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Roadmaster Hy-Power Diodes (Qty 3)

Roadmaster Hy-Power Diodes (Qty 3)

Item # RM-793

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RM-793 - Diodes Roadmaster Accessories and Parts
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  • Tow Bar Wiring
  • Diodes
  • Roadmaster
Call 800-298-8924 to order Roadmaster accessories and parts part number RM-793 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Hy-Power Diodes (Qty 3). Accessories and Parts reviews from real customers.


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  • Reviews (106)
  • Q & A (2)
  • Videos (1)
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Roadmaster Accessories and Parts - RM-793


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: (3) 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).


793 Roadmaster Hy-Power Diodes





Video of Roadmaster Hy-Power Diodes (Qty 3)


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-793 Review

Speaker 1: Today we're taking a look at the Roadmaster high powered diode. Now this will allow motor homes or RV's to power the lights on the towed 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 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 treble free wiring connections.

Also on the back of the packing 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 backside.The aluminum heat sync helps prevent overheating, 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 brake, one for the right turn and brake, and then two for the tail lights, one per side.That's going to do it for today's look at the Roadmaster high powered diode..


Customer Reviews

Roadmaster Hy-Power Diodes (Qty 3) - RM-793

Average Customer Rating:  4.9 out of 5 stars   (106 Customer Reviews)


- RM-793
by:

Installed 6 of these to wire up my 04 Honda CR-V as a Toad. They work great so far, lights come on from either the CR-V or the RV. Nice that they come with the terminal lugs so all you have to do is strip and crimp the wires. 223175



- RM-793
by:

They work as expected. I installed them near a junction box for secondary backup lights on my truck. They allow me to use a switch to turn on the LED lights as well as them come on automatically when my truck is in reverse. I've recommended these to several other folks that need additional lighting solutions on their vehicles or trailers. 581073



- RM-793
by:

It fit my Explorer perfect and works great when I tow it behind my motorhome. 290236



- RM-793
by:

work great 253052


Comments

You sell the best products

ronald L - 05/29/2017

24255

- RM-793
by:

Nice product. Works as described. Saves causing damage to vehicles electrical system. 208715



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I needed to charge my tow vehicle battery by taping in to my tail lights on my motor home. This will prevent The tail lights on the tow vehicle from feeding from its own battery. My break buddy was depleting the tow vehicle battery on long trips. Solved my problem! 524458


Comments

Working great, no problems

Jon l - 06/20/2019

56873

- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 655651



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Just what I wanted. Looked in all the local auto stores with no luck. Came in two days. Works great. 314746



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Works just like I expected it to. 442633



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Needed to set up a circuit to activate my reverse lights on the trailer to light up the loading ramp. This worked great to keep the power from backfeeding into the car. 148921



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Ordered a diode for a project on my RV and it worked out fine. I just wish the price was much cheaper for such a small part. 402096


Comments

Ok

Jim - 07/06/2018

40570

- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


This is a little premature to give a product rating. I will say that the diods iordered arrived sooner than expected. After reviewing the options for wiring a vehicle to be towed behind a mtrhome this is the way to process. Thank you, Jim 464083



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I bought these electrical products for my brother‘s Fiat that he tows behind his moterhome for extra parts haven’t had to use them yet but it’s good to know that etrailer Corp. has the parts thanks George J. 570830



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


has worked great. 478527



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I ordered the product to install in my 2014 VW. The next morning I got a call that what I had ordered would not ship right away and they told me if I didn't mind they could put everything I needed together and ship it right out. The he asked what I was going to use this for and It happened to be what I needed.i installed it today and it works great. 177040



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


What I like about your business is the fast fulfillment and delivery of the part i ordered. I will recommend etrailer in the future. 173141



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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.... 232182



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Fantastic. The advice received from E-Trailer was perfect. The Diode was exactly what I needed. Small, inexpensive, and very effective. The adhesive back and included connectors couldn't have been a better fit. Needed this to prevent backfeeding of a Motorcycle Lift Battery in my pickup from powering the truck. Truck required a disconnect of the negative battery cable before towing behind a motorhome. 332628



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I was amazed to learn that similar to plumbing, you can put a one way valve in a 12 volt wire as well. One of my batteries was not being charged when our RV was plugged in and to make sure I did not run down my engine battery I installed this diode. Simple and came with connections ready to be hooked up. Arrived pretty quickly too. That you Christina J for one on one over the phone help. 500181



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


This diode was easily installed and functions extremely well, as do all of the products we have purchased from etrailer.com. etrailer's extremely competitive prices, their outstanding customer service, and their free, quick delivery make them our go to company for all of our towing needs. 143778


Comments

The products are performing perfectly!

George C - 07/31/2015

13784
Comments

We love the equipment that we purchased from you. We have had no issues with towing our Miata.Thank you for your correspondence.

