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Review of Optronics Replacement Snap Ring - A40SRB Video

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Info for this part was:

Employee Steven C
Installed by:
Steven C

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Products Featured in this Video


Replacement Snap Ring for 4-1/2" Round, Flange Mount Trailer Tail Lights


Optronics Accessories and Parts

17 reviews


Code: A40SRB

Retail: $5.98

Price:  $2.10
  • Accessories and Parts
  • Trailer Lights
  • Mounting Hardware
  • 4-1/2 Inch Diameter
  • Brackets
  • Optronics



This retention ring helps secure your Optronics 4" and 4-1/2" round flange mount trailer lights into housing. Snap-on mounting fits ST40 series lights.


Do you have a question about part A40SRB?more information >     


Optronics Replacement Snap Ring - A40SRB Review


Hello, everybody. Steven here with etrailer.com. Let's take a look together at a replacement snap ring for your four-and-a-half-inch round flange mount trailer taillights. Now folks, this retention ring does help secure those four-inch and four-and-a-half-inch round flange mount trailer lights biotronics into their housing. Specifically, it fits Optronix ST40 series lights. Now those… see more >