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Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens

Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens

Item # STL42RB
Retail:$24.33
Our Price: $15.94
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Shipping Weight: 0.33 lbs
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Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens Recessed Mount STL42RB
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5-1/2" Diameter round. Waterproof trailer light serves 3 functions: stop, turn, and tail. Durable polycarbonate lens and housing. Mounts on trailer with built-in flange. Accepts standard 3-prong plug. Great Prices for the best trailer lights from Optronics. Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens part number STL42RB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (327)
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Optronics Trailer Lights - STL42RB

  • Tail Lights
  • Round
  • LED Light
  • Red
  • 4 Inch Diameter
  • Recessed Mount
  • Stop/Turn/Tail
  • Submersible Lights
  • Optronics

5-1/2" Diameter round. Waterproof trailer light serves 3 functions: stop, turn, and tail. Durable polycarbonate lens and housing. Mounts on trailer with built-in flange. Accepts standard 3-prong plug.


Features:

  • Red round trailer light serves 3 functions on trailers
    • Stop light
    • Tail light
    • Turn signal light
  • Sonically sealed, waterproof housing and lens unit is submersible
  • 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
  • Durable polycarbonate lens and housing
  • Red lens over white LEDs
  • Mounts on trailer with built-in flange - hardware not included
    • Requires a 4-1/2" round hole for installation
  • Accepts industry standard 3-prong plug (A45PB and A47PB - both sold separately)
  • DOT compliant


Specs:

  • Dimensions: 5-1/2" diameter x 1-15/16" thick
  • Distance between mounting holes (center on center): 4-1/4"
  • Diodes: 10
  • Power draw at 12.8V:
    • Stop/turn: 0.413 amps
    • Tail: 0.0.26 amps
  • LIfetime warranty on LEDs


Manufacturer Cross Reference
Light will work as an exact replacement for:
  • Truck Lite # 44326R
  • Grote # 53292
  • Peterson # M418R-2

Optronics STL42 Series 4 Inch Round LED Light with Mounting Flange Diagram

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.



STL42RB Optronics LED Trailer Tail Light - Stop, Turn, Tail - Waterproof - 10 Diodes - Round - Red Lens

Alternate part number: STL-42RB




California residents: click here


Customer Satisfaction Score:


Customer Reviews

Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diodes - Round - Red Lens - STL42RB

Average Customer Rating:  4.9 out of 5 stars   (327 Customer Reviews)

5-1/2" Diameter round. Waterproof trailer light serves 3 functions: stop, turn, and tail. Durable polycarbonate lens and housing. Mounts on trailer with built-in flange. Accepts standard 3-prong plug.

by:

The trailer tail light fit perfectly on our 2011 Montana camper.
I would purchase the lights again!!



by:

All the trailer lights were OEM and fit perfectly



by:

I always find the right parts for my boat trailer. The service is great I like to keep a spare set of lights for my2008 Ranger trail trailer



by:

Used these to replace old lights on my horse trailer. Installation was easy and they are very bright. I had issues with a connector on my first order, but the second was just fine. I also had issues with one being dim, but found out it was my trailer plug. Once it was replaced, it was great! Would use these on another trailer if needed.



by:

Excellent replacement tail light



by:

I think they should work.



by:

Part fit perfectly and works great!!
Easy
to order and received part sooner than expected!
Recommend etrailer to anyone.
Thanks!!

Lamar

6/15/2023

Still working great. Would recommend to anyone!!



by:

Great service, great product



by:

I put these LED lights on my 1967 Scotty. They have a nice clean look, and show up so much better than the originals. The wiring process, with the plug in connections, was easy!



by:

Excellent quality of there product.



by:

Worked as should for 2009 Ranger bass boat trailer !



by:

Great lights, very bright and visible day and night, much much better than the factory bulb light. I have recommended them to our friends who have RV's
Thanks etrailer



by:

Lights are great and fit perfect in my ‘09 Z520 Ranger boat trailer. Only reason for the 4star rating is because some of LEDs went out in the first set I bought. Four of the ten diodes would be lit but very dim. Thought it might be a ground wire or something on my trailer. It was not. This happened about three years after I put them in. I guess for how easy/inexpensive they are, it’s a good value still.



by:

100 times better than the original lights I had with traditional bulbs. With the LEDs you can see them even better during the day. Which is nice to know that people can see me at all hours of the day.



by:

Arrived promptly and was packaged in a protective box with padding to protect it during shipment. This was the first time I ordered from the company. I found the stop lights to be a quality product and would order from etrailer again!

