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Optronics Trailer Clearance or Side Marker Light w/ Reflex Reflector - Incandescent - Red Lens
(4189 reviews)
Price: $4.57
In Stock
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Optronics Trailer Clearance or Side Marker Light w/ Reflex Reflector - Incandescent - Red Lens
Part Number: MC44RB
In Stock
$4.57
Retail:$14.62
You Save: 69%
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- Reviews (4189)
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Optronics Trailer Lights - MC44RB
Highlights
- Easy Swap for Old Lights: 4" x 1-1/2" size and 3" hole spacing match common OEM setups.
- Built-In Reflex Reflector: Adds visibility without needing a separate reflector.
- Simple 2-Wire Hookup: Power and ground leads make wiring quick and clear.
- Durable ABS Housing: Stands up to vibration and road wear for long service life.
- DOT P2 Rated: Meets visibility requirements for clearance or side marker use.
- Quick Bulb Replacement: Uses a standard 194 bulb you can change in minutes.
Features to know about
Simple Lighting Upgrade: Direct Replacement Fit
Swapping out old or broken clearance lights doesn’t get much easier than this. The Optronics 4" x 1-1/2" rectangular light lines up perfectly with standard 3" mounting holes, so it fits right where your old one came off. The surface-mount design keeps things simple—just power and ground with its 2-wire hookup. No special brackets or gaskets are needed, so it’s a quick, clean replacement you can do in minutes.
Bright Coverage Where You Need It: P2-Rated Red Illumination
Safety starts with being seen, and this light’s P2 rating delivers a clear, focused beam pattern that covers 45 degrees to each side of center for a total of 90 degrees of visibility. Mounted properly, it works as either a clearance light or a side marker, making sure other drivers can see your trailer from the right angles. That dependable red glow stands out day or night and keeps you compliant on the road.
Built-In Reflector for Extra Visibility: No Add-On Needed
This light pulls double duty with its built-in reflex reflector molded right into the red lens. You don’t need to install a separate reflector to meet visibility requirements—it’s already part of the design. Even when the bulb’s off, that reflector catches headlights and helps mark the trailer’s position, adding a layer of safety without extra parts.
Durable and Serviceable: Replaceable 194 Bulb and Tough ABS Housing
Durability matters on gear that lives outside. The tough ABS plastic base holds up to vibration and weather, while the snap-on red lens makes it easy to access the bulb inside when it’s time for a quick change. It uses a common 194 bulb that you can replace in seconds, keeping your light in working order for years without needing a whole new fixture.
Straightforward Wiring: Two Wires, No Guesswork
Wiring doesn’t get simpler than this—one lead for power and one for ground on any 12V DC system. That straightforward setup makes it ideal for quick installs or replacements without chasing down complicated harnesses. Hook it up, snap the lens back on, and you’re ready to roll.
Specs
Dimensions
- Overall dimensions: 4" long x 1-1/2" tall x 15/16" deep
- Distance between mounting holes (center on center): 3"
Electrical and Lighting
- Bulb type: 194
- Voltage: 12V DC electrical systems
- Design: 2-Wire design includes power lead and ground wire
- Light type: Incandescent
- Rating: P2 rated
Construction
- Lens color: Red
- Lens type: Snap-on lens with built-in reflex reflector
- Housing material: Durable ABS plastic base
- Mount type: Surface mount - hardware not included
Compliance
- Certification: DOT compliant
Warranty
- Warranty: 3-Year warranty
MC44RB Optronics Trailer Clearance or Side Marker Light w/ Reflex Reflector - Incandescent - Rectangle - Red Lens - P2 Rated
Alternate part number: MC-44RB
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Wrong item was ordered
- Package not accepted
Ratings & Reviews
4.9
4189 reviews
by:
Ronald
10/15/2026
excellent product and easy replacement for existing failed side light.
by:
Daniel
10/23/2026
Perfect part. Quick shipping
by:
Michael
06/24/2026
The lights worked great and were of good quality. The covers fit firmly in place and I won't have to worry about them coming off like the old lights did.
by:
John
09/07/2026
These were a match to my Grand Design lights. I need to replace cracked covers. Fit perfect.
by:
Perry
07/13/2026
Easy replacement for the old lights on my cargo trailer. And the price is great!
by:
Richard
07/07/2026
Exactly what I need to replace the lights 1997 Winnebago. Fast shipping.
by:
Dean
07/29/2026
Perfect direct replacement. Fast fulfillment.
by:
Ted Mazurak
05/17/2022
I have a 1995 Winnebago Minnie winnie that has Glo Brite 117R clearance lights.
etrailer mailed me promptly an optronics clearance light that is a perfect match. Thank you etrailer !!!!
