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Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness

Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness

Item # TL16RK
Our Price: $38.32
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Trailer Lights TL16RK - Red and Amber - Optronics
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This incandescent trailer light kit comes with everything needed to properly light your trailer. 2 Tail lights, 2 amber clearance lights, 2 amber reflectors, license plate bracket, 25' wiring harness with 4-pole connector, and mounting hardware. Lowest Prices for the best trailer lights from Optronics. Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness part number TL16RK can be ordered online at or call 1-800-496-5010 for expert service.
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Optronics Trailer Lights - TL16RK

  • 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

This incandescent trailer light kit comes with everything needed to properly light your trailer. 2 Tail lights, 2 amber clearance lights, 2 amber reflectors, license plate bracket, 25' wiring harness with 4-pole connector, and mounting hardware.


  • Incandescent trailer light kit comes with everything needed to properly light a trailer over 80" wide
    • Includes 2 tail lights, 2 amber clearance lights, 2 reflectors, license plate bracket, 25' wiring harness with 4-pole connector, and mounting hardware
  • Sonically sealed, waterproof tail lights and clearance lights are submersible
  • 2 Low-profile combination tail lights (ST16RB and ST17RB)
    • Provide stop, turn, tail, rear clearance, rear reflex, side marker, and side reflex functions
    • Driver's-side light includes license illuminator
  • 2 Amber clearance lights (MC91AB)
    • Self-grounding chrome bases
    • Gaskets for weathertight seal
  • 2 Amber reflectors (RE11AB) meet FMVSS "A" for reflex when properly applied
  • Durable polycarbonate housing on all lights
  • Compatible with 12V DC systems
  • Simple installation with included mounting bracket (LP5SB) and stainless steel mounting hardware
    • Tail lights stud mount to trailer
    • Clearance lights surface mount to trailer
    • Reflectors screw-mount to trailer or attach with adhesive backing
  • 25' Wiring harness with 4-pole connector
  • DOT approved
  • PC rated


  • Application: trailers over 80" wide
  • Tail light dimensions: 8-1/16" long x 2-7/8" tall x 2-13/16" deep
    • Distance between mounting holes (center on center): 2"
  • Clearance light dimensions: 2-7/8" long x 1-1/2" wide x 1" thick
  • Reflector dimensions: 4-7/16" long x 1-15/16" wide
    • Distance between mounting holes (center on center): 3-15/16"
  • Power draw at 12V:
    • Tail lights:
      • Stop/turn: 2.3 amps
      • Tail: 0.9 amps
    • Clearance lights: 0.2 amps
  • Limited 3-year warranty

Note: Over 80" Federal Regulations require additional clearance lights (like MC94RB, sold separately)

Optronics TL16RK Waterproof Combination Tail Light Kit Dimensions

Sonically 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 housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.

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.

Surface-Mount Light

Surface Mount Trailer Light Installation Diagram

Surface-mount trailer lights install using a flange or bracket with mounting holes. These lights lay flat against the trailer surface and only require a small, often pre-existing hole, for wiring. Mounting hardware is used to secure the light to the trailer.

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.

TL16RK Optronics Marine Trailer Light Kit for Trailers over 80" Wide - Waterproof - Incandescent - 25' Wiring Harness

Alternate part number: TL-16RK

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness - TL16RK

Average Customer Rating:  4.7 out of 5 stars   (83 Customer Reviews)

This incandescent trailer light kit comes with everything needed to properly light your trailer. 2 Tail lights, 2 amber clearance lights, 2 amber reflectors, license plate bracket, 25' wiring harness with 4-pole connector, and mounting hardware.


Easy to wire, easy to install, and so far no issues. Only thing I wish this came with was some wire connectors with shrink tubing. Other than that, works as needed


I was pleased to get the order so quickly, but the parts bag was split open and half of the parts were missing. Because the outer box had a hole in it. I would appreciate another parts bag, because I don't know what parts are missing.


Working well. We did not use the license plate hanger because it didn't have a light on it. Ended up ordering another one with a light.


It was so easy ordering my submersible trailer lights for my jet ski’s,thank you for the great price and fast service


Really good value. Easy to hook up, lots of wiring. Very happy!


Straight forward install. Product meet my expectations.


Great product


parts were as described and fast delive ry


One stop shop for a light overhaul, had to buy 2 smaller side lights to have the full set of lights needed to re-run all the lights and wires for my boat trailer, but this kit gave me 90% of what I needed.

