Product Experts Available Now!
Call 1-800-940-8924
12 Volt Outlet Kit, 20 amps
(413 reviews)
Price: $43.98
In Stock
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.
Need help with installation?
Locate installers near me- All Info
- Reviews (413)
- Q & A (0)
- Videos (4)
- Photos
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
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 Easily Install Your Roadmaster 12 Volt Outlet Kit - 2026 Chevrolet Colorado
Hi, I'm Daniel with etrailer, and today we're going to be taking a look at, I'm going to show you how to install the Roadmaster 12 volt outlet kit on our 2026 Chevrolet Colorado. This kit is going to be for your portable braking systems like our Blue Ox here today. It's going to need a 12-volt constant power, but our vehicle needs a battery disconnect for this to be in flat tow mode, so we're not going to be able to use anything on the vehicle. So that's where our 12-volt outlet comes in place. That just connects directly to our battery, and we can plug this in and get power. Running our wire over to our battery is really simple, but I couldn't get the inline fuse through our grommet.
I would have to make a huge hole. So I just ended up cutting it and used a heat shrink buck connector to splice it back together. And it will come with an inline fuse. It will come with those cartridge fuses if you do need to replace one. It is really simple.
Now, if you have any further questions about what portable system's going to work best for you or anything else flat tow related, please feel free to reach out, I'd be happy to point in the right direction. As far as getting this kit installed, like I said, it is really simple. But if you need anything else installed, like any of your other flat tow components, we do have an installer locator you can check out. It's going to be an installer local to you to get anything you need installed. But if you want to get this installed, follow along, and I'll walk you through the process.
I have our 12-volt outlet kit and we're by our brake pedal. And I do need to run this through our firewall, but the fuse on here is a little bit too big. So I'm just going to get this cut and we'll splice this in later. So we'll cut our ground and our power wires off. And now we can get this through that grommet.
I've already drilled a hole through it and I have our breakaway switch wire from our Patriot. I'm going to get this taped on here. And this is so long I'm going to be able to use this as a fish wire so I can tape this on, get this pulled through. If you did drill your hole a little bit small and you're struggling to get this through, you can use some soapy water. I'm going to use some silicone spray, and this will help get through that a lot easier. And we will have to extend these. So I got it ran through our grommet and the wire that has writing on it, that's going to be our power wire. And the other is going to be our ground so I'm going to put a white wire on that one. I'm using heat shrink butt connectors. These are nice to get because when you add heat to them, they'll shrink around your wire, creating a watertight seal. You can take our inline fuse that we cut off. We'll get an eyelet crimped on one side. I did cut off the connector that was on here. And I will use a heat shrink butt connector and get this connected to our black wire. And now I can put this on the positive post of our battery. I'll use a 10-millimeter socket. Get that on there and get this tightened back down. And for our white wire, I just grounded that to the negative post on our battery. For our 12-volt outlet, we have it routed in and I have it zip tied away from our pedals over here. It does come with a bracket and I personally don't like using it because I don't want to have to drill into some of the plastic on our dash. And I don't want it to sit down here because it's the potential of kicking it and it doesn't look the best. So when I use it, I zip tie it up just so I'm able to plug in our braking system. And when I'm not using it, I like to just tuck it back here out of the way. And now, you don't even see it. And to make sure this is working properly, I have our Blue Ox Patriot, I'm just going to plug this in and make sure we have power. As you can see, we got our red light. I'll just press the power and we're all good. With that installed, I'll plug everything else in and get this set up, but that just about the look at the Roadmaster 12-volt outlet kit on our 2026 Chevy Colorado.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- etrailer mistake
- Product did not meet expectations
- Wrong item was ordered
Ratings & Reviews
4.7
413 reviews
by:
Mark
09/17/2026
I bought the kit to supply power to the flat tow braking system. Works great for that. Instructions were helpful. I ended up adding more wire to get to the fuse box in the engine bay of my Wrangler. I will also use this power outlet for Christmas lights during the holidays.
by:
Sparrows
08/20/2026
The bracket that holds the receptacle is too loose. When inserting a plug into the receptacle it can/will pop out. Tried crimping it down, a little better. It’s under the dash and so a little electrical tape never hurt anyone.
Connecting to my Maverick via the default fuse method not an option. Iplanned to attach to the jump post anyways. Clip off the fuse tap and…the supplied ring terminal was tiny. Adding a few different sizes of ring terminals would be appreciated and increase build cost about 15¢.