Joseph

1/30/2023

I used these lights in conjunction with a wig-wag flasher unit to build a Railroad Crossing replica for my model railroad train room. Works and looks great in the sun-blocker shades I built around each.



by:

On time ,fits my boat trailer and works as it should. Thanks for the quick service



by:

They look great and are plenty bright. Don't forget to get those wiring pigtails though. These do not have any way to connect without them. No external wires, just a 3-prong connection on the housing.

Bryan

11/3/2021

These have been a good replacement for the old incandescent lights. Still working great.



by:

Perfect fit, wiring as described! Perfect upgrade for our 60s Sears Tent Trailer



by:

Thanks... the light is perfect and at a great price. The other place wanted $26.00 for the same light and you charged much less. I highly recommend etrailer.com for parts.



by:

These are exact replacements for my 2009 RangerTrail trailer. Fit perfectly.



by:

Fit perfectly on my trailer and works g reat!



by:

nice lights



by:

These lights worked out great. good price too!
EZ install.

David

7/10/2020

Still working great!!



by:

Just what I needed for a perfect replacement on my boat trailer



by:

Very imprest with your service and follow-up to make certain the product arrived. Customer service is more important than the product in my opinion. (Recently bought a fully equipped 3500 ram dually Laramie longhorn truck-paid cash-and went to 3 dealership B4 I found a good service dept. Next purchase will be with this dealership regardless of price. Could probably get some of my needs cheeper thru Amazon but because of your service I will be dealing with you.


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See what our Experts say about this Optronics Trailer Lights

