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Replacement Tail Light Lens for Round Transit Stop and Tail Light - Red

Replacement Tail Light Lens for Round Transit Stop and Tail Light - Red

Item # A90RB
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Replaces the red lens for your ST90 Series stop and tail light (ST90RB). Call 800-298-8924 to order Optronics accessories and parts part number A90RB or order online at etrailer.com. Free expert support on all Optronics products. Guaranteed Lowest Price and Fastest Shipping for Replacement Tail Light Lens for Round Transit Stop and Tail Light - Red. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (14)
  • Q & A (5)
  • Videos (1)
  • Photos
  • Why etrailer?

Optronics Accessories and Parts - A90RB

  • Trailer Lights
  • Light Lenses
  • Optronics
  • Round
  • Red

Replaces the red lens for your ST90 Series stop and tail light (ST90RB).


  • Replaces the red lens for your ST90 Series stop and tail light (ST90RB)
  • Lens diameter: 7-1/8"
  • Quantity: 1 lens

A90RB Replacement Lens - Red by Optronics, Inc.

Alternate part number: A-90RB

California residents: click here

Video of Replacement Tail Light Lens for Round Transit Stop and Tail Light - Red

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

Video Transcript for Optronics Trailer Lights A90RB Review

Today we're going to be taking a look at a replacement tail light lens. This replaces the red lens for your ST90 series stop and tail lights. Part number ST90RB is the one on our website that this is an exact replacement for. The lens diameter . Measuring edge to edge of the unit, it's going to give us a measurement of about 7-1/8". You're going to get one lens with this part number. It's made from a durable acrylic construction.

The lens is SAE and Department of Transportation compliant. To replace your lens, you will need to remove the old lens by removing all the screws that hold it in place. Then position your new lens and simply secure it by reinstalling the hardware. New hardware is not included, so you'll need to provide your own or use your existing hardware. That's going to do it for today's look at the replacement tail light lens.

Customer Reviews

Replacement Tail Light Lens for Round Transit Stop and Tail Light - Red - A90RB

Average Customer Rating:  4.9 out of 5 stars   (14 Customer Reviews)

Replaces the red lens for your ST90 Series stop and tail light (ST90RB).

- A90RB

Good high quality lens cover. Also came quickly 475872

- A90RB

Great product to replace original which are not re-popped ........63 Aladdin Magic Lamp 15ft travel trailer 831330

- A90RB

These replaced the worn, damaged lights on my 1972 mobile home. Look awesome. 816421

- A90RB

Fit perfectly on my bus and look nicer than the old ones 805783

- A90RB

Perfect fit for a 1980 Fruit Growers Express built Caboose! LOL I’ll bet this is the first and only one of these you have gotten a review from! 661325

- A90RB

very happy got my lights faster than they said i would made well thick like the originals good price i used the cheap shipping and was pleased over all pleased 502704

- A90RB

can't wait to put on our 1971 wigwam trailer. thank you 492548

- A90RB

Great piece at a get at price ,reasonable shipping and fast shipping 422671

- A90RB

Restoring a 70's trailer for a guesthouse on my place, didn't know I'd find anything to replace the old taillights I'd glued together a million times, the last storm took them out..was very pleased to get these! Great price, thanks, have bookmarked your page. 332714

Thank you! Still going strong! Thanks for following up, and Happy 2018!
Johnette - 01/15/2018


- A90RB

Good price and very good service products shipped in a timely manner...with UPS received in two working days...one of the FEW places that have (in stock) 7 inch flush mount stop/tail lights..really helpful people 289573

- A90RB

Just as described packed very well items arrived in perfect condition 209208

- A90RB

Bus tail light lenses were well packed and received in excellent condition and in a timely manner.... Thanks 175179

- A90RB

Love it thanks 131192

- A90RB

Fit perfectly! Wish it would have come with screws though! 89100


Ask the Experts about this Optronics Accessories and Parts

  • Diameter of Lens A90RB
    The lens diameter of part # A90RB is 7-1/8 inches. It is meant to fit part # ST90RB lights.
    view full answer...
  • Does Optronics Tail Light Lens A90RB Include a Clear Portion for a License Plate Light
    This lens is meant to be used as a replacement to the Optronics tail light, part # ST90RB. It does not have a clear portion for a license plate light. You are looking for a light like Optronics part # ST9RB or part # STL9RB. You could also use Optronics part # ST17RB. I have linked to these parts below.
    view full answer...
  • Solution for Older Trailer with Broken Taillight Lens
    Easiest solution would be to replace your entire light assembly as I would have to see a picture of the light/lens to see if we have it. Based on your description I would have no idea on whether or not we carry it. Due to the age of your trailer I would suspect we do not carry the lens if it was original equipment. If this is the case the best option I could make would be to replace the entire assembly with a light from the link I attached.
    view full answer...
  • Will the Optronics Round Transit Stop and Tail Light A90RB Fit a Weldon 1010 Taillight
    The Replacement Tail Light Lens for Round Transit Stop and Tail Light part # A90RB is designed for the Optronics Transit Light part # ST90RB therefore I cannot confirm it will work on your Weldon 1010 Taillight. They do have the same diameter so it may work in its place but otherwise you would have to replace the entire light assembly in which case this will be your best option for this.
    view full answer...
  • Availability of 7 Inch Tail Light Lenses For 1972 Boler Trailer
    I have the Optronics Red Replacement Tail Light Lens for ST90RB, part # A90RB, which is a 7-1/8 inch round red lens. It is a replacement lens that fits the Optronics ST90 Series Lights. The Optronics Red Replacement Tail Light Lens for ST51RB and ST52RB, part # A52RB, that you have referenced is a 4-5/16 inch round red lens. It is a replacement lens that fits the Optronics ST51 and ST52 Series Lights.
    view full answer...

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Info for this part was:

Expert Research:
Patrick B
Expert Research:
Jameson C
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Brian T
Updated by:
Noah M

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