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Optronics Trailer Tail Light - Weatherproof - Stop, Turn, Tail - Incandescent - Red Lens

Optronics Trailer Tail Light - Weatherproof - Stop, Turn, Tail - Incandescent - Red Lens

Item # ST31RB
Our Price: $10.72
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4-9/16" x 2-1/2" Rectangle. Weatherproof, incandescent trailer tail light serves as a stop, turn, and tail light. Durable steel housing. Surface mount to trailer - hardware not included. 2-Wire design. (1) 2057 bulb. Great Prices for the best trailer lights from Optronics. Optronics Trailer Tail Light - Weatherproof - Stop, Turn, Tail - Incandescent - Red Lens part number ST31RB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (39)
  • Q & A (0)
  • Photos

Optronics Trailer Lights - ST31RB

  • Tail Lights
  • Rectangle
  • Incandescent Light
  • Red
  • 4-9/16L x 2-1/2W Inch
  • Surface Mount
  • Non-Submersible Lights
  • Stop/Turn/Tail
  • Optronics

4-9/16" x 2-1/2" Rectangle. Weatherproof, incandescent trailer tail light serves as a stop, turn, and tail light. Durable steel housing. Surface mount to trailer - hardware not included. 2-Wire design. (1) 2057 bulb.


Features:

  • Incandescent trailer light serves 3 functions
    • Stop, turn, and tail
  • Weatherproof housing and lens unit
  • Incandescent bulb is easy to replace
  • Shock-proof socket protects bulb against damage
  • Durable steel housing and polycarbonate lens
  • Red lens over incandescent bulb
  • Compatible with 12V DC systems
  • Surface mount to trailer - hardware not included
  • 2-Wire design includes power lead and ground wire


Specs:

  • Dimensions: 4-9/16" long x 2-1/2" tall x 1-3/4" thick
  • Distance between mounting holes (center on center): 3-1/2"
  • Bulb type: 2057
  • Power draw at 12.8V:
    • Stop/turn: 2.3 amps
    • Tail: 0.9 amps
  • 3-Year warranty


Manufacturer Cross Reference
Light will work as an exact replacement for:
Grote # 53132
Peterson # M306R
Bargman # 40-15-001


Optronics ST31 Series Weatherproof Surface Mount Light Dimensions

ST31RB Optronics Trailer Tail Light - Weatherproof - Stop, Turn, Tail - Incandescent - Rectangle - Steel Housing - Red Lens

Alternate part number: ST-31RB




California residents: click here



Customer Reviews

Optronics Trailer Tail Light - Weatherproof - Stop, Turn, Tail - Incandescent - Red Lens - ST31RB

Average Customer Rating:  4.9 out of 5 stars   (39 Customer Reviews)

4-9/16" x 2-1/2" Rectangle. Weatherproof, incandescent trailer tail light serves as a stop, turn, and tail light. Durable steel housing. Surface mount to trailer - hardware not included. 2-Wire design. (1) 2057 bulb.

by:

Needed a couple replacement lenses for my Escapade trailer. Was able to get the red but not the amber. These lenses are becoming obsolete, so I will switch to L.E.D. at some point soon.



by:

I added an aftermarket tour pack on my 2006 police bike and theese are Just the look I was going for to match the existing tail light.



by:

Does what I need it to do.



by:

Just received these lights, I will be replacing the two rear corner clearance lights in the rear of my fifth wheel with these. They will be a perfect replacement as I now will be able to have stop/turn/four way emergency and marker lights all in one at the top of my fifth wheel. This will provide a better signal to those who are behind me even if there’s a long line of traffic and cars close to me who may be blocking view from other vehicles. I have seen large trucks with this upgrade and some high end RV’s as well. It will provide a grater level of safety indeed. When I called etrailer and explained what I wanted to do, they knew exactly what I needed. I have not installed them yet because I just received them today and I will be waiting until I get home to do this modification. This is exactly what I was looking for. Highly recommended people who are on the road a lot with a large RV to make this simple upgrade. All tall vehicles should have this as a standard DOT requirement; I just don’t understand why it has not become a requirement for public safety concerns.



