1. Tow Bar Wiring
  2. Dodge
  3. Ram Pickup
  4. 1995
  5. Optronics
FITS 1995 Dodge Ram Pickup
Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector

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

Item # TL21RK
lowest price pledge
Our Price: $43.59
You Save: 42%
Tow Bar Wiring
Confirmed to Fit
1995 Dodge Ram Pickup

All Models

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Orders above $99 qualify for Free Shipping
Shipping Weight: 3 lbs
*Attributes in bold are required.
In Stock, Ships Today
Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector Magnetic Mount TL21RK
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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.

Product Images

In Use/Installed

Customer Photos

The best technical support and full tow bar wiring installation instructions. Lowest price Ram Pickup tow bar wiring guarantee and expert service. Dodge Ram Pickup, 1995 tow bar wiring by Optronics are available from etrailer.com. For expert service call 800-298-8924 to order your Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector part number TL21RK, or order online at etrailer.com.
  • All Info
  • Reviews (71)
  • Q & A (335)
  • Videos (2)
  • Photos
  • Why etrailer?

1995 Dodge Ram Pickup - Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector

  • Removable Tail Light Kit
  • Bypasses Vehicle Wiring
  • Optronics
  • Magnetic Mount
  • Universal
  • 20 Foot Long Harness

Get lights for towing your Dodge Ram Pickup 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.


  • 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


  • 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.

TL21RK Optronics Magnetic Mount Stop, Turn, and Tail Towing Light Kit w 20' Wiring Harness

Alternate part number: TL-21RK

California residents: click here

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 Heavy Duty Magnetic Tow Lights Review

Announcer: Today we'll be taking a look at the Optronics Heavy Duty Magnetic Tow Lights for a 4 flat trailer connector, part number TL21RK.Demonstrater: Here's what it looks like once it's installed. They have a nice, sturdy base, magnetic base, that's going to make it stay on the car. They are designed to fit into a 4 flat on the back of your RV. You're going to have 1 single red light on each side. It's going to act as your turn signal, your tail light, and your brake light. It will affix to any metal surface, such as your roof or a trunk.

It's a very easy, quick install. In this case, we are adding them in unison with the tow package that we have that uses the factory tail lights. In this case, our customer has a bike rack attached to the back of their towed vehicle. We want to make sure that people are able to see their tail lights, which might be obstructed a little bit by our bike rack, so we're going to have a little added security by having the lights on the roof as well. This is what our kit is going to consist of. Our 2 magnetic lights, 20 feet of cable to attach to your vehicle, 4 flat. It also comes with a 3 foot harness of your vehicle is not equipped with a 4 flat connector that you can tie into with the provided quick connects. Now, let me run over some features I'm going to go ahead and show you how to install them.

We're going to take our left light, which is the one with the single wire, denoted with the yellow, place it on our car. You want to just place it and let it snap down. Careful not to drag it across your paint, possibly scratching it. Then we can place our right turn signal on. Then we ca start running our wire to the front of our vehicle.

We went ahead and attached the wiring and bunched it up in the middle of our car with a zip tie just to keep it all together, and we just went ahead and routed it along our roof rack. We kind of weave in and out to zig-zag it and keep it from falling off the side of the car. Brought it down, we put it between the windshield wiper and the arm, just to keep it in place so it can't some off the sides. We went underneath our guardian, following our towed vehicle wiring harness, then plugged it into our 4 flat receptacle. Now we can test our running lights, our left turn signal, and our right turn signal, and our brakes. That's going to do it for a look at the Optronics Heavy Duty Magnetic Tail Lights for a 4 flat trailer connector, part number TL21RK.

Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (71 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

Product was exactly as described, but more importantly the response from these folks are awesome! I have purchased other items and the support is great! I will continue to purchase items and their inventory is always growing. Thanks! 696994

- TL21RK
2018 Chevrolet Silverado 3500

I am sure this will bee handy. Much easier to put these lights on, and bring the trailer home to be fixed, then to have to worry about fixing the lights in the field. Looks to be a quality product, and etrailer has excellent pricing. 552845

- TL21RK

Wayne H. was very helpful in my choices. 305176

- TL21RK

The magnets didn't stay on the car so I ended up permanently gluing them to my roof since we tow our car behind the rv full time. Had to replace the bulbs with LED bulbs since our rv tail lights couldn't supply enough voltage to the incandescent bulbs to see them in daytime. This isn't a failure of the product but rather an undiagnosed voltage problem with our rv. With those modifications I am happy with it. 455021

