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Optronics Thinline LED Trailer Clearance or Side Marker Light - Submersible - 4 Diodes - Red Lens

Optronics Thinline LED Trailer Clearance or Side Marker Light - Submersible - 4 Diodes - Red Lens

Item # MCL75RB
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3-15/16" x 1-1/4". Waterproof, LED trailer light serves as either a side marker light or clearance light. Durable polycarbonate housing and lens. Multiple mounting options. Accepts standard 1-prong or 2-prong plugs. P2 rated. Lowest Prices for the best trailer lights from Optronics. Optronics Thinline LED Trailer Clearance or Side Marker Light - Submersible - 4 Diodes - Red Lens part number MCL75RB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (1574)
  • Q & A (15)
  • Videos (2)
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Optronics Trailer Lights - MCL75RB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Red
  • Surface Mount
  • 4L x 1W Inch
  • Submersible Lights
  • Optronics
  • Rear Clearance
  • Side Marker

3-15/16" x 1-1/4". Waterproof, LED trailer light serves as either a side marker light or clearance light. Durable polycarbonate housing and lens. Multiple mounting options. Accepts standard 1-prong or 2-prong plugs. P2 rated.


Features:

  • LED trailer light functions as a clearance light or side marker light when properly mounted
  • Thinline Series has a low profile so that light can fit in tight spaces
  • Sonically sealed, waterproof housing and lens unit is submersible
  • 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 polycarbonate housing and lens
  • Red lens over white LEDs
  • Compatible with 12V DC systems
  • Multiple mounting options
    • Surface mount with open-back or self-grounding bracket (sold separately)
  • Accepts industry standard 1-prong and 2-prong plugs
  • P2 rated


Specs:

  • Dimensions: 3-15/16" long x 1-1/4" tall x 7/8" deep
  • Mounting holes: 3" apart on center
  • Diodes: 4
  • Power draw at 12.8V: 0.06 amps
  • Lifetime warranty on LEDs


Manufacturer Cross Reference
Light will work as an exact replacement for:
Truck Lite # 19250R
Grote # 47492


Optronics Thinline MCL75 Series Red LED Marker Clearance Light Dimensions

Sonically Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.


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.



MCL75RB Optronics Thinline LED Clearance or Side Marker Trailer Light - Submersible - 4 Diodes - Rectangle - Red Lens - P2 Rated

Alternate part number: MCL-75RB




California residents: click here


Video of Optronics Thinline LED Trailer Clearance or Side Marker Light - Submersible - 4 Diodes - Red Lens

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Optronics Sealed Thin Line LED Trailer Clearance Light Installation

Today, on this enclosed trailer, we'll be replacing one of our side marker lights. We'll be installing the new Optronics Thin Line Side Marker Light, red in color, part number MCL75RB. Now, to replace it, we'll first need to remove the old side marker light. To do that, using a flat plated screwdriver, we'll simple pry out on the locking tab to release one side of the light and then remove the whole thing. Once we remove the whole thing, we'll then go ahead and take the new Optronics four-dioed Red clearance light, line up the two electrical tabs with the mount that is secured to the trailer, and snap the new light in place. Now, we're ready to hit the road. That does it for the install of the Optronics think line LED side marker clearance light, part number MCL75RB. .


Customer Reviews

Optronics Thinline LED Trailer Clearance or Side Marker Light - Submersible - 4 Diodes - Red Lens - MCL75RB

Average Customer Rating:  4.9 out of 5 stars   (1574 Customer Reviews)

3-15/16" x 1-1/4". Waterproof, LED trailer light serves as either a side marker light or clearance light. Durable polycarbonate housing and lens. Multiple mounting options. Accepts standard 1-prong or 2-prong plugs. P2 rated.

- MCL75RB
by:

I bought the series of thin line replacement lights for my 2005 Haulmark trailer. They fit and worked perfectly, are as visible as the originals (with restored color as well - the old ones were sun-faded) while drawing much less power. Now the 5 amp fuse that most cars have for a tail light will safely run all of the tail, clearance, and interior lights on the trailer without blowing the fuse. The first time I plugged in the trailer with the original lights it blew the fuse (without even the interior lights on). Buying these lights was the perfect solution. Now any flat 4-wire plug on any car can be used to operate the trailer. 109589



- MCL75RB
by:

Replacement trailer marker lights seem to be good. Don't know for sure as we only use the trailer occasionally. 691599



- MCL75RB
by:

Your website is outstanding, and everyone was very helpful, from contacting you by email to make sure that this would be the right product for my 2002 Trails West Sierra gooseneck weekender horse trailer and by phone to place my order. Thank you again! 489256



- MCL75RB
by:

Easy install. I bought all new LED lights for my Haulmark trailer and was ready for the road in minutes. Thanks! 206887


Comments
Great Products at a great price. My local store wanted to charge me more than twice the price I was able to purchase from you.I will purchase from your company within the next two months. I have additional lighting requirements for my trailer.
Mr. S - 07/27/2016

19694

- MCL75RB
by:

