Tow Ready Magnetic Tow Lights - Red Incandescent - 4-Way Flat Connector - 20' Long Harness

Tow Ready Magnetic Tow Lights - Red Incandescent - 4-Way Flat Connector - 20' Long Harness

Item # 73864

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Tow Bar Wiring

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Tow Bar Wiring 73864 - Removable Tail Light Kit - Tow Ready
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In Use/Installed

Easily install temporary lights on your towed vehicle. Lights provide stop, turn, and tail light functions. Plug into the 4-way flat connector at the rear of your RV or tow vehicle. Large, magnetic bases keep lights stable after mounting. Lowest Prices for the best tow bar wiring from Tow Ready. Tow Ready Magnetic Tow Lights - Red Incandescent - 4-Way Flat Connector - 20' Long Harness part number 73864 can be ordered online at or call 800-298-8924 for expert service.
  • All Info
  • Reviews (10)
  • Q & A (9)
  • Videos (2)
  • Photos
  • Why etrailer?

Tow Ready Tow Bar Wiring - 73864

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

Easily install temporary lights on your towed vehicle. Lights provide stop, turn, and tail light functions. Plug into the 4-way flat connector at the rear of your RV or tow vehicle. Large, magnetic bases keep lights stable after mounting.


  • Light kit supplies your trailer or towed car with the lights required for towing
    • Red lights act as running lights, brake lights and turn signals
  • No need to wire your trailer or tap into existing wiring on your towed car
    • Magnetic bases on lights hold firmly to the trunk or roof of your car
    • Wiring harness runs beneath trailer or towed car
  • Snap-on lenses make replacing incandescent bulbs easy
  • 4-Way flat connector is designed to hook up to your RV's 4-way trailer connector
    • Harness with vehicle-side connector can be hardwired into your tow vehicle or RV if no 4-way is present
  • SAE, CMVSS, FMVSS and DOT compliant


  • Maximum amperage: 7.5 amps per circuit
  • Wiring harness length: 20'
  • Wire length between lights: 5'
  • Length of harness with vehicle-end 4-way for tow vehicle: 3'
  • Magnetic base diameter: 2-3/4"
  • Bulb type: 1157 incandescent
  • Wiring configuration:
    • White: ground wire
    • Yellow: left turn/brake light
    • Green: right turn/brake light
    • Brown: tail lights
  • 1-Year limited warranty

73864 Tow Ready Magnetic Light Kit for Towed Vehicles - Red Lights - 4-Wire Flat Connectors - 20' Long Wire

Replaces 18148

73864 Installation InstructionsInstallation Details 73864 Installation instructions

This Product Fits The Following Vehicles

2010 - 2020 Ram 1500

2019 - 2019 Ram 1500 Classic

2011 - 2011 Mazda 2

2012 - 2014 Chrysler 200

1995 - 1997 Nissan 200SX

1989 - 1989 Nissan 240SX

2010 - 2019 Ram 2500

1980 - 1983 Datsun 280ZX

2004 - 2013 Mazda 3

1993 - 2003 BMW 3 Series

1991 - 1996 Mitsubishi 3000GT

2007 - 2007 Chrysler 300C

1999 - 2004 Chrysler 300M

1984 - 1984 Datsun 300ZX

1990 - 1994 Mazda 323

2010 - 2019 Ram 3500

2013 - 2018 Nissan 370z

1984 - 2019 Toyota 4Runner

2006 - 2012 Mazda 5

2012 - 2019 Fiat 500

2014 - 2016 Fiat 500L

2006 - 2008 Mazda 6

1983 - 1989 Dodge 600

1986 - 1997 Mazda 626

1993 - 1994 Oldsmobile 88

2007 - 2019 GMC Acadia

2017 - 2017 GMC Acadia Limited

1995 - 2020 Hyundai Accent

1990 - 1995 Plymouth Acclaim

1981 - 2020 Honda Accord

See All Vehicle Fits

California residents: click here

Video of Tow Ready Magnetic Tow Lights - Red Incandescent - 4-Way Flat Connector - 20' Long Harness

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Tow Ready Tow Bar Wiring - Bypasses Vehicle Wiring - 73864 Review

Today, we're going to be taking a look at some magnetic tow lights. Now, this light kit is going allow you to bypass your vehicle's wiring to provide temporary lights for your towed vehicle. This kit can also be used as trailer lights, so it's going to be ideal for RVs, cars, boats, tow trucks, trailers, and agricultural as well as industrial equipment. With this you're going to get two red lights that act as brake, tail and turn signal lights. The lens simply snap into place and then each light's going to contain one incandescent bulb. The bulbs are replaceable.

