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When you just need a light that works and installs without fuss, this one gets the job done. Measuring 2-3/4" wide by 2-1/8" tall and 1" thick, it’s a compact incandescent light that functions as either a clearance light or side marker light when mounted properly. The built-in reflex reflector means you don’t have to add a separate one to meet visibility needs. It uses a single 194 bulb that can be easily replaced whenever needed, keeping things simple and practical.
No complicated wiring here—this light uses a single wire for power and grounds through the mounting hardware. That makes installation quick, especially for replacements on existing setups. The stud mount setup keeps it secure and easy to attach, saving time when swapping out older lights or adding new ones.
Built with a tough ABS housing and screw-on lens, this light holds up well to regular use without cracking or fogging easily. The screw-on design also makes bulb changes straightforward—no sealed unit to throw away, just open it up and replace the 194 bulb. Simple construction that’s built to last through years of use.
This P2-rated light throws a 45-degree beam to each side of its centerline for a total of 90 degrees of coverage. It’s designed to be seen straight on but not from extreme side angles, which makes it perfect for use as either a clearance light or side marker light—but not both at once. If you need both functions, just pair two lights for full coverage and compliance.
If you’re replacing an old fixture, this one lines up perfectly with several common lights. It works as an exact replacement for Uni Bond #MR2020A, Wesbar #3101, and Peterson #114A models. With the same size and matching bolt pattern, it fits right in without drilling new holes or running extra wires.
Customer Satisfaction Score:
100% were satisfied with this product
0% of customers were not satisfied
Ratings & Reviews
Great service and quality product.. Very happy
The Side Marker Light with Reflector - Amber- MC36AB was exactly what I needed and arrived exactly when needed. Thank you. Perfect!
The Product was as Advertised. It was just what I needed for my Flatbed Trailer.
The service on this order was GREAT. Thank You!
Great Follow-up and informative.
Had the trailer re-wired with the new lights. Works great!
Nice fit and it was a great replacement for a broken fixture on my trailer. Incredibly fast and accurate shipping and service. Thank you.
Received the order as promised and although I sold the tow dolly before I received them or had a chance to use them they look of great quality and I'll no doubt use them in the future.
I really like etrailer and thj information they provide.
Thank you!
The only lights that will fit on our trailer. Glad you have them in stock!
They work. Used to replace broken side lights on old equipment trailer.
Replacement clearance light for my snowmobile trailer...exactly what I wanted. The eTrailer website was very helpful with great photo's and descriptions. Very easy to order. Thank you.
This side marker light was an exact match to the one that had been damaged on my 16 ft. California trailer, for a great price, and fare shipping!!
Outstanding ServicePurchased two side marker lights and a triple tail light for a utility/atv trailer. The price was outstanding for all three products and the service from etrailer.com was outstanding. I ordered the lights on Sunday night and received the shipment on Wednesday afternoon. I would definitely purchase from etrailer.com again.
I was looking for replacement lights for a used jetski trailer i bought.
I found exact replacement LED's.
The email updates were extremely nice and the shipping was super fast.
I will be ordering again from this company.
Matched a 15 year old trailer light that got smashed. Threaded stud on back, just turn assembly in to mount and wire up.
The part was exactly what I needed. Part was not damaged during shipping.
Maurreen
6/16/2022
I purchased a lens cover for a light on our trailer. Works great!
Exactly what I needed! Fast shipping and I would recommend them.
Caryl
11/4/2021
Still working, no problems!
Inexpensive replacement for Peterson. Not quite identical in that the mounting bolt is slightly different but this makes no difference. Metric instead of SAE. I had no problem mounting it. My only problem was the post office and not etrailer. I got excellent service from etrailer, quick response to my emails. Great price. eTrailer is a company that understands how to give service with the sale. No, I am not an employee or getting a discount.
This was an exact replacement size and installatio wise. Wish the description had indicated that it included the bulb as well as I ordered two lamps that I will probably never use. As it shows, there was a small section of wiring for a connection that was different from the plug in connection on my original light that made the installation slightly longer as I had to find a couple of crimp connectors to make the connection. Otherwise great replacement.
Quick and easy to work with, on or off the web
I haven't used the lights yet but you can't go wrong for the price. Etrailer is an asset to the online shopping community. No complaints here.
Adam
6/21/2020
I bought 10 or 12 of these. I have no complaints about any of them that I put on any of the trailers that I am responsible for taking care of.
The price was right and the sales person picked the right style for that sh*t trailer I was impressed
I had a damaged side marker light on my trailer. Went to etrailer.com and found exactly what I was looking for in less than a minute.
The ordering process was quick and easy, and parts were delivered quickly. Just got done replacing the lights without any issues and everything works great.
I would definitely recommend etrailer.com.
Stefan H.
1/2/2018
Working out great
Appear to be of excellent design and quality. This was a direct drop-in replacement for an existing light that got smashed in an accident. The one-wire hookup is really nice (grounds through the mount). Just make sure you have decently clean metal where the washer/nut clamp down. Can't comment on long-term durability, but based on initial impression and short term use, it seems that it will stand the test of time!
Daniel
11/12/2020
Been a year...still working great! Very happy with this.
I’m never sure when I order things online that I’m going to get what I wanted. I’m surprised and pleased that they fit the lights on my trailer just like the original ones. Now I know where I can get parts that I can count on.
Excellent customer service abd quick delivery. Wish all companies operated like yall!
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Bruce
11/11/2023
After a year, they are still working - just wish people would quit running into them with their tractor tires!