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LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - 3 Diodes - White Base - Red Lens

LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - 3 Diodes - White Base - Red Lens

Item # MCL32RB
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MCL32RB - LED Light Optronics Trailer Lights
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4" x 2" Rectangle. LED trailer light functions as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing with white base. Surface mount - hardware not included. 2-Wire design. P2 rated. Great Prices for the best trailer lights from Optronics. LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - 3 Diodes - White Base - Red Lens part number MCL32RB can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (304)
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  • Why etrailer?

Optronics Trailer Lights - MCL32RB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Red
  • 4L x 2W Inch
  • Surface Mount
  • Rear Clearance
  • Side Marker
  • Non-Submersible Lights
  • Optronics

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


  • LED trailer light functions as a clearance 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 white ABS housing and acrylic lens
  • Red lens over white LEDs
  • Compatible with 12V DC systems
  • Surface mount to trailer - hardware not included
  • 2-Wire pigtail with power lead and ground wire
  • DOT compliant
  • P2 rated


  • Dimensions: 4" long x 2" tall x 1" deep
  • Distance between mounting holes (center on center): 3"
  • Diodes: 3
  • Power draw at 12.8V: 0.06 amps
  • Lifetime warranty on LEDs

MCL32 Series Dimensions

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.

MCL32RB Optronics LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - 3 Diodes - White Base - Red Lens - P2 Rated

Alternate part number: MCL-32RB

California residents: click here

Customer Satisfaction Score:

Customer Reviews

LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - 3 Diodes - White Base - Red Lens - MCL32RB

Average Customer Rating:  4.8 out of 5 stars   (304 Customer Reviews)

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


I am sure the product is of average quality, however when you purchase multiple items from etrailer (some of substantial weight) and they box everything together without any packing materials to keep fragile items safe, the comfort and likeness of purchasing items through this retailer drops. Brought this up with their customer service, and they said it was packed properly.


Well, they are just lights – amber and red. But, I upgraded all my trailer lights to LED’s, and these continue to look and function great.


Exactly what we needed! The light showed up, fit perfectly. I was floored that etrailer then followed up with us one year later to be sure we were still satisfied! Amazing customer service!


Replaced burned out incandescent clearance light with LED. Been doing that with all my incandescent lights as they fail. Worked great and fantastic price. Wiring info on the etrailer web site also helpful. This was the closest match to the originals.


These are described as incandescent, but what I received are LED.
Due to the wiring on my older RV, LED will not work without a wiring change, which I am unable to do at this time. Please send me the incandescent marker lights.


Very nice light and reasonably priced.If you use gaskets order them. Emailer is a great company and very efficient.


Exactly what I needed. Replaced broken incandescent marker light on my 5th wheel. Easily connected to existing wires.


This is a replacement for the old incandescent tail-lights on my garden tractor. They work very well.


Part is a perfect replacement.


Great! Exact replacement but led.


Orders are completed and delivered very timely


This is my second order of these lights. The first order was a test to see if I like the way they look to replace my old cracked and dirty incandescent lights. Once I put the new lights on my trailer, I knew I had to replace all of my lights because they look so great! They make my old 1999 Jayco look like new!


Exactly what I needed,fast shipping, kept me informed of progress of order.


Easy to install and are bright enough to be seen during daylight hours.


Very quick delivery of everything order ed!


Perfect fit as a replacment


All products were excellent Quality


Nice size light to mount on 2" angle iron that I'm making a light bar to mount on the rear and top of my pickup bed. I'll be using the light bar while towing the pickup behind my motorhome this winter. I am using 2 of the these lights in the center of the light bar. I'll have 2 larger lights with brake and turn signals on each end of the light bar.

The lights mounted easily and were the right size plus they were bright!!!
erniet - 10/14/2018


Bright little S.O.B. And should do the trick for my grounding problem. I needed room behind the light to screw the ground wire to the skin of the R.V. Since all I have is one hot wire coming out for placement of the lights.
Was told the gap behind the light was 3/8 of an inch but its more like 1/4 inch but should be enough room for a flat head screw with a wire under it.
Will use silicon to seal the screw and wire to keep it from rusting, the problem I had with the old lights using the mounting screw to ground the lights to the skin of the R.V.
Time will tell if all works out?? As planned.

Good, no problems
Donald - 11/05/2018


I replaced 3 incandescent lights in the center rear top with the led's. The new ones fit the same holes and worked great. Not sure how bright they are as I have not checked at night. If I replace the others I will order the 10 led's for the side marker lights instead of the 3.

Just like the Energizer Bunny. Still going.
wayne h - 03/19/2018


Great prices ! ,fantastic service,fast shipping = 100% satisfaction! :-) thanks


I purchased trailer lighting for my flatbed trailer. Very satisfied with the parts and the service I received. Will use you again when the need arises.


These are very good lights. Durable and easy to replace OEM lights.

Thanks for the DYI Quality supplies


it does exactly what you would expect. nothing less - nothing more.


