Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.
Use your towed car's signal lights without tapping into its wiring. This self-contained wiring kit bypasses your vehicle's electrical system, eliminating any concerns over violating the manufacturer's warranty.
Note: Towed car must have enough room inside the tail light lens housing for an extra bulb and socket.
Video of Roadmaster Tail Light Wiring Kit with Bulbs
Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.
Today we're going to be taking a look at part number RM-155. This is the road master taillight wiring kit with the included sockets and bulbs. This kit is going to let you use your toed vehicles, brake, running and signal lights without taping into the vehicle wiring. Please note, to get this installed your toed vehicle must have enough room inside the tail light lens housing for an extra bulb and socket assembly. The size hold that you're going to need in order to get the socket mounted in the taillight housing is going to be one inch in diameter. You can use a one inch hole saw or a rotary cutting tool to make that hole. When you're installing this your wiring is going to be routed beneath the vehicle.
It's going to come with the protective wire loom, you're going to get three feet of this loom to protect certain areas of the wiring from sharp edges. All you have to do is simply cut the length that you need and fit if over your wires to protect the wiring from those sharp areas. This unit does maintain the manufacturers warranty on toed vehicles by avoiding any involvement, whether it's a logical system, the overall measurement of the bold measuring from the very base to here at the end of the lens, that's going to give us a measurement of about two in one quarter of an inch. Measuring from the flanks to the top of the bulb is going to be about two inches and the bulb type that this system uses 1157. It's going to include all the necessary wiring. You're going to get a harness right here, this is going to be 30 feet long, it's got the dust caps on the connectors and this is going to be your female connectors on both sides.
You're going to get the 30 feet long wiring. You're also going to get the six foot long wiring, again wiring connectors. They're going to be your main lenses, it's going to be the hardest it runs in between the back of the RV and the toed vehicle. You're going to get three feet of half inch split loom, you're going to get the two lights and the sockets, you're going to have about eight inches of wiring coming out the back of the sockets, you're going to get all necessary connectors. You're going to get the blue connectors for single wire connections, these are your butt connectors. You're going to get yellow butt connectors for two wire connections and you're going to get a small ring terminal to make your ground connection.
You're going to get zip ties to tidy up any wires underneath the vehicle and you're going to get the included instructions. These are going to walk you through the installation process step by step. The kit is made in the USA. Now when it comes to the installation you will need to gain access to the back of both taillight assemblies. You're going to need to find a suitable location to mount the bulb and socket inside the tail light housings. The bulb socket must be installed underneath red lenses and it must at least be a quarter inch clear between the bulbs and the lenses.
You'll need to drill out that one end circular hole through the back of the taillight housings. Right here around the flange it's going to have spring loaded taps that encircle the socket, you'll need to bend those outward slightly, snap the bulb into the hole that you just drilled and that's going to provide the nice tight fit that we need to make sure these don't vibrate loose and come out of the taillight housing. Then you're going to need to attach one end of the 30 foot harness at the front of the vehicle for connecting the URV, at the other end of the 30 foot harness you can cut off the connector. This is going to be the end that's going to run to the back of the vehicle, that's the taillight assemblies for connecting the end of the bulb and socket wiring. Again you're going to route the wiring beneath the vehicle and you can use the included zip tires just to straight the wires up and out of the way. Then you would use the included butt connectors to attach the electrical harness to the taillights, you will need to reinstall everything, make your ground connection and clean up your installation and then you're going to be ready to connect your six foot wiring harness between the plug at the front end of the vehicle and the back of your URV. Again, instructions are included, very detailed, they're going to walk you through the entire installation process step by step. That's going to do it for our review of part number RM-155. This is the road master taillight wiring kit with the bulb and sockets.
Average Customer Rating: 4.6 out of 5 stars (81 Customer Reviews)Use your towed car's signal lights without tapping into its wiring. This self-contained wiring kit bypasses your vehicle's electrical system, eliminating any concerns over violating the manufacturer's warranty.
