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CURT 51170 Spectrum Original Equipment Style, Integrated Electric Trailer Brake Controller, Proportional

4.3 4.3 out of 5 stars 644 ratings

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Purchase options and add-ons

Material Acrylonitrile Butadiene Styrene (ABS)
Brand CURT
Color Black
Product Dimensions 3"L x 3.75"W
Number of Pieces 1
Style
Simple
Handle Type
Knob
Finish Type
Metallic
Handle Material
Acrylonitrile Butadiene Styrene

About this item

  • FACTORY LOOK. The Spectrum trailer brake controller is designed to mount onto the dash of your vehicle and integrate with the other controls like a factory brake controller; It allows you to control and monitor all brake settings using a simple knob. Compatible with low-volt, PWM, ABS, cruise control and electric over hydraulic
  • HIDDEN MAIN MODULE; To maintain powerful trailer brake operation without obstructing your vehicle dash, the computer module of this brake controller is separate from the control knob and can be mounted out of sight
  • INTELLIGENT BRAKING; This trailer brake controller operates with an integrated circuit called a triple-axis accelerometer; This circuit detects motion on three planes and provides braking power accordingly, up or down a hill
  • EASY ADJUSTMENT; The Spectrum electric brake controller is highly adjustable to accommodate different vehicles, trailers and loads; The push-button knob offers easily accessible manual override whenever needed
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Important information

Legal Disclaimer

The information provided is for general informational purposes only.


From the manufacturer

CURT Towing Accessories - Trailer Hitches

Wherever your work or play takes you

CURT offers custom trailer hitches, electrical products and a complete line of towing accessories to get you there with confidence and enjoy every mile of the journey.

CURT Spectrum Factory-Style Trailer Brake Controller

Spectrum Electric Trailer Brake Controller

Powerful. Integrated. Factory-style.

The CURT Spectrum trailer brake controller provides powerful brake operation at your fingertips, featuring a simple, dash-integrated knob with a separate computer module.

The knob has 10 tri-color LEDs and a rotary, push-button to control and monitor all trailer brake activity.

The separate computer module can be mounted out of sight, providing smooth, responsive braking and promoting a true factory look and feel on the dash of your vehicle.

Key features of Spectrum brake controller

  • Factory-style, rotary knob
  • Separate, hidden computer module
  • 10 tri-color LED display
  • Powerful, proportional brake operation
  • Dash drill mount or adhesive mount

Fully integrated, original equipment look and feel

CURT Spectrum Trailer Brake Controller Rotary Knob

Spectrum Trailer Brake Controller LED Display

Spectrum Trailer Brake Controller Stick-On Adhesive CURT

CURT Spectrum Brake Controller Hidden Module

Simple, rotary knob

All trailer brake settings and conditions are communicated through the simple but powerful rotary knob of the Spectrum trailer brake controller. It provides highly responsive operation without cluttering up the look of your vehicle’s dash.

Ramp-up LED display

The Spectrum brake controller displays all settings, preferences and operations through 10 tri-color LED lights. Encircling the knob control, the lights flash, ramp up and change color based on the various braking conditions and user input.

Two mounting options

The rotary knob can be mounted onto the dash for a completely integrated look with the vehicle’s other controls. Each brake controller comes with hardware for a drill mount, as well as an adhesive pad for a surface, stick-on mount.

Out-of-sight module

The main module that controls and operates the trailer brakes is separate from the rotary knob, allowing you to mount it out of sight. This promotes a factory look and feel in the interior of your vehicle, unlike most other aftermarket brake controllers.

CURT Spectrum Electric Trailer Brake Controller

Vehicle-specific installation

Spectrum installs easily with a CURT quick plug brake control harness. Each wiring harness is made vehicle-specific for a custom fit on each unique make and model.

Smart brake controller operation

CURT Spectrum OE Trailer Brake Controller Responsive Braking

CURT Spectrum Electric Trailer Brake Controller Manual Override

CURT Spectrum Original Equipment Trailer Brake Controller Auto Leveling

Highly responsive

The Spectrum electric trailer brake controller not only has a subtle, integrated design, but it also provides intelligent, responsive braking. It uses an advanced accelerometer circuit to measure the inertia of the vehicle on three separate planes. It is able to sense the motion of the vehicle and trailer while braking, to provide proportional power for a smooth, safe stop.

