To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
In-stock alternatives that can ship today
Diode Kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. 4-Pole flat loop included to connect RV to towed car.
Features:
Specs:
Note: For applications that have separate lighting, this kit will cause your brake lights to function as both brake and turn lights. Wiring converter kit (154-792-118158) can be purchased instead if you want to retain separate turn and brake signals.
Average Customer Rating: 4.8 out of 5 stars (396 Customer Reviews)
Diode Kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. 4-Pole flat loop included to connect RV to towed car.The product worked fine. However, I just found out about wireless brake lights for tow car from a fellow camper. Had I known I would’ve gladly purchased that option over running wires and tapping into my vehicles wiring. Please share that product with all tow bar consumers. My wires work well but were a pain to install. Thanks for all of the great videos I needed to complete the install. I do recommend etrailer.com to everyone.
Looks like a great product and detailed/pictured instructions. Tech support was also very helpful with determining figment with my tow bar. Thanks!
When I open my rear taillight assembly, the existing wiring was much smaller than the wire supplied with the kit. I did not install that part of kit. I did use the front to back wiring and purchased to two medium size LED light to install in rear bumper.
I gave each and every one of the items I purchased a 5star rating because they each have contributed greatly to my confidence and sense of security about full-time RVing in my Class C rv towing my little car behind. Each product has been well made and thought out and the service from etrailer has been great....from price to shipping and packaging. I couldn't be more pleased with everything. Job well done. Thank you.
I recently installed the Roadmaster Diode Wiring Kit on my 2021 Jeep Wrangler. As an OCD electrical engineer, I’m particular about wiring, and wasn’t thrilled about the “through the chassis frame” approach in the etrailer.com videos. Instead, after downloading the reading the installations for the OEM’s wiring kit, I choose to install the wiring through the cabin with existing wiring. The OEM kit installs on the passenger side, but since I was also installing a Brake Buddy Stealth system and needed to run wires along the driver side, I choose to go that route. Since I was pulling interior trim pieces in the vicinity of the side air bags and the seat belt locking mechanisms, I first disconnected and isolated the neutral battery connections. Bottom line, everything works and I ended up with a very clean installation. I’m considering now connecting the third high brake light and the license plate light. A project for another day...
Arrived promptly. Easy to install. Only issue is there was not enough wire to jump the tail light diodes. Had to supply my own. Installed in tandem with a brake light relay (RM-88400) that prevents the tail lights activating in tow mode when the Even Brake supplemental braking system depresses the brake pedal. Reduces the risk of draining the battery while being towed, as the lights run off the tow vehicle without interfering with the towed vehicles electronics. Far superior to the magnetic light set I have been using.
It works great. I use my CRV to be my tow vehicle for my RV and use it to tow my kayak trailer. This kit made the wiring job easy for both and after 1 year it’s been perfect
With the help of your videos it was very easy to install and it works very well.
Works great, wire was short for the right tail light. Added a piece and lights work properly when connected to the motor coach.
They are very well made. Haven’t been able to install yet (just moved in to new house) will give an update as soon as I have
Instructions were not complete or clear, caused rework
I have ordered from etrailer for years and why I come back is I know from experience the type of service they provide!
Looks like a quality product. Haven't read the instructions yet, but it looks like a simple install.
I installed this harness on our 2019 CR-V. Pretty simple install, just followed the instructions. Ran the harness inside the rear bumper and the plastic covers under the car all the way to the front so nothing is exposed. Plugs into the tow dolly harness so I have full function of tail and brake lights and turn signals on the car controlled from the motorhome.
Thank you etrailer for the excellent service from the sales team to the warehouse!! I will continue to buy from etrailer!!
The installer thought this was an excellent kit.
Simple to follow installation instructi ons.
This wiring kit is very easy to install. The YouTube videos are very helpful. We installed it on our 1999 Dodge Durango. Works like a charm.
This isn't the first time I've installed a wiring harness and this one was a nice one (I thought). But I am having problems with the right light (both brake and running light). I've tried calling and talking to your customer support with no answer! I've found if I turn on my lights, at least the running lights all work (but not the brake light or turn signal). I'm thinking it's a grounding problem, but haven't been able to fix it so may have to try someone else's wiring harness.
Mike L - 02/28/2019Worked great. Not hard to install. Wish the kit came with a fuse disconnect switch.
I installed the wiring harness yesterday and it took about 4 hours. Thats actually 4 hours of work, in reality it was more like 6 hours but most of the time was trying to figure out how to route the wiring which is not the fault of the harness. Everything worked as advertised with no gotchya's or any issues which was really surprising. I installed it on a 2009 Smart fortwo Passion which I am towing behind my motorhome. My advice for anyone using this is take your time, read the directions carefully before you start and follow them step by step and you should have no issues.
Dave V - 12/12/2017This wiring kit worked marvelously. I'm pretty handy but electrical things can still be a bit scary for me. I got a little help from the good etrailer people, watched a bunch of videos and finally looked at the wiring diagram sent with the kit. Wiring diagrams are not always as straight forward as I would like but this kit has a very good one. I have bought a handful of products from etrailer and consider them to be a cut above. Julie
Julie W - 01/08/2018Great product, I did use my own black split loom for the entire length of the trailer wire on my towed Jeep (for appearance mostly). The diodes look heavy duty and well made.
Have not had any problems with this device , I done research prior to buying it .
Best customer service and the products are amazing and a great quality. Would order from them again.
Do you have a question about this Tow Bar Wiring?
Info for this part was:
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. Let us know if anything is missing or if you have any questions.
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.