Hopkins Plug-in Simple Brake Wiring Adapter - GM

Part Numbers: HM47795

Our Price: $20.06

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HM47795 - Plugs into Brake Controller Hopkins Brake Controller
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Hopkins Plug-in Simple Brake Wiring Adapter - GM
part number: HM47795

Why mess with wires and splicing, when you can plug it in? Designed to fit Hopkins Agility brake controllers, this wiring adapter will have you on your way in no time!


  • Includes 2 plugs
    • 1 Plug is inserted into the back of the Hopkins Agility Brake Control Unit
    • 1 Plug is inserted into the factory-installed port under the dash
  • Fits Hopkins Agility Trailer Brake Controller (HM47294), and Hopkins Reliance, Impulse and Brake-Force Brake Controllers


  • Compatible with Chevrolet / GMC / Cadillac / Hummer vehicles
    • 2002-06 Chevy Avalanche
    • 1999-06 Chevy Silverado
    • 1999-06 GMC Sierra
    • 2000-06 Chevy Suburban
    • 2000-06 Chevy Tahoe
    • 2000-06 GMC Yukon
    • 1999-06 GMC Denali
    • 2000-06 Cadillac Escalade
    • 2003-06 Hummer H2

You have a lot to think about when you are connecting a vehicle to a trailer or RV. Hopkins makes it easier with a vehicle-specific wiring adapter, designed to fit the Agility brake controller. Simply plug it in and go.

47795 Brake Control Connectors

California residents: click here

Video of Hopkins Plug-in Simple Brake Wiring Adapter - GM

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Trailer Brake Controller Installation - 2005 GMC Sierra

Today, on a 2005 GMC Sierra, were going to be installing Hopkins Flex-Mount brake control, part number hm47297. In conjunction with Hopkins direct fit brake control adapter which is part number hm47795.To begin our install, were going to mount the Flex-Mount display unit here in the center console. First, well remove the center console trays and route the wire up through the pre-drilled hole in there. Well follow the 12-volt power supply back down through the console. Then, well zip tie the wire to the 12-volt power supply wires to secure it in place, cut off the excess from the zip-tie and re-install the panel.Then, well secure the Flex display in place using double sided tape. Now, to install the Flex control system were going to mount it on the side of the center console, that way its easy to access all of the different controls as well as the manual override.

Before we tape it in place, were going to route the wire back behind the paneling and then to secure the flex control, just use double sided tape which is provided. To mount the smart box, were going to follow the manufactures instructions which say to mount it to the side of the center console and were going to use double stick tape here. Then, were going to connect the flex display and the flex control to the smart box. As you can see the connectors are two different sizes, then just plug them into the back of the smart box.Now, were going to connect the plug-in simple adaptor in the vehicles junction box. The first thing we have to do is remove the plastic nut and then pull the junction box cover off and before we plug the harness in, were going to have to connect the red wire.

On this particular adaptor the red wire does not come connected, its going to depend on your vehicle year as to where it connects.Using a test light, weve already determined that it will be in the top right for our application. Our harness is going to install in the top row, the port that is second from the left. Then, were going to put the cover to the junction box back in place and screw on the plastic nut. Then, you want to zip tie the harness in place here and were just going to follow the manufactures wiring, securing as you go. Tuck in the wires and clip all of the zip ties.

Then, well make the connection with the smart box. That completes installation of our Hopkins Flex-Mount brake control part number hm47297 and the Hopkins plug-in adaptor part number hm47795 on our 2005 GMC Sierra.

Customer Reviews

Hopkins Plug-in Simple Brake Wiring Adapter - GM - HM47795

Average Customer Rating:  4.8 out of 5 stars   (32 Customer Reviews)

Why mess with wires and splicing, when you can plug it in? Designed to fit Hopkins Agility brake controllers, this wiring adapter will have you on your way in no time!

- HM47795
by: Travis08/07/2018

Appears to be well made, leads are a good length, and the instructions are clear on where to locate the red wire by year, and the blue fork fits fine. The plug fits the location correctly, but I can't get the snap to engage to ensure it won't back out in the future. 550745


I have not had any issues with the plug backing out after a year.