by:

This was the only light I could find with which to construct some lights to mount on my snowmobile trailer. I fabricated mounts and these lights were exactly the right size and shape. They've performed flawlessly. Many thanks!



by:

as my car is newer and has seperate brake and turn lights , I had to modify the trailer lights . these separate brake lights did the job nicly they are slim so they casn fit to the outside of my running light/turn lights. , they are well made with metal backing plate.



by:

Was an exact replacement for a trailer light. It fit without having to drill or tap new mounting locations. Has performed well all year long. Was glad I did not have to change styles or type of light.



by:

Good and reasonable priced product for my installation Arrived on time and good follow up Thanks

Rob

6/9/2018

Great for what I wanted them for!



by:

Perfect OEM Fit! Great price, great selection & service and fast shipping. Beats waiting in line a farm supply store.



by:

I was replacing two of four trailer tail lamps so glad to be able to get exact match to others. This is for incandescent bulb but that's what I wanted because I already have a LED replacement bulb for it.



by:

Very fast response with order. Way beyond my expectations in matching description of light I needed, and at a great price. Although the attachment was different, it visually and functionally matched one I installed on a light bar made 25+ Years ago. The only source I could find!



by:

These were exactly what I needed to replace the originals on my old trailer, those had wires and light sockets coming apart after a lot of years of dependable use. These lights arrived quickly and were an exact fit too.



by:

These were the only choice for tail lights for the sled trailer that I am redoing. Of all the tail lights on this website, these were the only size that would fit in the needed location.



by:

This light was a direct replacement on an old trailer and worked exactly as expected. Good Price and good service as well.



by:

Exact replacement, no issues



by:

I PURCHASED THESE LIGHTS TO INSTAL THEM ON MY MOTORCYCLE SADDLEBAGS....THIS WILL ALOW ME TO HAVE
THREE LIGHTS INSTEAD OF ONE IN THE CENTER....FOR RUNNING AND STOP LIGHTS. THEY WERE VERY EASY TO INSTALL, AND THEY ARE BRIGHT. SORRY, I HAV'NT HAD A CHANCE TO TAKE PICTURES YET.



by:

Exact replacement for what I was looking for. Excellent product.



by:

Bought a pair of these both are just as they described great quality would buy again very good product and company to work with very satisfied



by:

Just the size I was looking for. Putting them on my pull behind motorcycle trailer.



by:

New lights mounting on my trailer



by:

Nice replacement for my atv. Much cheaper than a stock light



by:

Made the old trailer look new again



by:

Great customer service. A special thanks to Natalie, who spent a good deal of time on the phone with me. Natalie was able to pinpoint an item I was having a difficult time finding (due to space limitations). Natalie provided me a single page with many item choices with specifications listed for each item, at a glance. :-)
Thanks, Michael



by:

Exactly the right size needed at the right price. Fit perfectly into the existing openings on my Kawasaki Bayou 250. More visibility from these units than the original.



by:

Lights were just what I needed. Good se rvice.


