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Optronics LED Clearance or Side Marker Light w/ Reflex Reflector - 6 Diodes - Oval - Amber Lens
Optronics

Optronics LED Clearance or Side Marker Light w/ Reflex Reflector - 6 Diodes - Oval - Amber Lens

Part Number: MCL31AB
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$6.94
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4" x 2-1/6" Oval. LED trailer light functions as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing. Surface mount - hardware not included. 2-Wire design. P2 rated. Great Prices for the best trailer lights from Optronics. Optronics LED Clearance or Side Marker Light w/ Reflex Reflector - 6 Diodes - Oval - Amber Lens part number MCL31AB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (204)
  • Q & A (0)
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Optronics Trailer Lights - MCL31AB

  • Clearance Lights
  • Oval
  • LED Light
  • Amber
  • 4L x 2-1/16W Inch
  • Surface Mount
  • Rear Clearance
  • Side Marker
  • Non-Submersible Lights
  • Optronics

4" x 2-1/6" Oval. LED trailer light functions as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing. Surface mount - hardware not included. 2-Wire design. P2 rated.


Features:

  • LED trailer light functions as a clearance light or side marker light when properly mounted
  • Built-in reflex reflector removes the need for a separate reflector
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide brighter light with less power output
    • No bulbs to replace - no brittle filaments
  • Durable ABS housing and acrylic lens
  • Amber lens over white LEDs
  • Compatible with 12V DC systems
  • Surface mount to trailer - hardware not included
  • 2-Wire design includes power lead and ground wire
  • DOT compliant
  • P2 rated


Specs:

  • Dimensions: 4" long x 2-1/16" tall x 1" deep
  • Distance between mounting holes (center to center): 3"
  • Diodes: 6
  • Power draw at 12.8V: 0.040 amps
  • Lifetime warranty on LEDs


Optronics MCL31 Series Amber LED Side Marker and Clearance Light with Reflex Diagram

P2-Rated Lights

Diagram of light spread for P2 rated light

A P2-rated light produces a 45-degree angle of light to either side of its centerline for a total of 90 degrees of coverage. This beam pattern can be seen straight on, but it cannot be seen clearly from the side. So this type of light can be used as either a side marker light or a clearance light, but it cannot function as both. If you need both functions, then you must install 2 separate lights on your trailer - one as a front or rear clearance light and one as a side marker light.



MCL31AB Optronics LED Clearance or Side Marker Trailer Light w/ Reflex Reflector - 6 Diodes - Oval - Amber Lens - P2 Rated

Alternate part number: MCL-31AB




California residents: click here


Customer Satisfaction Score:


Customer Reviews

Optronics LED Clearance or Side Marker Light w/ Reflex Reflector - 6 Diodes - Oval - Amber Lens - MCL31AB

Average Customer Rating:  4.8 out of 5 stars   (204 Customer Reviews)

4" x 2-1/6" Oval. LED trailer light functions as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing. Surface mount - hardware not included. 2-Wire design. P2 rated.

by:

These worked great at upgrading my old trailer marking lights. Still working great a year after install.



by:

Great replacement lights for my camper. Perfect fit and well designed.



by:

These are very bright compared to the old 12 volt, single-bulb varieties they replaced. Easy to mount and I recommend them.



by:

I used this side marker to replace existing Bargman 99 series lights on a camping trailer. The Optronics LED model was not quite as bright as I would expect for a 6 diode unit, but still an improvement over the incandescent model. It is larger in size than the Bargman 99 series, so it covers up any surface imperfections on the trailer.



by:

Fit and works fine on my RV trailer.



by:

Work great on my motorhome.



by:

Perfect LED replacement. Worked great.



by:

Great product at a great price.



by:

Easy install on my horse trailer. Nice and bright, just as expected.



by:

I was able order the parts I needed and get them quickly.



by:

One of the best upgrades I made was switching the lights to LED.



by:

etrailer had what I needed, and it got here fast! Perfect!



by:

I needed to replace some of the lights on my boat trailer. The old light were incandescent and some of the bulbs had burned out, securing screws were rusted. Product was exactly what I was looking for. Links on each product web page provided very good description and product information.

Thank you for great selection and process.

Phil Z.

