Get lights for towing your vehicle without splicing into its wiring. Magnetic light kit provides a pair of stop, turn, and tail lights. Mounts using large, heavy-duty magnets for increased stability. Plugs in at rear of your motor home. Lowest Prices for the best tow bar wiring from Optronics. Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector part number TL21RK can be ordered online at etrailer.com or call 800-298-8924 for expert service.
$34.95
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Tow Bar Wiring > Bypasses Vehicle Wiring > Removable Tail Light Kit > Universal > Magnetic Mount > Red > Optronics

Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector

Optronics Tow Bar Wiring

(25 reviews)


Code:   TL21RK

Price:$34.95


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Shipping Weight: 3 pounds

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Optronics Tow Bar Wiring - TL21RK

Get lights for towing your vehicle without splicing into its wiring. Magnetic light kit provides a pair of stop, turn, and tail lights. Mounts using large, heavy-duty magnets for increased stability. Plugs in at rear of your motor home.


Features:

  • Light kit allows you to bypass your vehicle's wiring to provide temporary lights for your towed car
    • Can also be used as trailer lights
  • 2 Red lights act as brake, tail, and turn signal lights
  • Magnetic bases let you easily mount lights on trunk or roof of your car
    • Large, heavy-duty magnets provide excellent stability
  • Wishbone-style wiring harness can be easily routed beneath car
  • 4-Pole flat connector on harness is designed to hook up to your RV's 4-way trailer connector
  • Separate, 3' long harness with 4-way can be wired into tow vehicle or RV if no trailer connector is present
    • Includes quick-splice connectors for simple installation
  • Department of Transportation compliant


Specs:

  • Wiring harness length: 20'
  • Wire length between lights: 4-1/2'
  • Separate wire with 4-way for tow vehicle: 3'
  • Bulb type: 2057 double filament
  • 3-Year limited warranty on housing and wiring only


A towed car is required by law to have functional brake and signal lights that illuminate at the same time as the brake and signal lights on the RV that is towing it. Most wiring kits require you to splice into your vehicle's electrical system to install diodes, but doing this can void your manufacturer's warranty. You also run the risk of making a mistake during installation that could result in potentially damaging electrical feedback. Magnetic tow lights eliminate this problem because they bypass your car's electrical system entirely and leave your wiring intact. Just mount the lights on your vehicle's trunk or roof with the heavy-duty magnetic bases. Then run the wiring harness up to the front of your towed car, across your tow bar, and then connect it to the 4-way flat on your motor home or tow vehicle. If your tow vehicle doesn't have a 4-way, an adapter is required.


This kit includes a 20' long wishbone-style wiring harness with a 4-way flat connector on the end. A separate 3' wiring harness with a 4-way plug can be used to install a 4-way on your tow vehicle or RV if it does not already have a trailer connector. Quick-splice connectors are included if needed. A 4-1/2' long harness connects both lights, giving you enough slack to position the lights where you want them.



TL-21RK Optronics Magnetic Mount Stop, Turn, and Tail Towing Light Kit w 20' Wiring Harness








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Video of Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector


Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.




Video Transcript for Optronics Trailer Lights TL21RK Review

Today, we're going to review Part Number TL21RK. These are the Optronics Magnetic Mount Stop, Turn and Tail Towing Light Kit with the 20-foot Wiring Harness. This is a temporary magnetic towing light kit that includes the two stop and turn tail lights, the 20-foot trailer wiring harness and a stand-along three foot long four way vehicle-end connector, in case your vehicle doesnt have one. It comes with the quick connectors to attach the four-way to the vehicle if needed in the instructions. This does come with a limited three year warranty. Now, that warranty does exclude the bulbs.

It is magnetic mount, so you can just attach this to, if youre towing a vehicle, if youtr flat-towing the vehicle and you dont do it very much and you just need to use the lights a few times, you can use this magnetic mount. You can use it on the trailer if you have a trailer that doesnt have lights and you might need to use it at night. Basically, this magnetic mount, I have a piece of metal here. You can see it will attach to it and stays pretty firm to it. Its got a good pull to it, pretty hard to detach it.

You just put one of these on each side. The cord here is about four-foot, so they will spread out four-foot width. Now, I do want to show this does come with this 20-foot wiring harness. It has a trailer connector that where you plug into the vehicle-end four-way if your vehicle has one or if you attach this one to it. To give example of the brightness of the lights, I have a four-way vehicle-end connector attached to a power source.