Found this item was wired with the brake lights for the brown wires and turn/running lights for colored wires and this fact kept me from getting this done very rapidly. Once identified, went together really nicely and actually grounded to frame for higher light output. I upgraded 3 wire into 2 wire converter with "Roadmaster Brite-lite 3 to 2 Wiring Converter" and they are as bright as the lights already in the housing. Except for that wiring issue, it would have been excellent. As to performance after install, great. Customer service was nice from Roadmaster as well. Did receive a call back message from etrailer a couple days later. 86819
by: Christopher S.08/23/2015
I purchased this wiring kit for use in my 1999 Mazda Miata. I did not want to cut into the OEM wiring harness, even using the diode method to safeguard the system. I felt that the fully separate wiring harness was more to my way of thinking for getting my car ready to tow. I did not follow the included instructions that said to run the flat 4 wiring beneath the car, zip tying it along the way free of the exhaust and moving parts. I ran it through the firewall, beneath the dash, under the center console, and under the carpeting back into the trunk area. I then installed the bulb holders as instructed in my OEM Miata taillight fixtures. I am happy to have all the wiring up and out of the way of potential road hazard damage, as well as the hot and/or moving parts beneath the car. It works perfectly, and I am glad that I purchased this kit, and also that I decided to install it the way I felt best to do so. It took much longer my way, but I'll never have to mess with it again. 221250
Good instructions. Everything need is included for 4flat connections. One bulb socket arrived with the ground (black) wire loose in the bag. The solder joint had failed. Resoldered but had to remove the other wires and rubber insert from the bulb socket to avoid melting. Not a shining example for Roadmaster. 147006
by: Frank S.05/25/2013
Great idea. After years of towing with magnetic lights now all I have to do is plug it in, and I'm done. The kit kit comes with more parts and wire than I needed and was simple to install on my 2010 JK. 81930
by: Scott D.11/12/2014
Overall, pretty happy with this product. I found the quality of the product to be very good. I was lucky in that I own the same year and model car as in the installation video on the etrailer.com website, so following along was fairly easy. It took my 15 year old son and I about 2 hours to install. Most of that was trying to run the cable underneath the car, which is very low to the ground even when jacked up. I would have preferred to run the cable through the interior, but was not able to locate an adequate entry point into the cabin. Overall, installation is pretty straight forward. It might be more difficult for vehicles who's entire light fixture can not be removed. The product works great and as expected. 160603
by: Kim P.01/20/2015
This kit really simplifies wiring tail lights on a vehicle that will be towed. No cutting into the vehicle's wiring and adding isolation diodes. Very functional and easy to install. 170597
Arrived in perfect condition and very quickly (3 Days) for reg. shipping. Thanks much. 59116
by: Jorn V.11/25/2014
I knew I didn't want to deal with magnetic lights for towing my Jeep behind the RV so I purchased this Roadmaster kit. I was a little apprehensive since I have virtually no knowledge with electricity. However, installation of this kit on my 2002 Jeep Wrangler was a breeze! It took me (by myself) about 3 hours of working slowly (to make sure I wasn't cutting the wrong wire!) and frequently checking the installation video on this website. The most difficult thing included in the installation is to make two holes to fit the bulbs; for this you'll need to probably go out and buy a hole saw from HD or Lowe's. Great product, easy installation! 162459
Easy install, work great! Wire connectors could be better. 120129
by: Bill B12/08/2014
everything I needed to hook up my tow l ights. 163584
by: R Phares06/15/2015
I purchased a rm-155 wire and bulb set-up to install in my 2015 jeep rubicon unlimited hard rock. I could not get confirmation that it would fit .I took a chance and purchased it. It was a perfect fit.I ran the wires around the passenger side of the engine and thru the floor plug and followed the wire loom to the right rear and down the rubber plug following the wires to tail light.I then crossed over to the left tail light by drilling thru the foam and plastic plug at the bottom of the taillight chamber. 203535
