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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.
Features:
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.
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Just what I needed to move my brake controller to my new truck. Best price that I found.
Easy hook up to the OEM plug
Easy plug and play. Would buy again.
This is used on a 2020 Chevy Silverado 1500 pulling a 16' enclosed cargo trailer. With the appropriate adaptor cable it was very easy to install, just plug in and mount in a convenient spot. Once installed it was simple to get it matched to the weight and brake setup of the trailer. Close to 6k miles with it so far & very happy.
Plug and go. Works great with my 2023 GMC Sierra.
The wiring adapters worked great. It made installation quick, easy, and clean.
Works just like it should!
We got a new truck and needed to convert our trailer breaking unit to the new truck. I wrote to be sure what I needed, got an answer right away, ordered it, and it was easily installed!
Works great on my 22 Silverado tricky plug install but Curt has great cus sec to help.
The products are excellent and the installation instructions are very easy to follow. Products are very well made
Worked great with the Controller, and was a simple plug and play installation
Having issue with intermittent power.

Jenny N.
5/31/2024
Jon, what you will want to do is to take a multi-meter like the Item # PT29ZR and ensure you are getting power to your controller. You should be getting 12 volts on the black power wire and when you hit the manual over ride you will get 12v on the blue brake controller wire. If you are not getting full power you will have a loose connection somewhere and you will want to start at your fuse and work forward until you find it.
Seamless connection!
Adapter is well worth it! No fussing with the wiring, just plug and go
Was just able to install controller, everything went really smooth, works great, thank you for the quick delivery as always.
Great fit, working like a charm!
This break controller was easy to install and works great!!
Plug and Play installation with this cable! Thanks!
Easy install with good instructions. Works well!
I like the way it installed
The combo of the Curt Spectrum brake controller and wiring harness made installation a snap
Makes hookups fast and easy.
Product was perfect for my use.
It does what it's supposed to.
It had the correct connections and works perfectly!
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Travis
9/8/2023
The wiring adapter made connecting the trailer brake controller so quick and easy that I dont think I will ever use butt splices again.