Connecting to my Maverick via the default fuse method not an option. Iplanned to attach to the jump post anyways. Clip off the fuse tap and…the supplied ring terminal was tiny. Adding a few different sizes of ring terminals would be appreciated and increase build cost about 15¢.
by:
Wes
07/20/2026
Received the 12-volt outlet kit in quick time. It is a high-quality piece which is what I like to use. Need to do the installation next and I see no problems as I will do a direct to battery install. And the kit comes with plenty of wire to reach the battery.
by:
Norris
09/11/2026
Straight forward install after watching your install video that explained what additional parts required for 2020 Jeep wrangler
by:
Garry
03/21/2026
I ran this to the hot wire coming out of the 7 wire plug for the coach, I had to add wire to reach the front of the car. It has power any time I’m hooked up to the coach, I use it for my portable blue ox braking system.
by:
Michael
06/25/2026
I would give it a 5 star, but had to alter the bracket so the outlet would fit it. Other than that it works great. I would suggest the bracket be redesigned so your customers dont have to alter items to make them fit.
by:
Tommy
03/24/2026
I ordered the item from Kelly P online; she was great then. I paid an additional fee to have the order delivered in 2-days. The shipment never arrived. I tried calling and emailing her but she wouldn’t reply. Fortunately i called the customer service line and was refunded the item and cost of the additional shipping.
by:
Mick
07/09/2026
work perfect with my Blu Ox breaking system
by:
Richard
11/09/2026
Easy install
by:
Michael
06/29/2026
Wrong fittings for battery hookup.
by:
Rudy
04/22/2026
Great videos to assist with installation.
by:
Paul
07/20/2026
Everything looks good thanks for your help.
by:
Scott
09/02/2025
Worked great until it totaled the car. Installation was fairly simple. We used it for 5000 miles with no problems to power our Blue Ox brake.
by:
Dennis
10/03/2025
lighter cylinder doesn't fit bracket. I bought this as a kit if it does't fit its not & should not be sold as a kit. Spent an hour filing bracket to fit cylinder. Not happy.
by:
Chris
05/06/2026
I had it professionally installed. It appears to be functioning fine. Our first trip is coming up Friday so I’ll give it a true test.
by:
C
02/28/2021
Good instructions and easy to instal tnx to Lori AB for putting my order together
by:
Eric
08/28/2025
Pretty simple . Keeps battery charged.
by:
Jim
01/01/2020
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
by:
Chip
06/06/2025
Needed for towing for the lights and have had no issues at all using this for the last year
by:
James L
07/13/2021
I watched the installation video before purchasing this Outlet Kit. My installation of it was into a 2010 Subaru Forester and was no different than the video. It went without any difficulty.
The only weak point to the kit in my opinion is the brass connection piece that attaches to the fuse. It fit over the fuse connection fin without any problem.
The shortfall comes when one connects the female positive connector to the exposed part of the brass connector. The positive connector is much wider than the brass connector which goes on the fuse, making the connection loose. I crimped the positive connector in order to keep it attached to the brass connector.
I ran the outlet wire under the door sill, in the wire trough there so the outlet would be in the rear seat area. I use the outlet to power my 12VDC car refrigerator.
The only weak point to the kit in my opinion is the brass connection piece that attaches to the fuse. It fit over the fuse connection fin without any problem.
The shortfall comes when one connects the female positive connector to the exposed part of the brass connector. The positive connector is much wider than the brass connector which goes on the fuse, making the connection loose. I crimped the positive connector in order to keep it attached to the brass connector.
I ran the outlet wire under the door sill, in the wire trough there so the outlet would be in the rear seat area. I use the outlet to power my 12VDC car refrigerator.
James L.
7/14/2022
It performs perfectly. I am extremely satisfied with the product.
by:
JimD
07/28/2017
This 12 volt wiring kit was easy to install. I use it to provide power to my Roadmaster 9400 Even Brake supplemental braking system in a 2017 Chevrolet Equinox. It is quality product. The Video by etrailer.com provided a helpful addition to the instruction supplied with the kit.
Jimd
7/28/2018
Still performing great. Easy installation. I recommend this kit.
by:
David
03/22/2026
easy to set up and works great
by:
Norman
03/21/2026
Working great
by:
Harvey
02/13/2026
Provided valuable consultation on device needed to resolve my needs.
by:
K
05/03/2025
Had this installed to power my patriot braking device, works great!