I am retired for one year as of now and was involved in trucking for all my working years. I have used etrailer for lights , wiring ,trailer items ect... I now have a class a diesel pusher and have gone all LED inside and out and etrailer has had everything I needed and it all worked without any problems. I will use them for all my trailer and electrical needs in the future. 329454


Comments
I installed these lights on our 40 ft motor coach and have put on over 40 thousand miles since install. I drive with the lights on all the time day and nite and they still work with no issues. Thank you
Richard H - 01/02/2018

32495

- MCL75RB
by:

Website is definitely user friendly. The process of finding the correct part from beginning to end is easy and stress free. 696907



- MCL75RB
by:

Great lights. Look good, easy to insta ll. 692709



- MCL75RB
by:

The items I ordered came quickly after I placed the order. Replacing the old lights with the new LED lights was easy and it made a big difference in making the trailer easier to see not only at night but seeing the brake lights in the daylight hours. The roof hatch was a easy replacement for the original one. I know the metal one won’t crack and break like the plastic one that was original equipment. After investing in a trailer to haul the hot rod that has taken years to build, make sure the other guy that’s not paying attention can see you and your investment 682931



- MCL75RB
by:

Nice sealed led slimline light. 677707



- MCL75RB
by:

Poor/incomplete product description. These are obviously replacement lamps for some type of fixture. These are not meant to stand alone with wire pigtails that you can use to replace existing trailer lights. I'll have to return these now. 672633


Comments
As mentioned in the product description above, the lamps are mounted using the pigtails and surface or grommet mounts which are sold separately. These items arent included because the mount and pigtail needed will depend on how youre mounting the lamp.
-- Mike L - 07/22/2019

58089

- MCL75RB
by:

These are tons better than the 9 year old leds I had. 671526



- MCL75RB
by:

Nice product, replacing all the lights on my horse trailer with LED 's ~ big difference,they are so bright. Love them. Easy installation ~ did it in about 15 minutes. Have stop lights coming ~ placed 2 orders. 671109



- MCL75RB
by:

What I ordered. Got it quick. Keep up the good work. 663163



- MCL75RB
by:

As expected. Delivery was quick and so far they work as they should. 662576



- MCL75RB
by:

Product was as described and fit well on my trailer. 650101



- MCL75RB
by:

Lights look Great, replaced burnt out and faded marker lights on my HaulMark Trailer. Took old ones off, cleaned base and connection points, added Dielectric grease to contact pins to seal out moisture and corrosion. Snapped right in, job done. 612649



- MCL75RB
by:

E-Trailer has everything that is needed for repair and accessories to make the job easier and get my trailer back on the road 591614



- MCL75RB
by:

Great company to do business with. Ordered several light related products, marker lights , marker light bases, utility lights and LED replacement bulbs. Order was processed quickly and delivered sooner than promised. You should definitely keep them in your favorites list for trailer maintenance items! 577755



- MCL75RB
by:

Lights are still working ! Thanks etrailer for the great service and fair prices. 570899



- MCL75RB
by:

thank you for the prompt service and the website was so easily navigated. I found what I needed right away! good job. 568799



- MCL75RB
by:

This is perfect for securing my UTV inside my enclosed trailer. Fast shipping great service once again 568594



- MCL75RB
by:

Exact replacement 565018



- MCL75RB
by:

works great. perfect fit thanks! 561838



- MCL75RB
by:

Excellent all around! 549148



- MCL75RB
by:

I am very happy with these trailer marker lights. they were a direct replacement for the original ones that came with the trailer. I would purchase them again. 548333