- TL21RK

etrailer was easy to order from and shipping was fast. However, I ordered this specific light set to fit my standard 4-way flat connection that already exists on my trailer and did not plan on doing any wiring on my truck. Unfortunately, it does not fit. I will have to buy a converter or something I guess. I emailed them with this issue asking if this light is not a standard 4-way flat and haven't received a response. Seems to be a nice sturdy light set. Doesn't help when I can't use it, though. 413367

- TL21RK
Jeep Liberty

They say that a company is only as good as its employees... Well, etrailer is extremely fortunate to have someone like Shawn B. Working for them! This young lady got me out of a really frustrating predicament, and through careful listening and asking the right questions, she saved me not only a ton of money, but a whole bunch of frustration as well! My dilemma was that I had purchased a Jeep Liberty with a Blue Ox base plate, but I had a Blackhawk 2 tow bar! I thought I was going to have to go out and buy a Blue Ox tow bar to use with the Blue Ox base plate, but through careful review of my situation, and a calm analytical approach, this young lady determined exactly what I needed in the way of adapters and a towing light set up! Today, more than ever, it's all about customer service, and that is exactly what she provided for me! 463012

- TL21RK

Fast, friendly service. Delivery made in a very timely manner and complete. Recommend a % star. Been doing business with ETrailer for 5 Years and very satisfied with all products and service. 639247

- TL21RK

Best cost effective way to tow without splicing into the tow vehicles wire harness. 630976

- TL21RK

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

The product arrived quickly and was exactly as advertised. The light kit is the perfect solution for the car I tow behind my RV, but also use by itself. I like the fact that it is totally portable, mounts high up on the vehicle for good visibility and is quick and easy to install when needed. 391247

Worked perfect. I have since gone to anew vehicle with integrated light wiring. I sold the lights to a friend and he has been happy since!
Ed F - 06/09/2018


- TL21RK

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
2014 Chevrolet Silverado 1500

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

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

Great product with extremely strong magnets to hold them on . Could have been a bit brighter, fine at night but a little dim in daytlight. 595852

- TL21RK

Installed pics 692925

- TL21RK
2008 Honda CR-V

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

This product worked well. I had read some reviews that said the magnets were not strong enough. Mine stayed in place. 739193

- TL21RK

Prompt. Product exactly as advertised. Keep up the great work. 735813

- TL21RK
2012 Mini Clubman

Strong Magnets, Look good. Easy to use. 724955

- TL21RK

An nice lighting wiring kit totally eliminates wiring into tow vehicle wiring. 708459

- TL21RK

I tried the lights and they work well. 700062

- TL21RK

The folks at etrailer were very helpful answering questions and helping me find the right combination for what I needed. The order arrived on time and intact. I haven't had an opportunity to use the product yet but it appears to be of good quality as would be expected. 680528

- TL21RK

Great product. Magnets hold tight and plenty of wiring. I would definitely recommend. 653461