Great product and fast service

Baltazar C - 01/26/2021

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

  • Will Trailer Clearance Light w/ Reflex Reflector - LED # MCL32RB Replace Bargman 59 Light
    Yes, the Trailer Clearance or Side Marker Light w/ Reflex Reflector - LED # MCL32RB that you referenced would be a direct replacement for a Bargman 59 series trailer taillight.
    view full answer...
  • What are Small Lights on Trailer that Are Found on Sides and Corners of Trailer
    Those are called clearance lights. They come on when the headlights/running lights are engaged and give the trailer a bit more visibility when the lighting is low. I attached a link to a page that has all of our clearance lights plus an article that covers trailer lighting requirements based on size.
    view full answer...
  • Replacement Clearance Light for Escape Trailer
    Thanks for the photos and it looks like you have found exactly what you need with the LED Trailer Clearance or Side Marker Light # MCL32RB. This light measures 2 inches tall (and 4 inches long), which is what it looks like yours measures, and it has mounting holes that are 3 inches apart on center, which I'm guessing is what you got when you measured that. This light will work well as a replacement for you. I've added a link to a video review as well.
    view full answer...
    Image 1 for Image 2 for
  • How To Identify Trailer Marker Clearance Lamp to Find Correct Replacement
    Are you speaking of a clearance/marker light? If so, the numbers you provided state that the lamp's lens is compliant with certain DOT regualations, but isn't necessarily an identifier that would help in finding a correct replacement. I'd recommend checking the lamp housing itself, and examine it closely for a part number. If I can get the actual part number of the lamp itself, or a photo with dimensions I can recommend a replacement lens or lamp if a lens isn't available. The # MCL32RB...
    view full answer...
    Image 1 for
  • Optronics LED Trailer Clearance or Side Marker Light With Black Base
    If you don't like the white base of the LED Trailer Clearance or Side Marker Light # MCL32RB we do have the exact same light with a black base: - LED Trailer Clearance or Side Marker Light with Reflex Reflector - 3 Diodes - Black Base - Red Lens # MCL32RBB I have added a link to a video review for you to check out as well.
    view full answer...
  • Is the LED Trailer Clearance or Side Marker Light MCL32AB Offered In Red
    The LED Trailer Clearance or Side Marker Light is offered in both amber as part # MCL32AB and red as part # MCL32RB. These are a pretty standard design so they are a common replacement for both older and newer trailers. Simply attach the power and ground wire at the rear, pop-off the lens, secure the base, then re-secure the lens and you're done.
    view full answer...
  • 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...
    view full answer...
    Image 1 for
  • Replacement Lens for Red Clearance Light on 2017 Forest River R-Pod Travel Trailer
    The LED Trailer Clearance or Side Marker Light w/ Reflex Reflector - 3 Diodes - White Base - Red Lens # MCL32RB does have just the lens available as part # A32RB. If that is your light, you will be able to just swap the lens. I've linked the page to all our options to assist if you have a different size or style light.
    view full answer...
  • Recommendation for Durable LED Clearance Light for Utility Trailer
    We do have a large selection of LED clearance lights available that closely match the dimensions you provided for your existing assemblies. I have attached a couple links that will take you directly to this selection that you can look through. In general, LED tail lights will indeed be a bit more durable than standard incandescents just because they use diodes instead of the more fragile bulbs and filaments inside the assembly. They will certainly be able to handle more shock and vibration...
    view full answer...
  • LED Replacement Trailer Lights for Optronics 20327-02
    We have exactly what you need directly from Optronics. You can get them with either a white base or a black base depending on what you need to match your trailer. White Base Red - # MCL32RB Amber - # MCL32ATB Black Base Red - # MCL32RBB Amber - # MCL32ABB Attached are some review videos for you to check out.
    view full answer...
  • Looking for Replacement Lens for Fruehauf # LCE-8750 Clearance Lamp
    We don't offer a replacement lens for a Fruehauf LCE-8750, but we do offer a equivalent lamp from Optronics, part # MCL32RB for the LED version or # MC32RB for the incandescent. We do offer a replacement lens for the incandescent version, which is part # A32RB. I can state with certainty that the replacement lens will fit the Optronics lamp, but since they're different manufacturers, I can't guarantee that the replacement lens will fit your existing LCE-8750 lamp. You can gamble that...
    view full answer...
  • Replacement Lens for Optronics MC32 and MCL32 Series Lights
    You aren't missing anything, no; the Replacement Red Lens for Optronics MC32RB and MCL32RB Trailer Lights # A32RB is exactly what you need as a replacement lens for either the Optronics Trailer Clearance or Side Marker Light # MC32RB (Incandescent) or # MCL32RB (LED). This is the correct lens, though it will snap on so it will be somewhat tight; using a smidgen of force will snap it on.
    view full answer...
  • Does the Clearance Light # MCL32AB and the # MCL32RB Have Gaskets
