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Roadmaster Hy-Power Diodes (Qty 2)

Roadmaster Hy-Power Diodes (Qty 2)

Item # RM-792
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RM-792 - Diodes Roadmaster Tow Bar Wiring
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Roadmaster Accessories and Parts - RM-792

  • Tow Bar Wiring
  • Diodes
  • Roadmaster


Roadmaster Hy-Power Diodes

Diodes permit electrical current to flow in only one direction - from the motorhome to the car - preventing electrical feedback and the damage it can cause to the towed car's electrical components.

Features:

  • Qty: (2) Diodes
  • Reduces wiring hassles
  • Trouble free operation
  • Includes detailed wiring instructions
  • Maximum load is 85 amps per diode

Note: 4 Diodes are required for most applications (1 left turn/brake, 1 right turn/brake, 2 for tail lights - each side).


792 Roadmaster Hy-Power Diodes






Video of Roadmaster Hy-Power Diodes (Qty 2)

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




Video Transcript for Roadmaster Tow Bar Wiring RM-792 Review

Speaker 1: Today we're taking a look at the ROADMASTER Hy-Power diode. Now, this will allow motor homes or RVs to power the lights on the tow vehicle without power feedback. The diodes allow electrical current to flow in one direction. So, that'd be from the motor home to the vehicle or to the car. This prevents any electrical feedback and the damage it may cause to the electrical components.This is available in a variety of quantities, so you can get a one pack, a two pack, three pack, or four pack. All options are available at etrailer.com.

For a one pack, use part number RM-790, for a two pack, use part number RM-792, for a three pack, use part number RM-793 and for a four pack, part number RM-794.The spade connectors allow for easy, trouble free, wiring connections. Also, on the back of the packaging, it has detailed wiring instructions, so that's really going to be helpful. So, when you get these, please do not discard the packaging because it has the nice wiring instructions on the back side.The aluminum heat sync helps prevent over heating. The self stick pad on the back allows for easy and secure mounting. Maximum load is 85 amps per diode and please note that four diodes are required for most applications, one for the left turn and break, one for the right turn and break and then two for the tail lights, one per side.That's going to do it for today's look at the ROADMASTER Hy-Power diode..


Customer Reviews

Roadmaster Hy-Power Diodes (Qty 2) - RM-792

Average Customer Rating:  4.9 out of 5 stars   (190 Customer Reviews)


- RM-792
by:

Perfect for connecting the tail lights from my RV to my car on the car dolly.



- RM-792
by:

I purchase these to set up my toad (CR-V) with the Road master 7 to 6 wiring kit along with the 2 back into 3 wire module to allow for me the use the turn signal lights (Yellow) operate separately from the brake lights so that the toad lights all work as they were set up by the manufacturer. This way also allows you to avoid having to buy the brake light relay if your vehicle brake lights are energized by the mechanical function of your braking system. Your overall cost is relative and as stated all of your lights work instead of the typical stop/tail/turn signal bulb on each side.


Comments
still great looks and works professionally
Carl - 06/10/2020


- RM-792
by:

Good product with excellent service! I can now use my reverse lights as work lights without back feeding my truck. Works great to correct those who have a have a habit of driving behind you with high beams on....



- RM-792
by:

Bought these and found them to do the job with ease.


Comments
no problems so far
Peter - 10/11/2021


- RM-792
by:

Easy install and instructions



- RM-792
by:

I bought these diodes to replace two that the connectors corroded to the point the taillights on the towed vehicle wouldn’t work. The old ones lasted 6-7 years which is pretty good. When I hook up the new ones I’m going to put some waterproofing over the connectors.



- RM-792
by:

good quality materials, connections are very well sealed from the elements. everything needed was provided my order was delivered on time



- RM-792
by:

overall it was an easy set up but some of the wiring on the drivers was about 8 in to short



- RM-792
by:

Can use these for allot more than just a towed vehicle. I used them for my loading lights on my trailer to help with backing the trailer at night. Just pulled reverse power wire from 7 pin to original cargo light wiring. Works great.



- RM-792
by:

Hi quality diodes. Worked as I needed.