25
413
true
Show More Reviews
See what our Experts say about this Roadmaster 12V Power Accessories
- Does The Voyager WiSight 2.0 Camera System Have A USB Power Cord For The Monitor The Voyager WiSight 2.0 Wireless RV Backup Camera System w/ Night Vision # ASA57YR does not have a power cord or adapter to allow it to plug into a USB outlet so you would need to install a 12v outlet, like part # RM-9332, in your vehicle in order to power the monitor.
view full answer... - Parts Needed to Flat Tow 2025 Jeep Wrangler SportHey Dellos, the Blue Ox base plate and tow bars are in my opinion the easiest to use and are also very well made so I would recommend the Blue Ox part # BX1139 with the tow bar part # BX7420. Then for lighting the Curt kit part # C96JR is a very simple install so that would be a great choice as well. 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 # BLU37TR, that applies the vehicle...
view full answer... - Flat Tow Set Up For a 2026 Jeep Wrangler RubiconHi Arthur, I took a look at your list of parts to flat tow your 2026 Jeep Wrangler Rubicon and it looks like you have almost everything you need! For the Blue Ox Patriot Supplemental Braking System part # BLU37TR, it plugs directly into a 12V outlet to power it, so you'll need to install one in your vehicle. Jeeps don't come with a 12V outlet, so I recommend the Roadmaster 12V Outlet Kit part # RM-9332 which runs to the Jeep's battery to provide power to your braking system. Speaking...
view full answer... - How To Power A Furrion Vision S RV Camera Monitor In A Vehicle Without A Cigarette Lighter Port There are adapters on the market that can go from a cigarette lighter style plug that the # C-FOS07TAPK-006 has to USB/USB-C ports but we don't currently offer any so the only solution I can provide is the # RM-9332. This is a replacement outlet typically used to power portable braking systems when flat towing but can be used for this purpose as well. The # RM-9332 is typically wired directly to the battery but you can use the included fuse tap and wire it to a fuse that only has power...
view full answer... - Blue Ox Patriot Supplemental Braking System Power DrawThe Blue Ox Patriot # BLU37TR has a 2 amp max draw on your 12v power. 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 have it, and then using the Roadmaster Battery Charge Line Kit...
view full answer...
- Will the Curt Custom Tail Light Wiring Kit C96JR Work w/ LEDs on a 2025 Wrangler Unlimited?Hey Jim. The Curt Custom Tail Light Wiring Kit for Towed Vehicles item # C96JR is indeed compatible with the LED lights on your 2025 Jeep Wrangler Unlimited. It plugs into your factory wiring harness behind the tail lights. The only issue would be if your Jeep has the ParkSense proximity sensors. If your Jeep has the ParkSense feature you'll need the Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights item # RM47ZR. It looks like you've purchased a few flat tow accessories...
view full answer... - Parts Needed to Flat Tow 2018 Jeep Wrangler JL With BrakeBuddy Supplemental Braking SystemTo flat tow your 2018 Jeep Wrangler JL you will need to start with compatible base plates; because you have a Blue Ox tow bar and assuming you have the standard factory bumper the best option is the Blue Ox Base Plate Kit # BX1139 which will be compatible with Blue Ox tow bars Alpha # BX7380, Avail # BX7420 as well as Aventa, Aladdin, Adventurer, Ambassador, Acclaim, Allure, and Trion. If your Blue Ox tow bar does not have integrated safety cables you will need those and can use the Blue...
view full answer...
- Full Flat Towing Setup For 2026 Ford Maverick Hybrid Lariat With Active Cruise ControlHey David! As long as your 2026 Maverick is a hybrid, the Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM87NQ is indeed a fit. There are no baseplates for non-hybrid models as only the hybrids are flat towable. These baseplates are a good setup for the Roadmaster Nighthawk tow bar you already have, so no adapters are needed :). The Demco Stay IN Play DUO braking system # DM86VR will work well, but you'll also want regulator adapter # DM88UV to help regulate the braking pressure...
view full answer... - Parts Needed to Flat Tow 2024 Chevrolet Silverado 1500 Trail BossHey Jimmy! I would be happy to help you get setup to flat tow your 2024 Chevy Silverado 1500 Trail Boss. You will need a tow bar, base plate kit, safety cables, wiring, and a supplemental braking system. I recommend the following: -Roadmaster Direct-Connect Base Plate Kit # RM86MR -Roadmaster Falcon 3HD Tow Bar # RM27NQ (Cover # RM-055-3 is optional) -Roadmaster 80" Hybrid Coiled-to-Straight Safety Cables # RM-674 -Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-152-1676-7 -Roadmaster...