I did have water get into one of the boxes, but a little epoxy around the wires where they enter the box, and problem solved. Best use of a day during my vacation was re-running all of the lights. No more lighting issues every time I put the boat in.


Ordering this light kit was the first time I've used
What a pleasant experience. Ordering was a breeze and the follow-up customer service was first class.
Whenever I need trailer parts, it'll be for me. I will recommend this web site to anyone I know.
I like to shop around online to find the best deal. I went to a competitor's web site that read "low price match guaranty". So I called them on the phone. Their rep said, "We can"t price match". It was the exact same item. 25% lower price at eTrailer.
Fast shipping, excellent packaging.
And BTW, the lights worked out great.


I received the product in a timely manner. The problems started with installation. I was replacing an existing, non-functioning light set and the wiring appeared to be identical. I made some temporary connections and the red rear lights seemed to work with all functions. However, after hard-wiring and installing all of the lights they failed to work. The package included a bar code to access some installation videos. Unfortunately, these videos did not address the specific product I had, so they were of no use. After hours of experimenting I called for support. Support was friendly and had a technician call me back. After a couple of minutes of chatting, he informed me that this kit would not work with aluminum trailers and that I would need to install a separate, dedicated grounding connecting from all devices. Would have been nice to know that in advance, and perhaps there should be products and packages specifically for aluminum trailers.


Very easy installation! Had an issue with the running lights NOT working after installation. I emailed the team at and they helped me TROUBLESHOOT the problem. It was my vehicle. They went ABOVE and BEYOND to help me find the problem when the light kit installed perfectly the 1st time! Only took about 2.5 hours but that's because I was meticulous about all of the connections and sealing them in heat-shrink tubing for extra protection.


I recently purchased a used boat trailer that required lights, wiring and markers to be replaced. I called customer service at with a list of questions. The representative was very patient and extremely helpful in guiding me to the product she believed met my needs. The new light package was on my doorstep in 3 days. The lights were exactly what I needed, easy to install, and work perfectly. will be my first choice for any accessory needed to repair or improve my trailer.


This is a cheap kit (made in Tiawan) I wish they sold the same kit with better quality that wasn't LED .The parts that I removed from the trailer were of much higher original quality. I would not recommend this product to anyone. The only parts I used from the kit were the tail lights. and license plate bracket. I threw away the side parker lights and went out and bought good ones.


Everything I needed was in the kit with good instructions. Delivery was right on time, With sales follow up I don't know how you could ask for better service.

That's why E-Trailer is the only place I shop now.

Hi I am perfectly satisfied with everything I have gotten from e trailer. Will be back if and when the need arises.
Mike B - 06/17/2016


Was exactly as described, works perfectly with my trailer. Would give it a "Excellent" rating if it had included more thorough instructions for attaching the side marker lights and how to waterproof those. Otherwise great!


Note this is made in China and not great quality. Should work fine but may not last. You will need a 10mm socket or box for the tail lights.


very happy with purchase.


There was no information as to the gauge of the wire or if a center brake light was supported. Good hardware, but more documentation would make it better.


Easy installation. Harness, at 25', was just too short for my trailer, which is 22'.


excellent product a nice addition to my tiny house
every thing was color coded was a easy hookup

Good morning I have been well satisfied with the lights I purchased. I was building a tiny house for a friend and I needed them to move it about 350 miles to the Virginia coast they worked perfect. I was satisfied and most importantly she was also. when I need lights again I know who to contact
John - 12/07/2018


Purchased this product to rewire a 1980"s double-wide snowmobile trailer. These lights replaced the old ones perfectly, at a great price.


Light kit was exactly as describe and easy to install, however as others have noted, the instructions are pretty useless. A little common sense takes care of that though. Good product for the price.


Great customer service. Quality part. Easy to install and works perfectly.


I The product and service was great - online. I ordered this product last week and with in a week. I didn't have to leave home. I will do future business w/etrailer.

