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Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Rectangle - Amber Lens
Optronics

Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Rectangle - Amber Lens

Part Number: MC44AB
In Stock
$3.94
Retail:$9.99
You Save: 61%
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In Use/Installed

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4" x 1-1/2". Incandescent trailer light serves as either a side marker light or clearance light when properly mounted. Built-in reflex reflector. Snap-on lens. Surface mount to trailer - hardware not included. 2-Wire design. P2 rated. Great Prices for the best trailer lights from Optronics. Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Rectangle - Amber Lens part number MC44AB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Optronics Trailer Lights - MC44AB

Highlights

  • One Light, Two Jobs: Works as a clearance or side marker light for flexible trailer setups.
  • Built-In Reflector: Reflex reflector removes the need for a separate reflector on your trailer.
  • Simple Surface Mount: 3" on-center holes make bolt-on replacement quick and clean.
  • Easy Maintenance: Snap-on amber lens and replaceable 194 bulb keep upkeep simple.
  • Durable Housing: ABS body stands up to weather and road wear for lasting performance.
  • Low Power Draw: Uses just 0.4 amps at 12.8V so it won’t strain your trailer wiring.

Features to know about

Reliable Visibility Day and Night: P2-Rated Incandescent Light

Keeping your trailer visible is key for safety. This rectangular amber light delivers consistent illumination as either a clearance light or a side marker light when properly mounted. It’s P2-rated, producing a 45-degree beam to each side of center for a total of 90 degrees of coverage—bright enough to be seen head-on while maintaining a clean, focused beam pattern. At 12.8V it draws only 0.4 amps, giving you dependable visibility without taxing your electrical system.

Simplifies Setup: 2-Wire Surface Mount Design

Installing this light is straightforward. The surface-mount base fastens easily using existing holes spaced 3" center-to-center, so setup takes only a few screws and wires. The simple 2-wire design—one power lead and one ground wire—means there’s no confusing harness or adapter to deal with. It’s made for quick replacements or clean new installs on any flat surface.

No Extra Reflectors Needed: Built-In Reflex Reflector

You don’t have to add separate reflectors to stay compliant or visible at night. The built-in reflex reflector in the amber lens handles that job automatically, cutting down on extra parts and keeping your lighting setup simple and functional. It’s one less piece to worry about while still meeting basic visibility needs.

Durable Construction You Can Maintain

Built with a tough ABS housing and a snap-on lens, this light stands up well to regular use and makes maintenance easy. The incandescent 194 bulb type can be replaced quickly whenever needed—no special tools or sealed housings required. Measuring 4" wide x 1-1/2" tall x 15/16" thick, it fits snugly and looks clean once mounted.

Straightforward Replacement for Common Lights

This Optronics light matches several older models in size and bolt pattern, making it a solid swap for Glo Brite 118A, Bargman #99, and similar 4" x 1-1/2" clearance lights that use 3" on-center mounting holes. It comes with a new base, bulb, and lens assembly so you can refresh worn or cracked housings in one go—no guesswork about compatibility.

Specs

Dimensions

  • Overall dimensions: 4" wide x 1-1/2" tall x 15/16" thick
  • Distance between mounting holes (center on center): 3"

Technical diagram of the Optronics MC44 Series rectangular amber trailer clearance and side marker light showing dimensions and mounting hole spacing for installation reference.

Electrical

  • Bulb type: 194
  • Power draw at 12.8V: 0.4 amps

Warranty

  • Warranty: 3-Year warranty

MC44AB Optronics Clearance or Side Marker Trailer Light w/ Reflector - Incandescent - Rectangle - Red Lens - P2 Rated - 2 Wire

Alternate part number: MC-44AB





Customer Satisfaction Score:

Ratings & Reviews

4.9

4119 reviews
5 Stars
(3688)
4 Stars
(333)
3 Stars
(53)
2 Stars
(17)
1 Star
(28)
Review sort icon
4" x 1-1/2". Incandescent trailer light serves as either a side marker light or clearance light when properly mounted. Built-in reflex reflector. Snap-on lens. Surface mount to trailer - hardware not included. 2-Wire design. P2 rated.

by:

good product & price



by:

Parts are an exact match for the originals making installation very easy.



by:

Excellent product!



by:

Good lites



by:

Needed to replace marker lights on my enclosed trailer. New lights fit perfect and were easy to install. Great quality and very well priced. Thanks etrailer.