This product was easy to install but it took some time routing the wiring harness from the front bumper to the rear. Pick up some extra zip ties, you will need several. The lighting system is independent allowing for the use of LED bulbs. Great product. 239278
by: Tom M07/14/2016
Product was as stated in the Viedo. Needed tools defined although I used a flat blade 1" drill instead of a Hole Saw but it worked just as well. My Frontier had a small hole already in the lamp assembly and it worked as a pilot hole. The one thing that might be changed was the difference between the written work sheet and the Video. In any case the unit went in well and looks like it will be what I needed on my toad. Thanks for the unit. 271767
by: Ron M07/11/2013
Very simple to install. I had plenty of room for another bulb. One downside was the 1inch hole they have you drill is not large enough for the bulb to go thru so I had to ream the hole a little. 88844
by: Gary Y08/18/2016
I like this product and would definitely buy it again. I like not having to splice into the vehicle wiring and install diodes, etc. It is a clean installation with good instructions. All I have to do to hook up the lights is raise the hood of the towed car and pull out the pigtail and hook it to the motorhome. It is powered by the motorhome and does not run down the battery in the towed car. Great product. 285105
Bulb kit included everything needed. Plenty of wire sent. Did not use supplied 4 wire connectors, used HM47056 for toad to motor home connection. Ran wires inside cab along with Invisibrake lines. Fast delivery. Good price. 2002 Jeep Grand Cherokee Limited. Jeep had available spot to place bulbs in rear tail light lens at lower portion. Easy install once wires were run. 234587
It eas a bit more complicted to install than I had expected. Could benefit from a more through set of instructions. I installed the harness on a 2003 Jeep Wrangler, and had to fabricate several metal fittings due to aftermarket products previously installed on the Jeep. Overall I am satisfied with the product. 203454
by: Jeff Shaeffer10/22/2013
I ordered tow light kit RM155 for my Jeep Wrangler so we can tow it behind the motorhome. The kit was shipped imeadiately after my order was placed,and was at my doorstep within 5 working days. The installation was easy,the instructions were easy to follow. I couldn't be happier with the Quality and service. 104785
I order Blue ox base plate bracket kit BX 88230 and light kit RM-155 for my 1995 jeep so I can tow it with my motor home price was great shipping was Quick . They were easy to install and made of good quality .The kits had great instructions I am very happy with purchase William in CA. 254234
by: Glyn L04/29/2015
Fast delivery and received exactly as ordered. Just installed it today and it was very easy to do by just following the instructions packaged with it. I have received and used other parts from this supplier and have always been totally satisfied with all aspects of the purchases. 188809
The wire supplied with the kit was insufficient for the job. I followed the video on wiring the 2010 CRV and needed to purchase additional 12 feet to complete the job to reach from the passenger side to the drivers side of the tail light assemble. Would not recommend . 248811
by: Steven Hosford07/22/2011
I ordered a (tow) brake system and wiring kit for my Jeep GC to facilitate towing this vehicle behind my motorhome. The service was great, delivery was quick, and the products were as advertized with no suprises. I would certainly buy from these folks in the future. 19857
by: KENNY G.02/21/2011
JUST A SHORT NOTE TO CONFIRM THAT I HAVE RECEIVED THE BASEPLATE AND WIREING HARNESS FOR MY TOW VEHICLE! THE SERVICE WAS FANTASTIC, AS WAS THE PRICE! I WILL DO BUSINESS WITH ETRAILER WHENEVER I NEED THE PRODUCTS YOU SELL. THANKS AGAIN KENNY 7532
Works as advertized. Easy install...just make sure you have 2 inches between your exsisting bulb and the kit bulbs. Not enough wire though....I had to go buy a 6' lenght to run from taillight to taillight. Hence the GOOD rating. 11557
by: W. Dore 07/19/2016
Great product, not a bad install and works great. I chose to cut off both 4 flat connectors and I installed a 4 round connector with spring cover on the front of my CRV. Looks and work out great. 273698