11/21/2017

I am very happy, the lights are working great, with no issues. Thank you



by:

I removed a light of the same shape that had an incandescent bulb. This light did not require any electrical changes such as the addition of a resistor. It did require one new hole per fixture due to the holes not lining up with the holes from the old light. Also, the size of the screws/bolts that held it in place had to be smaller. I used 10-32 screws and lock nuts to secure it. This was NOT a direct replacement as I thought it would be. The 2 wires about about 2 gauges smaller than the original light. It works fine once installed. It caused added expense and more labor. Looks pretty much identical to what I took off but it is brighter and builds no heat when on. For the money, it was a good purchase.



by:

Good buy for a great side marker. Lamp comes with about a five or six inch lead wires that simplify electrical installation.

Paul

12/10/2021

LED lights are bright and working well after a year of regular use.



by:

Excellent replacement



by:

These lights were used to replace the incandescent versions. Worked great.



by:

replaced trailer wireing with thicker wire, replaced 4 side marker lights led, replaced both tail lights led, all worked and look good. I just hope these led lights last a long time. the lights I took off all worked, but were not as bright as I wanted, they were the original lights that were on my pontoon boat trailer.



by:

I was having problems with the electrical system on my horse trailer. Basically the marker and tail lights were all original (18 years old) and worn out. I believe they were causing shorts as well as drawing way too much current. We changed all the trailer lights to LED and the transformation is remarkable - no more braking problems, no more dim barely working runnig lights. The service from etrailer was excellent. Everything arrived as ordered and promised.



by:

I was very fortunate to have purchased an all fiberglass enclosed motorcycle trailer from a friend who no longer rides. Over the years I have updated to all LED lighting and replaced all hardware to marine grade stainless. I live in the tropics with high humidity and plenty of salt erosion, therefore, this is further protection against corrosion. LED lights purchased from your company we’re not only reasonably priced but excellent quality...



by:

easy to order, and fast delivery.



by:

LED lights are the way to go. The reflective marker lights are great for times when the lights aren't on yet headlights will reflect off them letting the driver know there is something there. The only thing would be better on these lights would be a better ground.



by:

The lights work great, very bright. Easy to connect the wires and mounting was a breeze.

Cheryl

7/24/2021

These lights are easy to install and are bright.



by:

Great product, price and service, met all my expectations.



by:

Excellent set of lights for my horse trailer. Installation was easy and the brightness of the LED lights is outstanding. No more replacing bulbs or cleaning contacts for the bulbs to work properly. Etrailer shipping was fast and all products were excellent.