view full answer... - Parts Needed For Flat Towing a 2023 Ford F-150 With Blue Ox Tow Bars and Patriot Braking SystemYes, you will be able to use your Blue Ox Tow Bar # BX7420 and Blue Ox Patriot Portable Braking System # BLU37TR on your 2023 Ford F-150. But you will need a 12 Volt Outlet Kit # RM-9332 to power the Patriot braking system as the factory 12 volt will not have power when being flat towed. You will need the Blue Ox Base Plate Kit # BLU33FR for your F-150 along with the necessary wiring components. A Charge Line Kit # RM-156-25 is needed as the battery will be drained by your F-150 and the...
view full answer... - Complete Flat Tow Setup For 2014 Jeep WranglerHi Sidney! I would be happy to put together everything you need to flat tow your 2014 Jeep Wrangler. I recommend the following: -Roadmaster Direct-Connect Base Plate Kit # RM-521448-5 -Roadmaster Falcon 3HD Tow Bar # RM27NQ -Roadmaster 80" Hybrid Coiled-to-Straight Safety Cables # RM-674 -Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-15267 -Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System # RM-766 -Curt RVi Series 4 Portable Flat Tow Brake...
view full answer... - Solution For Powering Voyager Wisight 2.0 Monitor With 12v Cigarette Liter Power CordHello Brian, thanks for reaching out. I can't think of any reason why a USB to Cigarette Liter adapter wouln't work for that. As long as it is providing constant 12v to the monitor it should be fine. My only hesitation is a lot of those adapters I see online look very cheap so I do question the reliability and druability a bit. A much more reliable solution would be to install a permanent 12v outlet in the cab of your truck. Take a look at the following: - 12 Volt Outlet Kit, 20 amps...
view full answer... - Flat Tow Setup for 2022 Jeep Gladiator Behind a Class A RVHi Ripu, to flat tow your 2022 Jeep Gladiator behind your 2021 Thor Windsport, you’ll need a base plate, tow bar, safety cables, wiring for lights, and a supplemental braking system. A really solid setup starts with the etrailer Invisible Base Plate Kit part # e98948, there’s no bulky crossbar or brackets left hanging out up front, and the attachment tabs stay with the tow bar instead of sticking out from the bumper for a nice clean look. For the tow bar, etrailer SD Non-Binding Tow Bar...
view full answer... - Parts Needed to Flat Tow a 2026 Ford Ranger 4x4 XLTHi Brian, To flat tow your 2026 Ford Ranger XLT with your Blue Ox Avail Tow Bar, you'll need: - Blue Ox Base Plate Kit w/Removable Arms part # BLU77ER, this will require some minor drilling, and the tow hooks must be removed and remain off the vehicle after the plates are installed. -Roadmaster Smart Diode Kit for Variable Voltage LED Taillights w/7-way to 6-way Adapter Cord part # RM38FR -Roadmaster Battery Charge Line Kit for Towed Vehicles part # RM-156-25, maintains the battery...
view full answer... - Recommended Flat Towing Parts for a 2022 Jeep Wrangler 4xe w/a Factory Winch BumperYou're welcome! Thanks for all of the information! You could go with the Blue Ox item # BX1139 but I've got a different recommendation that will save you some money and get you a better setup. The Curt RVi battery charger is definitely the way to go. To flat tow your 2022 Jeep Wrangler 4xe, I recommend the following parts: Tow Bar and Safety Chains - 8,000 lbs Roadmaster Sterling All-Terrain Tow Bar item # RM-576. This kit includes safety chains, the 7-way to 6-way cable to connect to...
view full answer... - Best Flat Tow Braking System for 2021 Buick Encore GX and Motorhome with Hydraulic BrakesHi Jeff, that’s a great question, especially since you’re coming from a coach with air brakes and want something that feels just as reliable and easy to use. Both the Blue Ox Patriot 3 part # BLU37TR and a permanent system like the Demco Stay-IN-Play Duo for Hydraulic brakes part # SM99251 are solid options, but the “best” choice really comes down to how you plan to tow and how much convenience you want day to day. The Patriot 3 is a portable unit that sits on the floor and presses the...
view full answer... - How to Power Blue Ox Patriot Braking System When Vehicles Negative Battery Cable Is UnhookedNo 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... - Will Roadmaster Falcon Tow 2025 Jeep Grand Cherokee OverlandHi John; as long as you aren't exceeding that 6,000 lb capacity it won't be a problem so you can use the Falcon to tow your 2025 Jeep Grand Cherokee Overland. Since the Overland has tow hooks the correct Roadmaster Direct-Connect Base Plate Kit is the # RM77ZR. Since you want to use the Blue Ox Patriot # BLU37TR you will also need the 12 Volt Outlet Kit, 20 amps # RM-9332. If you need new wiring the Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights # RM63MR is the best option...
