bing tracking image
  1. Trailer Lights
  2. Optronics
  3. Tail Lights
  4. Rectangle
  5. LED Light
  6. Red
LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side

LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side

Item # STL16RB
lowest price pledge
Our Price: $33.95
You Save: 46%
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.9 lbs
In Stock
STL16RB - Stop/Turn/Tail,Side Marker,Rear Clearance,Side Reflector,Rear Reflector Optronics Tail Lights
zoom in icon
slider vertical 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

Customer Photos

Need help with installation?
Locate installers near me
8-1/16" x 2-7/8". Waterproof light acts as brake, tail, turn, side marker, side reflex reflector, rear clearance, and rear reflex reflector for trailers wider than 80". Surface mount - hardware included. 3-Wire design. PC rated. Lowest Prices for the best trailer lights from Optronics. LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side part number STL16RB can be ordered online at or call 800-298-1624 for expert service.
  • All Info
  • Reviews (189)
  • Q & A (0)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - STL16RB

  • Tail Lights
  • Rectangle
  • LED Light
  • Red
  • 8L x 3W Inch
  • Surface Mount
  • Stop/Turn/Tail
  • Side Marker
  • Rear Clearance
  • Side Reflector
  • Rear Reflector
  • Submersible Lights
  • Optronics

8-1/16" x 2-7/8". Waterproof light acts as brake, tail, turn, side marker, side reflex reflector, rear clearance, and rear reflex reflector for trailers wider than 80". Surface mount - hardware included. 3-Wire design. PC rated.


  • Rectangular trailer tail light serves 7 functions
    • Stop light
    • Tail light
    • Turn signal light
    • Side marker light
    • Side reflex reflector
    • Rear clearance light
    • Rear reflex reflector
  • Sealed, waterproof construction is submersible
  • Durable surface-mount technology (SMT) construction of LED circuit board
    • Better withstands shock and vibration
    • Allows for improved heat distribution
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide better light with less power output
    • No bulbs to replace - no brittle filaments
  • Durable plastic housing with red acrylic lens
  • Mounts on surface of trailer - hardware included
    • Designed for use on trailers over 80" wide when properly mounted
  • 3-Wire pigtail
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting
  • PC rated


  • Configuration: passenger's side (right-hand side)
  • Dimensions: 8-1/16" long x 2-7/8" wide x 2-13/16" deep
  • Diodes: 18 diodes
  • Power draw at 12.8 volts:
    • Stop/turn signal light: 0.259 amps
    • Tail light: 0.062 amps
  • Limited warranty on LEDs

Optronics 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.

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.

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.

STL16RB Optronics Combination LED Taillight for Marine Trailers More Than 80" Wide - Right Side - Red Lens

Alternate part number: STL-16RB

California residents: click here

Customer Reviews

LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side - STL16RB

Average Customer Rating:  4.8 out of 5 stars   (189 Customer Reviews)

8-1/16" x 2-7/8". Waterproof light acts as brake, tail, turn, side marker, side reflex reflector, rear clearance, and rear reflex reflector for trailers wider than 80". Surface mount - hardware included. 3-Wire design. PC rated.


I got these led lights to replace my original trailer lights. Easy to install and a lot brighter, definitely recommend them for anyone wanting to replace there old trailer lights.

Still going strong.
Al T - 06/16/2021


AAA +++ etrailer and I will get along just fine.


I used these to add auxiliary tail, turn, and stop lights to my pickup truck. I'm very pleased with the results. Hopefully they'll get people's attention.


Awesome bright LED light. So good, I ordered another set for another trailer. You will not be disappointed.


The light came extremely fast and etrailer shipped it before I could even check my emails. I bought the light for a friend since the damage was my fault.... he LOVED the new light so much and it was nicer and WAY brighter then the stock one. He ended up swapping the other side to this one and is planning on possibly switching out his other trailer lights. They are extremely bright, and in my opinion make the trailer safer and look a whole lot better. I will definitely use etrailer again for ANY trailer and light needs in the future and highly recommend them, you will not be disappointed!