- TL21RK

Holds well and quick to set up and take off. 636713

- TL21RK
1997 Jeep Wrangler

Simple lights system that is very easy to use. 613365

Show More Reviews

Ask the Experts about this Optronics Tow Bar Wiring

  • Wiring to Flat Tow a 2019 Jeep Wrangler Behind a Motorhome
    Magnetic tow lights, like part # TL21RK, do their job just fine, are less expensive, and don't require much to setup so they're not a bad option by any means. The only real drawbacks to them is that you need to set them up or take them off each time you change from towing to driving the Jeep. They also have a chance of scratching the Jeep's paint since they're being attached to its surface each time. We often recommend them if you're not going to be towing the vehicle very often or if...
    view full answer...
  • Recommended Lighting and Braking Systems for Flat Towed 2012 Jeep Wrangler Sport JKU
    There are simple and cost-effective lighting solutions for towing your Jeep Wrangler that do not require drilling into your taillight housings. You can refer to the linked article for broad background information on all toad lighting options. I also linked an article that covers all the essentials of flat towing a vehicle. What I most-often recommend is a set of magnetic towing lights such as # TL21RK or one of the other similar items shown on the linked page. These have powerful magnetic...
    view full answer...
  • Brake Lights on Magnetic Trailer Lights Don't Function But Turn Signals Do
    I assume by "4 pin straight hook up trailer lights" you have a set of magnetic trailer lights like the Heavy Duty Magnetic Tow Lights part # TL21RK. If that is the case then the only things that would cause these not to function properly when using a 7 to 4-way adapter like the Pollak 7 Pole to 4 Way Connector Adapter part # PK12716 is if the motorhome's 7-way is not wired correctly, there is a bad ground on the 7-way/ lights or the lights themselves are faulty. I recommend you check...
    view full answer...
  • Recommended Tow Bar Wiring for 2016 Ford F-150
    You are correct that aluminum doesn't work well with magnets. The Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector # TL21RK can only be attached to the cab of your truck if you choose to use them or to a steel bumper. I recommend using the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56009 instead. This harness connects behind your tail lights to your factory harness and then you simply run the connector on the harness to the front...
    view full answer...
  • Recommendation for Adding Taillights to Rear of Hitch Mounted Bicycle Rack
    We don't offer anything purpose-built to install taillights on a hitch mounted bike rack, but you could effectively modify an existing system very easily. If your bike rack is steel, you could simply use a magnetic mount tow light like part # C-ATL20A. There would be some extra wire you'd need to bundle up and secure with zip ties, but the installation would be very simple. Another option would involve using a light kit designed for a cargo carrier. I'd recommend the # 59516 kit and...
    view full answer...
  • Is Brake Light Relay Needed for Even Brake System on Jeep Cherokee Using Magnetic Tow Lights
    The Brake Light Relay # RM-88400 is actually included in the Roadmaster Even Brake Supplemental Braking System # RM-9400, however if you are using magnetic tow lights like # TL21RK, the brake relay will not be needed. If you are still looking for a good set of magnetic tow lights, the Optronics # TL21RK mentioned above is a great option. These will give you a pair of stop, turn and tail lights without having to splice into the Jeep's wiring. I have attached an installation video on this...
    view full answer...
  • Wiring System for Flat Towing That Does Not Require Splicing on a 2016 Chevrolet Cruze
    To add taillights without splicing into the wiring of your 2016 Chevrolet Cruze while towing it you will need a removable kit like the Optronics Heavy Duty Magnetic Tow Lights # TL21RK. The lights connect to the Cruze magnetically and the 20 feet of wiring bypasses the vehicle's wiring altogether, plugging directly into a 4-way flat connector on your RV. A kit like this is the only way to avoid splicing on your vehicle. You will also need to remove fuses to tow the Cruze. Without...
    view full answer...
  • Need Base Plates and Magnetic Tow Light Kit for 2007 Mini Cooper Convertible
    I reviewed an online copy of the owners manual for the 2007 Mini Cooper. Page 114 indicates that the manual transmission model may be flat towed (with the gear shift in neutral) but that the automatic transmission version cannot be flat-towed without causing transmission damage. The automatic must be towed with the front wheels up off the ground as with a tow dolly like RoadMaster # RM-2000-1. If your 2007 Mini Cooper convertible is a manual we offer Roadmaster Base Plates # 521876-1....
    view full answer...
  • Troubleshooting Magnetic Light Kit for Blinkers Not Working Correctly
    I would check the connector of your tow vehicle and test it for voltage with a circuit tester like our # PTW2993. A magnetic towing light kit like the Optronics Tow Bar Lights # TL21RK that you referenced should be able to provide any and all tail light functions when installed correctly. It sounds like the problem is in the trailer connector of your tow vehicle. Using the # 3808 you should test for voltage on the 4-way on all of the circuits to make sure that your vehicle is wire correctly....
    view full answer...
  • Replacement Lens for the Heavy Duty Magnetic Tow Lights Part # TL21RK
    Yes, the replacement lens for the Heavy Duty Magnetic Tow Lights part # TL21RK is the Replacement Tail Light Lens part # A52RB. I called my contact at Optronics to confirm this.