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Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • What Brackets Are Used To Mount The Sealed, Thin Line LED Trailer Clearance Light Part # MCL75RB
    The correct mounting bracket for the Sealed, Thin Line LED Trailer Clearance part # MCL75RB is the Single Wire Plug for Thin Line Series Trailer Clearance and Side Marker Lights part # A65PB for black and part # A67CB for chrome.
    view full answer...
  • Replacement LED Clearance Lights for 2000 Sundowner Trailer
    The Sealed, Thin Line LED Trailer Clearance, Side Marker Light, 4 Diode - Red # MCL75RB will mount to your 2000 Sundowner as long as the base it connects to is 4-1/16" L x 1-1/16" W x 1/2" D. If you need to replace that bracket, I recommend the Black Bracket and Single Wire Plug for Thin Line Series Trailer Clearance and Side Marker Lights # A65PB or chrome # A67CB. We don't have a spec sheet of each trailer, but you can definitely make these work and the dimensions should help you...
    view full answer...
  • Can I Use Optronics LED Light # MCL75RB in the Same Base as Light # MC65RB
    Yes, both the Optronics lights # MC65RB and MCL75RB use the same mounting base, so the # MCL75RB lights will snap into your old bases. You will then need to wire in the lights, with a power and ground connection. Part # MCL75RB is a sealed LED light light and will burn brighter but draw less power than part # MC65RB. Both lights use either base # A65PB or # A67CB. See the video that I shot showing both lights.
    view full answer...
  • Clearance Light Replacement Recommendation for TruckLite Model 19
    I looked up your TruckLite Model 19 and the Sealed, Thin Line LED Trailer Clearance, Side Marker Light # MCL75RB is a match for what you have and would be exactly what you would need. For amber you'd need the part # MCL75AB.
    view full answer...
  • How Does the Optronics Light # MCL75RB Install on a Two Wire Lighting System
    When installing the Optronics Sealed, Thin Line LED Light, # MCL75RB, you will use the # A65PB Bracket for Single Wire Thin Line Light. The bracket has a black wire that the power wire on your trailer will connect. The light will ground to the trailer through the light bracket. If you are mounting to a steel frame then you will not need to install the trailers ground wire.
    view full answer...
  • Diameter Fasteners to Use to Install Clearance Light MCL75RB
    The mounting hole diameters of the install bracket # A65PB for the Thinline light part # MCL75RB are 3/16 inch in diameter. 1/8 inch diameter screws or rivets would work well. Aluminum isn't going to be as strong as steel but if the light assembly is pretty lightweight so it would still be held on securely with a aluminum screws or rivets.
    view full answer...
  • Can Optronics Thin Line LED Trailer Clearance Lights Fit Base Of Lights On Snowmobile Trailer
    I was not able to find the truck Lite 2303 or 2294 lights on their website. You may want to consider replacing most if not all of the incandescent lights on your snowmobile trailer. Since LEDs draw about 1/10 of the power, you can certainly get the draw down a lot more than what you are doing now. We do not have a converter box for a 10-amp load as you described. The # MCL75RB and # MCL75AB lights measure 3-15/16 inches L x 1-1/4 inches W x 7/8 inch D. and require the black base,...
    view full answer...
  • How Does the Optronics Clearance Light # MCL75RB Mount to a Trailer
    For a mounting bracket for the Optronics Trailer Light # MCL75RB that you referenced you would want an Optronics Black Mounting Bracket # A65PB. How it will mount will depend on your trailer, but basically you will need to use a screw or bolt with a diameter less than 1/4 inches to attach it to the surface of your trailer. The mounting holes are 3 inches apart on center. Grounding the light circuit through the mounting bracket should not cause a short circuit. Just make sure the metal...
    view full answer...
  • Height of the Thin Line LED Trailer Clearance Light # MCL75RB When Installed in Mounting Bracket
    The Thin Line LED Trailer Clearance Light # MCL75RB is 7/8 inch deep and the install bracket part # A65B would add 1/4 inch of depth to the overall height of the light setup. That means that overall it would 1-1/8 inches tall.
    view full answer...
  • Lights for a 7 Foot x 10 Foot Cargo Trailer
    It is imperative you check your local laws for lighting requirements in regards to your specific trailer, though I can tell you you no matter what you'll need stop lights, tail lights, turn signals and reflectors. There are other factors, including your trailer's GVWR that you need to take into consideration; I have added a link to a help article on trailer lighting requirements which I highly recommend checking out. That said, a 7' wide x 10' long cargo trailer is almost certain to...
    view full answer...
  • Which is Brighter? The Optronics Light # MCL65RB or # MCL75RB
    The Optronics Trailer Lights # MCL75RB would be brighter than the Optronics Trailer Lights # MCL65RB as it has 4 LEDs and the # MCL65RB only has 3. The # MCL75RB actually draws 0.06 amps at 12.8 volts. Check out the review videos I attached for each light.
    view full answer...
  • Trailer Clearance Light Replacement
    Those part numbers are for trailer clearance lights, and the main difference between 1a-v-1240R and 1a-v-1260r is that the 1240R is a led light, and the 1260r is a incandescent light. Both lights have red lenses and are 3 7/8 inches long, by 1 1/4 inch wide. We do have replacement lights that will work in both styles. For an led red marker light you can use Optronics Thinline LED Trailer Clearance or Side Marker Light # MCL75RB. For an incandescent light use Optronics Incandescent...
    view full answer...
  • Replacing Optronics Thin Line Incandescent Trailer Light with Thin Line LED Trailer Light
    You are exactly right. Changing out your # MC65RB incandescent lights for new # MCL75RB lights will simply require removing the existing light and snapping a new light into the same housing. Both of these lights use the # A65PB bracket. If any of the brackets on your trailer need replaced you can use the # A65PB as a replacement, but the LED lights will not require any different base than the incandescent lights. I have attached an installation video of the # MCL75RB light for you.
    view full answer...
  • Base Recommendation for the LED Clearance Light MCL75RB
    The black base that the part # MCL75RB attaches to is part # A65PB.
    view full answer...
  • Does Optronics Side Marker Light # MCL63RB have to be Mounted a Specific Way
    Lights that have to be mounted in a specific orientation will have TOP printed on them somewhere which I do not see on light # MCL63RB. The lens is designed to direct the light straight outward so that is likely why it is harder to see them if they are mounted high and you are close to the trailer. A lens design like that found on # MCL75RB would be a little easier to see at steeper angles. I have included a help article on trailer lighting requirements for you.
    view full answer...

Do you have a question about this Trailer Light?




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Info for this part was:

Video by:
Andrew K
Video Edited:
Patrick B
Video Edited:
Chad S
Expert Research:
Reno H
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Installed by:
Nicholas E
Updated by:
Sarah W
Updated by:
Brian T

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