Pete M. profile picture

Pete M.

9/21/2016

Performing and holding up great.



by:

Nice lights great company to do business with!



by:

Exactly what I needed.



by:

It matches the broken light to be repla ced



by:

Good quality! Great customer service.



by:

Perfect match to what is already on my trailer!



by:

Great product and customer service



by:

Fast delivery. Great service and commun ication

Mike L. profile picture
Etrailer Expert

Mike L.

2/18/2026

Thanks Jeff, I'm glad we had what you were looking for!



by:

Very well made light.



by:

These were exact replacement for the running lights on my 1994 Winnebago.



by:

Looks great!



by:

Awesome service
Would highly recomme
nd



by:

This was a similar style to my existing clearance lights but the covers are not interchangeable. If you are going to have to rewire all lights, the LED style are likely better.



by:

I replaced



by:

I recently purchased clearance light assemblies for my 2006 Winnebago Class "A" Motorhome. Winnebago parts handlers that I contacted told me that they were obsolete, and couldn't be purchased anymore. I then contacted eTrailer as I have done business with them in the past when looking for Motorhome parts. They had the exact replacement parts that I was looking for, and at a reasonable price. They shipped my product within a day of ordering and kept me updated on the delivery of it. From now on, eTrailer will be my first go to when I need parts.



by:

Perfect fit for replacement marker lights on my look brand enclosed trailer.



by:

The products were of good quality and fit just like the descriptions mentioned.



by:

I needed these as a replacement for a marker lens on my motorhome after having a moment in an eternal construction zone. The words say incandescent, but I can see the LEDs that replaced it. I am glad for that as it's better than I expected, but you need to update your description. I've attached a photo of the marker light. Thanks, there is no complaint here, just info.

Brooke M. profile picture
Etrailer Expert

Brooke M.

9/30/2023

It looks like you have received part # MCL44AB by mistake. I am glad you are happy with it! If you want to swap for the incandescent please feel free to let us know.



by:

Fits perfectly

Fred profile picture

Fred

6/3/2026

Works great if they go bad will buy again



by:

Side Marker Light was as advertised & would Recommend this Company Highly.



by:

Easy replacement for the old lights on my cargo trailer. And the price is great!


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See what our Experts say about this Optronics Trailer Lights