by: wiring kit06/17/2013
enough wire to complete the job on a Wrangler, Followed the Blue Ox drill reccomendation from the mount plate and worked perfectly. Maybe a little pricie for what you get but its all together. 84968
by: Danny M.06/20/2014
On the 2014 jeep wrangled, the lenses are one piece sealed so there isn't a good way to drill the hole because if you make it big enough for the bulb to fit through, the socket is loose. 136722
by: Bill R.05/15/2014
etrailer is simply the BEST. The Roadmaster Universal Wiring Kit Product is excellent and simple to install thanks to the great instructions and etrailers how to video is right on. 130802
Installation was straightforward and fairly simple. The hardest part was finding a routing for the wire to stay away from moving parts. That will be different for each vehicle. 253244
by: Ron S.06/15/2016
Good materials and instructions. There is a YouTube video that is very helpful. I would have liked a longer connector that goes between the motor coach and the towed vehicle. 261542
by: Ken S.03/05/2016
Very easy to install. I like the idea that it is independent from my other lights and don't have to worry about crossover/feedback if I tapped into my regular system 239746
by: Larry H.10/13/2013
Hard to install on 2013 Jeep Grand Cherokee as it is very difficult to determine where to drill so you have clearance and don't drill in to something vital. 103638
by: John G.03/05/2011
received very fast and the instructions with the kit were very easy to understand. Making the wiring job of my dinghy easy and simple. Thank You 8531
by: Dan L07/01/2015
Took 90 Min to install after watching the video. Installed on 2013 Jeep Wrangler Unlimited Sarah and connected to Winnebago Adventurer. No problems at all. 208730
by: Bob G.03/25/2011
Roadmaster products are all very well made and have excellent instructions and are easy to install.....very good products with great customer service. 10373
by: Allen G.03/05/2013
I haven't installed the kit yet but it looks good. I did install the base plate I ordered from you. It went together will. Thanks a lot, Allen 69030
Easy install with very good instructions. The wiring did run short and I had to go purchase and extra 10 feet of wire to run between lights. 12669
by: David B.06/04/2016
Just what I needed for my 2003 Jeep Wrangler, the video on your web site was excellent, don't think I would have made it without the video. 256816
Perfect product for my needs. Going to be fun just installing it! Great product and GREAT SERVICE from etrailer.com. Thanks again! 75792
by: Kerry St Piere07/19/2012
Easy installation but wire was too short had to purchase more. Over priced for what you get. Lights are not as bright as expected. 48538
by: Glen B02/02/2011
Excellent service and right on. Needed it quick and got it fast without asking for special delivery. Thanks, Happy Customer 6548
by: Wire harness08/12/2014
You save me a lot of time .. instead of making my own harness, I can readily install a etrailer harness made for my vehicle 146286
by: Mike V.03/23/2013
Good directions, straight-forward installation. Quality of bulb sockets is average, but rest of kit is highy quality. 72098
Product arrived promptly. Installation was simple. The hardest part was running the wire inside the frame rail. 148717
This product worked exactly like claimed. Makes it so much easier to hook up my jeep to my tow vehicle. Thanks 239424
by: Thomas T.08/05/2013
it take a little longer for me to installed light, but I like it. I will highly recomment this product. 93362
Simple installation, and much easier than messing with magnet lights. Video instructions were spot on! 159368
by: Dan M.03/16/2015
All the parts needed in one package and the video regarding installation was extremely helpful 178535
by: Louis E.07/16/2012
Everything I ordered was shipped and I have already wired our Yaris for our RV lights to work. 48152
by: Chuck C.08/14/2016
Easy to install with some mechanical background and tools. Quick delivery. Good price. 283725
Ask the Experts about this Roadmaster Tow Bar Wiring
Do you have a question about this Tow Bar Wiring?
At etrailer.com we guarantee:
Highest quality tow bar wiring for the best price.
Real product know-how.
Most detailed, accurate tow bar wiring information available.
Information for this part was:
Installations, made easy.
Personalized service for life.
Trusted since 1946.
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.