- RM-792
by:

1950 Spartan Royal Mansion. Thank you for your ongoing help and wide array of products!!!



- RM-792
by:

I was very impressed with the trailer.com… Not only was the ordering very simple and effective and done in less than a few minutes I received the package in a very timely manner! Also I called the office spoke with Michelle and got the best customer service possible with an additional order… I will highly recommend etrailer.com to all of my friends!



- RM-792
by:

I just installed them and they work as they should. I was isolating lighting on an equipment trailer for a brake and turn circuit. Now it does not backfeed.



- RM-792
by:

I needed these to wire a TOAD (tow vehicle). They have worked as advertised. The plus is that they are quality products. The con is that they are not cheap.


Comments
Over a year old and still working well. High quality. Etrailer had the best prices around.
Ron - 06/23/2017



- RM-792
by:

Easy to install and worked great. Makes 4 on the ground easy to hook up to RV.



- RM-792
by:

I haven't installed the product yet, but it was exactly what I needed. Diodes of this type are not the easiest thing to find. Etrailer had them, and not only is their website laid out well, but the service and shipping were very fast.



- RM-792
by:

Working great.



- RM-792
by:

Ordering was easy, shipping was very fast and the product appears to be manufactured very well. The fact that it is a sealed unit makes me believe it will last.



- RM-792
by:

I am very happy with the product, I installed them and now my lights work great. I was very please with my customer service rep. she knew her product line and worked with me to fix my problem. Thanks



- RM-792
by:

Bought these diodes formy license plate lights on my toad. The wiring kits only come with 4 diodes which would not allow the license plate lights to be light when towing.



- RM-792
by:

Product worked as advertised tail lights on my Jeep work great when towing with my RV. Diode packaging has helpful wiring diagrams on back.



- RM-792
by:

Excellent product, great directions.



- RM-792
by:

Great stuff , the guys and gals at etrailer are super awesome, thanks



- RM-792
by:

Easy to install and worked as advertised. Installed 6 diodes and Curt inverter inside tail lights vs. inside of vehicle having to remove panels. Saved hours of work.



- RM-792
by:

Not too big so fitted in tight space well. Found crimps supplied on the loose side. Used other type which were more secure. Replacing the diodes l fitted earlier l found the problem l was looking for. Cable soldered joint. So now l,m all set for a while. This diode set looks very robust.


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Ask the Experts about this Roadmaster Accessories and Parts

