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  5. Plugs into Brake Controller
THIS ITEM IS NOT A FIT FOR
2017 Lexus IS 350
CURT

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

Part Number: C51525
90 Reviews | 29 Questions
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$14.60
Retail:$31.03
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 Accessories and Parts
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2017 Lexus IS 350

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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 C51525 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 - C51525

  • Trailer Brake Controller
  • Wiring Adapter
  • Plugs into Brake Controller
  • CURT

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:

  • 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.



51525 Curt Quick Plug Brake Control Adaptor Harness

Installation Details C51525 Installation instructions

This Product Fits The Following Vehicles






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Customer Satisfaction Score:

Ratings & Reviews

4.8

90 reviews
5 Stars
(79)
4 Stars
(8)
3 Stars
(2)
2 Stars
(0)
1 Star
(1)
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by:
Was put in the mailbox.still waiting on item number 2
by:
2022 Chevrolet Silverado 2500
The wiring adapters worked great. It made installation quick, easy, and clean.
Travis profile picture

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.

Mike L. profile picture
Etrailer Expert

Mike L.

11/1/2023

@Travis The custom brake controller adapters like the Curt # C51525 certainly make the brake controller install much quicker and less complicated!
by:
Chevrolet Silverado
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.
by:
2022 Chevrolet Silverado 1500
Just what I needed to move my brake controller to my new truck. Best price that I found.
by:
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!
by:
Easy hook up to the OEM plug
by:
Easy plug and play. Would buy again.
by:
2024 Chevrolet Silverado 1500
The combo of the Curt Spectrum brake controller and wiring harness made installation a snap
by:
The products are excellent and the installation instructions are very easy to follow. Products are very well made
by:
Worked great with the Controller, and was a simple plug and play installation
by:
This break controller was easy to install and works great!!
by:
Adapter is well worth it! No fussing with the wiring, just plug and go
by:
2020 Chevrolet Silverado 1500
Was just able to install controller, everything went really smooth, works great, thank you for the quick delivery as always.
by:
Easy install with good instructions. Works well!
by:
Plug and Play installation with this cable! Thanks!
by:
GMC Sierra
Plug and go. Works great with my 2023 GMC Sierra.
by:
The rep was very Knowledgeable about the brakes. It arrived fast!
by:
Having issue with intermittent power.
Jenny N. profile picture
Etrailer Expert

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.

by:
Works just like it should!
by:
Chevrolet Silverado
Works great on my 22 Silverado tricky plug install but Curt has great cus sec to help.
by:
It had the correct connections and works perfectly!
by:
2019 Chevrolet Silverado 1500
The products I order fit great, work great and look good. The informational video were a big help.
by:
Michael profile picture

Michael

2/17/2022

One year on and still functioning fine

by:
Works great looks great
by:
Thanks for helping get the correct parts...I will be shopping again [Thumbs up]
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Info for this part was:

Employee Lindsey S
Edited by:
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Employee Jameson C
Expert Research:
Jameson C
Employee Kathleen M
Installed by:
Kathleen M
Employee Daniel M
Installed by:
Daniel M
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
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Employee Kristina F
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Employee Isabelle B
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Video by:
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Employee Matthew B
Test Fit:
Matthew B

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