1. 12V Power Accessories
  2. Roadmaster
  3. Power Socket
  4. 1 DC Outlet
12 Volt Outlet Kit, 20 amps

12 Volt Outlet Kit, 20 amps

Item # RM-9332
lowest price pledge
Retail:$46.45
Our Price: $22.39
You Save: 52%
12V Power Accessories
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.52 lbs
Quantity: 
In Stock
RM-9332 - 1 DC Outlet Roadmaster Power Socket
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Call 800-298-8924 to order Roadmaster 12v power accessories part number RM-9332 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for 12 Volt Outlet Kit, 20 amps. 12V Power Accessories reviews from real customers.
  • All Info
  • Reviews (58)
  • Q & A (538)
  • Videos (29)
  • Photos
  • Why etrailer?

Roadmaster 12V Power Accessories - RM-9332

  • Power Socket
  • 1 DC Outlet
  • Roadmaster


Kit creates a 12 volt power outlet with 20 amps of power
  • 5' of wire included to reach battery


9332 12 Volt Outlet Kit, 20 amps

Installation Details RM-9332 Installation instructions



Video of 12 Volt Outlet Kit, 20 amps

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




Video Transcript for Roadmaster 12 Volt Outlet Kit Review

Speaker 1: Today, you'll be having a look at the Roadmaster 12 Volt Outlet Kit. Part number: RM-9332. This is great for supplemental breaking systems that need to have a constant source of power, such as ones that are portable that you plug in and remove from the car, and you can swap between vehicles. Those typically need a 12 volt outlet in order to work properly. A lot of vehicles out there such as this one, when the key is not in the ignition the factory power outlet doesn't have any power going to it, so you won't be able to use it properly when your vehicles in tow mode.Our 12 volt outlet, has a built-in fuse holder in the wiring harness. It already has a fuse pre installed.

This is great so if you have an overload situation, you don't want to worry about your wires getting overheated and potentially causing electrical fire. The fuse will blow, protecting your device and your vehicle.We have a 20 amp fuse inside of our fuse holder. What that will allow us to do is plug in most accessories that are rated for up to 20 amps. So we don't have to worry about not having enough power in order to run them properly.We have a five foot wiring harness from the end of the outlet to our fuse holder, and our negative side of the terminal is, this gives us adequate distance to get to either a fuse box or a vehicle's battery.The kit comes with a mounting bracket so we can locate our socket and any location, which is convenient for us. It comes with three self-tapping screws, one which you can use for your ground, and two to mount the bracket.

The kit also comes with a fuse tap, where you can insert into your fuse box and power the positive side of the fuse holder. This is optional to use, it just depends on which application you like to use. You can go in your fuse box, or go directly to your battery, whichever way you prefer to do it.That completes your look at the Roadmaster 12 Volt Outlet Kit. Part number: RM-9332.


Customer Reviews

12 Volt Outlet Kit, 20 amps - RM-9332

Average Customer Rating:  4.4 out of 5 stars   (58 Customer Reviews)


- RM-9332
by:

Perfect. Great installation video. Works as advertised. 566685



- RM-9332
by:

Except for bracket holder which did not work very well and was not explained very well on how to use it. The product itself worked well operating my add on electrical defroster 441590


Comments
Product worked well except for bracket holder when plugging in the socket would move. Had to add a hose clamp to keep it in a useable postion
Ray H - 10/17/2018

44734

- RM-9332
by:

Ok 894163



- RM-9332
by:

What I ordered 899183



- RM-9332
by: 08/29/2020

870943



- RM-9332
by:

Great assistance figuring out what was needed and products have been working as needed for a year now. 857779



- RM-9332
by:

Arrived on time as advertised. 831090



- RM-9332
by:

Good quality and easy to install on my 2012 Jeep Liberty to power my even brake unit 803432



- RM-9332
by:

The Great wire and toilet paper famine of 2020. Installed this on a 2020 Jeep Wrangler Unlimited Sahara. Could the manufacturer splurged for may one more foot of wire on the negative connection? I had to mount the adapter very close to the cabin grommet hole just to have enough room to make the negative wire attachment to the battery. Positive/fuse cable is long enough for my Jeep. 802800



- RM-9332
by:

This is a nice unit except the brass fuse connector is not the right size for the plug in of the power cord and does not stayed plugged in and pulls out very easy. If the connector was the right size it would stay in better. The bracket you get is worthless for a Honda CRV, no where to really mount it. 772349



- RM-9332
by:

Quick delivery! Great advice & guidance about products needed ! Would use again !!! 745182



- RM-9332
by:

Great device. Gives that much needed HOT accessory socket inside the car for the braking system and when not towing, other accessories that you want to dtay connected to the battery when the ignition is switched off. (inverter for a laptop or tablet charger for instance or even a small TV.) Could be a little less expensive but it IS a higher amperage socket than you can find at the local car parts store. Quick and easy install. Recommend wire loom around the wires to protect them from wear in the engine compartment 735184



- RM-9332
by:

Have started installing them and they work well . My only complaint is the ground connector could have a little larger hole. 673900


Comments
Working fine .
Kenneth W - 07/23/2020

94939

- RM-9332
by:

The video made the install super easy. 664812



- RM-9332
by:

Works fine but I couldn't use the brack et. 651058



- RM-9332
by:

Easy install and a quality product 649530



- RM-9332
by:

The 12 volt accessory plug worked great. Very easy to install, easy to follow instructions. 616616



- RM-9332
by:

Great Product 601383



- RM-9332
by:

Great, friendly service! Prompt service. Excellent price. Price matched on one item. Every item included in my rather large order. Will definitely use etrailer again. Appreciate pictures and information on each item. 596753



- RM-9332
by:

The electrical socket outside diameter is much larger than the hole in the bracket. It does not fit, not even close. So the electrical socket can’t be mounted in the provided bracket. It is junk. 582177



- RM-9332
by:

Simple and effective. 578649



- RM-9332
by:

Very impressed with item. It has everything you need to add a 12 volt outlet that is on continuously. The fuse tap was easy to apply. Took about 20 minutes to install. 547168



- RM-9332
by:

I suppose this would serve its purpose of providing power from the battery if I was going to use it. It is to be mounted inside the vehicle, but it doesn't come with a cap or cover for the socket when it is not in use so it won't be installed and used at all. 522118



- RM-9332
by:

Great product. Easy to install. Using this hook up to power my Blue Ox Patriot Brake System. Can also use as an extra power outlet for cell phones and iPads. Fast delivery. 502888



- RM-9332
by:

Product was received on time and in good order. Would recommend this vendor to anyone. 498246