  • Replacement Diodes For A 2018 Jeep Wrangler JL
    If the diode is bad then you can replace it with the Roadmaster Hy-Power Diodes (Qty 2) Item # RM-792. A bad diode does not allow current to flow in either direction. A multimeter will display OL in both directions when the diode is opened. A shorted diode has the same voltage drop reading (approximately 0.4v) in both directions. Since you have the wiring all pulled out it's also a good time to check for any kinks or cuts in the wiring and replace/repair as needed.
    view full answer...
  • Difference Between Roadmaster Hy-Power Diodes # RM-792 and # RM-794
    The only difference between the Roadmaster Hy-Power Diodes # RM-792 and # RM-794 is the quantity of diodes included with the kit. The # RM-792 includes two diodes while the part # RM-792 includes four. Otherwise the diodes themselves are exactly the same. I have attached a short video review below that you can check out as well.
    view full answer...
  • Do I Need Diodes When Using Utility Light as Reverse Lights
    Yes, I recommend to use the Roadmaster Hy-Power Diodes part # RM-792 to prevent electrical feedback since you are using the lights for both utility lights and reverse lights. A diode has 2 inputs and one output and will allow power to only flow one way. I have attached a diagram for your reference.
    view full answer...
    Image 1 for
  • Can Roadmaster Diodes be Used with 6 Volt Power
    Yes our diodes like the part # RM-792 can be used with 6 volt system as they can be used with up to 24 volt systems.
    view full answer...
  • Tow Bar Wiring System to have Separate Turn Signals and Brake Lights on 2017 Buick Envision
    Legally the dingy lights don't have to have separate brake lights and turn signals but you can certainly wire it up that way if you want. I do not know which lighting system you have but the whole kit for separate dingy lights is # 154-792-118158. If you already have a 4 diode kit then you will just need 2 additional diodes # RM-792 and converter # 118158. I have included a diagram showing how the 6 diode system wires up. If you have something other than a 4 diode kit let me know...
    view full answer...
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  • Flat Tow Wiring for a 2013 Mini Countryman
    Your 2013 Mini Countryman uses a 3-wire lighting system. That means there is a wire for the turn signals, stop lights, and taillights. You will need to install a diode on each of these circuits to prevent power backfeed. If you take a look at the attached photo/article this will give you a better idea of how to wire them properly. If you need an additional two diodes for the extra wires you can use part # RM-792.
    view full answer...
    Image 1 for
  • Can One Diode be Used Instead of Two If Tapped Into After a Splice
    Yes, the Roadmaster Diode part # RM-792 or part # RM-690 can be installed after the two reverse light circuits are already spliced together. The diodes are basically just a one way check valve for electricity so as long as you are not exceeding the circuit then you will not have any issues.
    view full answer...
  • What is the Maximum Voltage of the Roadmaster Diode RM-792
    I spoke with my contact at RoadMaster and the maximum voltage of the Roadmaster Hy-Power Diode, item # RM-792, is 24 volts. The maximum amperage is 85 amps.
    view full answer...
  • Can Diodes be Used to Combine Brake Lights and Turn Signals
    What you need is a converter to take the separate turn and brake light circuits and combine them. You will need converter # RM-732. It will take the separate signals and combine them so on the output side you have a green wire for right turn and brake and a yellow wire for left turn and brake. A diode is just a gate. It cannot discern the difference between the brake signal and the turn signal. So if you were turning left or right and braking at the same time chances are the higher...
    view full answer...
  • Troubleshooting Diodes Not Functioning When Installed on a 2001 Honda CR-V
    Before wiring your 2001 Honda CR-V with diodes, you will need to determine if it has combined tail light wiring or separate tail light wiring. Combined tail light wiring carries the turn and brake signals on the same circuit and one bulb on each side of the vehicle carries the running lights, brake lights, and turn signal functions behind a red lens. On a vehicle with a separate tail light wiring system, the turn signals are on a separate circuit from brake lights, often carried behind...
    view full answer...
  • Recommended Wiring Harness for Flat Towing 2019 Kia Soul Behind Motorhome
    From what I've found online, your Soul is capable of being flat towed if it has a manual transmission. If it does not, you'll need to use a tow dolly like the Demco # DM9713093 Kar Kaddy X. If the vehicle can be flat towed, I'd recommend using the # RM-15247 Diode System which provides a 6 circuit umbilical to connect the motorhome with your Kia Soul. Four of the circuits would provide power and ground for the taillight functions, and the remaining two could be used for a power feed...
    view full answer...
  • Wiring 2019 Ram 1500 to be Flat Towed Behind RV
