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Aero Pro Trailer Light Kit for Trailers Over 80" Wide - Waterproof - Passenger and Driver Side

Aero Pro Trailer Light Kit for Trailers Over 80" Wide - Waterproof - Passenger and Driver Side

Item # TL36RK
Our Price: $45.94
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Trailer Lights TL36RK - 8L x 3W Inch - Optronics
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Waterproof trailer light kit includes 2 combination tail lights and 2 clearance and side marker lights to serve 8 functions on trailers wider than 80". Universal mount with stainless steel hardware. 25' Wiring harness with 4-pole connection. Great Prices for the best trailer lights from Optronics. Aero Pro Trailer Light Kit for Trailers Over 80" Wide - Waterproof - Passenger and Driver Side part number TL36RK can be ordered online at or call 1-833-496-1390 for expert service.
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Optronics Trailer Lights - TL36RK

  • Tail Lights
  • Rectangle
  • Kit
  • Incandescent Light
  • Red and Amber
  • 8L x 3W Inch
  • Surface Mount
  • Stop/Turn/Tail
  • Side Marker
  • Rear Clearance
  • Side Reflector
  • Rear Reflector
  • License Plate
  • Submersible Lights
  • Optronics

Waterproof trailer light kit includes 2 combination tail lights and 2 clearance and side marker lights to serve 8 functions on trailers wider than 80". Universal mount with stainless steel hardware. 25' Wiring harness with 4-pole connection.


  • Incandescent trailer light kit serves 8 functions when properly mounted on trailers over 80" wide
    • Stop, turn, tail, side marker, rear clearance, side reflector, rear reflector, and license plate light
    • Great for boat trailer applications
  • Sealed, waterproof housing and lens units
  • 2 Aero Pro tail lights (ST36RB and ST37RB)
    • Shock-proof sockets protect bulbs against damage
    • Driver's-side light includes license illuminator
  • 2 Side marker and clearance lights (MC91AB)
    • Single wire design grounds through mounting hardware
    • Gaskets for weathertight seal
  • Surface mount kit for easy installation
    • Included license-plate bracket and stainless-steel mounting hardware for lights
  • 25' Long, wiring harness with 4-pole connector
  • PC rated clearance lights produce a 180-degree beam pattern
  • DOT approved


  • Application: trailers over 80" wide
  • Combination tail lights:
    • Dimensions: 7-3/8" long x 3-1/4" tall x 2-7/8" thick
    • Power draw at 12V:
      • Stop/turn: 2.3 amps
      • Tail: 0.9 amps
  • Side marker and clearance lights:
    • Dimensions: 2-7/8" long x 1-1/2" tall x 1" thick
    • Power draw at 12V: 0.2 amps
  • 3-Year limited warranty

Optronics TL36RK Trailer LIght Kit Light Dimensions

Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The circuit board is sealed, which means that water will not damage the diodes or circuit board.

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and side marker light.

Combination Lights for Trailers Over 80" Wide

Flatbed trailer over 80" wide with combination tail lights

If a trailer is 80" or wider at its widest point, then it requires rear clearance lights in addition to basic trailer lights. These clearance lights indicate the width of the trailer when it is viewed from the back.

To meet these requirements on a flatbed utility trailer where the bed extends past the wheels, you can install combination trailer lights that include the rear clearance function. For proper mounting, the lights must be installed at the widest points on the rear of the trailer - one on each corner.

TL36RK Optronics Aero Pro Trailer Light Kit for Boat Trailers Over 80" - Waterproof - Incandescent - Passenger and Driver Side - 25' Wiring Harness

Alternate part number: TL-36RK

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Aero Pro Trailer Light Kit for Trailers Over 80" Wide - Waterproof - Passenger and Driver Side - TL36RK

Average Customer Rating:  4.6 out of 5 stars   (71 Customer Reviews)

Waterproof trailer light kit includes 2 combination tail lights and 2 clearance and side marker lights to serve 8 functions on trailers wider than 80". Universal mount with stainless steel hardware. 25' Wiring harness with 4-pole connection.


Just got the lights but haven't had time to install them. They look like what I need to redo the trailer.

Lights are working great. Nice not having to unplug them. Just wish the kit would come with everything. I had to buy a couple extra lights to redo the whole trailer.
Michael - 07/10/2022

I replaced all the lights on my trailer. This included the 3 light bar in the middle of the trailer and two more side marker lights. Those were the extras I also had to get. That is probably more than required for the trailer but that is all the lights on my trailer.
-- comment by: Michael - 07/15/2022


Haven't put on trailer yet but product looks to be well made and sturdy.


Rear light are ok but theside marker lights are a bad design.I could not get them to work right so now I ordered the submersible wesbar minis to put on instead.I would not buy this kit again with the side marker lights

How were the marker lights mounted? They get their ground connection by being directly mounted to the trailer frame or to a piece of metal thats directly mounted to the trailer frame. If mounted elsewhere, youll need to run a jumper from the attachment screw to the trailer frame.
-- Etrailer Expert Mike L - 04/23/2019


Review after 1 year of approx. 10 uses. I purchased these lights to upgrade a boat trailer. I started having some intermittent problems like shorts but fiddle with the flat plug and things would behave. Then I had one brake/turn light that consistently would not operate and upon investigation found the sealed part of light was half full of lake water. The metal holder was certainly corroded by this point. I have cleaned up and replaced bulb and tried to seal unit better than it was from the factory. Time will tell if it holds up. I have cut out the flat plug supplied with kit and replaced with a 7 way heavy duty plug.