Easy to install in place of older bulb unit. Nice to not have to disconnect trailer when loading/unloading boat.


Light worked great up to about two weeks ago. Running light portion of light stopped working. Still have brake and turn single light works. A bit disappointed the full function of tail light does not work. With only a year and less than 400 miles on trailer since tail light was installed.

I recommend to first make sure the ground wire of the light is is attached to a clean metal surface on the trailer frame. A bad ground will intermittently cause one of the functions to not work properly. If the ground of the trailer does not prove to be adequate you could run it up to the ground circuit of the trailer connector.
-- Etrailer Expert Heather A - 06/24/2020


as the original pair like it I bought last year leaked water into the brake light bulb enclosure, rendering it inoperable. I like the way these lights work, but for the problemt.


The light installed easy enough. Functionally, it worked great. However, two times into the water and it failed. I had to buy another light locally for a trip. I'm disappointed since the move to more expensive LEDs was suppose to eliminate all the poor reliability of incandescent bulbs. I guess not. :-(


I like the quality. Delivery was a bit slower than I like but it came in time. I was happy to be able to buy just one light as opposed to a whole kit. Some nice person hit my trailer broke the light and kept going. I replaced the one, unfortunately they are not a complete match and this replacement is not as bright as I like. It's going to kill me but for now I have mismatch lights with a less bright one. :(


Just a replacement for a light that was broken during Winter storage.


Great upgrade for my 25 year old motorcycle trailer. Looks great, works great too.


Excellent product, Easy to install and electrical hookup. It replaced a busted LED tail light. I leave my trailer lights plugged in when I launch the boat into salt water and have had no problems with the light malfunctioning. Very good light.


Bought this as part of a complete trailer refurb. Nice product, although priced a little higher than I thought it should be. Looking forward to installing. Sales rep was very polite and helpful.

This project turned out great! I really like buying from etrailer. They always have what I need, along with great customer service and fast shipping.
Kenneth - 01/20/2020


Good quality and easy to install. Worked the first time and continues to do its job.


I needed to replace some of the lights on my boat trailer. The old light were incandescent and some of the bulbs had burned out, securing screws were rusted. Product was exactly what I was looking for. Links on each product web page provided very good description and product information. Thank you for great selection and process.

I am very happy, the lights are working great, with no issues. Thank you
Phil Z - 11/21/2017


This is a replacement for one destroyed. I received it today, it was damaged in shipping. I called to see what I needed to do to replace the replacement. I had one on the way before I got off the phone. I've bought from Etrailer several times in the past, this was my first time with customer service. I had no problems, they were super nice to me on the phone today. The problem wasn't their fault, it's evident to me that the box was put under a heaver box when shipped by the carrier. Thanks for a speedy fix


Product worked perfectly. No issues so far


Boat trailer light has been submerged many times over the last year. Still burning bright and fully functional.


Good part, fast shipping as always

Still working good.
Joe - 01/20/2021


Produce was shipped within one day of my order. The tracking was accurate and informative. After a minor accident where the tail light on the passenger side of my boat trailer was damaged, I appreciate the fact that I could order just the one taillight I needed for replacement.


No problems


Great and easy install replacement for my old lights. Fits perfectly and installation is easy. Cost more then the old incandescent type but I hope to never worry about burned out bulbs in a sealed submersible light. etrailer shipped super fast.


Taillight matched my other trailer light perfectly. Saved me from buying a whole new set. Shipping was super fast and I would suggest your company to anyone who needs trailer products. Will definitely buy from E-trailer again. Thanks

Actually the lights say they are submersible, but they actually leaked and blew out most of the led bulbs. Would not purchase again.
Robert M - 10/02/2019


There were a perfect fit replacement for my 1992 Tracker Trailstar boat trailer. It had Wesbar 3348 tailights on it. These look exactly the same but they have sealed LED capsules inside. It was gonna be the same price to replace the old style bulb capsules in the Wesbar's as it was to but these whole brand new sealed LED tails. The are very clear and bright. Huge improvement!

