1. Tow Bar Wiring
  2. Custer
  3. Removable Tail Light Kit
  4. Bypasses Vehicle Wiring
  5. Universal
  6. Magnetic Mount
Custer Wireless LED Tow Bar Light - Weatherproof - Magnetic Base - 23" Long - 4-Pin Round

Custer Wireless LED Tow Bar Light - Weatherproof - Magnetic Base - 23" Long - 4-Pin Round

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Tow Bar Wiring

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LIW-LDTL - Wireless Custer Tow Bar Wiring
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Weatherproof LED tow bar light provides stop, tail, side marker, and turn functions for your towed trailer or vehicle. Wireless design eliminates cords for hands-free control. Magnetic base provides secure grip. Rechargeable battery. Lowest Prices for the best tow bar wiring from Custer. Custer Wireless LED Tow Bar Light - Weatherproof - Magnetic Base - 23" Long - 4-Pin Round part number LIW-LDTL can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (7)
  • Q & A (29)
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Custer Tow Bar Wiring - LIW-LDTL

  • Removable Tail Light Kit
  • Bypasses Vehicle Wiring
  • Universal
  • Magnetic Mount
  • Custer
  • Wireless

Weatherproof LED tow bar light provides stop, tail, side marker, and turn functions for your towed trailer or vehicle. Wireless design eliminates cords for hands-free control. Magnetic base provides secure grip. Rechargeable battery.


  • Weatherproof LED tow light provides stop, tail, side marker, and turn functions for your towed trailer or vehicle
    • Tail light - bar shines red
    • Brake light - red light brightens
    • Turn signal light - red light flashes on either side depending on which turn signal is activated
    • Red side-marker lights stay on to keep your towed vehicle street legal
  • Wireless design eliminates the hassle of running cords every time you tow
    • 4R Radio-powered transmitter plugs directly into 4-pin socket on your vehicle
    • On/off switch allows you to use the lights as needed, conserving battery power
  • Rechargeable battery charges with the included 12V DC accessory socket
    • Green LED indicates when unit is charging
    • Easy access battery compartment
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide brighter light with less power output
    • No bulbs to replace - no brittle filaments
  • Heavy-duty magnets on the base provide a secure grip
    • Offers up to 90 lbs of pull
    • Rubber coating around the magnets prevent scratches on your vehicle surface
  • Weatherproof exterior allows you to keep the light bar on your towed vehicle in all weather conditions
    • Durable polyethylene housing won't warp or crack
    • Lights are hardwired - connections are shrink-tubed
  • 4-Pin round connector included
  • Low profile design allows for easy handling and storage
  • DOT compliant
  • Made in the USA


  • Application: light and medium tows
  • Light bar dimensions: 23" long x 5" tall x 2-1/2" thick
  • 4-Pin connector dimensions: 5-1/4" long x 2-5/16" wide x 2" thick
  • Magnet base diameter: 3-1/2"
  • Diodes:17
    • Front bar: 11
    • Turn signal: 2 per signal
    • Side markers: 1 per signal
  • Cord length: 6'
  • Battery life: approximately 4-8 hours
  • 3-Year limited warranty

LIW-LDTL Custer Wireless LED Tow Bar Light w/ Turn Signal for Tow Trucks - Side Markers - Magnetic Base - 23" Long - 4-Pin Round Plug

Replaces part number LIWSR1

This Product Fits The Following Vehicles

Customer Reviews

Custer Wireless LED Tow Bar Light - Weatherproof - Magnetic Base - 23" Long - 4-Pin Round - LIW-LDTL

Average Customer Rating:  4.6 out of 5 stars   (7 Customer Reviews)

Weatherproof LED tow bar light provides stop, tail, side marker, and turn functions for your towed trailer or vehicle. Wireless design eliminates cords for hands-free control. Magnetic base provides secure grip. Rechargeable battery.

2015 Buick Enclave

I just received the Custer Smart Light from etrailer yesterday. Charged the light bar for a few hours as recommended then mounted it to the roof of my SUV and plugged the transmitter into my motorhome. The light bar works as advertised. Time will tell if this item holds up to about 8K miles of towing per year. If all is well after a years use I give it 5 stars.