Thanks for the timely service

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • How to Wire Clearance Lights for the Optronics Trailer Light Kit for Trailers Over 80" Wide
    The 2 black wires for the side marker lights that come with the Optronics Trailer Light Kit # TL16RK are used to power the lights. The clearance lights are actually designed to ground using the mounting hardware. If you check out the attached picture you can see that there is a metal strip that runs from an eyelet to where you will use your mounting hardware. So you will simply connect the black wire to the hole that won't be touching that eyelet. This is also addressed in the attached...
    view full answer...
    Image 1 for
  • Lighting Requirements for Trailer that is over 80 inches in Width
    I attached a picture that shows what type of lighting requirements are needed for a trailer over 80 inches in width as well as a link down below that covers this as well.
    view full answer...
    Image 1 for
  • How Do the Lights Mount in Trailer Tail Light Kit # TL16RK
    Trailer light kit # TL16RK mounts on the heads of the 4 bolts that came with the kit. There are slots on the backs of the lights and the lights will slide onto the bolt heads. There are actually 3 slots per light giving you some adjustability. The amber clearance lights mount through the included mounting brackets but you have to first pop the lights off to access the mounting holes. I have included a couple of pictures showing all of this for you.
    view full answer...
    Image 1 for Image 2 for
  • Tail Light Dimensions for Optronics 80 Inch + Trailer Light Kit TL16RK
    I got the diagram from the manufacturer. The external dimensions are length: 8-1/16 inches, height: 2-7/8 inches and depth: 2-13/16 inches.
    view full answer...
  • Does Waterproof Trailer Light Kit with 25 Foot Wiring Harness # TL16RK Come With a Wishbone Harness
    I went out to the warehouse and pulled a Waterproof, Over 80 Inch Trailer Light Kit with 25 Foot Wiring Harness, # TL16RK, to double check, and it does come with a wishbone harness. The trailer sided connector has a split running light signal that is run with each turn signal/brake light wire.
    view full answer...
  • What is Amperage Draw of Optronics Trailer Light Kit # TL16RK
    The gauge wire that comes with the Optronics trailer wiring kit # TL16RK is 20 gauge. For LED lights like this 20 gauge wire is adequate for the lower amperage draw.
    view full answer...
  • How Does Trailer Wiring with 5 Wires Run to Trailer Taillights that are 3 Function
    I attached a diagram that shows a standard trailer wiring diagram. For your 5 wire setup you'd have the white wire that goes to ground on the trailer frame, the two brown wires run to either side of the trailer for the running light circuit, the green runs to the right for the stop/turn and the yellow runs to the left stop/turn circuit.
    view full answer...
    Image 1 for
  • Difference Between Trailer Taillight Kits that are for Over 80 inches in Width and Under 80 inches
    There are different taillight requirements for trailers that are over 80 inches in width vs. ones that aren't over 80 inches in width. If you check out the link I attached you will see all of these differenced highlighted. The over 80 inch kits like the part # TL16RK typically come with additional clearance lights when compared to the under 80 kits like the # TL5RK. I attached review videos for both kits for you to check out.
    view full answer...
  • Replacement Trailer Taillight and Wiring Harness for Boat Trailer 4 Winns 180
    We have taillight kits that utilize the same trailer lights you have now like with the part # TL16RK which comes with clearance lights or the part # TLL16RK which only comes with the rear taillight assemblies that are stop/turn/tail. The lights are also all LED which will draw less power and be more reliable. The wiring harness that comes with it is 25 feet in length and can easily be cut down as needed. It's definitely something anyone could handle as it's not too hard at all. I attached...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Complete LED Lighting and Wiring Kit for a Trailer Over 80 Inches Wide
    Yes, we do have the complete kit with all the wires and lighting you will need to rewire and set your trailer up with new lights. We have two options depending on the amount of side marker lights you want. The first is the LED Combination Trailer Tail Lights - Submersible - Driver and Passenger Side - 25' Wire Harness item # TLL16RK and the Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness item # TL16RK. I have linked an installation video that will...
    view full answer...
  • Will The Peterson M540 Light Kit Fit A Bracket With 2-1/4" of Head Room?
    I measured from the center of the mounting studs to the top of the lights that come with the Peterson Light Kit # M540 and it is 2-1/2". Just to make sure, I also measure the Optronics Under 80" Trailer Light Kit with 25' Wiring Harness # TL5RK the same way, and they measure exactly the same, unfortunately. With that said, I may have another option available, but the lights will be completely different. If you look at the Optronics Trailer Light Kit # TL16RK, which technically is for trailers...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Do You Connect Green to Green on One Side and Yellow to Yellow On Optronics Trailer Light Kit TL16RK