Manual override

The Spectrum brake controller also gives the driver advanced control over the vehicle-trailer combination, providing an easily accessible manual override. The rotary knob itself has a built-in push-button feature that manually applies the trailer brakes whenever needed to maintain full control over the towing setup.

Automatic leveling

With its smart braking operation, the Spectrum is easy to set up for any towing scenario, including a diverse combination of vehicles and trailers. It features an automatic leveling system and automatic calibration to eliminate time-consuming requirements during the setup process. It is able to operate two to eight trailer brakes at a time, making it a perfect fit for most vehicle-trailer combinations.

Product Description

The CURT Spectrum trailer brake controller provides powerful brake operation while maintaining a clean, consistent OE look and feel on the dash of your vehicle. It is comprised of a main module and a separate user interface. This interface is a simple rotary knob with a push-button and ten tri-color LEDs to control and monitor all trailer brake activity. It also features a triple-axis accelerometer for highly responsive, smooth stops on any grade. The separated module and interface of the Spectrum brake controller allow it to integrate with the vehicle unlike any other. The main module can be mounted behind the dash and completely out of sight. The separate rotary knob provides a sleek, subtle interface that mounts on the dash of the vehicle wherever desired. It features ten LEDs with three colors each (red, green and blue) to indicate trailer brake activity and power adjustment. The rotary knob and integrated push-button allow for simple and effective operation of the control settings and manual adjustment. The Spectrum trailer brake controller offers superior safety and helps protect the life of your vehicle and trailer with its advanced triple-axis accelerometer. This integrated circuit detects the motion of the vehicle and trailer when making stops and applies the precise amount of brake power for maximum efficiency and effectiveness. The three axes of the circuit also enable the brake control to compensate when going up or down a hill. Like most CURT brake controllers, the Spectrum installs using one of our vehicle-specific quick plug harnesses. It also has automated leveling and calibration capabilities to simplify and speed up the installation process. The Spectrum trailer brake controller comes with mounting hardware for a complete installation.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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CURT 51170 Spectrum Original Equipment Style, Integrated Electric Trailer Brake Controller, Proportional


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What's in the box

  • Brake Control
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.3 out of 5 stars
    4.3 out of 5
    644 global ratings

    Customers say

    Customers like the ease of installation using the hardware handle. For example, they mention it's super easy to install and add a level of safety necessary for towing. That said, some complain about the wiring and size. For instance, they say the wires are not connected to a connector and that the pin connector is very small. Opinions are mixed on fit and brightness.

    AI-generated from the text of customer reviews

    48 customers mention35 positive13 negative

    Customers like the performance of the brake controller. They mention it works fantastic, it takes up minimal space on the dash, and the braking algorithm seems to work well. Some say that the product is expensive, but it works the way they want.

    "...is the last you hear from me about this brake controller it means it worked great, if it does not work great i will be back to change my review" Read more

    "...It works perfectly, and is easy to adjust." Read more

    "Good product with an original equipment look in my 2019 Chevy Silverado 1500 Custom." Read more

    "...One of the wires was missing the pin connector. Soooo I couldn't get it to work. I'm going to try to fix the pin first...." Read more

    47 customers mention35 positive12 negative

    Customers find the installation of the hardware handle to be super easy and clean. They also appreciate the small footprint and the indicator lights that let them know the installation was successful. Overall, customers are satisfied with the ease of use and functionality of the product.

    "...factory, google should make all that easy, but overrall its super simple to install and super easy to use, i should be hauling a traile..." Read more

    "...Installation was pretty easy, just connect the 4 wires provided in the truck to a connector, mount the controller and test...." Read more

    "...+ parts to do it, so I bought this and gave it a go myself, the install was a breeze. The biggest challenge was just running the wires...." Read more

    "...I did not want the bulky box on my console. The instructions weren't as clear on how to ensure the plug wires needed to be inserted a particular..." Read more

    45 customers mention33 positive12 negative

    Customers like the quality of the hardware handle. They say it looks semi-factory, has a brilliant knob design, and works great. Some mention that the quality is good and the installation is clean. Overall, most are happy with their purchase and recommend it to others.