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204
Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Clearance Light Replacement for Glo Brite 122-Y Lights on Trailer
    I have a solution I can provide for you but we do not carry the replacement lens you are looking for. The clearance light part # MCL31AB and # MCL31RB are very close in shape and dimension to the lights you are looking for. They are both 4 inches wide by 2 inches tall. The # MCL31AB is amber in color and the part # MCL31RB is red in color.
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  • Replacement Clearance Light Option For A 2012 Thor Hurricane 23A Motorhome
    Hello Barbara, we certainly should have the correct replacement clearance lights for your 2012 Thor Hurricane 32A motorhome. That said, I do not have a way to know exactly what light you will need based on a year make and model of RV. Based on the pictures I can see online, the clearance lights look similar to the Optronics Trailer Clearance or Side Marker Light # MC32AB and # MCL32RB. These are 4" long x 2" tall x 1" deep LED clearance lights. If this is not exactly what you have, feel...
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  • Clearance Light Replacement for Glo Brite 122-Y and 122 R Lights on Trailer
    I have a solution I can provide for you but we do not carry the replacement lens you are looking for. The clearance light part # MCL31AB and # MCL31RB are very close in shape and dimension to the lights you are looking for. They are both 4 inches wide by 2 inches tall. The # MCL31AB is amber in color and the part # MCL31RB is red in color.
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  • Recommended LED Marker Lights for Trailer Over 80 Inches Wide
    The Trailer Clearance or Side Marker Light w/ Reflex Reflector - LED - 3 Diodes - Red Lens - Black Base # MCL32RBB will have the room to hide wires. The amber lens # MC32ABB is an incandescent bulb. I believe you will want the Oval LED Trailer Clearance, Side Marker Light with Reflector, 6 Diode - Amber # MCL31AB along with the Oval LED Trailer Clearance, Side Marker Light with Reflector, 6 Diode - Red # MCL31RB. For the light bar, I recommend the Sealed, 3-Light Truck, Trailer Identification...
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  • Clearance Light Replacement for Glo Brite 122-Y Lights on Trailer
    I have a solution I can provide for you but we do not carry the replacement lens you are looking for. The clearance light part # MCL31AB and # MCL31RB are very close in shape and dimension to the lights you are looking for. They are both 4 inches wide by 2 inches tall. The # MCL31AB is amber in color and the part # MCL31RB is red in color.
    view full answer...
  • LED Replacements for Optronics Rectangular Trailer Clearance Lamp MC32RB
    We do not have an exact LED replacement for the incandescent side marker lamp you mentioned, part # MC32RB, but we have an alternative that is very close. Part # MCL31RB (red lens) and part # MCL31AB (amber lens) are shaped a bit differently than the lamp you referenced. They are also about an 1/8 of an inch wider and thinner in depth. The important dimension, the distance between the mounting holes, is still three inches, so you will be able to use the existing holes. If you click on...
    view full answer...
  • Replacement Light Recommendation for a Bargman Light part # 34-47-802
    The Bargman Light part number 34-47-802 that you referenced was discontinued back in 2013 so there are no replacement parts available for it. For a very similar light to that check out the part # MCL31AB. I attached an install video for you to check out as well.
    view full answer...
  • Replacement Side Marker Lights for Southwind RV
    If the Glo-Brite 446A/R side marker lights on your Southwind RV are 4" long x 2" wide you can use # MCL31AB if you need LED lights or you would use # MC38AB for an incandescent replacement. If your Southwinds RV has a different sized or color light, please let me know or send a picture and I can help you find the appropriate replacement light.
    view full answer...
  • Replacements for 446A/R RV Clearance Lights
    Although we don't offer a replacement lens or a clearance lamp assembly that fits those dimensions, we offer a 6 x 2 inch replacement LED clearance lamp, part # MCL76RB that would last up to 50 times longer than an incandescent lamp, would be much brighter and would only draw a fraction of the power that an incandescent lamp would. I've linked to a product description video for the lamp I recommended.
    view full answer...
  • Is there a Replacement Lens or Light for TMC GLO-BRITE 2317/2318A
    I do have a solution for you but we do not have a replacement lens that matches your Glo-Lite ID light bar (from what I found the light number 2317 is an ID light bar. If that is not the case please send a picture of the light with the dimensions). We do have many other ID light bars that you could use such the # MC99AB. Replacing the light is going to be the way to go since the company is out of business.
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  • Availability of Replacement Trailer Taillights Reflect-O-Lite SAE-P2-A-72
    For an exact replacement to what you sent in a picture of we have the part # MCL31RB for a red taillight and part # MCL31AB for an amber light.
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    Image 1 for
  • Replacement Marker Lights for Bargman 552 on 1989 Pacer Arrow RV
    Hello James; the Bargman 552 lights you have are no longer around but we do have a similar replacement. The closest match comes from Optronics and measures 4" long x 2-1/16" tall. You can choose from the following based on LED or incandescent and color: -Optronics LED Clearance or Side Marker Light w/ Reflex Reflector - Red Lens # MCL31RB -Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Red Lens # MC31RB -Optronics LED Clearance or Side Marker Light w/...
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  • Recommended Round Trailer Fender and Lights for 14 Inch Wheels on 2016 Forest River R-Pod Trailer
    No photo came through, so I did a little research on your trailer to attempt to get the missing visual. I recommend the CE Smith Single Axle Trailer Fender- 14" Wheels - Qty 1 # CE17900G for your 2016 Forest River R-Pod 180. It will need to be primed and painted black to match your trailer or powder coated like the original fender. You may want to consider the mounting brackets # CE26098G-2 if your mounts were damaged as well. For the marker lights, I don't know the size you need,...