  • Replacement Lenses and Lights for Glo-Brite 118A/117R
    For your Glo-Brite 118A amber light the replacement lens that will fit is the Optronics # A44AB; the lights themselves are the Optronics # MC44AB. The Glo-Brite 117R can use replacement lens # A44RB while the light is # MC44RB. I've added links to video reviews of the lights for you to check out as well.
    view full answer...
  • Correct Replacement for Glo Brite Marker Lights 118A and 117R
    The correct replacements we offer for the Glo Brite Marker Lights 118A and 117R is the Trailer Clearance or Side Marker Light part # MC44AB for amber and part # MC44RB for red.
    view full answer...
  • RV amber clearance light lens replacement on Heartland Edge toy hauler
    Hi Jason, I was able to find your camper online and based on that front cap it looks like you’re likely running an Optronics MC44 or MCL44 style clearance light like part # MC44AB. That said, I want to be upfront that this is just an educated guess based on how commonly those lights are used on the front of campers like yours, and I can’t confirm it for sure from photos alone. It’s also pretty common for previous owners to swap lights out over time, so what’s on there now may not be what...
    view full answer...
  • Replacement Red and Amber 4" Marker Lights
    Hi Scott; for red and amber incandescent lights you can use the Trailer Clearance or Side Marker Light w/ Reflector # MC44AB (amber) and # MC44RB (red). The red lights have two wires so you will need to run the ground to the frame. Your current red lights probably gound through the hardware. The one thing these do not have is two bulbs each, they're single bulb lights. The mounting holes are 3" apart on center, and they're 1-1/2" tall so you can check to see if that matches as well. If...
    view full answer...
  • Correct Replacement Marker Lights to Replace Glo Brite 118A/117R
    Hey Buz we do! The correct replacements for the Glo Brite Marker Lights 118A and 117R is the Trailer Clearance or Side Marker Light part # MC44AB for amber and part # MC44RB for red. If there is anything else I can do to help you, please feel free to let me know in the comments!
    view full answer...
  • Do You Have a Replacement Amber Lens for My Bargman 99 Series Clearance Light?
    Hello Benjamin, We used to have the Amber lens for the 99 series clearance light, but we no long have it available because it is no longer being made. With that being said, I recommend swapping the light out for the Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Rectangle - Amber Lens # MC44AB. The part number for the old lens is: 34-99-012 Bargman Replacement Lens for 99 Series Clearance Lights - Amber, I did a Google search but was not able to find anyone that...
    view full answer...
  • Bracket and wiring for Optronics Trailer Clearance or Side Marker Light MCL165AB
    Thanks for reaching out Robert, I did some digging and here's what I found. Optronics bracket # A65PB is a single wire design that grounds through the mounting hardware. I checked through Optronics for the 2 wire to find that it's been discontinued. Optronics # MC44AB trailer side marker light is a 2 wire alternate option. What kind of trailer are you replacing this light on; boat, utility, travel trailer?
    view full answer...
  • Looking For Replacement For TMC 118A And 117R Trailer Clearance Lights
    The replacements we offer for the TMC 118A and 117R is the Trailer Clearance or Side Marker Light part # MC44AB for amber and part # MC44RB for red. This is technically not a direct replacement, but it is the closest thing we offer. The Optronics lights are 4" long and 1-1/2" tall with mounting holes 3" apart on center. They have a 2-wire design and a snap-on lens.
    view full answer...
  • Replacement Trailer Clearance Lights for Bargman 99 Series
    The correct replacement trailer clearance light for a Bargman 99 Series is the Optronics Trailer Clearance or Side Marker Light part # MC44RB for red or part # MC44AB or amber. The mounting holes for this light are spaced 3" apart on center. It features a simple two wire installation, one for power and one for ground. In order to remove the old lights it would be easiest to just drill out the rivets with a small drill bit. The drilled holes would then make good pilots for the self tapping...
    view full answer...
  • Recommended Replacement for Glo Brite 126R/126Y Side Marker Lights
    The Optronics Trailer Clearance or Side Marker Light part # MC44RB for red or part # MC44AB for amber work great to replace the old discontinued Glo Brite 126R/126Y. They are not the exact same but very similar in design and dimensions. They feature a very simple two wire install.
    view full answer...
  • Recommended Replacement Lens or Light Assembly for GloBrite 126R/126Y Amber Marker Light
    I may have a solution for you, but Glo-Brite has since gone out of business, so replacement lenses that are guaranteed to fit are no longer available. With that said it certainly looks like your Glo-Brite 126y is very similar in shape and size (4"x1-1/2") to the Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Rectangle - Amber Lens # MC44AB and the replacement lens for that light is the Replacement Amber Lens for MC44 Series and BA44 Series Trailer Lights # A44AB. I...
    view full answer...
    Image 1 for Image 2 for
  • Is Optronics Trailer Clearance Light # MC44AB Same as Winnebago 111102-02-000
    Yes, the Optronics trailer clearance light part # MC44AB is the same as the Winnebago 111102-02-000 clearance light.
    view full answer...
  • Replacement Marker and Clearance Lights For Globrite 118A/117R On a 2004 Haulmark Trailer