Custer light Bar works great 9K miles of use without a single issue... 5 Stars!!
Richard H - 07/07/2018

2017 Ford Explorer

I use the light bar on my SUV towed behind my RV. The towed vehicle is a $50k SUV so I was not excited about tapping into the wiring, or drilling holes in the taillight for an extra incandescent light in a well designed LED setup. I just have two comments. One make sure you zip tie the transmitter. If you are driving on 95 in the Northeast it will vibrate out. I am glad I thought of it or I would have been very unhappy. Second, you can not tell if the light runs out of juice. If it was not for irate truckers honking I would not have known. Be ready with a backup power supply in case your driving day includes a 3 hour delay due to accidents. Otherwise it has clung well, worked great and is very bright. I would recommend this product for any tower’s


Arrived as scheduled and works great. This system saved major problems with vehicle wiring. Just plug in to tow vehicle, mount light bar on towed vehicle and go. Fast and simple work around to problem..

2018 Ford Edge

This is the best way I've had lights on the dinghy. I've been towing for 30 years. It's great not to have to get into the vehicle wiring.

2005 GMC Envoy

Great Service. Good Products. Installation instructions were clear and well written. Full installation completed with no problems. Will be taking flat tow vehicle with RV for maiden voyage this weekend. Thanks for good service and support.


I haven’t used it yet

2018 Chevrolet Colorado

Always perfect product at best price and instataneous service!!


