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Replacement Side Marker Lens for ST2RB, STL2RB, ST3RB, STL3RB, ST4RB and ST5RB

Replacement Side Marker Lens for ST2RB, STL2RB, ST3RB, STL3RB, ST4RB and ST5RB

Item # A2RB
Our Price: $7.16
Accessories and Parts
Shipping Weight: 0.06 lbs
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Replacement Side Marker Lens for ST2RB, STL2RB, ST3RB, STL3RB, ST4RB and ST5RB 2-3/4 Inch Long A2RB
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  • Reviews (647)
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Optronics Accessories and Parts - A2RB

  • Trailer Lights
  • Light Lenses
  • Rectangle
  • Optronics
  • 2 Inch Wide
  • Red
  • 2-3/4 Inch Long

Replacement Lens by Optronics, Inc.

Replacement side marker lens for STL2, STL3, STL4 and STL5 Series.

  • Measures: 2-3/4" long x 2" wide x 1-1/4" deep
  • Measures 2-5/16" on bolt hole centers
  • Hardware not included

A2RB Replacement Lens by Optronics, Inc.

Alternate part number: A-2RB

California residents: click here

Video of Replacement Side Marker Lens for ST2RB, STL2RB, ST3RB, STL3RB, ST4RB and ST5RB

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Optronics Replacement Side Marker Lens For STL2 STL3 STL4 STL5 Series - A2RB

Hi, everybody. Andy here with And today, we're gonna take a brief look at this replacement side marker lens. Now, this replacement side marker lens is going to work for the STL2, STL3, STL4, and STL5 series. And let me get out my ruler here and just give you some measurements. The overall length of this cover is going to be sitting right at 2 3/4 inches long.

And the width, we're gonna be sitting right at 2 inches wide. And the depth, we're gonna be sitting right at an inch and a quarter. And then measuring those bolt holes center to center, let me line that up, we're sitting right at 2 3/8 inches, center to center. Now, it is important to note that the hardware is not included. But if you have one of those series of lights that I have mentioned previously by those model numbers, then this will work for you as a replacement.

Well, that's gonna conclude our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me..

Customer Satisfaction Score:

Customer Reviews

Replacement Side Marker Lens for ST2RB, STL2RB, ST3RB, STL3RB, ST4RB and ST5RB - A2RB

Average Customer Rating:  4.9 out of 5 stars   (647 Customer Reviews)


Able to get side marker lens without buying complete tail light assembly.

Quick delivery.


Exactly what I needed. busted the original lens after backing my trailer into a tree. Couldn't find this item locally. This part arrived quickly and fit perfectly, I just opened the package and bolted it on.


Perfect and fast shipping etrailer is my go to place



Been working well


This purchase relates to auto hauler trailer I had built which I brought home in the dark and immediately backed it into a tree breaking the trailer light lens. I had been trying to replace that lens for over six months the trailer manufacturer’s sales location was of no use. Attempts to contact the headquarters thru their website fell on deaf ears. Trying to find the lens with the dimension clearly understandable on Amazon or web search did not leave me with any comfort I would be getting the proper lens UNTIL I arrived at The size reference and description gave me confidence that I would be getting the correct lens. After pushing the enter button the have followed up re: order and shipment process in an intrusive way. The part has arrived and fits perfectly. I could not be happier with the product and the feeling that my business is appreciated. By the way did I mention this was just a $5.50 purchase.
Rick S



still there still performing fine stays away from trees


My daughter knocked the trailer light lens off. I Googled the number on the broken lens and found I ordered a new one and had it in about a week. Could not have been easier and the cost was reasonable. Thanks folks.


Just the part I needed couldn’t find it anywhere else. No local stores carry it fast delivery will use you guys again had to replace the rear lands on my trailer when it broke backing it up again thanks for the quick service.


It was perfect the right size and fit like new It was for a trailer light that the side lens got broken The dealer would only sell the whole light. I found your website and got everything I needed and the price was awesome


Exactly what we were looking for! Both back marker lens caps were cracked and I couldn’t find these anywhere else. Good price, fast shipping. Pleasant experience as always with etrailer!



Working out great, etrailer is one of the only places that carry’s this specific marker lens.


The lens covers came in today and they fit perfectly.


I just wanted to say thank you for lighting the way again. Great price and fantastic delivery service. Replaced broken lenses and a little touch up looking new again.
Definitely will be buying in the near future.



Fantastic no complaints here


Easy ordering, great pricing, and quick delivery! If we need anything else we will use this website!


Have purchased from numerous times and always receive what I ordered and fast. Will continue to do business in the future.


Was exactly what I needed


This was the exact replacement for my trailer light. The order processing and shipping was fast.


Fit my trailer light damaged while working on complex, easily installed, fit correct,did the job needed


Exactly what I needed, grt prices and quick delivery
Would purchase from etrailer again


Matched what we had, fit perfect! Fast shipping and a perfect transaction. Would buy from this company in a heartbeat again! Thank you!


Quick delivery. Excellent condition!


Fits my trailer perfectly. Cheers


The light cover is the same as the original light cover thank you


Worked perfectly without the need to purchase the entire light


Still in great condition after a year of being outside, and works well.



Still looks like new. The plastic is bright and has done well in our harsh weather environment.

Etrailer Expert

Mike L.


@Elisabeth Thank you, we're glad the # A2RB replacement lens is working well for you!


Quick response and delivery. Customer service provides you with a installation video. Nice touch.


Item arrived very quickly and fit perfectly. It replaced a broken lens on a utility trailer. Would definitely use again for my replacement trailer part needs. Thank you.


Great replacement. Too bad about usps sending from Missouri to Salt lake then back to southern Colorado but their efficiency is not the point here but cost a couple of days.

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