    view full answer...
  • What is Gauge of Wire in Heavy Duty Magnetic Tow Lights # TL21RK
    The gauge of the wire in the Heavy Duty Magnetic Tow Lights # TL21RK is 18 gauge so it would be what you are looking for.
    view full answer...
  • Availability of Custom Tow Bar Wiring Harness for 2018 Ford Focus Titanium Hatchback
    We do have a large selection of tow bar wiring kits that are confirmed to fit your 2018 Ford Focus Titanium Hatchback, however there is not currently a custom T-connector harness available for this vehicle. The Curt harness that you mentioned is only designed to work with the Sedan model Focus. If you would rather not splice into any of the factory wiring on your Focus another option is with a set of magnetic lights like the Optronics # TL21RK. This kit will give you a pair of stop,...
    view full answer...
  • How Does Optronics Heavy Duty Magnetic Tow Light Kit TL21RK Ground to Tow Vehicle
    The magnetic type of tow lights, such as the Optronics # TL21RK, does not ground through the magnet's contact with the trailer's metal structure. The 4-pole wiring of such light kits includes a white ground wire that uses the tow vehicle for its ground. This means that you absolutely can mount metal plates to the wooden structure to provide a magnet-friendly mounting point for the lights.
    view full answer...
  • How to Add Magnetic Lights to Vehicle on Tow Dolly
    You can certainly just splice the harness from the magnetic lights to the appropriate light circuit wires on your tow dolly instead of adding a new plug on the RV. This setup would activate the magnetic lights just the same as running the wiring to the RV. To do this I recommend the Optronics # TL21RK that includes a separate 3 foot long 4-Way extension so that you can easily splice into the wires. I have attached a short video demonstration on this kit that you can check out as well.
    view full answer...
  • Flat Towing Harness for 1994 Jeep Wrangler YJ Towed Behind 1996 Ford RV
    The wiring used to allow a vehicle like your Jeep YJ to tow a trailer is not the same as what is required to tow that vehicle behind an RV. On the linked page you can view all flat towing wiring kits for your 1994 Jeep Wrangler YJ. These include bulb-and-socket, diode and magnetic light kits like # TL21RK, by far the easiest to use of the three types. You can refer to the linked articles for more information on each type of kit.
    view full answer...
  • Is There a Plug and Play Flat-Tow Wiring Harness for a 2018 Jeep JL Wrangler Unlimited
    I do have options for you but they do not make a plug and play flat-tow wiring harness for your 2018 Jeep JL Wrangler Unlimited at this time (July 2018). However, that is not to say that there will not be one in the future as it is a relatively new vehicle therefore, I recommend using the Heavy Duty Magnetic Tow Lights part # TL21RK until a plug and play flat-tow wiring harness is available for your vehicle. The Magnetic Tow Lights are an excellent option for nearly every vehicle. They...
    view full answer...
  • Does Heavy Duty Magnetic Tow Lights # TL21RK Have Running Taillight Function
    The Heavy Duty Magnetic Tow Lights # TL21RK that you referenced do cover the taillight function as well as the stop/turn functions. I attached a review video for this for you to check out as well.
    view full answer...
  • How to Connect Magnetic Trailer Lights with 4-Way Connector to RV with 7-Way Connector for Brakes
    In order to connect the Optroncis Magnetic Tow Lights # TL21RK to the 7-way trailer connector on your RV you would need to cut off the 4-way on the lights and wire them in to the existing 7-way on your tow dolly (If there is one) or add a new 7-way connector # H20046. You'll need to wire the brake circuit wires on the dolly to the # H20046 as well so the 7-way on the dolly will be fully functioning. If you prefer it might be easier to use a 7-way with a junction box # 277-000141.
    view full answer...
  • Plug-n-Play Tail Light or Light Bar for Towing
    We have the Heavy Duty Magnetic Tow Lights # TL21RK from Optronics that already uses a 4-Way wiring harness. All you have to do is string the excess wiring over the vehicle that you are pulling and plug the 4-Way from the Magnetic Tow Lights it into the 4-Way at the rear of your tow vehicle. If you are looking for a Light Bar, I recommend going with the Sealed, 3-Light Truck, Trailer Identification LED Light Bar # MCL93RB. You will have to splice this into your current wiring, and this...
    view full answer...
  • Magnetic Flat Towing Light Kit Recommendation for 2018 Honda Fit on Tow Dolly
    You'll want a set of magnetic tow lights like the # TL21RK which will mount on the rear of the 2018 Honda Fit. Then the 4-way of this kit would plug into the 4-way of your tow vehicle. If your tow vehicle has a 7-way in use currently you'd need the part # C55384 to splice in an additional 4-way.
    view full answer...
  • Recommended Magnetic Towing Lights for Pickup Carrying Canoe and Towing Log Splitter
    We have several styles of magnetic tow lights that you can consider for use on your pickup that carries and canoe and tows a log splitter. Most of these have a 20-foot 4-pole flat type trailer connector, such as # TL21RK (which I like for its strong heavy-duty magnets and low price). We also have a Blazer wireless kit # C6304, available at a higher price point, which requires use of 8 AA batteries but which gives a range of up to 65-feet. We also have amber warning light products,...
    view full answer...
  • Should Overdrive Be On When Towing Travel Trailer with Ford F250 Diesel