Travis - 08/07/2019


- HM47795
by: Keith P05/14/2012

Great concept, ALMOST made the job a snap. The only problem was that the ground connector in the plug that snapped into the panel in my truck wouldn't make solid contact with the pin in the panel. After an hour of troubleshooting I just took the ground wire out of the connector and gave it a good ground, then it worked flawlessly. 40345

- HM47795
by: Robert09/02/2019
2002 Chevrolet Silverado

Product and instructions worked perfectly, installed in 10 minutes . Thanks Rob 696851

- HM47795
by: Roger08/16/2019
2000 Chevrolet Silverado

108260989 was delivered and performs flawlessly!!! Thank you Etrailer.com , one of many reasons I keep coming back to you! 690047

- HM47795
by: Ken06/24/2019
Chevrolet Tahoe

The connectors and the instructions provided were helpful the wiring harness fit perfectly with the tow package on the Chevy Tahoe. The installation video on the e-trailer web site was very helpful for the fuse installation in the engine fuse box. 662180

- HM47795
by: Paul11/08/2018

5 star rating. makes installation a snap. two screws to mount the controller and then plug in the harness and your ready to go. No splicing wires or adding wire ends. Just PLUG and PLAY !!!! 581293

- HM47795
by: Peter07/22/2018
1999 Chevrolet Silverado

This part made it so much better and easy to do thank u . 544613

- HM47795
by: Harry07/12/2018

Worked out good 540715

- HM47795
by: Justin E12/29/2017

Fast shipping, and works perfectly. My agility brake controller didn’t have a plug, so I had to do some splicing, but still super easy install as well. 463644

- HM47795
by: Dennis11/15/2017

Came in in a good package and was as l isted 452329

- HM47795
by: Exactly what we needed06/26/2017

The part was easy to order, reasonable shipping rate and came in a timely fashion. 399300

- HM47795
by: Dustin K05/25/2017
2013 Chevrolet Silverado

I have a 2013 chevy Silverado and needed a brake controller. I was told to check out etrailer and found exactly what I needed. The staff at etrailer was helpful friendly and knowledgeable and the product works great!!! I highly recommend etrailer for all your trailering needs!!! 384822

- HM47795
by: Perry04/11/2017

Just what I needed 365695

- HM47795
by: Jake R06/15/2016

We replaced our old brake controller with this one. We are very pleased with the product. Seems to allow easier stopping of truck and trailer. We pull a fifth wheel and before this product thier was a lot of bounce between the Fifth Wheel and truck. 261463

- HM47795
by: Ray05/26/2016

Product works as it should. 251980

- HM47795
by: RICK06/29/2015


- HM47795
by: Ken A06/15/2015

The parts fit and functioned as advertised. Installation was so easy, I thought I had missed something! 203576


Everything works great, thanks for asking

Ken A - 07/08/2016


- HM47795
by: Preston04/11/2015

It was exactly what I needed and figuring how to attach was easy. 184757

- HM47795
by: Jeffrey b04/09/2015
2002 GMC Yukon

excellent 184531

- HM47795
by: Nick D12/30/2014

Only place i ever shop for trailer needs. Great website, quality parts shipped fast. Highly recommend. Thank you for being one of the few companies around that still care about quality and the customer. Thanks again... 167250

- HM47795
by: Jim C06/25/2014
2011 GMC Sierra

I bought the Hopkins Brake controller and haven't had the chance to use it yet but in a few weeks I will have a camper in tow. I bought the wiring adapter for my 2011 GMC Sierra WT w/ tow package but didn't realize until I tried to install it that GMC stopped building an available receptacle under the dash after 2007. I still had to buy pins from Radio Shack in order to make the wiring adapter compatible with my truck but with a little ingenuity I was able to get it all installed. 137691

- HM47795
by: Tim S.05/04/2014

Made my installation easy and quick. Don't argue with me just buy it. It's the right way to install you controller. 128796