    The part # MCL32AB and the # MCL32RB do not come with gaskets. But you could use sealant like part # 0160297 to make one if you needed.
    view full answer...
  • Replacement Lens for Optronics MC32RB Clearance/Marker Light
    The replacement red lens for the Optronics # MCL32RB and # MC32RB clearance/marker light is part # A32RB which is the red version of the # A32AB lens you mentioned.
    view full answer...
  • Replacement Light for Optronics Red Clearance Light 20327-02
    Optronics discontinued their light model 20327-02 some years back and we no longer have lens or base parts for it. You can instead use part # MC32RB for an incandescent light or part # MCL32RB for a high-efficiency LED type. Both have a white base.
    view full answer...
    Image 1 for
  • Replacement Clearance Lights Options For a 1991 Newmar American Star 25RK 5TH Wheel RV Camper
    Yes, we do have these lights available in both incandescent or LED. The lights will all have a white base and the lights have an overall size of 4" long by 2" wide and 1" deep. Incandescent Amber Lens # MC32AB Incandescent Red Lens # MC32RB LED Amber Lens # MCL32AB LED Red Lens # MCL32RB Amber Replacement Lens # A32AB Red Replacement Lens # A32RB I recommend getting a couple spare lenses in the event one of them becomes damaged while driving.
    view full answer...
  • Recommended Marker Light For Fenders On 1999 Pace Worksport
    I don't have the specs for your specific light as manufacturers constantly change lights, but I can make a recommendation for you to replace what was ripped out. I see two different colors online, so I'll give you an option for an amber light and a red light. For an amber light, I recommend the Trailer Clearance or Side Marker Light w/ Reflex Reflector - Rectangle - Amber Lens - White Base, # MC32AB. This light is 4 long x 2 tall x 1-1/8 inches deep. It is a surface mount with a twist-in...
    view full answer...
  • Red Lens Replacement Sae-a-p2-dot-14 For A 2018 Keystone Camper
    The Replacement Amber Lens for MC32AB Trailer Lights # A32AB is a direct replacement for the Sae-a-p2-dot-14 that measures 4" L x 2" W x 1/2" H. A red lens replacement with the same dimensions is the LED Trailer Clearance or Side Marker Light w/ Reflex Reflector # MCL32RB. Included are video resources with more information from here.
    view full answer...
  • Installing LED Clearance Lights With 2 Wires
    Two-wire LED clearance lights such as the Red # MCL32RB or the Amber # MCL44AB have one wire for the power lead and one ground wire. The wire that was attached to your old clearance lights will be spliced to the power wire of your new lights. The black is power and white is ground for these lights. If you take a look at the video I have linked you can see how these lights are installed. I have also attached a couple of links to help articles on trailer wiring which you should find useful.
    view full answer...
  • Recommended Trailer Lights with Built-In Reflector
    The Optronics trailer light assemblies referenced in your question do not feature built-in reflectors. If needed on your trailer, they will just need to be added separately with these lights installed. For a similar red clearance light that features a built-in reflector, I recommend the Optronics # MCL32RB and for an amber lens you can use # MCL32AB. For a red and white LED tail light, the Bargman Triple Tail Light # 47-84-009 will be a good option. I have attached a few short video...
    view full answer...
  • Can Too Many LED Trailer Lights Make Them Dim
    Yes, too many lights, be it tail lights like the Optronics FLEET Count LED Backup Light for Truck or Trailer # BUL12CFB or clearance lights like the LED Trailer Clearance or Side Marker Light # MCL32RB can make them dim. That said, LED lights are far less likely to do that, as they draw much less power; for example, the FLEET backup light only draws 0.260 amps, and the LED clearance only draws 0.06 amps, so you'll simply need to ensure you don't overload it based on whatever your converter...
    view full answer...
  • Replacement LED Marker Lights for a 2009 Timberlodge Camper
    Thanks for providing the picture. It looks like your current marker light is around 3 3/4" long and 1 1/2"- 2" wide and has mounting holes 3" apart. While we don't have anything in those exact dimensions, we do have several that are slightly larger so when you replace yours you will be able to completely cover the space the old lights used to be. I am slightly concerned about the width of your current light and how it fits in the groves on the side of your camper. I am going to recommend...
    view full answer...
    Image 1 for
  • Can Low Profile Trailer Taillight RVSTLB61 Install on Left and Right Side of Trailer
    Yes, you could install two of the trailer taillights # RVSTLB61 at the rear of a vehicle like you are wanting. One can install on either side. The only difference between this and the # RVSTLB60 is the license plate bracket.
    view full answer...
  • Availability of Gasket for Marker Lights on Motorhome
    There is not specific gasket made for either the # 47-59-001 or the # MCL32RB trailer clearance lights but I do have a solution for you. I've attached an installation video that shows our installer using the TremPro Silicone Sealant # 0160297. This will create a waterproof seal or gasket for your new lights. The gasket that may work for you, but is designed for the MC series lights is # A32GB. This gasket was designed to fit 4 inch by 2 inch lights. I have linked the above mentioned...
    view full answer...

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