    As long as your F250 seems to be handling everything okay and is staying in overdrive (not continuously shifting in and out of overdrive), towing your 9,500 pound travel travel with it on should be perfectly fine. It is recommended to turn it off while driving up or down hills or through heavy traffic, which you have been doing, so you should have no issue with this at all. It may also be a good idea to take a look at your vehicle's owner's manual, as there may be some towing recommendations...
    view full answer...
  • How Strong are the Mounting Magnets on Optronics Towing Lights # TL21RK
    Describing the strength of the magnets used on the Optronics Magnetic Mount Tail Lights would be fairly difficult, as magnet strength is pretty subjective. The magnet on one of the lamps is strong enough to suspend a 6 pound ball mount, as you can see by watching the short video I produced for you. Hopefully, this will give you an idea of how strong the magnet is. The thickness of the metal the magnetic light is attached to will also have a bearing on how well the magnet adheres...
    view full answer...
  • Does Roadmaster Even Brake RM-9400 Require Brake Light Relay Installed in 1999 Jeep Cherokee
    I checked with Roadmaster and they told me that since your vehicle brakes will be applied with the Even Brake # RM-9400 you do still have to run a brake light relay even though you are using magnetic lights. They checked their fitguide info for your 1999 Jeep Cherokee and stated that regardless of the tow bar lighting solution the relay is needed part # RM-88400. Here's what they emailed: The brake light relay is not required if your vehicle is using a secondary brake light switch. In...
    view full answer...
  • Explaining Wiring Connections on Yellow and Brown Wire of Tow Ready Tail Light Isolating Diode
    I found the portion of the install video of the # TR118821 that you mentioned and to clarify what he's doing he's splicing in the wiring from the kit to the wiring of the vehicle in a way that allows the vehicle wiring to still function like it needs to and also allow the converter box to get the signal it needs to from the circuits. So he's cutting the vehicle wiring and putting the vehicle wiring and the converter box wiring in one end of the butt end connector and then the other...
    view full answer...
  • Can Heavy Duty Magnetic Tow Lights # TL21RK Tie Into Wiring Kit # RM-152 on a 2003 Jeep Wrangler
    If you installed the Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152 on your 2003 Jeep Wrangler then you shouldn't need the Heavy Duty Magnetic Tow Lights # TL21RK. However, if you did want to add the magnetic tow lights just for extra visibility you could tie in that 4-Way to the wiring kit that you already installed. Simply splice it in color for color using heat shrink butt connectors like part # DW05744-5. The lights will tie into the ground wire that you already ran. Please...
    view full answer...
  • Troubleshooting Turn Signals When Using Magnetic Tow Lights TL21RK
    Thank you for your purchase of the Optronics Heavy Duty Magnetic Tow Lights # TL21RK. Since this kit uses a flat 4-pole type trailer connector I presume you're using some type of 7-way to 4-pole adapter, such as Pollak # PK12716, to connect the magnetic lights to your motorhome. There are a couple of potential causes for the problem you're having with both turn lights activating at the same time. I suggest you carefully inspect all connectors for any signs of dirt, trapped moisture or...
    view full answer...
  • Will Wireless Flat Towing Lights Work with Portable Supplemental Braking System
    Yes, the magnetic tow lights part # TL21RK will work just fine with a portable supplemental braking system on your 1996 Jeep Grand Cherokee. The two systems will work just fine independently of each other.
    view full answer...
  • Does DLIS Fuse Still Need to be Removed on 2012 Chevy Sonic if Magnetic Lights are Used for Towing
    When I looked up the online version of the owner's manual for your 2012 Chevy Sonic it says that the DLIS fuse must be removed to keep the battery from dying since the key must be placed in the ACC position. This fuse removes power to the BCM causing the ignition relay to open. Even if you are using magnetic towing lights, like the Optronics # TL21RK, your battery would still drain due to other accessories that are already on your Sonic. If you are wanting to avoid physically removing...
    view full answer...
  • Wire Gauge and Strength of Magnets Used on Optronics Magnetic # TL21RK Towing Lights
    The Optronics # TL21RK Magnetic Mount Taillight Kit uses 18 gauge wires. It would be difficult to quantify the exact strength of the magnets, but I've stuck one of them to a 6 pound trailer drawbar, and found the magnet had plenty of strength to hold the drawbar without coming loose. In other words, the magnet is plenty strong enough to prevent the lamp from being knocked off by wind or turbulence from passing traffic. Keep in mind that the thickness of the metal the magnet is placed...
    view full answer...

Do you have a question about this Tow Bar Wiring?

  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality tow bar wiring for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    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. 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.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • 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.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Mike L
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Written by:
Tyler C
Updated by:
Tricia G
Updated by:
Adele M
Updated by:
Brian T
Video by:
Joshua S
Video Edited:
Jacob T
Video Edited:
Chris R
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.

Product Experts Available Now!
Call 800-298-8924