etrailer mailed me promptly an optronics clearance light that is a perfect match. Thank you etrailer !!!!
by:
Michael
10/12/2026
ITEMS EASY TO FIND.
by:
Don
06/12/2026
Easy access to order and great communication in processing
by:
Daniel
09/21/2020
Looks great, works great and shipping was quick and easy. I also like how detailed the website is with pictures, measurements and very informative.That really helps when deciding if that’s the right product for me.
by:
Gary
06/17/2026
Prompy professional order handling. Priced competitively.
by:
Victor
04/07/2024
Perfect fit for my RV. The unit could be improved by providing an access hole for wires. The housing did not have access hole for wiring, so I had to drill one to complete wiring.
by:
Mitch R.
07/18/2017
Came in a timely manner and worked perfectly fine to replace the lights that broke on our trailer. The only major difference between the two being that the ones that were on the trailer did no have a ground pig tail and instead the ground terminal was hooked directly to one of the screws attaching the light to the trailer. Other than that they worked just fine.
Mitch R.
7/18/2018
After a year I dont have much to update on my review. The trailer light is still going strong!
by:
Chris B.
08/26/2015
I was looking for an exact replacement light for one I broke on my camping trailer. Etrailer had them at a great price. I ordered extra in both red and amber so will have spares when I back into something else. Great company to deal with. I was so glad to find the exact light to match what I had. Couldn't be happier.
Chris B.
9/2/2016
Both products have worked out beautifully. Thanks for the follow up. E Trailer is a great company to deal with.
by:
Barry M.
05/10/2019
The light was a great replacement for the OEM light that had a broken wire. Perfect fit and took about 5 minutes to replace, including installing weatherproof connectors that needed heating to seal. I would purchase again.
Barry M.
7/17/2020
The product continues to perform as expected with no problems whatsoever.
by:
Dave
09/15/2024
As described. Excellent quality. Perfect fit. Thanks!
Dave
9/16/2025
Works great.
by:
Roman
03/27/2018
I was having a hard time finding a replacement light for my trailer. Found this light and it matched perfectly. The price was great and shipped fast. I will definitely use etrailer.com again.
Roman
3/27/2019
The light was easy to install and is working great.
by:
randy m.
06/22/2016
great service and everything I order was excellent very sharp looking my trailer
all new running lights brake lights and tires with crome wheels
thank you again
all new running lights brake lights and tires with crome wheels
thank you again
by:
Mark
06/18/2020
I bought these to replace some damaged Glo-Brite lights on my RV. Quality appears to be at least as good as those and for the money I am very happy with my purchase. Only issue was the wires exited the light base in a different location and I had to drill new exit holes to use the existing wiring hole in the RV, but this was easily done.
by:
RoadRunner
05/27/2016
I bought two of these. One to replace one on my 2002 Winnebago Adventurer and a spare. The fit was perfect, the price was right and I got them quickly. Always a pleasure doing business with etrailer..
Roadrunner
5/28/2017
Great
by:
Michael C.
09/12/2018
Light Fit perfectly for my 12' tow behind trailer
Michael C.
9/12/2019
So far so good, still holding up to the elements with no issues. Will buy again.
by:
Jerry
11/26/2016
As always, if you need something for your trailer, fifth-wheel, motorhome, etc., eTrailer is the place to go. Fair prices, fast shipping, extraordinary customer support. I had trouble finding these exact clearance/marker lights for my old motorhome, but, here they were.
Thank you eTrailer
Thank you eTrailer
by:
Jamey
07/29/2019
I purchased 2 trailer lights as replacements for my Glo Brite 117R side marker light that was missing its red lens. It fit perfectly. Excellent service! Fast shipping. I definitely recommend.
by:
Charlie
01/13/2017
Found this company on the website, They had just what I was looking for and a Whole lot more, I wanted to add more lighting to my trailer and wanted to keep all the lights the same, I did my shopping on line which was very easy to do, I placed my order, received an email with tracking information, Received my parts very quickly, would definitely recommend them to anyone. They have a Great selection of parts for just about anything, and the Prices are very reasonable. Looking forward to doing business again, Thank you etrailer!
