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Optronics Trailer Clearance and Side Marker Light - Submersible - Incandescent - Round - Amber Lens

Optronics Trailer Clearance and Side Marker Light - Submersible - Incandescent - Round - Amber Lens

Item # MC53AB
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MC53AB - Round Optronics Trailer Lights
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2" Diameter round. Waterproof, incandescent trailer light serves as a clearance or side marker light when properly mounted. Durable polycarbonate housing. Recessed mount with grommet (sold separately). Accepts standard 2-prong plug. PC rated. Lowest Prices for the best trailer lights from Optronics. Optronics Trailer Clearance and Side Marker Light - Submersible - Incandescent - Round - Amber Lens part number MC53AB can be ordered online at or call 800-298-1624 for expert service.
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  • Reviews (152)
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Optronics Trailer Lights - MC53AB

  • Clearance Lights
  • Round
  • Incandescent Light
  • Amber
  • 2 Inch Diameter
  • Recessed Mount
  • Rear Clearance
  • Side Marker
  • Submersible Lights
  • Optronics

2" Diameter round. Waterproof, incandescent trailer light serves as a clearance or side marker light when properly mounted. Durable polycarbonate housing. Recessed mount with grommet (sold separately). Accepts standard 2-prong plug. PC rated.


  • Round trailer light functions as either a side marker or clearance light when properly mounted
  • Sonically sealed, waterproof housing and lens unit is submersible
  • Incandescent bulb can be easily replaced
  • Durable polycarbonate housing and lens
  • Amber snap-on lens over incandescent bulb
  • Compatible with 12V DC electrical systems
  • Recessed mount with grommet (A54GB - sold separately)
  • Accepts industry standard 2-prong plug (A46PB or A86PB - sold separately)
  • DOT compliant
  • PC rated


  • Dimensions: 2" diameter x 11/16" thick
  • Bulb type: incandescent
  • Power draw at 12.8V: 0.2 amps
  • 3-Year warranty

Manufacturer Cross Reference

  • Light will work as an exact replacement for:
    • Uni Bond # SE2000A
    • Wesbar # 203220
    • Truck Lite # 30200Y
    • Grote # 45823
    • Peterson # 146A
    • Bargman # 40-30-002

Optronics MC53 Series Amber Marker Clearance Light Dimensions

Sonically Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and side marker light.

MC53AB Optronics Trailer Clearance and Side Marker Light - Submersible - Incandescent - Round - Amber Lens - PC Rated

Alternate part number:MC-53AB

California residents: click here

Customer Reviews

Optronics Trailer Clearance and Side Marker Light - Submersible - Incandescent - Round - Amber Lens - MC53AB

Average Customer Rating:  4.9 out of 5 stars   (152 Customer Reviews)

2" Diameter round. Waterproof, incandescent trailer light serves as a clearance or side marker light when properly mounted. Durable polycarbonate housing. Recessed mount with grommet (sold separately). Accepts standard 2-prong plug. PC rated.

- MC53AB


- MC53AB

Exactly what I ordered and great service. They resolved an issue with a back order part and took great care of us!

- MC53AB

I ordered these running lights to replace the originals on the 1997 boat trailer that I purchased used. One of the original lights (?), although "sealed" / "submersible", actually failed when submersed. I don't know how long the original lasted, but I know that the previous owner stored the boat outside and the freeze/thaw cycle could have caused the failure. Before I installed the new one, I added a small bead of silicon sealant as a "backup" to the factory sonic sealing. Hopefully I'll be able to upgrade this rating in a few years.

- MC53AB

This was an easy installation and has worked perfectly for the first year. Good value product.

- MC53AB

Great product! Appears to be excellent quality!

- MC53AB

Website is well laid out and provides extensive information to ensure you are making correct selection for your trailer. Staff kept me informed of progress on the order. The order was shipped in timely manner and contained the correct parts. Great experience!

- MC53AB

Exactly what i needed! So glad I found etrailer. Not that I mind using dealers and repair shops on occasion, but I also prefer to save money on those projects that i can take on myself. The clearance lights were a perfect replacement and a quality product. Fast shipping was appreciated!

- MC53AB

We use these lights in our electrical diagnosis simulator. The lights work perfectly!

- MC53AB

Works great and bright! Terminals were covered with a protective piece of tape and had some terminal grease in them and all ready to go. Thank you etrailer!

Still working great one year later
Kevin - 04/25/2020

- MC53AB

I was online looking for a source for 2 in round push in lights for flatbed on my truck. I came across etrailer and I found what I needed and pricing was super low and got a quality light as well. They shipped them promptly and received them within 1 day because of choice of 1 day shipping . I will be back for more stuff for my 3 trailers I own . Good job guys and gals. Thanks.

Perfect, still working great
patrick - 08/02/2016

- MC53AB

Ordered bulbs for a CM Truck bed. Once again Perfect fit.

- MC53AB

In total, I purchased electric tongue jack, double roller for rear ramp door, vent cover, new backing plates (four) complete with electric brakes, new hubs and bearings. This time wheel covers for two trailers and some lights for quad trailer. I am very pleased with everyone involved with purchases and products. I would recommend etrailer to anyone and have already done so to some friends!! Thanks!!!

- MC53AB

I have a new POLARIS aluminum trailer. I broke a side light lens cover. The dealer could not supply me a replacement. I found the exact lens at The lens is an exact match and the service was very fast. The etrailer rep I talked to was very helpful and courteous.

- MC53AB

couldn't be better- Thanks!