    The Optronics Trailer Light Kit for Trailers over 80" Wide - Submersible - 25' Wiring Harness # TL16RK does have the correct wiring colors so you do simply match yellow to yellow on the driver side and green to green on the passenger side.
    view full answer...
  • Rear Clearance Light Requirements for Trailers Over 80 Inches Wide
    The trailer light kit, # TL36RK, only comes with 2 marker/clearance lights in addition to the wiring and tail lights. Trailer light kit # TL16RK comes with 2 additional reflectors, not lights, that you could place as needed. I was looking through the federal requirements for lights and reflectors for various types and size trailers and found that AMBER clearance or marker lights are not a requirement for the center rear of the vehicle but RED clearance lights are required. Exactly 3...
    view full answer...
  • Does Each Light Need to be Grounded When Wiring Trailer Lights
    Yes, all of the lights in the # TL16RK Waterproof, Over 80 inch Trailer Light Kit will need to be grounded. The white wires on the tail lights are attached to the trailer frame, and the chrome bases provide the ground to the trailer frame through the mounting hardware for the side marker lights. You will also need to attach the white wire from the trailer side 4-Way connector to the trailer frame to complete the installation. We have the a video detailing installation of the LED light...
    view full answer...
  • Troubleshooting Boat Trailer Lights Not Working
    Assuming you have trailer lights like the # TLL160RK I recommend double checking your wiring. The ground should be separate so that is not a problem. Make sure it is secure on a clean, bare-metal surface. You could either swap the other two wires around to check and see if that is the issue or you can use a circuit tester like the # PTW2993 to determine which is the correct wire. You might also want to check the ground connection on the trailer itself coming from your wiring harness. If...
    view full answer...
  • Replacement Trailer Taillight Recommendation for a Featherlite Utility Trailer 1693
    I pulled up a picture of your Featherlite Trailer model 1693 and found that the taillights closely resemble what comes with the # TL16RK. The clearance lights of this kit are very similar to what you need as well so this would be a great starting point. For additional amber clearance lights you would need part # A91AB and then for red part # A91RB.
    view full answer...
  • Replacement Bulbs for Optronics # ST16RB Taillight
    The Trailer Light Kit you referred to uses an # ST16RB and a # ST17RB taillight, which use a 1157 replacement bulb which we offer as part # DI79VR .
    view full answer...
  • Parts Needed To Rewire and Add New Lights to a 7 X 16 Utility Trailer With Electric Trailer Brakes
    Here is a list of the parts you will need to rewire your 7' X 16' utility trailer. I have added the breakaway kit as it will be required by law as your trailer does have brakes. Hopkins 7-Way RV Style Connector # HM20087 etrailer Trailer Wiring Junction Box # 3430001-JBK Optronics Trailer Light Kit # TL16RK Bright Way Push-to-Test Trailer Breakaway Kit # 3802346 Jacketed 2 Wire (Brake Wire) # 12-2-1 (sold [per foot)
    view full answer...
  • How Does Clearance Light Included with Trailer Light Kit part # TL16RK Wire to Trailer
    The clearance lights of the # TL16RK are the part # A91AB with the bracket part # A91CB. The assembly grounds through the mounting hardware and the single wire part # A91LW that comes with it runs to the running light circuit of the trailer like you mentioned.
    view full answer...
  • Building an Off-Road Trailer to Be Towed By a Jeep Wired for Electric Brakes
    The Timbren's Axle-Less Trailer Suspension System # ASR1THDS02 that you referenced are the axles that I recommend for building your off-road trailer. The axle-less design gives you added clearance under your trailer. When using straight axles, the under trailer clearance for off road purpose can be an issue. The Timbren axles allow for more clearance down the middle of the trailer. You also need electric brake and hub and drum assemblies for these axles. I recommend the # AKEBRK-35R-SA...
    view full answer...
  • Replacement Wiring Needed for a 6 x 10 foot Trailer
    We don't actually manufacture our wiring harnesses, but we do have some options available for you. You can use the Wesbar Wiring Harness # 002220 to replace the wiring on your 6 x 10 aluminum trailer. To complete the installation you will only need a Ring Terminal # DW05702-1 and Butt Connectors, part # DW05744-5 for 5 or part # DW05744-10 for 10. Just simply splice in the lights that you have into the wiring. If you don't already have lights then you can use the Trailer Light Kit #...
    view full answer...
  • Recommended Parts For Dual Axle Trailer Complete Rebuild
    For your trailer rebuild, I recommend the Dexter Trailer Axle w/ Electric Brakes - 5 on 4-1/2 Bolt Pattern - 89" - 3,500 lbs for your tandem axles, # 35545E-ST-89. You will also want the U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts, # APUBR-1. For suspension I suggest the 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 25-1/8" Long, # SP-212275. You will then need a kit with mounts for your equalizers and shackle straps. The Tandem-Axle Trailer Hanger...
    view full answer...

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