George C - 08/04/2015

13893

- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Using this to trigger a 12V device if one or both 12V sources are on. Essentially I need to turn off a device if my engines are running. I wanted to make sure that if one engine was not running it would still trigger the device. This worked perfectly because it isolated the input sources so there is no conflict when both 12V inputs are on. Lots of uses, sturdy construction - simply perfect! 254347



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 264095


Comments

Over a year and still working well. High quality.

Ron - 06/23/2017

25330

- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 396322



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 517440



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I always have trouble receiving deliveries because I have a postal address that doesn't accept FedEx or UPS and a physical address that doesn't accept USPS. The website doesn't specify the shipping method, so I sent a note to customer service. The rep personally oversaw my shipment so that I got it quickly and at the right destination. It's that kind of service that keeps me coming back to etrailer.com 246724



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 658792



- RM-794
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Fair price, delivered as agreed on time. Would buy again from this vendor. Only reason I did not give this five stars is that I have yet to actually hook them up in the wiring system to enable my factory lights on the towed vehicle to be operational when taken on a trip behind my RV. 656394



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I bought all Roadmaster parts for my tow car. ALL worked as advertised(GREAT) I thought about a 4 star because slow delivery but you all were helpful. 621601



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


So far so good 614214



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Good product works well one leg to camper batttery one leg from truck to camper batteries 610816



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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 608849



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Diode was delivered promptly and was a good transaction, Very pleased with the service 606072



- RM-794
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Wired up 2012 Jeep JKU for towing behind RV. These 4 diodes worked perfectly! Watched trailer video, it was easy. 603740



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


I haven't actually used them yet but they look good. 602183



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 584734



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Used on spray equipment wiring to run a foamer with an on/off/on (L-R) switch. Had to eliminate a feedback loop with a high amp diode to run an actuator, this item fit the bill very nicely. 576776



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Fits perfectly and works great without overheating. 571395



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


glad we could find it here. 554841



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Great stuff , the guys and gals at etrailer are super awesome, thanks 523322



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Excellent service. 521452



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


1950 Spartan Royal Mansion. Thank you for your ongoing help and wide array of products!!! 501458



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Just installed it. I think it’s working. I like that the spade terminals are included. 493819



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Works great!!! 493044



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Put it in a snowmobile trailer with a battery and hook the clearance light wire with the one way diode & then to the interior lights so if someone leaves the lights on in the trailer we can still start the pickup when we get back from a 3 day ride 477933



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Nice item, problem solved with my auxiliary lights on the rear of my pickup, lights now work off two switches and no feed back either source. Can put truck in reverse and it doesn't feed power back to switch or i can manually turn them on from the switch and no back feed to my reverse lights. Was nice that it came with butt connectors even tho i have all the electrical connectors, didn't have to search for any. Liked how you can put two power source in and it goes out to one and didn't have to buy two diodes one for each side like traditional diodes. All around nice product and well made. Sorry didn't have a pic to post with it didn't feel like pulling taillight back out. 472833



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


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. 466537



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Just what I was looking for small and compact also 463406



- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Bought this so I could install backup lights on my trailer and also be able to use them as loading light. This has worked out great. I have also purchased several other items from etrailer and have been happy with all of them. 454001


Comments

After a year this Diode has ben flawless works great for my application.

JAMES S - 11/21/2018

45910

- RM-790
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Used diode in wiring dingy battery to RV to keep it charged while towing - worked great. 450358



- RM-792
by:

Review from a similar Roadmaster Hy-Power in Accessories and Parts


Diodes worked great 443901


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Ask the Experts about this Roadmaster Accessories and Parts

Do you have a question about this Accessories and Part?


  • RV Brake and Towed Vehicle Brakes Both Applied via Diodes
  • I spoke with my contact at TowReady and he said the brake lights will come on normally when both the brake pedal on the RV and towed vehicle via a Brake Buddy are applied. He said if either brake is pressed the brake lights will come on. When both brake pedals are pressed at the same time the brake lights will come on. He also said 2.1 amps per side is plenty to handle your CR-V's brake light. They should illuminate normally when both the RV and towed vehicle brake pedal are applied.
    view full answer...

  • Are the Roadmaster Hy-Power Diodes Water Tight
  • As long as you are not exceeding the 6 amps at 12 volts per diode max load then you can definitely use the configuration in your diagram. I spoke with my contact at Roadmaster who said that the connections are not watertight but the internal components are. You would either need to find a way to make the connections watertight (as you mentioned in your diagram) or simply wipe the connections off if you were to go off-road with your 2011 Jeep Wrangler and get the diode(s) wet. We have...
    view full answer...


Do you have a question about this Accessories and Part?




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Info for this part was:

Installed by:
Cole B

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