Ask the Experts about this Custer Tow Bar Wiring

  • How Many Hours Will the Custer Wireless LED Light Battery Last Between Charges
    The Custer Wireless LED Tow Bar Light # LIW-LDTL has a 4-8 hours battery life before it would need to be charged, so it's not really ideal for the use that you're looking for. With that said, if you could figure out a way to keep it plugged in to a 12v power source inside the tow vehicle you could likely make this work as you're hoping. However, if you wanted a set of removable lights that work with a wireless signal, you may want to have a look at the Pilot Magnetic Tow Lights - Red...
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  • How Would 2001 TJ Wrangler Custer Wireless LED Tow Bar Light # LIW-LDTL Fit Wrangler
    The Custer Wireless LED Tow Bar Light # LIW-LDTL that you referenced is designed to attach with the powerful magnets on the bottom of it either to the top of a vehicle or to the rear bumper. Looking at the rear of your 2001 Jeep TJ the best shot it's going to have at fitting properly is if you have a metal rear bumper you can set it on top of since the top is not metal. If you have other ideas let me know and maybe we can work out a better solution. I attached a review video for...
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  • How to Charge Custer Wireless LED Tow Bar Light # LIW-LDTL
    The Custer Wireless LED Tow Bar Light # LIW-LDTL does have a rechargeable battery and the only way to charge it is by plugging in the included 12V DC/cigarette style adapter charger. It will still function like normal when it's actually plugged in and charging, but you will want to make sure that the 12V outlet in your towed vehicle still gets power when the vehicle is turned off for flat towing. I have attached a short video review on this tow bar light that you can also check out.
    view full answer...
  • Availability of Wireless LED Tow Light that Uses a Rechargeable Battery
    The exact thing that you just described is the Custer Wireless LED Tow Light # LIW-LDTL. It uses magnets to install on the towed vehicle and has a rechargeable battery so you to not have to purchase AA or AAA batteries to power it. For the light functions to work you will simply need to plug in the wireless transmitter to the 7-Way on the back or your RV or tow vehicle and then flip the switch to the "on" position on the light bar. Since this is made to be installed on the top of a...
    view full answer...
  • Recommended Wireless Magnetic LED Tow Light
    We carry the CusterWireless tow light system # LIW-LDTL that do not splice into the vehicle wiring as you said you wanted. We do not carry the Pilot lights you mentioned. The great feature about the # LIW-LDTL is that it is a magnetic light and you only have to be concerned with one area to attach it to. This system has a charging cord for the light, where the Pilot system uses 6 AA batteries that can be a hassle when the batteries go dead.
    view full answer...
  • Can Anything Else be Plugged in when Using Custer Wireless LEDTow Light # LIW-LDTL
    The 7-Way connector would be occupied by the transmitter for Custer Wireless LED Tow Light # LIW-LDTL. Any supplemental braking system you use that requires 12 volt power should get that power from the vehicle it is installed in and not from the RV. The reason is because if the vehicle gets disconnected from the RV the braking system will still have power allowing it to apply the vehicle brakes and avoid a runaway vehicle. If you can tell me the braking system you have I can look into how...
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  • Can RV/Tow Vehicle Be Spliced Directly Into 2017 GMC Sierra Tail Lights without Using Diodes
    If you were to wire in the 2017 GMC Sierra 1500 tail lights directly to the tow vehicle there could be back feeding problems which could damage electrical components even if the battery is disconnected. There could also be shorts when the truck is not being towed and its lights are used. Using a diode system such as # TR118821 prevents that from happening. If you do not like the idea of tapping into the tail light wiring and adding diodes another option is a wireless and/or magnetic...
    view full answer...
  • Wireless LED Tow Bar Light with Magnetic Base
    The Custer Wireless LED Tow Bar Light with Magnetic Base, # LIW-LDTL is a wireless system that sets on your towed vehicle to provide the needed brake and turn signal indicator lights instead of using the wiring and lights on your towed vehicle. Made in USA and DOT compliant. Think of this as an upgraded LED version of the long used style of tow lights such as the MaxxTow Magnetic Tow Lights, # MT70097.
    view full answer...
  • Equipment Needed to Flat Tow a 2015 Jeep Grand Cherokee
    All of the equipment that you will need to properly flat tow/dinghy tow your 2015 Jeep Grand Cherokee will be base plates, a tow bar, tow bar wiring for working lights, safety cables, and most states now require a supplemental braking system be installed on any vehicle that is being towed. For your Grand Cherokee I recommend going with the Blue Ox Base Plate Kit # BX1128. I like the Blue Ox systems because you can detach the tabs so that your Jeep has a much cleaner look when not being...
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  • Wiring Options for Flat Towing 2012 Honda CR-V
    You're fortunate that the 2012 CR-V has some good options available for wiring. I prefer an option that doesn't require the vehicle wiring to be cut into. Custer offers a wireless magnetic mount tow lamp, part # LIW-LDTL. Installation couldn't be simpler. Plug the transmitter into the 7-way on the RV, and place the lights where they're wanted on the vehicle. The wireless feature means there's no wires flapping in the breeze as you're driving down the road. The tow bar lighting would...
