the same connector...
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Trailer Brake Controller For 2010 Toyota Sequioa With Factory Tow Package
To connect the Curt Spectrum Trailer Brake Controller # C51170 to your 2010 Toyota Sequoia with the factory tow package you will need the Curt Custom Wiring Adapter # C51362. This will allow you to plug into the factory connector located behind your dashboard making the controller a plug and play connection.
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Where to Plug In Curt TriFlex NEXT Brake Controller on 2015 Toyota Tacoma
Thanks for the purchase, and the brake controller port on your 2015 Toyota Tacoma will be up above and to the left of the emergency brake pedal for plugging in the Curt TriFlex NEXT Trailer Brake Controller # C24VV with the Plug-In Wiring Adapter # C51362. The plug is rectangular in shape, and I have added a couple of photos for you showing both the orientation of the plug-in port as well as what it looks like so you can get a good idea of what you are looking for.
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Where is Trailer Brake controller plug in on 2016 Toyota Land Cruiser?
The brake control plug in for your 2016 Toyota Land Cruiser is underneath and to the left of the steering column, probably taped to another harness near the emergency brake pedal. That harness may also be tucked up and above the emergency brake pedal or behind the kick panel left of the pedal. That harness is what you will plug in Wiring Adapter # C51362 so you can use your Curt Spectrum Trailer Brake Controller # C51170.
view full answer...
Recommended Brake Controller and Adapter for a 2009 Toyota Tundra w/ the Factory Tow Package
Since your 2009 Toyota Tundra has the factory tow package, you will want the Curt Custom Wiring Adapter item # C51362. This adapter will plug into a port which is under the dash to the left of the steering column. You will be able to use this adapter to install the Curt Spectrum Trailer Brake Controller item # C51170 without having to cut or splice wires. The Universal Wiring Adapter for Curt Trailer Brake Controllers item # C51515 you referenced, is for vehicles without the tow package....
view full answer...
What is Needed to Install Tekonsha Brake Controller in 2004 Toyota Tundra
If your 2004 Toyota Tundra has a 7-way trailer wiring connector at the rear of it then to install a Tekonsha brake controller like the # 90885 would only require the custom install harness # 3040-P. If you do not have a 7-way then yes you would need the # ETBC7 to convert it to a 7-way and wire up the brake controller.
view full answer...
Where to Mount Curt TriFlex Brake Controller on a 2016 Toyota 4Runner
I am going to start with the easy part of your questions if you don't mind! For the Curt brake controller you have the wiring harness needed to plug it into your 2016 Toyota 4Runner is # C51362. As far as placement I have seen the interior of the 2016 4Runner and like you said there is almost no free space! But it looks like to the right of about where your right knee would be there is a vertical space in the center console that appears to be directly in front of the emergency brake lever....
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Brake Controller Wire Functions for a 2003 Toyota Tundra
If your 2003 Toyota Tundra came with a factory installed 7-Way trailer connector and you are using Curt brake controller # C74VV then you will need the proper wiring harness to plug it into your truck, # C51362. If your truck did not come with factory 7-Way and you are trying to hardwire in the controller then the black wire is 12 volt power to the controller, white is the ground wire, red is input from the cold side of the brake switch, and blue is output to the trailer brakes. I have...
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Parts Needed to Install Curt C51170 Spectrum Brake Controller on 2007 Lexus GX470
For a 2007 Lexus GX470 with the factory 7-way installing the Curt # C51170 Spectrum brake controller would be a plug and play installation. Other than the # C51362 brake controller wiring harness, no other parts would be needed. The connector for the brake controller is located under the dash near the top of the emergency brake pedal.
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Brake Controller Install Harness for P2 for 2005 Toyota Sequoia
The harness that Tekonsha used to have available that fit the P2 part # 90885 to your 2005 Toyota Sequoia was the part # 3040-P but it is currently unavailable so what you would need to to is adapt the # C51362 from Curt by cutting off the end and wiring it to the universal harness that came with the P2.
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Will Curt Assure Brake Controller Be Smoother than Escort Brake Controller
The Curt Assure brake controller part # C49UR when properly set up will be incredibly smooth unlike what you have now. This controller has an inertia sensor that can tell how hard you are applying the vehicle brakes and applies a proportionate amount of braking pressure on the trailer brakes. To install it in your 2012 Toyota Tacoma you'd just need the install harness part # C51362 which plugs in under the dash.
view full answer...

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