25
59
Show More Reviews

Ask the Experts about this Roadmaster 12V Power Accessories

  • How To Power the Blue Ox Patriot 3 Braking System On a 2020 Jeep Wrangler
    The Roadmaster 12 Volt Outlet Kit part # RM-9332 is an excellent option to use on a 2020 Jeep Wrangler Unlimited with the Blue Ox Patriot 3 Portable Braking System part # BRK2019. The outlet kit attaches directly to the battery so there wouldn't be any issue using this alongside any other harness. Please note, the Mopar Performance Flat-Tow Harness is no longer needed for the 2020 model year. I have attached some other parts you might want to consider below: Roadmaster Direct-Connect...
    view full answer...
  • Does Blue Ox Patriot Supplemental Braking System Require Battery Disconnect for 2018 Jeep Wrangler
    The Blue Ox Patriot supplemental braking systems do not require a battery shutoff system for your 2018 Jeep Wrangler. The only thing they require is the 12 Volt Outlet Kit # RM-9332. This is true for both the Blue Ox Patriot 2 # BRK2016 you mentioned as well as the Blue Ox Patriot 3 # BRK2019. Both will work for your 2018 Jeep Wrangler, with the difference in systems being that the latest version - the Patriot 3 - will continually and automatically monitor the brake pressure. I've...
    view full answer...
  • How Does the 12 Volt Outlet Kit # RM-9332 Wire to a Vehicle
    This 12 Volt Outlet Kit, part # RM-9332, is designed to be wired directly to a battery and then has a 5 foot range of wire. Basically, as long as its run to a battery you can run it anywhere in a 5 foot range of that battery. Traditionally this product is used to power a Roadmaster Even Brake Portable Proportional Braking System, part # RM-9400.
    view full answer...
  • How to Keep the Blue Ox Patriot III # BRK2019 from Depleting Towed Vehicle Battery
    The 12 Volt Outlet Kit # RM-9332 is installed on the vehicle being towed. If you think you will be doing a good amount of braking with the Blue Ox Patriot II # BRK2016 and you don't plan on stopping and letting the engine run for a little then the Patriot could cause your battery to get pretty low. To combat this I recommend installing the Flexo-Coil Wiring Kit # RM-15267 and then connecting the Charge Line Kit # RM-156-25 from the center pin of the 6-Way connector to the battery on...
    view full answer...
  • How to Power Blue Ox Patriot When Vehicle Has to Have Battery Disconnected
    We have a product designed exactly for your application. What you need is the part # RM-9332. This wires directly to the battery of the vehicle and gives you an outlet to power the Blue Ox Patriot part # BRK2016. This way you can have your vehicle battery disconnected and still power the brake system.
    view full answer...
  • 12 Volt Accessory Outlet Needed to Power the Roadmaster Even Brake on a 2013 Honda CR-V
    I recommend installing a separate 12 volt accessory outlet. For this, you can use the Roadmaster 12 Volt Outlet Kit, # RM-9332. This kit works great for vehicles that require fuses to be pulled. The 5ft cord should provide plenty of length to route the outlet into the cab of the vehicle. The outlet can be connected directly to the vehicle battery or to a powered fuse using a fuse tap.
    view full answer...
  • How to Power the Blue Ox Patriot While Flat Towing a 2020 Jeep Gladiator
    To use the Blue Ox Patriot 2 # BRK2016 in your 2020 Jeep Gladiator you'll want to use the 12 Volt Outlet Kit # RM-9332, which is designed to provide a working 12v outlet in vehicles that do not have a powered 12v outlet during flat towing. I've linked an installation video of this for you to have a look at that will detail the process.
    view full answer...
  • How Does Blue Ox Patriot Draw Power From Vehicle with Disconnected Battery
    What you'd need is the part # RM-9332. This is a 12 volt socket that get wired directly to the vehicle battery so that when you disconnect your battery your Patriot # BRK2016 has an outlet it can draw power from the battery through.
    view full answer...
  • Can Brake Controller be Used for Braking on Vehicle Flat Towed
    Brake controllers can't activate the brakes of a vehicle being flat towed so you will have to look into a supplemental braking system. Some do require power to operate and on vehicles that also require the battery be disconnected the solution is to use an outlet kit like part # RM-9332 which wires to the battery and then gives an outlet. And finally, most states now require supplemental braking in the vehicle being flat towed. The easiest system to set up and use is the Blue Ox Patriot...
    view full answer...
  • How to Power Supplemental Braking on Vehicle that Battery Gets Disconnected
    That's a very good question. The part # RM-9332 is designed for this exact situation. What it allows you to do is disconnect the battery for the vehicle but then with it wired up you are left with a 12 volt accessory connector that is active with the vehicle totally disconnected.
    view full answer...
  • How to Power Supplemental Braking System for Flat Towing a Vehicle Where Battery Gets Disconnected
    For supplemental braking systems that power through a cigarette lighter outlet installed on vehicles where either the battery has to be disconnected or the fuse for the outlet gets pulled the solution is to install an outlet kit like part # RM-9332. This attaches directly to the battery of the vehicle so that it can provide power for the braking system when your fuse is pulled. We recommend this frequently for GMC Terrains like yours for powering the supplemental braking.