- MC53AB

I had to order this Round Trailer Clearance and Side Marker Light because the replacement provided by the trailer manufacturer did not work. This light was a perfect replacement for the original. And I received it from ETrailer earlier than I expected. I will continue to shop with ETrailer for all my trailer needs.

- MC53AB

Exact replacement of original equipment. Ordering process smooth and quick. Arrived in good condition in spite of USPS and other carrier's handling of package.

- MC53AB

I priced the same items around here and I could buy three light with shipping from for less than the cost of one light in the stores here. I also like the pictures of the items which helps you order the right product and the ease of scrolling through the website to find the correct light. Your lamps were OEM lighting that came with my trailer.

- MC53AB

Item great, as advertised! Quick Shippi ng!

- MC53AB

I was very pleased with the products available on your website. The site was very easy to find what I needed and I was able to order and have delivered in a reasonable time. All the places where I live told me either they couldn't find or it would take weeks to get and cost a lot of money. Thanks and I will definitely be shopping at again in the future.

- MC53AB

Perfect fit for my boat trailer. I looked all over for these lights. And your price was great as well. Thanks I will shop with etrailer for now on. Rod

- MC53AB

All the lights that I bought were the right fit as advertised and work. I purchased more that I needed because of damage that occurs. I am trusting that the spares will be just as good. Thank you for a good product and ease of ordering and site navigation.

- MC53AB

I just bought a 2006 goose neck trailer that needed some minor repair. Wanted to match existing good parts. These lights were exact in every way.

- MC53AB

I actually found everything I needed for lights and at a good price. Products were exactly as shown on the site. I will surely go to etrailer first for other products when I need them.

- MC53AB

Love these lights. Great price and easy to install yourself. Quick and easy order system. I love the entire process. I'm kept informed of my order, shipping, tracking and delivery. GREAT JOB!!!!

- MC53AB

Easy to install, works flawlessly

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Looking for Trailer Clearance/Marker Light to Replace Trucklite Model 10
    According to my research, I have found that the Trucklite model 10 clearance/side marker light measures 2-1/2 inches in diameter. Because the Optronics # MC53AB measures 2 inches in diameter, it would not be a good replacement. The Optronics # MC57AB, with its 2-1/2 inch diameter, would be the correct replacement. If you need a mounting grommet, it is available as part # A55GB. The two pin wiring pigtail is also available as part # A46PB.
    view full answer...
  • Flush Mount Grommet and Wiring Pigtail for 2 Inch Clearance and Side Marker Lights
    The Sealed, 2" Round Trailer Clearance and Side Marker Light, Flush Mount - Amber # MC53AB or the LED # MCL55AB will use the 2" Round Grommet - Flush Mount - Open Back # A54GB for installation. You will also require the wiring pigtail # A46PB which will give you 6 inches lead.
    view full answer...
  • What Is Hole Size For Mounting 2 Inch Round Trailer Lights With Rubber Grommet
    The item you selected, Sealed 2-1/2 Trailer Light, part # MC57AB, is a 2-1/2 inch light that will mount into a 3 inch hole using 2-1/2 inch grommet, part # A55GB. The hole size to mount a 2 inch round light flush mounted would be 2-5/16 inches. The grommet you would need for a 2 inch light would be 2 Inch Round Grommet, part # A54GB. If you are flush mounting your lights, the 2 inch light will sit inside the grommet. A 2 inch light similar to the one you selected is part # MC53AB. We...
    view full answer...
  • 2 and 4 Inch Diameter Trailer Lights, Grommets, and Harnesses
    I will be happy to help and give you some options. For 2 inch diameter red lights we have several options: # MC53RB (use grommet # A54GB and harness # A46PB) # MCL50RB (use grommet # A54GB and harness # A46PB) # MCL55RB (use grommet # A54GB and harness # A46PB) # MCL55R1224B (use grommet # A54GB and harness # A46PB) All in one option # MCL-50CRK # MCL155RB (use grommet # A54GB and harness # A46PB) For 2 inch diameter amber lights we also have several options: # MC53AB (use...
    view full answer...
  • Replacement Side Marker Light and Grommet for a Trucklite Brand Grommet and Marker Light
    I went out to the warehouse and pulled grommet # A54GB and light # MC53AB. I then assemble them and the result looks exactly like your picture. I then measured the amount the lens sticks up above the grommet and came up with just under half an inch. The lens could be pressed further in. I used digital calipers to take the measurement. I also made a video showing the assembled result for you. The light takes wiring harness # A46PB if you do not already have them on your trailer.
    view full answer...
    Image 1 for
  • Does Light # MCL50AB Use the Same Grommet as Light # MC53AB
    Yes, the Sealed Miro-Flex 2" Round LED Trailer Side Marker part # MCL50AB will fit in the same grommet as the Sealed 2" Round Trailer Clearance and Side Marker Light part # MC53AB as they are both exactly 2" diameter. The LED option however is 1-3/16" tall whereas the incandescent option is 11/16" tall but as you mentioned this should not be a problem. If you need a new grommet then you can use the 2" Round Grommet part # A54GB.
    view full answer...
  • Replacement Amber Trailer Light Options For Different Shape And Style
    For your replacement amber lens, we will have to go off of your style of light, color, and measurements. There are many lights that meet the standards you listed, but the measurement will help us with the replacement lens or replacement light you need. I've added a link to our page to assist you with finding the proper fit amber light/lens. We have various shapes and styles. You may be interested in Rectrangular LED lights, like the Rectangular LED Trailer Clearance and Side Marker...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Laura H
Updated by:
Laura H
Employee Brian T
Updated by:
Brian T
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Hayden R
Installed by:
Hayden R
Employee Chris R
Video by:
Chris R

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