It uses bulb number 1157. Now these are going to feature a rugged durable construction. Each light has a magnetic base that lets you easily mount the lights at the rear or on top of the vehicle that's being towed. The base each one measures the same. It's going to have a diameter of about two and 3/4 of an inch. The unit's going to feature a four pole flat connector on the harness, that's designed to hook up to your RVs four way flat trailer connector or to the vehicle that's doing the towing.

It does come with a separate harness, that also has a four way flat that can be wired into the tow vehicle or RV, if no trailer connector is present. This harness is going to measure about three feet long and again it would simply wire into the towing vehicle. You're going to have your white wire, which is your ground. Brown wire, which is running lights. Yellow, which is left side stop and turn signal and green, which is right side stop and turn signal. When it comes to specifications and requirements, it meets SAE, CMVSS, FMVSS, and Department of Transportation standards.

The harness right here, this one's going to measure 20 feet long. The distance that you're going to have between the lights measures four feet, 10 inches. Again this harness right here, if needed, it's going to measure three feet long. We're going to take some measurements of each light. They're going to measure the same, so we'll just focus on one.

Then we'll actually hook this up to our power source, that way you can see what it looks like with power running to it. Now the overall height, that's going to be just over seven inches, about seven and 1/8 of an inch tall. Then the width of each one, that's going to be about four inches wide and then the overall depth is going to be that same measurement as the diameter of the base, which is about two and 3/4 of an inch. We're going to go ahead and hook it up to power. Again white wire's going to be your ground wire. Brown wire is for the running lights. Then yellow and green are going to be for driver and passenger side, stop and turn signal. Now I'll run through the functions with the overhead lights on and then I'll actually turn them off, so you can get a better look at it. This is going to be the running light function. If we apply the brakes, you can see how that signal output increases. Then we'll do stop and turn for that side there. We'll do it for the other side as well. Now we can do that with the lights turned off. Again you're going to see the running lights, brakes, turn signal, and the other turn signal. Really nice bright, consistent light output with this unit. That's going to do it for today's look at the magnetic tow lights.

Customer Reviews

Tow Ready Magnetic Tow Lights - Red Incandescent - 4-Way Flat Connector - 20' Long Harness - 73864

Average Customer Rating:  5.0 out of 5 stars   (10 Customer Reviews)

Easily install temporary lights on your towed vehicle. Lights provide stop, turn, and tail light functions. Plug into the 4-way flat connector at the rear of your RV or tow vehicle. Large, magnetic bases keep lights stable after mounting.

- 73864

Site is easy to use. Price are good. Item was shipped fast. Untested as of now, but other things I've ordered from etrailer have been fine. 333708


The wiring is still fine. Weve used it a whopping two times. Its not worth another review, but I thought Id at least let you know.

Big C - 01/19/2018


- 73864

Needed these lights for my towed vehicle and they were delivered promptly and seem to be just what I need to avoid rewiring my new truck. etrailer is my first choice for this type of equipment and they continue to deliver (no pun intended) 726123

- 73864

Good probs after a year. 620453

- 73864

Great experience. Product is perfect 610711

- 73864

Works great. Thank you. 591698

- 73864

excellent. 562828

- 73864
2009 Honda Fit

Very easy to use, just plug and play. No wire splicing or complicated connections. 546471

- 73864

Lights arrived on time and are going to be just what i need. Easy installation and will serve many aplications. The storage case is a nice idea as well. 324644

- 73864

They have never failed me! 321536

- 73864

great place to buy will buy again 277618


Ask the Experts about this Tow Ready Tow Bar Wiring

Do you have a question about this Tow Bar Wiring?

  • Magnet Strength Of Tow Ready Tow Bar Wiring 18148 Lights
  • The Tow Ready Magnetic Tow Lights - 4-Way Flat Connectors # 73864 have a strong magnet. They don't have any weight rating or capacity rating. They have been tested at highway speeds with various weather conditions to stay firmly in place on your towed vehicle's exterior. You can remove them by hand and they take a little strength to remove, but you do have to be purposeful for them to come loose. I've attached an article on these style magnetic lights to assist.
    view full answer...