    view full answer...
  • Installing a Wireless LED Light Bar for Towed Vehicle Lighting
    I might have a solution for you. You will need to replace the current 7-way trailer connector on the RV with # HM48470 that has both a 7-way and 4-way connector. Then you can use the wireless LED light bar # LIW-LDTL plugged into the 7-way with your dolly plugged into the 4-way. You'll also need a 12-volt socket in the cargo area of the vehicle if there isn't already one. You can use # RM-9332. You'll then need to figure out a way to mount the light in your vehicle's window, like...
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  • Can Front Mount Trailer Hitch and Base Plates be Installed on 2001 Jeep Cherokee at the Same Time
    With base plates installed on your 2001 Jeep Cherokee, # 1418-3 or # 1418-1, you will not be able to also install front mount trailer hitch # 65009. The issue is that both the base plates and the hitch install in the same place and occupy much of the same space so both cannot be installed at the same time. The same goes for Curt hitch # 31084. Neither the base plates nor front hitches are designed for or rated for being stacked or sandwiched. They are all meant to be in direct contact...
    view full answer...
  • Equipment Needed to Flat Tow 2001 Chevy Tracker Manual Transmission 2WD
    According to my research, the 2001 Chevy Tracker RWD w/ manual transmission is capable of being flat towed without modification, however it's not recommended to tow the vehicle above 55 mph. Your motorhome would need a hitch and a trailer connector at the rear. For the vehicle, you'll need a tow bar, base plates, wiring so the vehicle taillights work along with those on the motorhome and a supplemental braking system. The Blue Ox Alpha Tow Bar, part # BX7380 is an excellent choice...
    view full answer...
  • Recommended Parts to Dinghy Tow a 2017 Chevrolet Sonic LT Sedan
    I have the perfect setup to dinghy tow your 2017 Chevrolet Sonic LT. For a tow bar I recommend using the Blue Ox Base Plate Kit, part # BX1703. This kit does not require any welding and has base plate tabs that can be removed for a very clean look when you are not towing your Sonic. The next thing that you will need is a tow bar. I really like the Blue Ox Alpha, part # BX7380, for this setup because it works well with the base plate kit and it comes with safety cables. This tow bar...
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  • Recommended Flat Towing Base Plates for 2004 Ford F250 and 2005 Scion xB
    The Blue Ox Alexus tow bar has been discontinued for several years, but it would still be compatible with their currently available tow bar base plate kits. The tow bar has a 10,000 lb capacity, so it would work fine with either vehicle. To flat tow either vehicle, you will need a tow bar, base plates, safety cables, a lighting solution so the lights on the two vehicle operate along with those of the tow vehicle and a supplementary braking system. Also, please keep in mind that some...
    view full answer...
  • Recommended Tow Bar Setup for 2013 Mini Cooper
    I have exactly what you are needing for your 2013 Mini Cooper towing setup. Starting off with the tow bar; Blue Ox has their Alpha tow bar # BX7380 which is what I recommend using. It is very easy to maneuver and it comes with the safety cables for added security when driving down the road. Next you will want your base plates. Blue Ox has their Mini Cooper Base Plate Kit # BX1307 which works really well with the Alpha tow bar. This kit is very well hidden. You can remove the arms...
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  • Recommended Parts Needed to Flat Tow a 2001 Subaru Forester
    The first thing that you will need to get for your 2001 Subaru Forester is a tow bar. I recommend using the Blue Ox Alpha Tow Bar # BX7380 since it comes with the safety cable that you will need to use. The Base Plate Kit, part # BX3605, will work well with the Alpha Tow Bar and has a nice clean look. You may need to use a supplemental braking system in your Subaru for when you come to stop. I recommend going with the Roadmaster Even Brake, part # RM-9400. This is a wireless supplemental...
    view full answer...
  • Recommended Equipment for Flat Towing a 1996 Toyota 4Runner 4x4
    As long as your 1996 Toyota 4Runner is the 5 speed manual 4 cylinder, then yes, you can flat tow it. You will need to check your owner's manual to make sure that you follow any specific instructions on flat towing as well. For base plates I recommend using the Blue Ox Base Plate Kit, part # BX3728. These are my favorite option for base plates because it has a very clean look once it is installed. For a tow bar I recommend going with the Blue Ox Alpha Tow Bar, part # BX7380. This...
    view full answer...
  • Roadmaster Sterling All Terrain Tow Bar and 2020 Ford Escape
    The Roadmaster Direct-Connect Base Plate Kit - Removable Arms, # RM39FR, is a confirmed fit for your 2020 Ford Escape and will work with your Roadmaster Sterling All Terrain, Non-Binding Tow Bar, # RM-576. In addition, these base plates will work with other Roadmaster tow bars that slide into a trailer hitch, such as the, Blackhawk, Blackhawk 2, Falcon, or Falcon 2. Please see the product review video I have attached. You will also need indicator lights for your vehicle when being...
    view full answer...
  • Tow Bar, Base Plates and Flat Towing Accessories for 1996 Geo Metro