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See what our Experts say about this Optronics Trailer Lights
- Replacement Lenses and Lights for Glo-Brite 118A/117RFor 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 117RThe 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... - Replacement Clearance or Side Marker Light for a 20321-02 LightHey Cheryl. I have a solution for you but your 20321-02 light has been discontinued and there's no replacement lens available for it. I recommend replacing your light with the Trailer Clearance or Side Marker Light w/ Reflector item # MC44RB. The Trailer Clearance or Side Marker Light item # MC44RB has a red lens and measures 4" wide x 1-1/2" tall x 15/16" thick. It has mounting holes spaced 3" apart on center and uses a simple 2-wire power and ground installation method. What kind of...
view full answer... - Replacement Door Latch for a 2017 Montana 3920FKHey Chris! There's no database that shows me part numbers for what's on your 2017 Montana 3920FK. What I need you to do is measure the cutout that your current door latch sits in to see if we have a replacement. You can leave this information in the comment box below. The Global Link RV Entry Door Locking Latch Kit with Keyed Alike Option item # 295-000019, you were looking at fits cutouts that measure 2-1/2" wide x 3-1/2" tall to 3" wide x 4" tall.
view full answer... - Looking for Replacement Lens for Trailer Clearance Light # MC44RBHey Chris, if you are looking for a replacement lens for the part # MC44RB you'd want the part # A44RB. If you are looking for a lens for a different light let me know and I'll see if we can help.
view full answer... - Replacement Red and Amber 4" Marker LightsHi 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... - Looking For Replacement For TMC 118A And 117R Trailer Clearance LightsThe 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... - Clearance Light With Wires Running Out From CenterHi Manny; you can drill a hold in the center of the # MC44RB to run the wires. There isn't a lot to the light inside the lens/housing so you won't damage a circuit board or anything like that by drilling. The other option would be to use the # MC32RB but you may have to enlarge your opening on the trailer for that plug to fit and sit flush.
view full answer... - Replacement Trailer Clearance Lights for Bargman 99 SeriesThe 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 LightsThe 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... - GloBrite 126R/126Y Red Replacement LightTo replace your GloBrite 126 marker lights you can use the # MC44RB. These lights are 2-wire incandescent lights measuring 4" long by 1-1/2" wide (same as your existing marker lights) and will work great for your trailer.
view full answer... - Replacement Marker and Clearance Lights For Globrite 118A/117R On a 2004 Haulmark TrailerYou 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 RedTo 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... - 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 Side Marker Lights with Mounting Holes 3" Apart for Horse Trailer I recommend using the Optronics Trailer Clearance or Side Marker Light w/ Reflex Reflector - Incandescent - Red Lens # MC44RB, which has mounting holes 3" apart like your existing lights and will be 4" long x 1-1/2" wide. These are an incandescent light, so they'll be a good like for like replacement of your existing lights. If you're instead looking for an LED light, you can use the # MCL63RB you were looking at, which also have mounting holes 3" apart. I've also linked our entire selection...
view full answer...
- Red Clearance Lights For A 2021 Northwood Nash Travel TrailerWe have what you are looking for. Depending on the style you currently have you have some choices. Just depends on what size and bulb type you need. We have the Optronics LED Trailer Clearance or Side Marker Light w/ Reflector - 6 Diodes - Rectangle - Red Lens # MCL44RB1 with a single wire. Or the Optronics Trailer Clearance or Side Marker Light w/ Reflex Reflector - Incandescent - Red Lens # MC44RB that is a double wire hook up. Or we have the LED Clearance or Side Marker Light with...
view full answer... - Mounting Hole Spacing For Side Marker/Clearance Lights MC68 and MC44The 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...
- Recommended Replacement Side Marker Lights For 2004 Winnebago Itasca SunovaWe 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 Trailer Taillight Lens for 2022 Grand Design 2500RLWe do carry replacement lenses for the trailer taillight part # MCL40ABP with the part # A44AB.
view full answer... - Replacement Housings For The GloLight 118a And 117r Trailer Clearance LightsWe 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... - How To Remove Lens Of MC44RB Side Marker Light On TrailerHey Ronald, Normally the lens # A44RB comes off fairly easily if it's not very old. If it's a bit old and has build up, you can try to gently pry with a flat head screw driver but it could crack easily so be careful. Most people just swap out the entire setup with Optronics Trailer Clearance or Side Marker Light and lens # MC44RB so they aren't too worried about prying it open and damaging the old lens. What kind of trailer is this on?
view full answer... - Availability of MC44AB Trailer Light with Red LensWe do have a version of the MC44AB with a red lens with the part # MC44RB. If you need just the lens it would be part # A44RB.
view full answer... - Amber Trailer Side Marker Running Light that Measures 4 L by 1-1/2 W by 15/16 DYou sure can. The amber side market light that matches the red, part # MC44RB, is part # MC44AB. They're both 4 by 1-1/2 inches with 3 inch, on center, mounting holes. We also just carry the amber lens, part # A44AB.
view full answer...
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Info for this part was:
Video Edited:
Patrick B
Expert Research:
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Expert Research:
Jeffrey L
Updated by:
Laura H
Updated by:
Brian T
Updated by:
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Installed by:
Cole B
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Victor
5/3/2025
Still operating. No issued.