  • Can Tow Ready Magnetic Tow Lights # 73864 be Mounted to Side of 2016 Jeep Wrangler
  • If you have a strong magnetic surface on the side of your 2016 Jeep Wrangler you could very well mount the Tow Ready Magnetic Tow Lights # 73864 there. The magnets are very strong for the lights, but we haven't tested them on the side of a vehicle so there isn't a way I can guarantee that it will hold well. You may want to check out the E-Z Mount Tow Light Kit # EZT20B instead which has tabs to keep them mounted at the rear door of your Wrangler. Since these do not require a magnetic...
    view full answer...

  • Will SMI Delta Force Portable Braking System Work on 2019 Honda Fit
  • Yes, the SMI Delta Force Portable Supplemental Braking System # SM99242 will work perfectly on your 2019 Honda Fit. Whether or not a system like this will actually activate the brake lights when pressing down on the pedal depends on the specific vehicle it's being used on (how the tail lights function when in the correct mode for towing). Based on my research though the brake lights for your 2019 Honda Fit should indeed still illuminate when the Delta Force applies the brakes. This...
    view full answer...

  • Parts Needed to Tow a 2013 Kia Optima on a Tow Dolly
  • I checked the online manual for your 2013 Kia Optima and didn't see anything about recreational dolly towing, only emergency dolly towing. While the manual didn't give any distance restrictions for dolly towing it is always best to confirm whether it is safe or not with a Kia dealer. If it is okay then you simply need a tow dolly and then some lights. Tow dollies tend to have lights on them but it helps to have some extra lights to make sure people around you can tell what you are doing. For...
    view full answer...

  • Which Style of Tow Bar Lighting is Easiest to Install and Use
  • When flat towing a vehicle magnetic tow lights like the Tow Ready kit part # 73864 really are the easiest solution to deal with. It's just a matter of plugging them in and setting them on a metal surface that's visible and you are good to go. I attached an install video for these for you to check out as well.
    view full answer...

  • Most Cost-Effective Way to Flat or Dinghy Tow a 2020 Ram 1500
  • I'm glad you know that there is going to be a certain cost associated with flat towing (also called dinghy towing) your 2020 Ram 1500, but there are certain ways you can save money while still being both safe and comfortable. There are a number of parts you'll need, starting with base plates, the Roadmaster Direct-Connect Base Plate Kit # RM-522203-5 (fits all but Rebel models of '20 Ram 1500), which also needs a compatible tow bar, with the Roadmaster Falcon 2 Tow Bar # RM-520 being...
    view full answer...

  • Correct Base Plates and Other Parts Needed To Flat Tow a 2013 Mini Roadster
  • The correct Blue Ox Base Plate Kit for a 2013 Mini Roadster is part # BX1307. I understand you are hoping to save some cash and make the Blue Ox Base Plate Kit part # BX1303 work but that is really just not feasible as these base plate kits are custom fit to exact vehicles. The mounting flanges are in entirely different spots so I can only imagine the amount of modifications needed would far exceed the value of cutting cost. That said, I don't have any tips for this process as this is just...
    view full answer...

  • Will the Tow Ready Magnetic Tow Lights Part # 73864 Scratch My Paint
  • There is a protective film on the bottom of the Tow Ready Magnetic Tow Lights part # 73864 that will help prevent the base from scratching your vehicle's painted surface. I have attached a photo for you as well that shows the protective film. Please make sure the surface that you attach the lights to is clean as this will also help to avoid scratches.
    view full answer...

  • Parts Needed to Flat Tow 2016 Cadillac Escalade
  • Along with the Blue Ox Base Plate Kit # BX1716 and the Blue Ox Alpha Tow Bar # BX7365 there are a couple more parts you need in order to safely flat tow your 2016 Cadillac Escalade. Since the Alpha comes with safety chains we can check that off the list but you will also need a wiring kit in order to activate your Escalade's brake lights and turn signals. For that the best option is the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267, or you can simply add magnetic...
    view full answer...

Do you have a question about this Tow Bar Wiring?

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Info for this part was:

Edited by:
Lindsey S
Video by:
Dustin K
Installed by:
Cole B
Installed by:
David F
Video Edited:
Chris R
Written by:
Alexander C
Updated by:
Isabelle B

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