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

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

Part Number: MCL31RB
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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 - Red Lens part number MCL31RB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (3883)
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Optronics Trailer Lights - MCL31RB

  • Clearance Lights
  • Oval
  • LED Light
  • Red
  • 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
  • Red 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 Red 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.



MCL31RB Optronics LED Clearance or Side Marker Trailer Light w/ Reflex Reflector - 6 Diodes - Oval - Red Lens - P2 Rated

Alternate part number: MCL-31RB




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

3397 reviews
5 Stars
(2935)
4 Stars
(344)
3 Stars
(60)
2 Stars
(24)
1 Star
(34)
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.

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Very pleased with everything



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Nice quality, great visibility.



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Good quality, great visibility



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Great Lights and Super Fast Shipping



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See what our Experts say about this Optronics Trailer Lights

  • Recommended Replacement Optronics MCL31RPG Light for a 2019 Fleetwood Discovery
    Hey Craig, it looks like the closest replacement we have for your no longer available Optronics MCL31RPG is the Optronics LED Clearance or Side Marker Light w/ Reflex Reflector # MCL31RB. This light measures 4" long, 2-1/16" tall, and 1" deep, has 6 diodes, and draws 12.8V at 0.040 amps.
    view full answer...
  • 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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  • 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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  • Forest River LED Trailer Light Replacements
    For an LED version of the light you sent in a picture of you'd want the part # STL22RB with the grommet part # A70GB. I also attached an install video for this for you to check out as well. Since I am not totally sure what the other marker lights are we do have the LED part # MCL31RB which is 4 inch by 2 inch. For a standard roof vent to fit what you have currently we have the Ventline Ventadome kit part # V2094SP-30 which has a 12 volt fan in it. For interior lighting we have the...
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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.
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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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  • Replacement Red Clearance Light for 2012 Keystone Fuzion 5th Wheel Toy Hauler
    I reviewed photos of your 2012 Keystone Fuzion 5th Wheel toy hauler (one is linked) and based on those it looks like the red side light you need is Optronics Trailer Clearance or Side Marker LED Light # MCL32RB which measures 4 x 2 x 1-inch and which mounts on 3-inch centers. Other similar lights include LED model # MCL31RB and incandescent model # MC32RB. Trailer makers do not maintain specs for smaller items like lights so just check your overall light size and mounting hole spacing...
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  • Does Optronics # MC66RB Incandescent Trailer Clearance/ Side Market Lamp Include Bulbs
    The Optronics # MC66RB Trailer Clearance/Side Marker Light does indeed include bulbs. Optronics also offers a similar LED lamp, part # MCL31RB. LED lamps draw a fraction of the power of incandescent bulbs, and will last considerably longer.
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  • Replacement for Bargman 552 Oval Clearance Light
    According to my research, the Bargman 552 is an oval amber clearance light that measures 3 7/8" long x 1 7/8" wide x 7/8" tall. We do not have an exact replacement for this light but we do have something very close in the Oval LED Trailer Clearance Light part # MCL31RB for red lens and part # MCL31AB for amber lens. They measure 4" long x 2-1/16" wide x 1" tall and will be the best fit replacement we have for you. Please note that finding an exact replacement for old trailer lights can...
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  • 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.
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  • Comparing Optronics Aero Pro and Glolight Trailer Tail Lights
    There would be a noticeable difference if you had both the Aero Pro light # STL37RB and the Glolight, # STL117RB right next to each other. You would notice that the Glolight seams to actually sort of glow rather than just light up. This is due to the top and bottom bars that light up solid. Both lights are going to be plenty bright. Light # STL37RB has 23 diodes which will be very bright as you can see in the picture submitted by reviewer Becky P. She is using tail lights # STL37RB and...
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    Image 1 for
  • Mounting Instructions for Optronics # MCL31RB LED Clearance/Marker Lights
    I'm assuming that you're speaking of the Optronics # MCL31RB side marker/clearance lamps. These lamps are designed to surface mount using machine or self tapping screws as shown in the photo I've provided for you. A gasket isn't available, but using a thin bead of # 0160297 silicone to prevent water from getting behind the lamp would be an excellent idea.
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    Image 1 for
  • Color Availability of the Optronics Oval LED Trailer Clearance Lights
    Yes we sure do. In order to get the Oval LED Trailer Clearance Light in red you would want to use part # MCL31RB.
    view full answer...
  • Replacement Taillights for Trailer Taillight SAE-P2-A-72
    For an exact replacement we have the part # MCL31RB for a red taillight and part # MCL31AB for an amber light. For just lenses you'd want the part # A31AB for an amber lens and part # A31RB for a red lens.
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  • Sealing Up Gaps between Trailer Lights and Trailer Body
    What you can do is get some foam from a craft store and make a gasket for each of the lights # MCL31AB and # MCL31RB. Or you can use silicon sealant such as # 0160297 or gasket maker such as # LT37464.
    view full answer...
  • Replacement Red Clearance Light LED 4 x 2 Inches
    For your replacement clearance light, I recommend the Oval LED Trailer Clearance, Side Marker Light with Reflector, 6 Diode - Red # MCL31RB. This light is 4 inches by 2 inches and mounts on 3 inch centers as you requested. I've attached a couple videos of this light to assist.
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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.
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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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    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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  • 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...
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  • Recommended Inexpensive Backup Camera for Trailer with Mobile App
    The best inexpensive wireless backup camera we offer that uses your mobile device as the monitor is the VueSMART RV and Trailer Backup Camera part # HM34FR. This unit will mount to a clearance light usually found at the top of the trailer on the outside like the Optronics LED Clearance or Side Marker Light part # MCL31RB. If you don't have one you would just install your own and run power up from the tail lights. This makes for a pretty easy install and then all you'd do is pair the camera...
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  • LED Equivalent to Petersen Manufacturing 106A Trailer Clearance/Marker Light
    Although it's not from Petersen Manufacturing like the # 108-15A lens you'd looked at, Optronics makes an LED equivalent that we offer as part # MCL31AB for an amber lens or # MCL31RB for a red lens. Either lamp mounts on 3 inch centers, and is the same 4 x 2 size as the Petersen equivalents. You can see a video showing a typical installation by clicking the provided link.
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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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  • LED Lights Won't Work With Incandescent Clearance Marker Lights
    The issue is the different power draws from LED and incandescent lights; it can cause the LED light not to work as the voltage difference between the two hampers the connectivity. To remedy this you will need to install all LED marker or clearance lights. I couldn't find your order to determine the LED you purchased from us initially, so you will need to choose from the size you need like the 4" long x 2-1/16" tall Red Optronics LED Clearance or Side Marker Light # MCL31RB or the 2-1/2"...
    view full answer...


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