Replacement Marker Light for OPT MCL40RB1
Updated 01/19/2026 | Published 08/13/2024
Question:
I have a marker light red for a trailer that has OPT MCL40RB1 011117 stamped on the back of the base of the light. Can you tell me which light I need to purchase as a direct replacement for this marker light? Thank you.
asked by: Chad R
0
Expert Reply:
Hi Chad; the LED Clearance or Side Marker Light with Reflector # MCL40RB is the replacement for your OPT MCL40RB1. This marker light will have the same 4" long x 1-1/2" tall x 15/16" thick dimensions you have now.
expert reply by:
Robin H
0
Product Page this Question was Asked From
LED Clearance or Side Marker Light with Reflector - Submersible - 2 Diodes - Rectangle - Red Lens
- Trailer Lights
- Clearance Lights
- Marker
- Rectangle
- Surface Mount
- LED Light
- 4L x 1-1/2W Inch
- Red
- Optronics
more information >
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Robin H.
1/19/2026
Hey Chad, how did the replacement marker light work out on your trailer? It’d be great to know if the fit and brightness matched your original light. Your update could make it easier for the next person with the same setup.