Arrives before Christmas 
2-7/8" L x 2-1/8" W x 15/16" D; PC-rated; reflectorized lens; side reflex; replaceable lens and bulb; mount on stud; 1-wire; 1-bulb incandescent
This square light can be used as a clearance light or side marker light with side reflex. This PC-rated light functions as both a marker and clearance light when mounted properly at a 45 degree angle. This amber lens is reflectorized, meaning that a separate reflector is not needed for DOT compliance. The light measures 2-7/8" long x 2-1/8" wide x 15/16" deep. The light features a replaceable, screw-down lens and easy-to-replace bulb. The light contains a single lead wire for power and is grounded through the mounting stud.
Manufacturer Cross Reference
Light will work as an exact replacement for:
Peterson # 113A
Stud-mount square clearance and side marker light. PC-rated light functions as both a clearance and side marker light when properly mounted on a 45 degree angle. Features a reflectorized lens, eliminating the need for a separate reflector to meet DOT requirements. Single-wire design grounds through mounting stud.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we have Optronics Square Trailer Clearance Light, part number MC37AB. This light features a reflectorized lens that is DOT compliant. Both the lens and the bulb are replaceable, to make sure this light will last. It is a single wire system, meaning the wire lead that we have will be for your power source and the mounting stud on the back will double as our electrical ground. Next, we will grab our power supply and test the light. We will take our ground connection and clip it to the stud and we will take our power source and clip it to our wire lead. Next we will turn off our overhead light, to show you how bright the light is. And there you have it, Optronics Square Trailer Clearance Light, part number MC37AB.
Average Customer Rating: 4.9 out of 5 stars (78 Customer Reviews)
2-7/8" L x 2-1/8" W x 15/16" D; PC-rated; reflectorized lens; side reflex; replaceable lens and bulb; mount on stud; 1-wire; 1-bulb incandescentRebuilt my Big Tex trailer, etrailer had the exact match of the original clearance lights. Looks just like new.
The side marker light arrived a day ahead of the promised date and exactly what I needed.
We needed new ones to replace the old ones
Just perfect! Recieved quickly also!
I just recently got the optronix trailer lights and marker lights installed on my trailer,and they work perfect. I will definitely buy from etrailer again.Thanks for having reliable products!
Trailer Side Marker Lights received fully met my expectations.
Ordering process was streamlined through the eTrailer.com website.
Response time on order and shipping was outstanding.
eTrailer is a great company for the consumer!!!
The side marker lights work great! The folks at etrailer.com are top notch, super nice and really helpful. Nothing but good things to say about the people and the service.
Just what I needed
Always a pleasure doing business with etrailer. Product is always accurate, on time and communication is great. Thank you for being an example of what customer service should be...there aren't many like you
Great looking tire. Bought a used trailer. Guy said tires were "new" but date code says they are not. Both had cracking & were made in 2010. These new tires were both made a month or so ago from ordering. Practically direct from factory they are so new. Look good and bolted right on. No issues. Much more confident that I've reduced the chance of a blow out.
Light was exact match to what on the trailer other then mounting bolt was slightly smaller but did not effect the install. Just took a few minutes to replace broken light.
Exactly what I ordered, easy installation, works perfectly . . . will definitely purchase from here again the next time I need to replace one of my trailer lights.
Average quality by today's standards but price couldn't be beat.
I have an old trailer and this type of light seems to be very rare with the stud and wire so I was happy to find this replacement.
Purchased 2 of these that were exact replacements for lights that had been damaged or destroyed. Installed both in about 10 minutes with ease. Self grounding attachment stud was a real plus. Product was high quality and service was excellent. I have ordered several items in the past from etrailer and shipments were very fast and the people are great to work with.
Not much to say other then good price, good products and excellent service. I’ve ordered from them before.
The trailer lights were shipped and delivered in a reasonable time and the price paid was very good. I appreciate the timely communications that kept me updated on the status of the order.
Side marker lights were just what I wanted and were delivered in 3 working days. Thanks!
Patient with me and extremely helpful.
The product I bought was perfect for my trailer. The light fit and was easy to install.
etrailer is an excellent source.
Fast delivery ,good price , a Great items " etrailer.com " nice company
Their products work great on our traile rs
Just as described. Very convenient having a reflector/side marker in one piece.
This is a great product it took me less than 10 minutes to install 2 of these lights, entrails customer service is second to none thank you etrailor
They had just what I needed at a great price - I’ll be back!
The lights were of great quality and the perfect match for other lights on the trailer.
We bought these for a golf cart that we bought. They will work perfectly.
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