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

LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Weathertight Plug - Red Lens

Part Number: STL42RMB
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$27.49
Retail:$31.82
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Trailer Lights STL42RMB - LED Light - Optronics
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4" Diameter round. 3-Function, waterproof LED light acts as a brake, tail, and turn signal. Durable polycarbonate housing and lens. Recessed mount with built-in flange. Weathertight connection requires weathertight plug. Great Prices for the best trailer lights from Optronics. LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Weathertight Plug - Red Lens part number STL42RMB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (32)
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Optronics Trailer Lights - STL42RMB

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

4" Diameter round. 3-Function, waterproof LED light acts as a brake, tail, and turn signal. Durable polycarbonate housing and lens. Recessed mount with built-in flange. Weathertight connection requires weathertight plug.


Features:

  • Round LED trailer tail light serves 3 functions
    • 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
  • Compatible with 12V DC systems
  • Recessed mount with built-in black flange - hardware not included
  • Weathertight connection connects to weathertight plug (AL45PWTB - sold separately) to work with industry standard 3-prong plug
  • DOT compliant
    • Meets FMVSS 108 and CMVSS 108 requirements for automotive lighting


Specs:

  • Dimensions with flange: 5-1/2" diameter x 1-15/16" deep
    • Light face: 4" diameter
  • Distance between mounting holes (center on center): 4-1/4"
  • Diodes: 10
  • Power draw at 12.8V:
    • Stop/turn: 0.413 amps
    • Tail: 0.026 amps
  • Lifetime warranty on LEDs


Optronics Light 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.


Weathertight Connection

Optronics Weathertight Connection

This light has a weathertight connection as pictured above (weathertight plug sold separately). This type of connection is designed to help block out moisture.



STL42RMB Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Weathertight Connection - Red Lens




California residents: click here


Customer Satisfaction Score:


Customer Reviews

LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 10 Diodes - Weathertight Plug - Red Lens - STL42RMB

Average Customer Rating:  4.4 out of 5 stars   (32 Customer Reviews)

4" Diameter round. 3-Function, waterproof LED light acts as a brake, tail, and turn signal. Durable polycarbonate housing and lens. Recessed mount with built-in flange. Weathertight connection requires weathertight plug.

by:

Nothing like ordering a product, waiting for it to arrive, only to discover it's useless without another part that's sold separately. You cannot wire this without an additional pigtail. This is the second time I've received a product from etrailer that required something else to be bought separately....

Etrailer Expert

Heather A.

9/12/2017

You are correct, this LED Trailer Tail Light requires a pigtail to wire it in. Part # AL45PWTB to fit industry standard 3 prong plugs or part # A45PMB for the hardwire version.



by:

Fast service! Will use again!



by:

Light has worked great as expected! No issues and was direct replacement for original light.



by:

Easy ordering and fast delivery. Only thing I will add is that the wiring connection on the back was different than mine and I had to order the connector harness that plugs into this new light and the old connection on my trailer. I don’t think this was mentioned in the product info. All is good! Thanks



by:

Good service and good product



by:

I can't believe how thin and cheap this plastic junk is, for the price I thought they would be professional grade. They don't even include the plug that is required to install them.



by:

Just what I needed to replace the old lights on my tow dolly. I had to make the holes slightly bigger to fit the unit in, but I’m hoping I won’t have to replace them again for a long time.



by:

Very bright, really like the weather tight connectors.



by:

No gasket with light. The white lights I ordered had new gaskets. Had to use old gasket

Etrailer Expert

Brooke M.

10/13/2021

Thank you for the review! Our customer service team should be reaching out to you in the near future.



by:

Perfect fit but connector has changed and you need to purchase Item # AL45PWTB to eliminate need to cut and splice factory wiring.



by:

Worked great. Improvement to old style bulb lights!



by:

Was a perfect replacement for the old burned out lights on my Featherlite stock trailer!!!



by:

Thanks I received everything and it was what I expected. As I do more work on trailers I will be a returning customer.



by:

Great addition



by:

Good customer service



by:

Exelant quality and good price



by:

Order was processed and delivered quickly. Exceeding my delivery expectations for ground. Continuous follow up on the order. Savings was great. Definitely will be back.



by:

work fine. thanks.



by:

Fits the rebuilt of antique truck. Just what was needed. POSITIVE!



by:

Service was great. Thanks.



by:

Excellent product and price.



by:

A+++



by:

Great service. easy process.



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See what our Experts say about this Optronics Trailer Lights

  • How to Determine Correct Replacement Round Tail Light For Trailer
    Thank you for the photo; and while we can tell you how to determine the correct replacement round, red tail light for your trailer, we don't have any way of knowing the exact light because unfortunately there isn't any type of list of replacement parts for trailers (the SAE number on that is not a part number, SAE stands for Society of Automotive Engineers and means it passed its standards test). So in order to determine this, however, you will simply need to measure your tail light and...
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  • Replacement Taillights for 2022 GMC Baybridge Cutaway Box Van Th
    A lot of box van and service body lights are trailer taillights like the # STL42RMB that you referenced so it would not surprise me if this is what you have/need. If yours measures 5-1/2 inches in diameter overall then this would work great as an easy replacement and would wire in pretty easy as well.
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  • Will 4" Round LED Light Fit 4" Recessed Opening
    The LED Trailer Tail Light # STL42RMB you're looking at has a lens with a 4" diameter but the hole needed to install it needs to have about a 4-1/4" to 4-1/2" diameter. This is the case with all of the 4" diameter lights though so you might end up needing to make the hole a little larger so you can install a light. Please note that this has a plug at the back side of it so you'll need the 3-Wire Pigtail # A45PMB as well to connect this to your trailer wiring.
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  • Recommended Trailer Tail Lights for 4.25 Inch Opening
    The LED Trailer Tail Light # STL42RMB has screw mounting holes that are 4-1/4 inches on center. The smallest hole this light will fit is 4 inches. You will have difficulty mounting this light as your opening matches the mounting hole locations so you won't get proper hold. You may want to use the Rubber Grommet for 4" Round Trailer Tail Lights # A45GB along with the # STL55RB which won't use any screws to mount. You will also want the 3 wire pigtail # A45PB.
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  • Looking For Replacement Round Tail Light Kaper II L15 0072 On 2019 Fleetwood Bounder 33C
    Hello Linda. We do offer several round tail lights which very well may work on your 2019 Fleetwood Bounder 33C, although we do not have a direct replacement for the Kaper ii L15 0072 LED since we do not carry this brand. I was not able to find any specs online for this Kaper ii L15 0072 LED that would tell me the exact size though. In the pictures I found, it looks very similar to the Optronics LED # STL42RMB. This light is 4" in diameter with the flange being 5-1/2" in diameter. Please...
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  • Replacement Trailer Taillight for ST-40 RS
    Hey Richard, I did some digging and that part number looks to cross reference with the part # STL42RMB for an LED replacement. This is a recessed mount 4 inch diameter trailer taillight.
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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Amy B
Written by:
Amy B
Employee Brian T
Updated by:
Brian T

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