Im going to give you an idea. Ill plug this in; we turn on the tail lights. This is what the tail lights would look like. Now, Im going turn off the overhead lights to give you an idea how bright they are in somewhat darkness. Then if you apply the brakes, as you can see, thats with the brakes and if we do a turn signal, I want to give you an idea of just the turn signal.

Thats how the turn signal would look like. Now, well go ahead and turn off or turn back on the overhead lights. That should do it for the review of the Part Number TL21RK. This is the Optronics Magnetic Mount Stop, Turn and Tail Towing Light Kit with the 20-foot Wiring Harness.


Customer Reviews

Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector - TL21RK

Average Customer Rating:  4.8 out of 5 stars   (25 Customer Reviews)


Get lights for towing your vehicle without splicing into its wiring. Magnetic light kit provides a pair of stop, turn, and tail lights. Mounts using large, heavy-duty magnets for increased stability. Plugs in at rear of your motor home.


- TL21RK

by: Nick08/25/2012


I am using these for added visibility on the back of a large bike rack that pretty much stays on the car all the time. I do not suggest using the magnets as the only form of attachment as they are not strong enough to keep the lights attached when going over bumps. I zip-tied them to the frame of the bike rack. At first, I had them sticking out from the bottom of the rack, and they were fine until I went up a steep hill and one of the lights got knocked off on the road. These lights are extremely well-built because instead of snapping the light, the rather large zip-ties broke. The light still works great after the incident. I now have them sticking out the sides to give more ground clearance, and they seem to be doing fine. For my application, I had to replace the wire between the lights with a longer one, but that was not difficult and will not be necessary in a typical application. At least the lights are easy to disassemble to access the wiring. The only way these could be improved would be to add strong neodymium magnets and to make the red lenses screw on (instead of snapping on) for easier access to the bulbs for replacement. Otherwise, a perfect product. For the record, I did not need to use the included vehicle wiring harness or splice connectors, since my application required an electronic light controller. 53035



- TL21RK

by: Steelhead07/11/2015


works great for towing my jeep. just plug the four flat into the factory trailer wiring on the tow vehicle, set the lights on the bumper and they work perfect. the magnets are strong but the thicker the metal they are on the better they hold. steel on my bumper is thick enough for a strong hold but I tried thinner metal and the hold is weaker so you may need to add some straps 211070


Comments

one year later and still working perfect

Steelhead - 07/11/2016

19319



- TL21RK

by: Bo01/03/2013


Everything needed for my application. Easily moved from tow dolly mount to fender of vehicle being towed. 62410


Comments

One-and-a-half years later I am still using the tow lights regularly and they still work and look great!

Bo - 07/04/2014

5319

- TL21RK

by: Michael L.01/06/2012


I purchased a Curt hitch for my 09 CRV. I also bought a wiring harness and a set of magnetic lights for attachment to vehicles. I was able to install the hitch in less than an hour. It took me 30 minutes to connect the wiring. The lights are very simple to connect and only hook up one way. The instructions included links to videos that made the job a snap. The instructions said to put the wiring inside the car by the spare tire when not in use to preserve the connector. what a great suggestion! I did not put a single mark on the car and the hitch looks great. 29217



- TL21RK

by: Doug Q05/28/2013


Perfect, just what we needed to get our trailer home from storage so I could work on the finding the root cause for the failure of the permanent trailer lights. Now that the permanent lights have been fixed, the temporary magnetic lights are stored with the trailer sort of like a spare tire, knowing how fiddly trailer wiring can sometimes be. It's worth the small investment for the extra measure of safety in case the permanent trailer lights fail again far from home. 82108



- TL21RK

by: Steve S-omaha09/17/2016


After struggling with my trailer lighting system for years, I gave up and bought a portable system from etrailer. Within 5 minutes of unwrapping it, everything worked great and I am not longer spending hours trying to trouble shoot the old system. The magnets that hold the lights on the trailer are very strong, but I still use a bungy cord on each one just in case I hit a large bump in the road. Thanks etrailer, excellent product! 295763



- TL21RK

by: Silver Bullet06/20/2015


Speed of delivery was great and the product was exactly what I expected. Surprisingly, the magnets hold really well, I was concerned the lights might fall off when I went over a large bump. The wiring was smaller/thinner grade than the wiring in my vehicle, but that did not present any issues. All in all, this was worth the small investment. Quick and easy. 205882



- TL21RK

by: Bill T07/08/2014


I needed to move a trailer to a location where I could troubleshoot and repair the trailer lights. Worked well, good price, and reasonable shipping cost, After I had used the lights I happened to see a similar setup at Walmart which was $10 MORE than the total I paid etrailer. 140114