- HM47795
by: otis03/07/2014

Fast shipping, service quick Thanks 119784

- HM47795
by: JB 03/05/2014

Great doing business with etrailer!! Service was excellent and shipping was unbelievable. Received package exactly when they said it would arrive. Could not believe how fast shipping was and how Stephen handled my order. Will deal with them time and time again! 118592

- HM47795
by: Tom10/21/2013
2004 Chevy Suburban

Etrailer sent this product quickly and inexpensivly to me. It'll be used to control the brakes on my utility trailer. It took seconds to install and is a much more of a quality installation than splicing wires on a 2004 Suburaban. 104609

- HM47795
by: Adam01/18/2013

Fast shipping. This adapter plugged right into my vehicle and saved me a tremendous amount of time wiring the brakes for my trailer. 63469

- HM47795
by: Todd01/17/2013

I was able to get exactly what I needed...and at a very reasonable price. The options for shipping was good...and I was able to get it in a timely fashion. I'll shop with them again. 63367

- HM47795
by: JR09/29/2012
2002 Chevrolet Suburban

Arrived as per schedule. Easy to read and understand instructions. Easy to install. Tested and works as expected. 56123

- HM47795
by: Tom LeMieux09/12/2012


- HM47795
by: MB05/01/2012
2002 Chevrolet Tahoe

Took 10 minutes to install. Works grea t. 39002

- HM47795
by: Adam Walker03/25/2012

Fast delivery. Product matched perfect. 35073

- HM47795
by: Don02/14/2011

I bought this adapter along with a Agility brake controller, and I had both items installed within 15 mins. If you are buying a brake controller than I would buy one of these adapters to make install a breeze. 7163


Ask the Experts about this Accessories and Parts
Do you have a question about this Accessories and Parts?

  • Parts Needed to Install a Brake Controller on a Chevy Colorado
  • A plug-in brake controller wiring harness is not available for the 2005 Chevy Colorado. The vehicle requires a hardwire method to install a brake controller using a 4-Way trailer connector, if needed, # 118301, and a 4 and 7 Way Installation Kit, # ETBC7. If your truck already has a factory installed 7-Way, you will still need to do some hardwiring. You will need brake controller installation kit # 5506. With the included wire, you will connect the white wire in the install kit to the
    view full answer...

  • Impulse Trailer Brake Controller Shows Inconsistent Display and Can Not be Set to 30
  • The first thing I recommend is to engage the manual override on full and then let it snap back into place. Do this several times to clean out the contacts inside the controller. Next, make sure that the trailer and vehicle side connectors are clean and free of corrosion. Corrosion can build up in the connectors but also behind them where the wires connect. There could also be a problem with the trailer brake magnets. I have included a link to an FAQ article that covers how to test the
    view full answer...

  • Wiring Harness Needed to Install Impulse Trailer Brake Controller in 2005 GMC Sierra 2500HD
  • You will need to get the proper wiring harness to install a brake controller on your 2005 GMC Sierra. Otherwise you would have to do a lot of unnecessary hardwiring that could easily be avoided using the appropriate connector. If you have a Hopkins brake controller use # HM47795. The wire functions on the controller are white for ground (connects to negative battery terminal), black for 12 volt power (connects to positive battery terminal via a 20 or 30 amp circuit breaker), blue
    view full answer...

  • Which Brake Controller Wiring Harness Fits a 1997 Ford F-150
  • If your 1997 Ford F-150 came with a factory 7-Way or 4-Way then you can use the brake controller wiring adapter # 3035-P for Tekonsha brake controllers, or # HM47715 for a Hopkins brake controller. I have included a link to the installation details for the Hopkins and Tekonsha harnesses for you to view.
    view full answer...

  • Correct Brake Controller Plug-In Harness For 2009 GMC Sierra SLE w/ Factory Tow Package
  • On your 2009 GMC Sierra that is equipped with a tow package, the wiring to install a brake controller is already ran from the factory and a plug-in adapter is not needed. You will find a bundle of wires below the dash to the left of the brake pedal. The wires should be taped up and tucked up and out of the way. There should also be a label on the tape of the functions of each wire.You will want to connect these wires to the wires coming out of the back of the brake controller (see FAQ). On
    view full answer...