    "...The controller module hides away nicely, and this knob design is brilliant and looks factory. It works perfectly, and is easy to adjust." Read more

    "Good product with an original equipment look in my 2019 Chevy Silverado 1500 Custom." Read more

    "This unit has a very clean install appearance. I did not want the bulky box on my console...." Read more

    "...now I’m stuck with a nice looking very expensive controller that’s absolute junk." Read more

    13 customers mention4 positive9 negative

    Customers are mixed about the brightness of the hardware handle. Some mention that the lights are bright even on the dimmest setting, quiet bright at night, and an addition to your dash with nice lights to boot. However, others say that the LED lights are too bright at nights, even at the lowest level and mounted at the smallest point. Some customers also say that it lights up all the time, even with no foot on the breaks. They say the product needs lower light settings and the red brake LEDs always come on every time you brake.

    "...It also needs lower light settings, its way too bright even on its lowest setting. I finally had to paint over the bottom LEDs to darken them...." Read more

    "...Took a little while getting used to adjustments. Lights are bright. Even on the dimmest setting, quiet bright at night." Read more

    "...My only complaint/issue is that the red brake LED's always come on every time you brake, even without a trailer connected, and it's annoying at..." Read more

    "...3. It lights up ALL THE TIME...." Read more

    13 customers mention7 positive6 negative

    Customers are mixed about the fit of the hardware handle. Some mention it fits snugly, takes up minimal space on the dash, and works well. However, others say that it doesn't fit snug at the moment, the control knob is too large for the bezel, and the instruction manual is lousy.

    "I love the small footprint and how easy it is to use. The thing I really don't like is the self-assembly you have to do...." Read more

    "...The first problem I had is it wouldn’t adjust, I could push the knob in 10 times and out of those 10 times it would let me adjust the dial maybe once..." Read more

    "...Its actually much deeper and fits fine after drilling a hole for the screw...." Read more

    "...It doesn't fit snug at the moment, so thinking I may try to get some PVC sized tighter to really finish it off...." Read more

    11 customers mention0 positive11 negative

    Customers are dissatisfied with the size of the hardware handle. They mention that the pin connector and wires are very small and difficult to handle. Some customers also say that the wire connections are a nightmare and break easily.

    "...you need to push into the plastic pin connector and the pin connector itself are so small and flexible and you have to push them in really hard and..." Read more

    "...I will say the wires are very small and difficult to handle once you get more than 2 or 3 in their slots...." Read more

    "...sided tape, part #6, goes on part #5, base plate and is to small for the part and no holes in it...." Read more

    "...and resealed inside of box cardboard was wrinkled and torn up wiring hardshell was assembled so this item I received was a return sold for new...." Read more

    7 customers mention0 positive7 negative

    Customers are dissatisfied with the wiring of the hardware handle. They mention that the wires are not connected to a connector, not clear, and one of their wires was not properly soldered. The wiring doesn't allow part #3, the led rotary knob, to snap into part 5, base plate. They also mention that it's too bicky where the wire comes out and will not let dial click into base. Customers also mention the wiring was missing the pin connector.

    "...but does not have brake controller location and the wires are not connected to a connector...." Read more

    "...One of the wires was missing the pin connector. Soooo I couldn't get it to work. I'm going to try to fix the pin first...." Read more

    "...Instructions are not that clear and one of my wires was not properly soldered and broke. On the plus side, the support from Curt was outstanding...." Read more

    "...So the wiring doesn't allow part #3, led rotary knob, to snap into part #5, base plate...." Read more

    4 customers mention0 positive4 negative

    Customers are dissatisfied with the missing pieces in the hardware handle. For example, they mention the main module was missing upon delivery, and the accessories are subpar. That said, some customers are happy with the support provided.

    "I had to return the first one because it was missing pieces. Once we got all of it it was easy to install and works very well." Read more