  • What is Amp/Hour Rating of Optronics LED Trailer Tail Light # STL42RB
    Yes, the amp rating of the Optronics LED Trailer Tail Light # STL42RB being .413 amps is the amp/hour rating. That means that it would draw that much amperage over the course of an hour if that circuit was used.
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  • Trailer Light And Mounting Bracket Recommendation
    The Optronics light, part # STL42RB, you are asking about uses the mounting holes in the included flange for mounting. This light features 10 Super LED lights and has a sealed, waterproof housing and lens kit. The mounting holes in the flange are spaced 4-1/4 inches apart center-to-center. We do have a mounting bracket, part # BK45BB, for a 4 inch light but the mounting holes are spaced 4 inches center-to-center. If you wished to drill the holes in the bracket to match the holes in the...
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  • Parts Needed to Install Optronics LED Lights on Custom Bumper on 2012 Toyota Tacoma
    Both of the Optronics LED stop/turn/tail lights you referenced, parts # STL72RB and # STL42RB, use a 3-prong connector, either straight plug # A45PB or right-angle plug # A47PB. These fit the receptacles on the back of the light housings and provide 10-inch pigtails leads for connection. For a plug-n-play 4-pole harness to power the lights you can use the Tekonsha kit # 118496 which connects at the Tacoma's taillights with custom-fit connectors. You'll then cut off the 4-pole plug and...
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  • Need Amber Taillights Like the Sealed 4" Round LED Trailer Taillight # STL42RB
    When it comes to the Sealed 4" Round LED Trailer Taillights, # STL42RB, the amber version is part # STL42AB. I have included two short videos for you.
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  • Availability of 2 Inch Round LED Tail Lights for Trailer
    The closest match we have to the 2 inch stop/turn/tail lights you referenced are 4 inch round LED tail lights with grommet mount, # STL42RB. This is a 4 inch round clear back up light that has an overall diameter of 5-3/4 inches and a depth of 1-5/8 inches. This light will require a standard 3 prong plug, # A45PB. At this time we do not have any 2 inch stop/turn/tail lights.
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  • Is Optronics LED Trailer Tail Light # STL42RB Sold Individually or In Pairs
    The Optronics LED Trailer Tail Light # STL42RB is sold individually. If you needed a pair you'd need to order a quantity of two of these. For a wiring harness you'd then need the part # A47PB and for a mounting bracket part # BK45BB and you'd be set.
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  • Can Silverado with Separate Turn Signal Circuits be Wired to Taillights that are Combined
    We have taillight converters like the # RM-732 which will take a separate circuit setup like your Silverado has and combine them so that you can use the circuits on the lighting you have now that was designed for combined circuits.
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  • What Size Hole Needs to Be Cut To Install the Sealed 4 inch Diameter Optronics Light STL42RB
    To install the Sealed, 4" Round LED Trailer Stop, Turn and Tail Light, Flange Mount Light # STL42RB that you referenced you will need to drill a 4-1/2 inch hole for the light to fit and the mounting holes will be 4-1/4 inches apart on center. For a pig tail harness you will want the part # A45PB.
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  • Do Trailer Lights Sometimes Ground Through Mounting Hardware
    There are quite a few trailer light assemblies that use the mounting bracket as the ground. This works because the mounting brackets typically get attached to metal surfaces that touch the trailer frame which is where the ground strap of the trailer wiring harness connects. You can run a jumper wire from the mounting hardware to the main ground wire of the trailer if you wanted to as well.
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  • Can Utility Lights in Trailer Run Off Running Light Circuit Through a Switch on an Aluminum Trailer
    Yes, you can run the switch power wire to a clearance light but the trailer would have to be connected to the vehicle with the running lights on for the interior lights to have power. Aluminum does not offer the best ground so if the lights do not work you may have to run a jumper ground wire to a steel component or the main trailer connector ground. I would try it first to see if there is any problem with grounding to the aluminum surface. A fuse is not needed though you could add one...
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  • Replacement Taillights, Wiring and 7-Way Connector for Car Hauler
    To fit the round 4-1/2 inch holes on your trailer for the rear brake lights you could use the # STL42RB as this will fit in that hole. For a pigtail harness you would also need # A45PB. For the side clearance lights you would need to enlarge the holes to 3 inch in diameter, use the # A55GB as a grommet and then use # MCL59AB for the lights and # A46PB as a wiring harness. For a replacement 7-way with 8 feet of wire for running new wire everywhere you would want the part # H20046. You...
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  • Pigtail for Optronics #42 Series Trailer Lights
    The Optronics LED Trailer Tail Light # STL42RB comes with the light assembly only, but we do have the following pigtail styles to choose from: - Right Angle 3-Wire Pigtail # A47PB - Straight 3-Wire Pigtail # A45PB
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  • Round LED Trailer Tail Lights to Replace Peterson Incandescent Lights
    Three inches is small for a tail light. There aren't even any incandescent stop, tail, and turn lights as small as 3 inches. It looks like to get what you want you will need to got to a 4 inch light. If you like the Peterson lights and need a flush mount that mounts in a grommet you could use # 435800. It does use the plug-in style connector but you would still hardwire all of the wires, including the grounds, to the trailer. This light includes the grommet and pigtail. I have included...