    view full answer...
  • Can the 12 Volt Outlet Kit # RM-9332 be Installed in a 2013 Toyota Sienna
    The 12 Volt Outlet Kit # RM-9332 that you referenced is a universal fit item that can be installed in virtually any vehicle including your 2013 Toyota Sienna. All you need to do is find a circuit in the fuse box of your vehicle that has power to it even when the ignition is off and this kit will install easily. To see how it installs in a similar vehicle as yours check out the install video I attached. If you wanted to install this as an extension to a current cigarette lighter accessory...
    view full answer...
  • How to Power Blue Ox Patriot II Supplemental Braking System Vehicle That Battery Disconnects
    For vehicles like yours where they recommend disconnecting the battery to flat tow what you'll need is the 12 volt outlet kit part # RM-9332 to power the Blue Ox Patriot II part # BRK2016. What this does is run an outlet directly from the vehicle battery so that while your vehicle is disconnected from the battery the outlet still has power.
    view full answer...
  • How to Power the Blue Ox Patriot When Flat Towing a 2018 GMC Canyon 4x4
    Good question. Since GM requires the battery be disconnected to flat tow your 2018 GMC Canyon you need to add an additional 12 volt outlet that connects directly to the battery. That's what part # RM-9332 is specifically for. I've linked an install video on a Silverado. It's a universal part so the install is basically the same. We also have a battery disconnect, part # RM-766, which you can use to make disconnecting and reconnecting the battery easier. There's a linked video of...
    view full answer...
  • How to Power Blue Ox Patriot Braking System When Vehicles Negative Battery Cable Is Unhooked
    No sweat! You'll just need to install a 12-volt outlet kit, part # RM-9332. The socket would be located under the dash, so you can easily locate it to plug in the Patriot. The outlet would wire directly to the vehicle's battery. Each time you stop during the day, you'll want to start the motor of the Fiesta for a few minutes to ensure the battery remains charged. The installation procedure is pretty simple as you can see in the video I've linked for you.
    view full answer...
  • Troubleshooting Power Connection With Blue Ox Patriot on 2011 Honda CR-V
    If your power connection with the Blue Ox Patriot III BRK2019 supplemental braking system is spotty it likely isn't the plug on the system. To use this system you do need to use 12 Volt Outlet Kit # RM-9332 in order to ensure a constant 12 volt power source, which is what I'm guessing the issue is. I'm not certain which plug you are referring to but you should not use any generic parts; I have added a link with each of our available replacement parts for Blue Ox supplemental braking...
    view full answer...
  • How to Power Blue Ox Patriot Braking Kit on Vehicle Where Battery Needs to be Disconnected
    What you need is the outlet kit from Roadmaster part # RM-9332. This wires directly to the vehicle battery so that when you disconnect the vehicle from the battery this is still connected giving you the 12 volt power that you need for your Blue Ox Patriot braking system part # BRK2016.
    view full answer...
  • Powering Blue Ox Braking Buddy on 2016 Ford F-150 that Cuts Off Power Supply When Flat-Towing
    You can get around this feature of the Ford F-150 by installing a power outlet like # RM-9332 directly to your truck battery and plugging the braking system into it. To provide a maintenance charge to your battery and prevent the braking system from quickly draining it, you can also run a charge wire such as the Roadmaster Battery Charge Line Kit for Towed Vehicles, # RM-156-25. This kit maintains the battery charge in your towed vehicle during towing using the 6-way or 7-way plug at...
    view full answer...
  • Recommended 12 Volt Outlet Kit For Brake Pro Wireless System
    If you have a new Brake Pro you would have the wireless transmitter and receiver in the package, but I have a solution that will work great for you. I recommend the 12 Volt Outlet Kit, part # RM-9332. This is a kit that bypasses the cigarette lighter in the vehicle by attaching to the battery directly. It has a plug on the other end and you plug the Brake Pro into that.
    view full answer...
  • Blue Ox Patriot Supplemental Braking System Power Draw
    The Blue Ox Patriot II # BRK2016 has a 2 amp max draw on your 12v power. The Blue Ox Patriot 3 # BRK2019 has that same 2 amp max. It keeps the internal battery charged so you have function if the main battery fails. For your vehicle battery to fail, there must be another draw on your battery. My recommendation for you is to use a 7-way to 6-way connection like the Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 6-Way Round # HM47054 if you don't already...
    view full answer...
  • What Two Fuses Need to Get Pulled to Flat Tow 2014 Honda CR-V
    When it comes to the procedure for a specific vehicle for flat towing you have to go with what the manufacturer recommends. Either by what's in the owners manual or by contacting the manufacturer of the vehicle. Based on what you listed you would need to leave the ignition in ACC mode and the two fuses you mentioned of 19 and 20. We actually had the chance to install the # RM76512 on a 2014 Honda CR-V just like yours and I attached an install video that shows which fuses had to be bypassed.