  • Hopkins Trailer Brake Controller Does Not Work with Brake Pedal on a 2003 Chevy Silverado
  • The wiring harness, # HM47795, for a 2003 Chevy Silverado, comes with a loose red wire that you will need to place in the connector yourself in the correct location. This red wire senses when you are stepping on the brake so the brake controller can send power back to the trailer. The manual override works independently of the brake pedal so that is why it works. It looks like the red wire should be directly to the left of the blue wire (if the blue wire is at the bottom of the connector).
    view full answer...

  • No Power to Trailer Brake Controller on a 2004 GMC Sierra 1500 with OEM Tow Package
  • Just to make extra sure, the red wire should be directly next to the blue wire on the harness. The black wire should be above (or below depending on how you are holding the connector) the blue wire. And the white wire should be in the opposite corner from the blue wire like in the picture I have included. When plugged in, the black wire should have 12 volt power. If it does not then you will check the under hood connections and make sure the corresponding fuses are in the right places
    view full answer...

  • Installing a Brake Controller on a 2013 Chevrolet Silverado 1500 z71
  • GM stopped using the plug-in style brake controller connectors after 2007 so there will not be a plug-in port for a brake controller adapter on your truck. Instead, there will be 4 or 5 blunt cut wires taped together under the left side of the instrument panel. These wires can sometimes be difficult to locate, but you should be able to find them near the left side of the steering column. You should see a white wire (ground), dark blue wire (brake output), red wire with black stripe
    view full answer...

  • How to Wire a CHMSL on a Cap/Camper Shell on a 2010 Chevy Silverado 1500
  • Yes, the orange wire that you found in the bundle of wires near the brake pedal is the correct wire to use as the power wire for the light on your canopy. You are also correct about the white wire being the ground wire. You will also have to connect the two wires under your hood so your tow package will be functional before the center high mount stop light will function on your 2010 Chevy 1500. I attached an FAQ article on how this is done for you to check out.
    view full answer...

  • Function of Manual Override Switch on Brake Controller
  • The manual override switch is used to operate the trailer brakes independently of the tow vehicle brakes. This feature is primarily used in the initial set-up of the controller, but the manual switch can be used anytime a gentle brake input is needed, such as correcting minor trailer sway, testing the brakes or when hitching a 5th wheel or gooseneck trailer. Operating the manual switch will usually activate the trailer tail lights, but this can vary according to manufacturer. If you
    view full answer...

  • Red Wire Pin Location on Hopkins Brake Controller Harness for Chevy/GMC Trucks
  • The red wire is not supposed to be in the block on the harness when it is packaged. Hopkins leaves this last wire out so that the same part can be used for multiple model years. The end user needs to determine which slot it belongs in before the brake controller is hooked up. The pin location for a 2006 is different than for a 2002. For your 2006 model, the red wire should be in pin location D as shown in Fig. 4 of the directions that were shipped with the harness. Since you had inserted
    view full answer...

  • Hopkins Brake Controller Not Receiving Power 2000 Chevy Silverado 1500
  • Its sounds to me like you may have connected the power (red) wire on the Hopkins Plug-in Simple Brake Wiring Adapter part # HM47795 into the wrong circuit. The red wire will need to be installed into the pin that has power when the brake pedal is depressed. There are only three open spaces on the pigtail in which the pin can be connected to so you will only need to test these corresponding location on the the vehicle's control panel box. You can use a circuit tester like part # 40376 to
    view full answer...

  • How to Install the Hopkins Impulse Brake Controller on a 2009 Chevrolet Silverado
  • From 2007 to 2013, GM trucks did not use plug-in style brake controller wiring. Instead, they had 4 (sometimes 5) blunt cut wires bundled up under the drivers side dash. The bundle should have a white tag that lists the functions of each wire. I have attached a help article that explains how to install a brake controller on your truck. I have also attached an installation video on a 2009 Chevrolet Silverado for you to check out. The brake controller in the video is different from your Impulse,
    view full answer...