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Replacement Tail Lights For Diamond City Angler 2072 Boat Trailer
    The Optronics LED Combination Trailer Tail Lights # TLL160RK contains both the drivers and passenger side tail lights that match your Diamond City Angler 2072 Boat Trailer. I was able to confirm with Diamond City that you have the Driver Side # STL17RB and Passenger Side # STL16RB tail lights.
    view full answer...
  • Kit that Includes Trailer Taillights part STL16RB and STL17RB
    We have the two lights you mentioned in a kit that includes a license plate bracket, wiring, and mounting hardware with part # TLL16RK. The price is down below at attached product links.
    view full answer...
  • Replacement Lenses For Rectangular Tail Lights With 18 Diode LED Configuration
    With Tail lights, often the replacement lenses are difficult to match. Manufacturers sometimes offer lenses and other times do not, and there isn't an industry standard size or shape, so there is a lot of variety. Unfortunately I cannot confirm it is the light you are referring to, but I can tell you that we have a 18 diode LED Tail Light for Trailers Over 80" Wide - 7 Function - Submersible - Red Lens - Passenger, # STL16RB by Optronics. The Replacement Tail Light Lens for that light...
    view full answer...
  • Need Submersible LED Taillight for Tracker Trailstar Trailer Lamp Part Number S2T216AP2
    From what I've found online, the proper replacement for your S2T216AP2 is # STL16RB for the passenger side and # STL17RB for the driver side. The # ST37RB lamp you'd looked at is a little smaller and is an incandescent lamp, not an LED.
    view full answer...
  • Ranger Boats LED Trailer Light Pigtails Adapter Availability
    I have a couple of good options for you but there aren't any available adapters. Instead you will remove your current pigtails like the Optronics 2-Wire Marker Light Pigtails part # AL42PB. Once removed you add the the 2-Wire Pigtail for Optronics Backup and Utility Trailer Lights - 2-Prong PL-3 Plug part # A45CB for a straight wire or the Peterson 2-Wire Pigtail for Trailer Lights part # 142-49 for the right angled wire. To protect the splices I recommend using the Deka Heat Shrink...
    view full answer...
  • Replacement Passenger Side Tail Light for Sun Tracker Trailer
    It definitely looks like you need a new tail light assembly for your 2017 Sun Tracker trailer. I recommend the LED Combination Tail Light for Trailers over 80" Wide - Submersible - Red - Passenger Side # STL16RB because of its long-lasting, bright LEDs, easy surface-mount and its waterproof housing. It may be a good idea to replace your driver's side light as well with the accompanying LED Tail Light for Trailers Over 80" Wide - 8 Function - Submersible - Red Lens - Driver # STL17RB, or...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Replacement Taillights for Shorlandr Boat Trailer
    The best option we will be able to offer for taillights for a Shorlandr boat trailer is a new set of matching taillights and for this I recommend LED Combination Tail Light part # STL17RB for driver side and part # STL16RB for passenger side. These lights are seven/eight function and measure 8-1/16" long x 2-7/8" tall x 2-13/16" deep. I won't have any good replacements to match up to the part you listed unfortunately. I have attached our full section as well if you would like to opt for...
    view full answer...
  • Trailer Light Kit Recommendation for Ranger Boat Trailer
    A great choice for your boat trailer is the Aero Pro LED Trailer Light Kit for Trailers Over 80" Wide # TLL36RK. This kit includes 2 tail lights which serve 8 functions (Stop, turn, tail, side marker, rear clearance, side reflector, rear reflector, and license plate light) and 2 sidemarker lights, all fully submersible. It also includes a license plate bracket, stainless steel mounting hardware, quick splice connectors and a 25 foot long wishbone harness with a 4-pole flat. I definitely...
    view full answer...
    Image 1 for
  • Triton Utility Trailer LED Light Replacement
    I pulled up pictures of your Monarch trailer lights and the closest LED taillight assemblies we carry are the part # STL17RB for the driver side and part # STL16RB for the passenger side.
    view full answer...
  • Replacement Tail Lights for 2017 Trailstar Boat Trailer