    When wiring up your 2019 Ram 1500 so that it accepts the signal lights from your RV, you will indeed need to probe/test the wiring behind the tail lights for function to ensure you are making the correct connections. The process should not be any different for your truck's LEDs than with standard incandescent bulbs. If you already have a wiring kit and it does not include diodes, these will still need to be added to prevent feedback to the RV. We do have diodes available with part #...
    view full answer...
  • How To Install Tow Bar Wiring On Vehicle With Separate Brake Signal And Turn Signals
    When installing tow bar wiring on a vehicle with separate brake and turn signals that will be flat towed you would want to use a diode kit like the Demco 4-Diode Universal Towed Vehicle Wiring Kit w/ 7-Wire to 6-Wire Coiled Connector # DM9523010-54. When installed it will make your brake lights flash as the turn signals instead of your actual amber turn signals when being flat towed. If you wanted to keep the separate wiring for flat towing you would need the Vehicle to Vehicle Tail...
    view full answer...
  • Parts Needed to Flat Tow 2017 Chevy Silverado 1500 with 4WD
    We can definitely help put together a list of parts that will allow you to transfer most of them at least partially to a new vehicle at some point. You will want to consult your owner's manual as well and follow any vehicle specific instructions before flat towing. Starting with a baseplate for your 2017 Chevy Silverado 1500, I recommend using the Roadmaster MX Base Plate Kit - Removable Arms # RM-3176-3. This base plate kit has removable arms to give you a clean front end when you're...
    view full answer...
  • Does Roadmaster InvisiBrake for 2012 Jeep Wrangler Require Additional Diodes
    Your 2012 Jeep Wrangler will need the Roadmaster Hy-Power Diodes # RM-792 with the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 if your wiring kit is a 2-diode kit like the Tow Ready Tail Light Isolating Diode System # TR118821. We don't carry the Cool Tech wiring and I was unable to find out how many diodes it uses, but put simply if it is a 2-diode system instead of four, then you will need a pair of extra diodes, the Roadmaster Hy-Power Diodes # RM-792. I have also...
    view full answer...
  • Recommended Flat Tow Setup for Blue Ox Tow Bar on 2008 Honda CR-V
    For your 2008 Honda CR-V, you will want to start with the Blue Ox Base Plate Kit - Removable Arms # BX2246 which will be directly compatible with your tow bar. The tow bar you are describing is likely the old alpha or avail model, either of which will work just fine. If you want to determine which model you have, you can find it printed on the driver's side leg under the latch handle according to my contact at Blue Ox. If you don't have the safety chains, you will also want # BX88196....
    view full answer...
    Image 1 for
  • Parts Required to Flat Tow 2016 Toyota Tundra TRD Pro Behind Motorhome
    I have a solution for you to flat tow your 2016 Toyota Tundra TRD behind your motorhome, but unfortunately the curb weight of the vehicle is going to be more than any tow dolly we have available can handle, so that's not an option we can provide. A flat towing system consists of base plates and a compatible tow bar, tow bar wiring, safety cables, and a supplemental braking system and high/low adapter (as needed). For base plates I recommend using the Blue Ox Base Plate Kit - Removable...
    view full answer...
  • Installing Roadmaster Diode Wiring Kit # RM-15267 with Separate Wiring on RV and Towed Vehicle
    If both your motorhome and towed vehicle have a 3-wire system (separate stop and tail lights), then a converter like the Tow Ready # 118158 should not actually be needed. The converter is only needed if your motorhome has a 2-wire system (combined stop and tail lights) and your towed vehicle has the separate, 3-wire system. I have attached a wiring diagram that shows exactly how the kit should be installed for your specific application, where both the motorhome and vehicle have a separate...
    view full answer...
    Image 1 for
  • Roadmaster InvisiBrake Battery Charging Capabilities While Flat Towing
    Yes the Roadmaster InvisiBrake Supplemental Braking System Item # RM-8700 will connect directly to your towed vehicle's battery and charge it while driving unlike most braking systems that would actually drain your battery. Some notes to consider on this product are: This product does not work on vehicles with a non-electric hydroboost braking system. When using TrailerMate wiring with the InvisiBrake, it will be necessary to purchase an additonal two diodes, ( item # RM-792 -...
    view full answer...
  • Flat Tow Wiring for a 2017 Jeep Wrangler
    The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit, part # RM-15267, is the best option for you to use to flat tow your 2017 Jeep Wrangler. It will provide a 6-Way wiring harness to the front of your Wrangler that you can connect to the 7-Way on your RV with the included Flexo-Coil cord. If your Wrangler has separate lighting you will need to use a wiring converter, part # 118158, along with 2 additional diodes, part # RM-792, to keep your turn and brake signals separate. If...
    view full answer...
  • Can Diodes for InvisiBrake be Installed on Wiring for Trailer Plug of Towed Vehicle