Good product, good service.


Liked the price. Using it on a cargo carrier so I didn't want to spend the extra money on LED's.

Watch the installation video on Etrailer. Guy on video does a more robust installation than what is included in the light package hardware kit.

Not impressed with the license plate holder. Making my own if necessary

Although I will still install it on my cargo carrier, it was really not required. The tail lights and license plate on my 2016 Honda Pilot are high enough that the 24" tall bag on the cargo carrier will not obstruct either of them. You could probably get away with reflective tape if you are looking at this for the same purpose as me.

I do like the idea of the break lights on the end of cargo carrier more than anything. Always feel like someone is going to drive up on me at a stop.


Great quality, easy to install.


They only lasted 3 months in the salt water on our boat trailer and we use it every other weekend not sure if they where just a bad set went with a different brand this time and been working so far


Had I not read it on Etrailer, I would never had known there were special rules for trailers over 80" wide. The materials in TL36Rk appear to be of high quality and include everything I need to finish the trailer I am building out of an old military enclosed trailer. Sorry, no photo yet. The system will not be installed for a while.


The taillights arrived before they were supposed to. Great communication from etrailer . The tail lights worked out great for our home made gypsy vardo a.k.a. trailer. the trailer is now street legal. I am very pleased with how it worked out, Thanks , Robert


Product came as advertised and all the needed hardware was included. Kaylyn in customer service was very helpful in determining the correct products to purchase as well as following up with installation instructions. This was particularly valuable because I did not have access to my trailer at the time and saved me an extra 200 mile round trip.


I couldn't be happier with The web site is simple to navigate, the follow-up after placing my order was above and beyond what I expected, and I received an upgrade to express delivery at no extra charge without even asking for it and the price of the materials I ordered was as low as I could find anywhere online. I would absolutely recommend ordering from


For the money these are the best deal on the web work great a litle hard to install but that was more due to the trailer than the lights would buy again


This replacement light kit was a great upgrade to get our boat trailer safe and DOT compliant again. Install was very easy with everything needed right in the kit. I would highly recommend this kit


etrailer was awesome to deal with and parts arrived intact/on time. etrailer provides excellent customer service and great value on their products. Should I find myself in need of additional parts etrailer will be my first and only stop! Keep up the good work!!!


Del was fast and on time. The lights work and installation was easy, but I haven't actually used the trailer long enough to give an honest review of the lights themselves.


Worked fine - slightly different size than the old Optronics light i replaced but then again they were 24 years old.


Easy installation, the instructions were very detailed and easy to follow, and the lights fired up first time. Can't ask for much more than that.


Nice lights, great price , fast shipping. I really like the installation videos with the lights and coupler rebuild kit.


This kit worked so well on my boat trailer I biught a second set for my car carrier.


I was very pleased with the service provided. I needed the light set as soon as I could get them because I am selling my boat and the buyer wanted to pick it up 1 Nov 2017. The light set arrived in plenty of time for me to install them and sell the boat on time. Thank you for the great service.


We received the product within the time promised DESPITE Storm Irene. It is exactly as described online and EXACTLY what we wanted at a reasonable price. I would not hesitate to by from etrailer again and recommend the site to others.


Haven't installed yet. Product looks good May be ordering another for my son in laws trailer. Shipping was great got a notice it was shipped the same day of order. Overall am very happy with etrailer


Pretty happy with light kit. Did the job i needed and the cost was ok. Seems to be very good follow up customer service as well. Thanks etrailer.


easy to install, great instruction I would recommend this product to anyone that needs quality light kkit

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

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  • Dimensions and Bolt Spacing of LED Trailer Taillight Kit TL36RK
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  • What Does Over or Under 80 Mean for Trailer Lights
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  • Lighting Requirements for a Boat Trailer Over 80 Inches Wide
    For trailers that are over 80 inches wide, less than 30 feet long, and have a gross weight rating of 10,000 pounds or less I have the following lighting requirements: 2 brake lights 2 tail lights 2 turn signals 2 rear reflectors 1 license plate light 2 rear side marker lights 2 rear side reflectors 2 front side marker lights 2 front side marker reflectors 2 rear clearance lights 2 front clearance lights Rear identification lights (ID lights are often grouped into a single light bar like...
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  • Are the Optronics Waterproof Aero Pro Trailer Tail Lights # TL36RK Submersible
    The Optronics Waterproof Aero Pro Trailer Lights # TL36RK referenced in your question are indeed submersible. These tail lights feature a waterproof, corrosion resistant construction that is perfect for use on boat trailers. This kit includes 2 red Aero Pro tail lights, 2 amber surface mount side marker/clearance lights, license plate bracket, 25 foot wiring harness with 4-pole connector, and the needed mounting hardware. I have attached a couple short video demonstrations on this light...
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  • How Does the Waterproof, Over 80 Inch Aero Pro Trailer Light Kit, # TL36RK Mount to the Trailer
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  • What are the Size of the Lights in Waterproof, Over 80 inch Aero Pro Trailer Light Kit, # TL36RK
    The tail lights that are in the Waterproof, Over 80 inch Aero Pro Trailer Light Kit, # TL36RK, are 7-7/8 inches wide, 3-1/4 inches tall, and 2-7/8 inches deep. I have included a picture that has these and other dimensions for you to view.
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