    From what I could find it looks like your 2017 Trailstar boat trailer has the Optronics LED Combination Trailer Tail Lights # TLL160RK which are submersible and have dimensions of 8-1/16" long x 2-7/8" tall x 2-13/16" deep. This kit includes lights for both sides of the trailer but you can also get them individually as part # STL17RB for the driver's side or part # STL16RB for the passenger's side. The numbers that you gave me actually have to do with the testing of the lights themselves...
    view full answer...
  • Replacement Tail Light Lens on a Snowmobile Trailer with Optronics Tail Lights
    If your tail lights look like # STL16RB or # STL17RB, then you can use the Replacement Tail Light Lens, # A16RB. This is the correct replacement if the tail light has incandescent bulbs. If it is an LED tail light, use # AL16RB. If the lens portion is deeper on your lights than those pictured, you may have a 26 series light like # STL26RB as an example. The 1/16 of an inch would be the very first tick mark after the 8 inch line on a ruler (provided the ruler measures in 1/16 increments)....
    view full answer...
  • Replacement Taillight for Heritage Boat Trailer
    If you're speaking of the # 106410 Wesbar Combination trailer tailllight, this particular lamp has a removable lens, and an interior capsule that can be removed by loosening 4 screws which will allow you to change the bulb. Some of the earlier versions used a self-contained capsule that needed to be replaced in entirety, but those are obsolete and are no longer available. Some of those lamps used a ground wire that attached to the trailer frame and two wires that terminated in a 2 pin connector,...
    view full answer...
  • Replacement LED Marker Lights for Featherlite 3110 Tandem Axle Aluminum Car Hauler Trailer
    I checked the Featherlite website for photos of the LED lights used on their tandem axle aluminum car hauler trailer model 3110. The specs for this trailer indicate it uses LED type clearance and stop/turn lights but brand and dimensions are not provided. We do offer replacement LED lights for most trailer applications. Our main page for LED lights, which is linked for you, allows you to sort the results shown by just clicking on the characteristics you need, such as shape, color and mounting...
    view full answer...
  • LED Tail Lights for a Ranger Trail XT188 Boat Trailer
    I checked with Ranger and the current generation of the Trailer RT188 uses the 6 inch oval tail lights. For those the Miro-Flex Trailer Tail Light # STL22RB is a great option for an LED upgrade. These lights use pigtail # A47PB and will fit the mounts currently on the trailer. If your trailer has different tail lights, such as those that hang from studs then # STL16RB and # STL17RB are great options for that mounting style. If neither of the recommendations above are the light style or...
    view full answer...
  • What is the Difference Between Over 80 inch and Under 80 inch Trailer Tail Lights
    A trailer that is over 80 inches wide is required by DOT regulations to have rear clearance lights. An over 80 inch taillight kit, like part # TLL16RK, will have the side clearance light built into it. An under 80 inch taillight does not have the clearance light built in and an additional red, rear side marker light would be required if you used an under 80 inch rated light on a trailer that is over 80 inches wide. Using an over 80 inch taillight on a trailer like yours that is under 80...
    view full answer...
  • Troubleshooting LED Trailer Light Installation
    The first thing I would do is check that the white ground wire is attached solidly to a clean metal surface on the trailer frame. A bad ground will prevent a light from working, if the ground of the trailer does not prove to be adequate you could run it up to the ground circuit of the trailer connector. The next thing you will want to do is make sure that the # STL16RB is wired correctly by function and not just by wire color. Normally the colors of a 4-way will be the standard colors...
    view full answer...
  • How to Combine Stop and Turn Signals for Flat Towing with a Diesel Pusher
    To combine the stop (brake) and turn signals on your diesel pusher you will need to use a converter like the Roadmaster Brite-Lite Converter # RM-732. Simply connect the individual signals to the one end and then connect the wires with the combined wiring to the correct points on the 7-Way. I have attached a photo showing the typical signal locations for a 7-Way. If you were to toss a jumper wire between the stop and turn signal functions then it would cause your lights to receive mixed...