    view full answer...
  • How to Use Supplemental Braking on a Vehicle Where Battery is Disconnected
    From what I have found in my research, to flat tow the vehicle the ignition key must be turned to the first or accessory position. This is so the steering wheel unlocks. Even with all accessories in the vehicle switched off, this creates sufficient draw on the battery to discharge the battery gradually while towing. After around 5 hours, the battery will not have enough charge to start the vehicle. I recommend using the Roadmaster 12 Volt Outlet Kit, part # RM-9332. This attaches to...
    view full answer...
  • Parts Needed to Add Second Battery and 12V Outlets to Bed of Chevy Silverado
    To add an additional battery in your 2002 Chevy Silverado I recommend adding the Redarc Smart Start Isolator # 331-SBI12D in-line between the truck's start battery and the auxiliary battery. This will transfer power in either direction to maintain the charge on both batteries. Then to add 12V outlets to the bed you can use the Roadmaster # RM-9332 and run the wiring up to the Silverado's battery using 12 gauge wire # 12-1-1 (sold by the foot), butt connectors # 05732-2, a 12 gauge fuse...
    view full answer...
  • How to Power Supplemental Braking System of Vehicle If Battery Has to be Disconnected
    For vehicles that have to have the battery disconnected when flat towing the solution for powering a supplemental braking system is the outlet kit part # RM-9332. This wires to the battery directly which allows you to get a power source for just the braking system while leaving the rest of the vehicle wiring turned off.
    view full answer...
  • How to Hardwire a 12 Volt Accessory Outlet in a Truck Bed
    Only a 7-way trailer connector will have a 12 volt power wire ran to the connector. A 4-way trailer connector will not have a constant 12 volt power wire. As long as the 12 volt power wire running to the 7-way trailer connector is rated for the amperage required for your 12 volt accessory outlet then yes, you can use this wire for powering the circuit. Depending on how the vehicle is set up, your trailer connector may or may not still have power while the vehicle is off. To test this...
    view full answer...
  • How to Power Braking System for 2017 Ford Focus Where Battery Has to be Disconnected
    The part # RM-9332 is designed for the exact scenario you described. It connects directly to the battery and provides a 12 volt power circuit that is active even when the battery of the vehicle is disconnected.
    view full answer...
  • Availability of 12V Power Outlet with Mounting Options
    We do not offer a mounting bracket for the Roadmaster 12 Volt Outlet Kit # RM-9332 and none is included but we do have a similar hardwired 12V outlet product that does allow for surface mounting in the location of your choosing, part # HM55115. Please refer to the linked video for more on this item.
    view full answer...
  • Recommended 12 Volt Accessory Socket Rated For 30 Amps or More
    For a 12V socket with fuse, I recommend the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly, # HM55115. This socket will allow for a larger fuse if you upgrade the 14 gauge wire to 10 gauge like # 10-1-1. This will take some customizing as these 12V systems are typically made for 20 amp capacity. You will add the red wire to the battery and use the inline fuse assembly and then attach the white wire to ground. I've attached a review video as well as an installation video...
    view full answer...
  • Installing Roadmaster 12 Volt Outlet Kit to Rear Cargo Area of Subaru Outback
    The 12 Volt Outlet Kit, 20 amps # RM-9332 will work just fine with you adding a longer wire to your battery. I recommend # 12-2-1 sold by the foot along with butt connector # 224775 or heat shrink connector # DW05745-5 for a better weather seal if needed. I recommend connecting directly to the battery and not at the fuse box. You will also want to make sure you leave the fuse in a location that is accessible if you need to replace at some point. I've attached some videos and an article...
    view full answer...
  • Installing A 12V Outlet For Running A Portable Refrigerator In SUV
    To run your portable fridge in your SUV, I recommend you use the Roadmaster 12 Volt Outlet Kit, 20 amps # RM-9332. This will connect directly to your battery and will then help your smart alternator to kick in as needed. You may want to consider using # 12-2-1 for any wiring length you need to add.
    view full answer...




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality 12v power accessories for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate 12v power accessory information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Test Fit:
Joe V
Test Fit:
Nicholas E
Test Fit:
Randy B
Test Fit:
Jared G
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Test Fit:
Robert C
Test Fit:
David F
Test Fit:
Ryan G
Test Fit:
Clayton O
Expert Research:
Mike L
Expert Research:
Patrick B
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Video by:
Andrew K
Video by:
Kathleen M
Video by:
Alan C
Video by:
Jonathan Y
Video by:
Jacob H
Video by:
Aidan B
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Andrew L
Video Edited:
Dustin K
Video Edited:
Sue W
Video Edited:
Chris R
Installed by:
Cole B
Updated by:
Hannah L
Updated by:
Isabelle B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.