    Although it would be easier to install the diodes like part # RM-792 on the trailer connector, for the InvisiBrake # RM-8700 to work properly the diodes need to be installed at the rear of the bulbs. The reason for this is that the 4-Way trailer connector recieves the signal "after" the lights so they wouldn't be effective.
    view full answer...
    Image 1 for
  • Recommendation For Flat Towing 2009 Jeep Wrangler Behind RV
    Yes, either braking system will work. Both the Blue Ox Patriot, Item # BRK2019, and the Roadmaster InvisiBrake System, Item # RM-8700, are good options. Both will need power connections so you can connect the Patriot II with a 12V Outlet Kit like Item # RM-9332 and the InvisiBrake will connect directly to the battery. Of the two, I recommend the Roadmaster InvisiBrake System, Item # RM-8700, because it is a one-time install and then you are good to go. Because you will need to...
    view full answer...
  • Will the Roadmaster # 131-15 Base Plate Kit Fit a 2014 Toyota FJ Cruiser
    Although the Roadmaster XL Base Plate Kit # 131-15 will fit a handful of vehicles, it is not confirmed to fit your 2014 Toyota FJ Cruiser. The correct Base Plate Kit for your FJ Cruiser is the Roadmaster XL Base Plate Kit # 1183-1 instead. This will work great with the Roadmaster BlackHawk 2 All Terrain, Non-Binding Tow Bar # RM-422 that you mentioned. Keep in mind that you will also need Safety Cables, Vehicle Tow Bar Wiring, a Supplemental Braking System, and most likely a High-Low...
    view full answer...
  • How To Wire A Towed Vehicle When Both Vehicles Have Separate Stop And Turn Signals
    The Tow Ready Vehicle To Vehicle Taillight Converter, # 118158, you have referenced will not be needed since you will be staying with a 3-wire system (separate stop and tail lights)on both of your vehicles. The converter is only needed if you had a 2-wire system (combined stop and tail lights) on the towing vehicle and a 3-wire system on the vehicle being towed. I would recommend using a diode system to wire your vehicle because the diodes will prevent feedback from going from the taillights...
    view full answer...
  • Recommendation For Flat Towing 2007 Chevrolet Tahoe 4x4 Behind Motorhome
    I reviewed the 2007 Chevrolet Tahoe owner's manual and it can be flat towed. To flat tow your Tahoe, you will need base plates, a tow bar, safety cables, wiring, a braking system, and maybe a high-low hitch adapter. For your 2007 Chevrolet Tahoe 4x4, I recommend the Roadmaster MX Base Plate Kit, Item # 3154-3, because it is designed for your vehicle. It is built with heavy-duty applications in mind. The front arms are easily removable when not in use. The Roadmaster Nighthawk...
    view full answer...
  • How Many Diodes Needed to Install Roadmaster Second Vehicle Kit
    To do a diode style of tow bar lighting for your vehicle using the Roadmaster Invisibrake # RM-8700 you need is 4 diodes to follow the install diagram that you referenced which I also attached to this page. So you'd need a quantity of 2 of the part # RM-792.
    view full answer...
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  • Base Plate Kit Options for Flat Towing a 2013 Ford Edge
    For your 2013 Ford Edge we have 2 different options for a base plate kit. One is the Roadmaster XL # 4408-1 and the other is from Blue Ox # BX2628. The both are compatible with the non-EcoBoost without Adaptive Cruise Control. The difference between these options is that they install slightly different and the removable draw bars have a different design. The Roadmaster XL # 4408-1 will work great with the Roadmaster Falcon 2 Tow Bar # RM-520 and 6K Coild Safety Cables # RM-643. If...
    view full answer...
  • Parts Needed to Flat Tow 2013 Chevrolet Spark with 2014 Tiffin Allegro Breeze
    The Blue Ox Base Plate Kit # BX1722 and the Blue Ox Alpha Tow Bar # BX7380 will work well for you to flat tow your 2013 Chevrolet Spark. The other components needed to flat tow are a lighting kit and a supplemental braking system. The Alpha tow bar includes the needed safety cables. For a lighting kit, I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This kit includes the diodes and wiring needed to splice into your Spark's stop and taillight circuits...
    view full answer...
    Image 1 for
  • Recommendation For Flat Towing 2008 Saturn VUE
    The items needed to tow your 2008 Saturn VUE will include base plates, a tow bar, safety cables, wiring, a braking system, and maybe a high-low hitch adapter. For your 2008 Saturn VUE, I recommend the Roadmaster XL Base Plate Item # 3151-1A because it is designed for your vehicle. It also has twistlock brackets that are virtually invisible and can be removed. The Roadmaster Falcon All Terrain tow bar, Item # RM-522, is a great choice that fits the Roadmaster XL Base Plate. You will...
    view full answer...
  • Are Roadmaster Kit Diodes and Wiring Converter for Isolated Stop Lamp Available Individually?
    The Vehicle to Vehicle Tail Light Converter # 118158 is absolutely available apart from the Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting # 154-792-118158. Then for the additional diodes you need beyond what you currently have you will use the Roadmaster Hy-Power Diode - (Qty 1) # RM-790 or package of 2 # RM-792. The prices are on each product summary linked or on the individual product pages.
    view full answer...

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