    "Main module was missing upon delivery." Read more

    "Accessories are sub or but support is excellent...." Read more

    "Parts were missing some parts weren’t even like the pictures..." Read more

    Read the WIRING instructions carefully
    4 Stars
    Read the WIRING instructions carefully
    I went back on forth for about a week before I ended up buying this. I read a lot of the reviews. Most of the negative reviews talked about the difficulty with the small crimped wire heads and with some people experience LED lights while braking without a trailer hooked up. I forged ahead and processed the order. In terms of the small wire crimps with the black connector... I had watched the video online several times and scanned the manual briefly before starting. If you do buy this controller, READ THE WIRING instructions carefully. I had installed the wires the right way, but was holding the black receiver opposite of the written instructions. Ergo, it didn't work. I immediately got frustrated and blamed the part haha. I settled down and tried again. This time following the written instructions and voila it worked. I will say the wires are very small and difficult to handle once you get more than 2 or 3 in their slots. I'd recommend snipping the insulation back another inch or so to get some more flexibility. Once I got it hooked up, I took a spin without a trailer, and I too have lights flash when I brake w/o a trailer. I ran to the auto store and got a plastic cap from a spray can, that slides over the housing. It doesn't fit snug at the moment, so thinking I may try to get some PVC sized tighter to really finish it off. Sp far the brake light flashing hasn't been overtly annoying, but ive only driven with it for about 30 min last night and an hour this morning. Just figured I'd rather have a way to conceal those lights if it does get annoying.Overall I'm pleased with it so far. I hope to hook it up to a trailer in the next day or two and test out its function, but in terms of install... not that hard if you follow the instructions. Took about 90 min to do it wrong, then fix it and finish it up.
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    Top reviews from the United States

    Reviewed in the United States on February 16, 2021
    Customer image
    5.0 out of 5 stars Great product and looks factory on my 2008 Silverado
    Reviewed in the United States on February 16, 2021
    I was looking for a brake controller that didnt get in the way of my knees, old style brake controllers always annoyed me and just plain look bad, so when i found out about this brake controller from curt that only shows a remote knob, i figured i would try it, it is very expensive compared to other brake controllers, but its kinda a specialty for people like me who dont like normal brake controllers, so i was willing to spend the money, first off ill say everyone that had problems with the controller flashing when not in use almost made me not buy it, but i figured i would wire a on/off switch if i had that problem but it never happened to mine, I havent actually hauled a trailer yet, but i did connect to one just to see what happens, nothing different than when not connected, except when i unplugged the trailer i did get the flashing blue lights which mean the trailer was disconnected, those lasted about 10 seconds and then it returned to the normal mode, for my fellow 07-13 silverado owners thinking about buying this, just make sure you order the wiring harness adapter, its like $8 you wire it up to your trucks already pre existing brake controller wires under the dash and then it plugs directly into the module that comes with the brake controller, and then connect the 2 wires to the fuse box under the dash, they are already there from the factory, google should make all that easy, but overrall its super simple to install and super easy to use, i should be hauling a trailer soon, if this is the last you hear from me about this brake controller it means it worked great, if it does not work great i will be back to change my review
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    5 people found this helpful
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    Reviewed in the United States on February 2, 2021
    Reviewed in the United States on October 12, 2020
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    5.0 out of 5 stars Simple to install
    Reviewed in the United States on October 12, 2020
    I needed a brake controller for my Jeep JK to tow my camper, the shops around here were going to charge $750 + parts to do it, so I bought this and gave it a go myself, the install was a breeze. The biggest challenge was just running the wires. The controller module hides away nicely, and this knob design is brilliant and looks factory. It works perfectly, and is easy to adjust.
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    2 people found this helpful
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    Reviewed in the United States on January 18, 2024
    One person found this helpful
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    Reviewed in the United States on March 13, 2024
    Reviewed in the United States on October 28, 2020
    33 people found this helpful
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    Reviewed in the United States on July 3, 2020
    One person found this helpful
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    Reviewed in the United States on August 12, 2023
    One person found this helpful
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    Top reviews from other countries

    BuyingTooMuchStuff
    5.0 out of 5 stars Great for near factory installed look and operation.
    Reviewed in Canada on April 1, 2023
    One person found this helpful
    Report
    John Cunningham
    5.0 out of 5 stars Worked better than original
    Reviewed in Canada on October 23, 2023
    Terry McCutcheon
    5.0 out of 5 stars Easy to install and operate
    Reviewed in Canada on October 18, 2021
    2 people found this helpful
    Report
    Keyser Söze
    4.0 out of 5 stars very happy with the unit, but the colour coding is incorrect on the rotary pin out
    Reviewed in Canada on January 2, 2024
    Pierre-André
    5.0 out of 5 stars Looks and works great.
    Reviewed in Canada on May 15, 2021
    Customer image
    Pierre-André
    5.0 out of 5 stars Looks and works great.
    Reviewed in Canada on May 15, 2021
    This is the best brake controller that I ever owned. Easy to understand with the led lights around that will give you to info that you need. Looks great to, it almost looks like it is part of your vehicle. Very adjustable to different road conditions.
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    3 people found this helpful
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