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Optronics Mini Trailer Clearance or Side Marker Light - Submersible - Incandescent - Red Lens
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Optronics

Optronics Mini Trailer Clearance or Side Marker Light - Submersible - Incandescent - Red Lens

Part Number: MC95RB
359 Reviews | 8 Questions
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$5.92
Retail:$15.40
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optronics trailer lights clearance 2-1/16l x 1-1/16w inch
optronics trailer lights submersible 2-1/16l x 1-1/16w inch mc95rb
optronics trailer lights clearance marker
optronics trailer lights clearance submersible mini or side marker light - incandescent red lens
optronics trailer lights marker submersible
optronics trailer lights clearance submersible mc95rb
optronics trailer lights clearance 2-1/16l x 1-1/16w inch mini or side marker light - submersible incandescent red lens
optronics trailer lights clearance marker mini or side light - submersible incandescent red lens
optronics trailer lights marker 2-1/16l x 1-1/16w inch mc95rb

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2-1/16" x 1-1/16" Rectangle. Waterproof, incandescent trailer light serves as a clearance or side marker light when properly mounted. Durable stainless steel base. Stud mount to trailer. 1-Wire design. P2 Rated. Great Prices for the best trailer lights from Optronics. Optronics Mini Trailer Clearance or Side Marker Light - Submersible - Incandescent - Red Lens part number MC95RB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - MC95RB

Highlights

  • Stays Lit When Submerged: Sonically sealed housing keeps water out for reliable use on boat or utility trailers.
  • Compact Fit in Tight Spots: 2-1/16" x 1-1/16" rectangular size works well where space is limited.
  • Simple Grounding Setup: Single-wire design grounds through the mounting stud for quick install.
  • Long-Lasting Durability: Stainless steel base resists corrosion and holds up to trailer vibration.
  • Clear, Legal Illumination: P2 rating provides a 90° beam for proper clearance or side marking.
  • Easy Bulb Replacement: Standard incandescent bulb can be swapped in seconds when needed.

Features to know about

Reliable Visibility That Stands Up to the Elements: Submersible, Sealed Design

Rain, road spray, or boat launches won’t bother this light. The housing and red lens are sonically sealed into one waterproof unit, keeping moisture out and the internals protected. Its submersible build means you can trust it in wet environments without worrying about shorting or corrosion.

Simple, Clean Mounting: Single-Wire, Stud-Mount Setup

This one-wire design grounds through the stainless steel mounting stud, so wiring stays simple and neat. Just bolt it on and connect power—no extra ground wire needed. The compact 2-1/16" long by 1-1/16" wide size fits tight spots easily, and the stainless steel base gives it a solid, durable feel once mounted.

Dependable Light Output: P2-Rated Incandescent Performance

Rated P2 for 90 degrees of beam coverage, this light provides strong visibility straight on. It can be used as either a clearance or side marker light when properly mounted. The incandescent bulb draws only 0.2 amps at 12.8V and can be replaced if needed, making upkeep simple over time.

Built for Long-Term Use: Durable Materials and Exact Fit

A stainless steel base resists rust and wear from harsh conditions, while the snap-on red lens keeps maintenance straightforward. It’s built to work as an exact replacement for Wesbar #3231/3239 or Peterson #M151R lights, so you know the fit will be right without modification.

Specs

Dimensions

  • Length: 2-1/16"
  • Width: 1-1/16"
  • Depth: 1"

Dimensional diagram of the Optronics MC95RB red rectangular trailer clearance or side marker light showing length, width, and depth measurements for installation reference.