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  • Would Replacement Lens part # A31AB Replace Lens of Reflect O Lite Bargman 478
    Yes, the part # MCL31AB that you referenced would replace a 478 Reflect o Lite Bargman clearance light lens as they are essentially the same.
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  • Replacement Clearance Lights for 2012 Forest River Sunseeker Class C
    We do not have information that tells us specifically what lights are on your 2012 Forest River Sunseeker, so the best way to determine what's going to fit is by providing measurements or a part number off the existing lights. With that said, it looks like you may have something similar to the Optronics LED Clearance or Side Marker Light w/ Reflex Reflector - 6 Diodes - Oval - Amber Lens # MCL31AB. The # MCL31AB is 4" long x 2-1/16" tall x 1" deep with mounting holes 3" apart (center on...
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  • Troubleshooting Running Lights Come On Then Shut Off On Trailer
    It sounds like you either have a weak/bad ground or your lights are drawing too much power. In order to find the problem lets start by double checking the connector on your 2020 GMC Sierra 2500. Using a circuit tester like # PTW2993, check for power on the running light circuit. More than likely you have constant power here and the issue is on the trailer side. If it is on the trailer side I would start by inspecting the connector. Make sure it is free from debris and corrosion. From...
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  • Parts Needed to Replace All Wiring a Single Axle Cargo Trailer
    To completely rewire your cargo trailer, I would recommend picking up a trailer light kit like the Standard Light Kit, # TL5RK, or # TLL9RK for LED lights. These kits include all necessary wiring and hardware needed to install the lights on your trailer. The LED light kit does not include clearance lights. To add clearance lights, I would recommend using # MCL31AB. The best option would be the LED lights because they only use a fraction of the power that the incandescent lights use. If...
    view full answer...
  • Replacement Trailer Light Assembly to Replace Glo Brite # 122Y
    I have a solution I can provide for you but we do not carry the replacement lens you are looking for. The clearance light part # MCL31AB and # MCL31RB are very close in shape and dimension to the lights you are looking for. They are both 4 inches wide by 2 inches tall. The # MCL31AB is amber in color and the part # MCL31RB is red in color.
    view full answer...
  • Availability of 2 inch x 4 inch Amber and Red 6 Diode LED Clearance Lights for Trailer
    We have just the lights that you are looking for! Optronics has their Oval LED Trailer Clearance, Side Marker Light with Reflector, 6 Diode in both Amber # MCL31AB and Red # MCL31RB. These lights are 6 diode LED clearance lights that measure 2-1/16 inches by 4 inches. They do come with 2 wires but one of them is a ground that you will attached to a bare metal surface on your trailer. The other wire will be connected to the appropriate wiring on your trailer that your old lights were hooked...
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  • Replacement Trailer Clearance Light with 3 Inch Centers
    The best replacement clearance light we have for you is the Oval LED Trailer Clearance Light part # MCL31RB for red or part # MCL31AB for amber. This light measures 4" long x 2-1/16" wide x 1" deep and mounts on 3" centers. It has a wire for power and a wire for ground but it won't be much work at all to run the new ground wire. It features 6 LED diodes and has a reflective housing. I have attached review videos for you as well.
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  • How To Mount the Optronics LED Clearance or Side Marker Light w/ Reflex Reflector Part # MCL31AB
    The Optronics LED Clearance or Side Marker Light w/ Reflex Reflector part # MCL31AB mounts by running two screws like part # 1131832 though the base. In order to access these screw holes you will need to remove the lens. I have attached a photo that shows the screw holes. I have also attached an install video for you as well. In order to make the wiring connections you will also need part # DW05714 and part # DW05737-1.
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  • Replacement Clearance Light for 2020 Mallard M252 Travel Trailer
    In order to find a replacement clearance light for your 2020 Mallard M252 Travel Trailer I recommend taking some measurements. The # MCL31AB is 4" long x 2-1/16" tall x 1" deep. This is an LED light that uses a 2-wire design for power. If this matches your light from the other side in terms of dimension and appearance then it would make a good replacement. If you send me the dimensions of the light on the other side and a picture I would be happy to look for a different replacement if...
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    Image 1 for Image 2 for
  • Replacement Clearance Light for 2001 Fleetwood Southwind Motorhome
    Could I see pictures of the lights you want to replace? With that I can easily identify what replacement parts you may need.
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  • Most Popular Replacement Clearance/Marker Lights for an Old Travel Trailer
    The most popular clearance/marker lights we offer are the Optronics Clearance or Side Marker Lights w/ Reflex Reflector. These are offered in both incandescent part # MC38AB for amber or part # MC38RB for red and LED part # MCL31AB for amber or part # MCL31RB for red. They have a two wire design so they are super easy to install. The white wire gets grounded and then the back wire goes to the running light circuit with butt connectors part # DW05744-5. If you need screws to attach the light...
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Robert G
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Robert G
Employee Michael H
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Michael H
Employee Jameson C
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Jameson C
Employee Adam R
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Adam R
Employee Jeffrey L
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Jeffrey L
Employee Zack K
Video Edited:
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Employee Joshua S
Video Edited:
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Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T

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