    You are going to have to replace your running lights on your 200 Haulmark Trailer as I do not see that there are any replacement lenses available for your Globrite 118A/117R clearance/marker lights. The Optronics Trailer Clearance or Side Marker Light w/ Reflex Reflector Red # MC44RB and Amber # MC44AB appear to be the same size as the Globrite lights. These are 4" long X 1-1/2" wide. We do carry the Replacement Bulb # A194B, Red Lens # A44RB and Amber Lens # A44AB for these lights...
    view full answer...
  • Recommended Replacement for Glo Brite 126R Marker Lights in Amber and Red
    To replace your GloBrite 126 marker lights you can use the # MC44RB for the red light and the # MC44AB for the amber light. Both of these lights are 2 wire lights and will work well on your cargo trailer. And yes, we can ship this particular product to our neighbors to the North.
    view full answer...
  • Glo Brite 118A/117R LED Bulb Replacement
    The bulb type of the Glo Brite 118A/117R you have is a 194 so for an LED you'd just want the # DI88VR.
    view full answer...
  • Replacement Lenses and Light Assemblies for Glo-Brite 118A/117R
    The Glo-Brite 118A is the amber light and for the lens you need # A44AB while the light assemblies are the Optronics # MC44AB. For a Glo-Brite 117R, which is the red light, you need replacement lens # A44RB and light # MC44RB. We do not carry Glo-Brite products so while Optronics has previously confirmed for us the lenses will snap into the Glo-Brite light housing the light assemblies themselves are 2-wire lights and not 3-wire lights like Glo-Brite.
    view full answer...
  • Replacement Bulb For A Bargman #99 Clearance Light
    I have just the replacement bulb for your Bargman #99 clearance lights! The Replacement Side Marker Light Bulb # 194 # A194B. These lights are sold individually so make sure to adjust the number of bulbs you will need for your trailer. I attached a review video link below.
    view full answer...
  • Availability of Incandescent Version of Optronics # MCL44AB1 LED Trailer Clearance/Side Marker Lamp
    The incandescent version of the # MCL44AB1 lamp you mentioned is part # MC44AB. The lamp measures 4 by 1-1/2 inches and mounts on 3 inch centers. The lamp is a two wire design, one wire for power, the other for ground. This differs a bit from the LED version that grounds through its mounting hardware.
    view full answer...
  • Replacement Amber Light For Brite Glo 118A/117R
    For the same size light, we have the Rectangular Trailer Clearance, Side Marker Light with Reflector, 2 Wire - Amber # MC44AB or the LED version with 6 diodes # MCL44AB. These will both be 4 inches long by 1-1/2 inches wide with 3 inch on center mounting holes.
    view full answer...
  • Which Replacement Bulbs For MC44AB or 118A/117R Light
    The bulbs that are in the 118A/117R lights you mentioned are the Replacement Side Marker Light Bulb # 194 # A194B. These are the bulbs that are in the complete amber light you're looking for, as well- the Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Rectangle - Amber Lens # MC44AB.
    view full answer...
  • Mounting Hole Spacing For Side Marker/Clearance Lights MC68 and MC44
    The Optronics Clearance or Side Marker Trailer Light # MC68AB and # MC68RB have a mounting hole spacing of 2-3/4" for the hole centers and are centered horizontally and vertically in the mounting plate. The Trailer Clearance or Side Marker Light w/ Reflector # MC44AB and # MC44RB have a mounting hole spacing of 3" for the hole centers and are centered horizontally and vertically in the mounting plate.
    view full answer...
    Image 1 for Image 2 for
  • Recommended Replacement Side Marker Lights For 2004 Winnebago Itasca Sunova
    We do have replacement lights for the Glo Bright 118A and 117R lights you have on your Winnebago Itasca. If the lights you have use incandescent bulbs, the replacement light you need for the amber light 118A, is part # MC44AB. This light measures 4 inches long and 1-1/2 inches wide and is 15/16 inches tall, and the mounting holes are spaced 3 inches center to center. The replacement bulb for this light is part # A194B. For the 117R light replacement is part # MC44RB. It has the same...
    view full answer...
  • Replacement Housings For The GloLight 118a And 117r Trailer Clearance Lights
    We have both the replacement lens and assemblies for the GloLight 118a and GloLight 117r trailer clearance lights. They are available in both an incandescent part # MC44AB and an LED part # MCL44AB1 bulb for the amber lights. For the red lights, you will need part # MC44RB for the incandescent bulbs and part # MCL44RB for the LED version. The replacement lens assemblies for the amber housings is part # A44AB whereas the replacement lens for the red housings is part # A44RB.
    view full answer...
  • What is Difference Between Optronics Clearance Lights MC44AB and MC44AS
    They are totally different designs. The clearance light part # MC44AB has more of a round face and the other light which we don't carry has a flat face.
    view full answer...


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Info for this part was:

Employee Mike L
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Mike L
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Employee Jeffrey L
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Employee Patrick B
Video Edited:
Patrick B
Employee Joshua S
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Employee Kathleen M
Installed by:
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Employee Ed W
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