view full answer... - What Else Do I Need to Flat Tow My 2025 Jeep Wrangler Sahara?It looks like you're already in great shape because you have the three major components needed for flat towing: the etrailer Invisible Base Plate Kit part # e98948, the Blue Ox Patriot Portable Flat Tow Brake System part # BLU37TR, and the Blue Ox Alpha Non Binding Tow Bar part # BX7380. I was able to use your email to find your past orders like you mentioned. I can help make sure you have everything else you'll need. To complete the setup, you'll need tow bar wiring so your motorhome's...
view full answer... - What Camera System Should I Get for My 2024 Vita Winnebago RV on a 2022 Sprinter Frame?Hello Rosalyne, Furrion actually just released a new camera system recently, but they are still using the cigarette charger (also known as the 12 volt outlet). Sounds like your RV might not have one, so you will want to install the 12 Volt Outlet Kit, 20 amps # RM-9332. After you get the 12 volt outlet installed, you will be able to get the Furrion Vision S+ Wireless RV Observation System w/ 4 Cameras - 7" Screen # FR74AD up and running. The reason you should go with the new upgraded...
view full answer... - Recommended Flat Tow Wiring Harness for a 2025 Jeep GladiatorHey Fred, welcome back. There is no flat towing wiring harness with built in diodes that doesn't require splicing into your Gladiator's lights. You will definitely need the diodes regardless of what flat tow braking system you're using. The diodes separate your turn and brake signals so the individual functions work correctly while connected to your RV. They also prevent feedback. I have two options for wiring harnesses that I recommend for your 2025 Jeep Gladiator. They come with the...
view full answer... - Recommended Baseplate and Wiring Harness for a 2026 Jeep Wrangler RubiconI sure can Clark and congrats on the new Jeep! Since you already have a Blue Ox tow bar and their Patriot 3 Braking system item # BLU37TR, here are the rest of the parts you'll need to flat tow your 2026 Jeep Wrangler Rubicon: Baseplate - Blue Ox Base Plate Kit item # BX1139 Wiring Harness - Roadmaster Smart Diode Kit- 7-Way to 6-Way Adapter Cord item # RM63MR or the Roadmaster Smart Diode Kit item # RM47ZR if you don't need the 7-way to 6-way cable. There's no plug and play wiring harness...
view full answer... - How Do I Add a 12V Outlet in the Bed of a 2017 Ford F150? Hi Ada! To add a 12V outlet to the truck bed of your 2017 Ford F150, I recommend using the Roadmaster 12V Outlet Kit part # RM-9332. The wires for this kit will need to be extended so they can reach the battery, you can use 12-gauge wire part # 12-1-1 to extend the harness. You will also need some butt connectors part # 05732-2 and a 12 gauge Fuse Holder part # SWC9539 to help connect the wires and attach the fuse to the battery terminal. Once you obtain all of these parts you will...
view full answer... - 12 Volt Outlet for 2025 Chevrolet Silverado 3500 to Run Furrion MonitorHello Bernie. There is not an adapter at this time, it would be nice if they had one to go into a USB port. Your best option at this time would be to install the 12 Volt Outlet Kit, 20 amps # RM-9332 in your 2025 Chevy Silverado 3500. I have included an install video on a 2020 Chevy Silverado 1500, install would be the same.
view full answer...
Do you have a question about this 12V Power Accessory?
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:
Conner L
Test Fit:
David F
Test Fit:
Ryan G
Test Fit:
Clayton O
Test Fit:
Bradley B
Test Fit:
Ian F
Test Fit:
Jesse B
Test Fit:
Scott A
Test Fit:
Daniel M
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:
Jacob H
Video by:
Aidan B
Video by:
Daniel D
Video by:
Islye U
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Andrew L
Video Edited:
Dustin K
Video Edited:
Sue W
Video Edited:
Chris R
Video Edited:
Jonathan Y
Video Edited:
John S
Video Edited:
Ethan H
Installed by:
Cole B
Updated by:
Wilson B
Updated by:
Hannah L
Updated by:
Isabelle B
At etrailer 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. Let us know if anything is missing or if you have any questions.
Jim H.
1/2/2021
Awesome. Great power source for cell phone charging or an inverter for powering a laptop