- TL21RK

by: tfs07/04/2016


Strong magnets hold the lights in place even on a bouncy trailer. Lead wire length is sufficient for the average towing vehicle or trailer. My only complaint is that the wire length between the two lights needs to be a foot longer for my uses. 268014



- TL21RK

by: Neil B06/03/2015

2013 Dodge Ram


Purchased the 10" drop/ rise receiver to make hooking up the tow bar to my jeep level. My jeep has 4" of lift on 33's and the truck is a stock 2013 dodge ram. This receiver leveled them perfectly. The light kit I purchased also works great. 200064



- TL21RK

by: Aaron P.11/19/2014


Attached to a bed extender for kayak hauling. Magnets are strong enough but used zip ties as extra security precaution. My vehicle is prewired for flat or round connection. Lights were all "plug and play" for me. Served my purpose very well. 161810



- TL21RK

by: Robert O04/17/2012


I was surprised that it was shipped as quick as it was. The lights were a better quality then I thought they would be. I will use the site when other towing accessories are needed. Thanks for the speedy service and great quality product. 37507



- TL21RK

by: Rick P10/21/2015


Product is fine. Magnetic temporary trailer lights I am going to fit to a hitch mount bike rack. As usual etrailer sets the industry standard for fast, complete customer service. So many companies could learn from you. 230437



- TL21RK

by: Mike E01/31/2015


Excellent service-delivery was fast and product was exactly what I expected. Customer service was very helpful. Would highly recommend this company and will use in the future. 172008



- TL21RK

by: Doug M.04/07/2014


as always, etrailer shipped a great item very quickly. It was exactly what they stated it was. Looking forward to a road trip to take full advantage of the light kit. 124111



- TL21RK

by: velvet04/25/2016


They work great! Very strong magnets, bright lights, and plenty of wire. We use them on our utility trailer and our horse trailer! 246868



- TL21RK

by: Leroy_Q06/08/2010


Easy to use and works great Purchased in an emergency towing situation and they worked out great. Was easy to hook up and use. 3115



- TL21RK

by: John07/14/2013


Wiring not long enough to reach back of towing vehicle. Plug did not fit. Had to trim plastic okug to make it fit 89468



- TL21RK

by: john m11/01/2012


products look great; the package arrived in record time too. Will definitely be a repeat customer. 58610



- TL21RK

by: Mike W.07/08/2015


The trailer light kit is just what i needed and the price was right. Thanks! 210119



- TL21RK

by: Jon02/08/2013


Easy Transaction, quality product, super fast shipping. A+ all the way. 65455



- TL21RK

by: jim f.10/22/2013


Totally what I was hoping it would be. The magnets seem very strong. 104681



- TL21RK

by: Roger N10/16/2014


Its exactly what I needed. Great quality, fast delivery! 156256



- TL21RK

by: scott08/27/2013


awesome product with simple plug and play install. 97127



- TL21RK

by: blank03/26/2015


Easy to set up and install 180954

25
25


Ask the Experts about this Optronics Tow Bar Wiring
Do you have a question about this Tow Bar Wiring?


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  • We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. This helps you get the right product the first time.
  • Every day our teams test, review, assemble and install our products. Our modern installation facilities allow our expert installers and customer service representatives to actually install and use the items we sell, so you can get real advice, from a real person who has the knowledge and expertise needed to solve your problem.

Most detailed, accurate tow bar wiring information available.

  • Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.

Information for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Written by:
Tyler C
Expert Research:
Robert G
Expert Research:
Michael H
Updated by:
Tricia G
Expert Research:
Jameson C
Video by:
Joshua S
Video Edited:
Jacob T
Updated by:
Adele M
Expert Research:
Adam R
Photos by:
Amber A
Installed by:
Andrew S

Installations, made easy.

  • We love helping people.
  • We have the most highly trained customer service, hands-on experience, step by step videos and installation instructions. We are prepared to answer any question, give advice, or troubleshoot any problem you come across.

Fast shipping.


Personalized service for life.

  • We provide one-on-one, personalized service from the ordering process through the life of your product.

Trusted since 1946.

  • We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.

Info for this part was:


Photos by:
Theodore B

Expert Research:
Michael L

Written by:
Tyler C

Expert Research:
Robert G

Expert Research:
Michael H

Updated by:
Tricia G

Expert Research:
Jameson C

Video by:
Joshua S

Video Edited:
Jacob T

Updated by:
Adele M

Expert Research:
Adam R

Photos by:
Amber A

Installed by:
Andrew S

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.







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