    To flat tow your 1996 Geo Metro, you'll need a towbar, base plates, safety cables, a method of wiring the vehicle so the taillights of the tow vehicle operate those of the Metro and a supplemental braking system. The Blue Ox Adventurer you referenced, part # BX7322 would work fine. For a base plate that bolts to the front of the vehicle frame and provides an attachment point for the tow bar, you could use the Blue Ox # BX3507 (as long as your vehicle isn't a GTI model.) For safety cables,...
    view full answer...
  • Base Plate for 2004 Jeep Liberty Thats Compatible with Reese Tow Bar
    As long as your Liberty doesn't have a brush guard on it, the Roadmaster # RM-521423-5 base plate kit would be a good choice. If you DO have a brush guard, use # 521426-1. In order to be compatible with your Reese tow bar, you'd also need an adapter like part # RM-025. I'm not sure which Reese tow bar you have, but keep in mind that some of the Reese towbars have a limited speed rating of 45 mph. The # 40602 bracket you referenced is more suited to something that would have a completely...
    view full answer...
  • Tow Bar Cover for RoadMaster StowMaster and Parts Needed for Flat Towing a 2017 Chevrolet Spark
    If you are using the RoadMaster StowMaster # RM-501, then the Tow Bar Cover is part # RM-052-3. For brake light wiring I recommend using the Custer Wireless LED Tow Light # LIW-LDTL. This is a magnetic and wireless brake light which makes it very easy to install as opposed to a kit that you would have to hardwire into your Spark. Other equipment you would need to flat tow your 2017 Chevrolet Spark will be: Blue Ox Base Plate Kit - # BX1725 RoadMaster Tow Bar to Blue Ox Brackets...
    view full answer...
  • Tow Bar Wiring that Bypasses Vehicle Wiring on a 2015 Jeep Grand Cherokee
    The bulb and socket kit # RM-155-2 is not one of the tow bar lighting systems that is recommended for your 2015 Jeep Grand Cherokee (it doesn't fit) so I do not recommend using it. For another option that bypasses the vehicle wiring you can use a magnetic light kit such as # RM-2120 We also have wireless options # NV-5164 and # LIW-LDTL.
    view full answer...
  • Recommended Base Plates and Flat Towing Accessories for 2014 Ford C-Max
    For the 2014 Ford C-Max, you'd need the Roadmaster Base Plate Kit, part # 524432-1. You'll also need some other items to complete your towing system. You'll need: -Safety cables like part # RM-643. -A wiring solution so the taillights work along with the RV, like the wireless magnetic tow lights from Custer, part # LIW-LDTL. -A supplemental braking system like the SMI Stay-In-Play DUO, part # SM99251 I'll link you to some of our help articles that contain much more information...
    view full answer...
  • Can a 2015 VW Jetta 1.8 CL Be Flat towed
    While many vehicles will have base plates and other components available, only some trim levels are able to be safely flat towed. The OEM is final word on what conditions are needed and what trim levels can be safely towed. We always recommend that you review your vehicle specific owners manual for this information as the OEM is the authority on if a vehicle they manufactured can be safely towed and how. If you can tow your particular vehicle, you'll need base plates, safety cables,...
    view full answer...
  • Availability of Base Plate Adapter For Towing 2003 Mini Cooper Using A Demco Tow Bar
    No worries. You can use the Blue Ox # BX1303 tow bar, and then use a # BX88178 adapter. The adapter will allow your Demco Aluminator, Excali-bar or Kwik-Tow towbar to work with the Roadmaster base plates. To complete your flat towing system, you'll also need safety cables like # RM-643. You will also need a lighting solution so the lights on the towed vehicle work in tandem with those of the RV. Custer offers a simple wireless solution, part # LIW-LDTL. The fact that absolutely no cutting...
    view full answer...
  • Installing Roadmaster 6-Diode Wiring Kit for Towed Vehicles on 2014 Ford Taurus
    Because wiring colors aren't always consistent even among models produced during the same model year, we always recommend wiring by function, not by wiring color. You can use a voltmeter or a simple circuit tester like part # 40376. There should be close to 12 volts being delivered to the taillights. Activate the left turn signal, and probe the wires until you find the circuit that makes the tester blink along with the turn signal. Do the same for the right turn, the brake light and...
    view full answer...
  • Fit of Roadmater Base Plate Kit # 131-15 on 1995 Nissan Altima
    If your 1995 Nissan Altima has the factory installed driving lights in the front bumper, Roadmaster states that the # 310-3 is not a fit. It MIGHT be possible to remove the OEM driving light assemblies so the base plates will fit, but this has not been tested, so we cannot say with any certainty that it would work. However, it should be noted, that #310-3 is no longer available. You'll need to check with your owners manual or with Nissan to determine if your vehicle is capable of being...
    view full answer...
  • Flat Tow 1991 Geo Metro Manual Transmission
    If you already have the other needed items, base plate, tow bar, supplemental braking, wiring etc., for flat towing, just put your 1991 Geo Metro in neutral and make sure the steering wheel is unlocked. If you need base plates, I suggest the Roadmaster Crossbar-Style Base Plate Kit, # 117-1, excluding GTI model. And the Roadmaster StowMaster Tow Bar, # RM-501. For safety cables, I'd recommend # BX88196. Custer makes a wireless option, # LIW-LDTL that's simple to install and to use...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
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Employee Cole B
Installed by:
Cole B
Employee Conner L
Installed by:
Conner L
Employee Daron K
Edited by:
Daron K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Brian T
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