    view full answer...
    Image 1 for
  • Recommended Replacement Light Kit for Wesbar 3504 Trailer Tail Lights on Enclosed Trailer
    I have a lighting kit that will work well for your utility trailer. The kit I recommend is the Optronics Waterproof, Over 80 Inches LED Trailer Light Kit with 25 Foot Wiring Harness # TLL16RK. This kit includes LED waterproof taillights that will illuminate the license plate under the left side taillight. The taillights measure 8-1/16 inches wide x 2-7/8 inches tall x 2-13/16 inches deep. The depth of these taillights is more than the 2-1/4 inch to 2-1/2 inch depth you provided, but these...
    view full answer...
    Image 1 for
  • Replacement 8x3 Submersible Tail Light for 2007 Four Winns Horizon 200 Boat Trailer
    I believe what you're referring to is something like the lights which come in the Optronics LED Tail Light Kit # TLL160RK. These measure 8-1/16" long x 2-7/8" tall x 2-13/16" deep and are submersible so they are perfect for your 2007 Four Winns Horizon 200 boat trailer. You can get them in the kit mentioned above or just for individual sides with part # STL17RB (driver side) or part # STL16RB (passenger side).
    view full answer...
  • Converting Separate Turn Signals and Brake Lights to Combined Turn and Brake Lights on a Trailer
    If the trailer is one that is pulled by a motorcycle or a trailer designed to carry a motorcycle, you will need a converter in order to convert the wiring system used by the 6-Way to a 2 wire system used by trailer lights. The converter you can use is # RM-732. This takes the separate turn and brake signals and makes them a combined circuit. When you hit the brakes with the turn signal on, it should blink on one side and the other side will remain a solid brake light. The converter will...
    view full answer...
  • Trailer Taillight Lens Recommendation to Replace AISTP2 85
    If your tail lights look like # STL16RB or # STL17RB, then you can use the Replacement Tail Light Lens, # A16RB. This is the correct replacement if the tail light has incandescent bulbs. If it is an LED tail light, use # AL16RB.
    view full answer...
  • LED Trailer Taillight Recommendation that Has License Plate Light
    The Bargman 84 and 85 series taillights like the # 47-84-610 that you referenced don't have a license plate light, so a better option will be the # STL17RB for the left hand side light and then part # STL16RB for the right hand side. Then for a license plate bracket you would want the # LP5SB. The # STL17RB has a license plate light.
    view full answer...
  • Replacement LED Submersible Trailer Taillight Recommendation for 2007 Stratos Trailer
    Yes, the LED Tail Light for Trailers Over 80" Wide # STL17RB and # STL16RB would work well for your 2007 Stratos 176xt carrying trailer. These lights are submersible which means that all of the circuits are waterproof and protected from the water but water will run through just the housing of the light. I attached a review video for this light for you to check out as well.
    view full answer...
  • Replacement Trailer Taillight Recommendation to Replace STL18RB on Trailer
    You are correct in that the OPT of the part number stands for Optronics. What you would want is the part # STL16RB for the passenger side replacement light and the part # STL17RB for the driver side. The STL18 is no longer around but the lights I mentioned will work great as a replacement.
    view full answer...

< Previous

Do you have a question about this Trailer Light?

  • Why

    At we guarantee:
  • Highest quality trailer lights 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 trailer light 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:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Reno H
Expert Research:
Reno H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Adele M
Updated by:
Adele M
Employee Laura H
Updated by:
Laura H
Employee Amy B
Updated by:
Amy B
Employee Wilson B
Updated by:
Wilson B
Employee Kathleen M
Video by:
Kathleen M
Employee Dustin K
Video by:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee David F
Installed by:
David F

At 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.