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39
Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Can a Trailer Clearance Light be Used as a Motorcycle Tail Light
    The issue is that trailers have a separate circuit that just does running lights which is what this clearance light, # 425800, would tie into. It only has that one function so it only has the 1 wire. A motorcycle generally has a bulb that will function as a brake light and as running lights with the turn signals being separate. You could potentially attach the one power wire on the light to both circuits on the motorcycle however the bulbs only have one function so they would not get...
    view full answer...
  • How to Wire 3 Function Tail Light Connection
    The signal/brake light wire should be spliced to the brighter element usually the lower one powered by the red wire. The dimmer element is for the running lights which is usually the upper element powered by the black wire.
    view full answer...
  • Changing Trailer Single-Wire Running Lights to Stop/Tail/Turn Lights
    You need to replace the light with one that is a 3-function for stop, tail, and turn functions. The light needs another wire to connect to the stop and turn signal functions like part # ST31RB has. Since yours only has one wire it grounds through the mounting hardware. The turn and brake lights are on one circuit so you just need a light with one more wire to add that circuit.
    view full answer...
  • How to Determine Fitment of the Optronics Tail Light part # ST31RB
    The Optronics Tail Light part # ST31RB is 4-9/16" Long x 2-1/2" Wide x 1-3/4" Deep. It has 4 mounting holes that are spaced 3-1/2" apart left to right and 1-1/2" apart top to bottom. You will need to measure your existing tail light in order to determine if this light will work for you as we do not carry direct OEM replacement lights for trailers. I have attached a review video of the light as well.
    view full answer...
  • Wire Functions of Trailer Stop, Turn and Tail Light ST-31RB and Causes of a Dim Light
    It sounds like there is a ground problem and that is what is causing the light to be dim or otherwise not function correctly. 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...
    view full answer...
  • Recommended 2-1/2 Wide Tail Lights To Add To Bike Rack
    I have an option for you, but we do not have any 2-1/2" wide tail lights that will work with separate brake and turn signal wiring. Your best bet is etrailer LED Light Kit # 98174LED that is 6-1/2" long x 2-1/2 wide and two mounting brackets # BK70BB. You will then be able to mount the brackets to your bike rack as you see fit, and install the lights. The harnesses included with the # 98174LED will plug into the lights, then each other, and give you a 4-way connector to plug directly...
    view full answer...
  • Replacement Brake Light Needed for a 2007 Quicksilver Travel Trailer
    I am not sure what exact tail lights you have on your 2007 Quicksilver but the Optronics part # ST31RB looks a lot like the one in your picture. This light measures 4-9/16" L x 2-1/2" W x 1-3/4" D which you can see in the accompanying photo. If this doesn't match up please let me know what your dimensions are and I can see if we have one that is close to what you have.
    view full answer...
    Image 1 for Image 2 for
  • Small Rectangle Trailer Light that Can do Stop/Turn/Tail
    The closest light we offer in the dimensions you seek that can do stop/tail/turn is the part # ST31RB which is 4-1/2 inches by 2-1/2 inches. It grounds through the mounting hardware, that is why it only has 2 wires.
    view full answer...
  • LED Lighting Options for a Honda Trailer With Incandescent Surface Mount Lights
    I checked all of the lights that we have available at this time and there are two lights that may work for you. The Tall Rectangle Submersible LED Trailer Tail Light, 6-Function, 3 Wire, 18 Diode, Right Hand, item # STL56RB, or the 7 inch Round Transit LED Stop and Tail Light, 31 Diode - Red, item # STL90RB, are the only surface mount LED lights that we carry that might work for your application. They are quite a bit larger than the existing lights you have on the trailer now. If the...
    view full answer...
  • Can Peterson 306-25 Tail Lights Be Converted To LED?
    Your tail lights are the Peterson 306-25 series lights which are similar to the Optronics Trailer Tail Light # ST31RB and use the same size 2057 bulb. You may be able to find a replacement LED bulb for this at a local automotive parts store. Otherwise the LED Trailer Tail Light # STL56RB is going to be the closest size we have to your lights which use a LED light. These lights are 6-1/16" long by 3-5/8" tall and will have a similar 3 wire connection.
    view full answer...
  • Submersible/ Boat Trailer Incandescent Light Recommendation
    The Optronics Trailer Tail Light # ST31RB is considered to be a weatherproof light, which means it can withstand the occasional rain shower, and according to my contact at Optronics, it is in fact submersible. That being said, I took a look at the light and wasn't able to really notice any type of seal surrounding the bulb, so I believe we have far better options for you. If your boat trailer is less than 80 inches wide, a similarly priced gasket sealed and waterproof incandescent light...
    view full answer...
  • Amber Clearance Trailer Light to Match Optronics # ST31RB
    We don't carry an amber light that's the exact as the # ST31RB but one that is quite close is # MC32AB. Another option is to replace the lens with # A30AB which is the amber lens that fits the # ST31RB.
    view full answer...

Do you have a question about this Trailer Light?


Info for this part was:

Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Laura H
Updated by:
Laura H
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M

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