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  • Will Optronics Trailer Tail Light # STL42RB Fit a 1974 Blair Horse Trailer
    I went out to the warehouse and pulled an Optronics tail light, # STL42RB to measure the back to determine the size hole you would need. The trailer would need, or you would need to cut, a 4-1/2 inch diameter hole. The lights will fit the 4-5/8 inch mounting hole. You would also need a pig tail harness # A45PB.
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  • Could Use a Trailer Light Mounting Bracket with a Sealed 4 Inch LED Stop Light
    Yes, I went out into our warehouse and pulled a Sealed, 4 inch Round LED Trailer Stop # STL42RB and a Trailer Light Mounting Bracket # BK45BB and found that they work together very well. All of the mounting holes from the # STL42RB line up with the # BK45BB. You would need bolts that have a diameter of no more than 3/16 of an inch to attach the light to the bracket. I attached a picture to the right that shows how these products would look if installed together. You might also be interested...
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  • Replacement Tail Light For Forest River Georgetown XL RV
    I'd be happy to assist you. It sounds like you need the Sealed, Flush Mount Tall Rectangle LED Trailer Stop, Turn and Tail Light, Grommet and Plug, 12 Diode # STL34RB but most of the pictures I see have round tail lights like the Sealed, 4" Round, LED Stop/Turn/Tail light, 21 Diode - Red # STL55RB. If this is not the correct part, then send me a photo with the measurements of the light and we will get you what you need. The numbers and letters that are actually printed on the light are...
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  • Replacement LED Tail Light For Pacific Trailer
    We have LED trailer lights available. If you have the dimensions of the light you want to replace that would help in finding the right replacement for your Pacific trailer. From my research I found that some of the Pacific trailers use part # STL42RB. This is a 4-inch round flange mount light that has 10 LEDs. It is a three function stop/turn/tail light. If you need a flush-mount light, we also have part # STL43RB. this is also a 3-function 10-LED light. If you are looking for an oval...
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  • Turn Signal and Brake Lights Stop Working on Trailer When Headlights are On
    This sounds like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare...
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  • Replacement LED Trailer Light to Reduce Power Draw
    The Optronics LED Trailer Light # STL42RB is not what I could call an exact replacement for the # ST40RB but for all purposes it will be what you're looking for. The # STL42RB is 1/8 inches larger in diameter and 3/8 inches deeper so at the most you may need to do a little filing to the opening for the light in your trailer to install it. The mounting flange is metal. There is also a Stainless Steel Trim Ring # A5TRSSB available. It does not include a gasket, however If you would prefer...
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  • Backup Lights Similar To the Optronics 4 Inch Round LED Trailer Light # STL42RB
    The closest backup light that we carry to the 4 Inch Round LED Trailer Light, # STL42RB, is the 4 Inch Round LED Backup Light, # BUL11CBX. This is a 4 inch round clear back up light that has an overall diameter of 5-3/4 inches and a depth of 1-5/8 inches. This light will require a standard 2 prong plug, # A45CB, and has a reflector on the mounting flange.
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  • How to Ground a Trailer LED Light that Only has 1 Wire
    If a light has just 1 wire that means that it grounds through its mounting hardware. Be sure to use steel hardware and mount the light to a clean and corrosion free bare metal surface. If there isn't a steel surface where you want to mount the light you can place a ring terminal with attached wire between the hardware and mounting surface and attach the other end of the wire to a steel surface.
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  • How Does a Trailer Light Mount in the Buyers Products Light Box 337LB663
    The Buyers Products Tail Light Mounting Box - 4" Round Hole # 337LB663 is designed to be used with something like the Rubber Grommet for 4" Round Trailer Lights # A45GB and Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible # STL55RB. The light will snap into the grommet, which will then snap into the mounting box. The wires of the 3-Wire Pigtail for Optronics Trailer Lights # A45PB will need to be run through the small hole that is drilled into the box, but this can be a...
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  • Converter Recommendation to Install Combined Taillights on a Flatbed Truck that had Separate Bulbs
    It sounds like you need to convert the separate wiring of your 1991 Nissan truck to a combined setup to work with the Round LED Taillight # STL42RB. For this you will need to get a Roadmaster Brite-Lite Wiring Converter # RM-732. You will run the wires from your vehicle to the right side of the # RM-732 by function, and then from the left side of the box you will run the corresponding left or right turn signal wire to the red wire of the # STL42RB. The tail light circuit will bypass this...
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  • Replacement Option For Glo-Brite 9891-88 LED Trailer Tail Light
    We do have an option for you to replace your Glo-Brite 9891-88 LED trailer tail light. Based on my research this is a 4 inch round LED tail light that uses a 3-wire plug and fits in a 5-1/2 inch grommet. We have exactly that with the following light: - Optronics LED Trailer Tail Light # STL42RB This comes with the grommet, which has mounting holes separated on center by 4-1/4 inches, so the only other thing you will need is the 3-wire pigtail, and you can choose from a standard or right...
    view full answer...


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