Electrical

  • Bulb type: incandescent
  • Power draw at 12.8V: 0.2 amps

Warranty

  • Warranty length: 3-Year warranty

MC95RB Optronics Mini Trailer Clearance or Side Marker Light - Stainless Steel Base - Submersible - Incandescent - Red Lens - P2 Rated

Alternate part number: MC-95RB







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Ratings & Reviews

4.8

359 reviews
5 Stars
(308)
4 Stars
(36)
3 Stars
(6)
2 Stars
(2)
1 Star
(7)
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by:
I found it hard to find replacement one wire, self grounding lights for my 25 year old boat trailer. etrailer had the exact item I was looking for! Quick ship & excellent communication. I will definitely shop etrailer again!
by:
the optronic lights are great being a boat mechanic i have installed lots of tas
























i am a retired marine tech. over the years i have installed many trailer lights and these LED optronic lights are the best.the harbor freight are cheap and stop working soon after installation. these are top quality lights and they are sealed.
by:
Fit perfect easy to install nice and bright Perfect all around light.
by:
I hit the wrong star should be 4 stars, if the replacement light came with the connector matching the old wiring it would be 5 stars
by:
This marker light is what I needed. IT appears well sealed. Salt water will tell the tale in a year or so.
by:
The marker lights were not installed into metal so I had to run a separate ground wire attached to a ring terminal to the 1/4 post. Because of the three-quarter pine I had to get a Coupler and extend the post. I could not find ring terminals that would fit the post so I had to file out the center. Cool lights. I stayed consistent with incandescent so I would not have buy a converter for led.
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by:
This clearance light was an in kind replacement for one that was damaged on my boat trailer. It has held up flawlessly since it was installed.
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

10/2/2025

Woohoo! Love to hear it, Mark! What kind of boat do you have?

Mark S. profile picture

Mark S.

10/2/2025

@GwendolynY a 25' Flybridge Sportfisher. Big enough to get the job done, but not too big to tow.
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

10/3/2025

@MarkS That's a great boat!
by:
etrailer was fine to deal with , but shipping with the usps is horrible !!! it took two weeks from date ordered !
by:
Right light and quick shipping!
by:
The light is what it is but what most impressed me was the service and support provided by the etrailer staff. From start to finish, they were attentive and active in processing this order and providing information about it. Thank you.
by:
Good product. great service.
by:
Unfortunately the light didn’t work. The light did not have a separate ground wire so I couldn’t use it.
I found a clearance light at a local dealer.
Thank you for checking about the purchase.
Paul Pladson
by:
Item was shipped quickly and works as well as the original. I would have liked to find this in an LED but I needed it for the one bolt and one wire to match my existing setup.
by:
Great light.
by:
Worked as indicated in lising. I ordered the wrong one, though, I needed one with three bulbs so ordered that one from etrailer.com, also. It's PERFECT! Will keep etrailer in my bookmarks and use for any other future trailering needs.
by:
Found what I wanted at a great price. Shipping was fast
by:
These were purchased for an 18’ boat trailer and were used for the three lights in the middle. We bought them because they were cheap and would match the rest of the lights on the trailer.
Charlie profile picture

Charlie

7/4/2019

I am still happy with this purchase and would recommend it to future buyers.

by:
Great price good communication quick delivery
by:
In looking for a replacment light, etrailer had the easiest look-up and I looked at 5 or more other sites !! They had the exact replacement I was looking for Thank you etrailer for doing an excellent job
Wis M. profile picture

Wis M.

3/18/2015

Still working GREAT

by:
All was swell
by:
This is the perfect replacement light for my boat trailer. This is the first time I made a puchase from eTrailer.com. Their selection is extensive and at a nice price. For a notice it was easy for me to use their site to find the replacement lights I needed. It was received in less than 5 days at my doorstep and everything I ordered was there. All the tips and installation videos are invaluable to me. This is much more than a great place to purchase lights, it's a DIY'ers learning site.
by:
Product received is just what we ordered. Estimated delivery date was not met, but we were kept updated via the tracking system so we knew what to expect.
by:
This is a replacement for Wesbar on my boat trailer. A suitable replacement except the mounting stud was a little short barely having enough length to attach the ground wire, locking washer and nut. Also—It’s also metric. Everything else on the trailer is standard.
by:
Exactly what I needed with fast shipping, thanks!
David profile picture

David

2/15/2024

A year later the lights are still working great, thanks!

by:
Didn’t know your company but you did the best job possible, thanks!!!
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