  • How to Wire a Trailer Brake Controller on a 2009 Chevy Avalanche
  • The 2009 Chevy Avalanche will not have a port for a brake controller wiring harness. Starting with the 2007 model year, GM stopped provided a port. instead they have included the wiring only which is located under the dash. If you look under the steering column to the left, there should be a bundle of wires held together with a white tag. The tag should also list the wiring functions on it. You can verify the functions using a test light, # 3808. Based on the listed functions of the
    view full answer...

  • How to Wire in a Brake Controller in a 2004 Chevy Silverado
  • The Hopkins Plug-in Simple Brake Wiring Adapter # HM47795 should have the red wire run to the pin right next to the blue wire closest to the clip side of the connector. See the picture I attached. The blue wire you found under the hood of your truck needs to be run with a length of 10 gauge wire like part # 10-1-1 (sold by the foot) to the rear of your truck to the brake output circuit of your 7-way. You will need to cut the connector off of the end of the blue wire to do this. I
    view full answer...

  • Troubleshooting Hopkins Impulse Brake Controller That Causes Brakes to Always Lock
  • There is some troubleshooting you can do but it could also be that the Hopkins Impulse 47235 you have is shot. Test the connection of the red wire (stop light switch) and also take a look at your connectors for corrosion and ensure you have good grounds. If your controller does need to be replaced I strongly recommend going with a proportional controller which will provide you with better braking overall. The best option is the Prodigy P3 # 90195 because of its reliability, effectiveness
    view full answer...

  • What Do I Need to Install a Brake Controller on my 1992 Chevy Silverado
  • The 1992 Chevy C/K Series 1500 did not come with a port for a brake controller. Instead, you will need to hard wire the brake controller by first installing a 4-Way, # 118315, and then installing a 7 and 4 Way Installation Kit, # ETBC7. If the Truck already has a 4-Way, then you will not need the 118315. I have included a link to the installation details and a video below showing installation of an ETBC7 kit. If your truck already has a functioning 7-Way, you can use a length of wire
    view full answer...

  • Hopkins Plug in Simple Brake Controller Wiring Harness Installation on a 2001 Chevy Silverado Z71
  • Installation of the Hopkins Plug-in Simple Brake Wiring Adapter - GM, item # HM47795, requires that the red wire, that is left loose to accommodate different year model Chevrolet wiring, be inserted in one of two positions. Your truck will require that the red wire be installed in slot A on the connector, which is the correct position for 1999-2002 Chevrolet vehicles. Slot A is the top right position with the connectors blue locking tab up and the side the wires go into is facing you. For
    view full answer...

  • Parts Needed to Install an Impulse Trailer Brake Controller on a 2001 Chevy Silverado 2500
  • In order to install your Impulse brake controller on the 2001 Chevy, you will need to use the wiring harness # HM47795 that you have referenced. You will need to make sure that you place the red wire in the correct location. I have included a link to the installation details and a link to a drawing that shows where the red wire goes. If the truck did not come with a 7-Way wiring harness, you will need to add one using # PK11898 or, if there is a round plug with a cap above the spare
    view full answer...

  • No Power to the Brake Controller Wires Under the Dash on 2010 Chevrolet Silverado
  • General Motors quit offering the plug-in type connectors on 2007 and newer full size trucks and SUVs with a factory tow package. These models have four (possibly five) blunt cut wires under the left side of the instrument panel to the left of the steering column. The wires can be identified by a white label and the color of the wires. The wire colors are (1) Red/Black wire, (1) White wire, (1) Light Blue/White wire and (1) Dark Blue wire and possibly (1) Orange wire. There are two wires
    view full answer...

Info for this part was:

Expert Research:
Michael L
Expert Research:
Sarah L
Expert Research:
Robert G
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Reno H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Video by:
Joshua S
Test Fit:
Nicholas E
Video Edited:
Andrew L
Updated by:
Alexander C

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