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Thinline LED Trailer Clearance or Side Marker Light w/ Bracket - Submersible - 3 Diodes - Red Lens
Optronics

Thinline LED Trailer Clearance or Side Marker Light w/ Bracket - Submersible - 3 Diodes - Red Lens

Part Number: MCL67RB
In Stock
$25.73
Trailer Lights
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In Use/Installed

4-1/8" x 1-1/4" Rectangle. Waterproof, LED trailer light serves as either a clearance or side marker light. Durable polycarbonate housing and lens. Surface mount with bracket. Single wire grounds through mounting hardware. P2 rated. Great Prices for the best trailer lights from Optronics. Thinline LED Trailer Clearance or Side Marker Light w/ Bracket - Submersible - 3 Diodes - Red Lens part number MCL67RB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (2630)
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Optronics Trailer Lights - MCL67RB

Highlights

  • Reliable In Any Weather: Sonically sealed housing keeps water out so LEDs stay protected and bright.
  • Fewer Replacements Needed: Long-lasting LEDs use less power and have no filaments to break.
  • Slim Fit Anywhere: Thinline 4-1/8" x 1-1/4" design mounts easily in tight spaces.
  • Simple Setup: Single-wire design grounds through mounting hardware for quick install.
  • One Light, Two Uses: Works as a clearance or side marker light when properly mounted.
  • Built to Last: Durable polycarbonate lens and housing stand up to vibration and road wear.

Features to know about

Long Nights and Dim Bulbs: Bright, Efficient LED Light That Lasts

No more swapping burnt-out bulbs or dealing with weak illumination. This Thinline LED clearance or side marker light uses 3 red diodes that produce a bright, consistent glow while drawing only 0.048 amps at 12.8V. The LEDs last up to 50 times longer than incandescent lights and don’t rely on fragile filaments. That means stronger light, less power draw, and no bulb changes down the road.

Tight Spaces and Clean Installs: Slim, Surface-Mount Design

When space is limited, the low-profile Thinline design fits where bulkier lights won’t. Measuring just 4-1/8" long by 1-1/4" tall by 1-3/16" deep, it mounts flat against the surface using the included black bracket. The holes are spaced 3" center-to-center for a simple install on most flat surfaces. The single-wire setup grounds through the mounting hardware, keeping your wiring neat and easy.

Water Exposure and Corrosion: Fully Sealed, Submersible Build

This light is built to take on wet conditions without worry. The polycarbonate housing and lens are sonically sealed into one waterproof unit that’s fully submersible. No water sneaks in to corrode connections or damage the diodes, so it’s reliable even after repeated dunking or heavy rain.

Visibility and Compliance: P2-Rated Beam Coverage

For safety and proper signaling, this P2-rated light provides 90 degrees of total beam spread—45 degrees to each side of centerline. Mounted correctly, it functions as either a clearance light or a side marker light. That focused coverage ensures solid front or rear visibility so others can clearly see your trailer in low light.

Built Tough for Everyday Use: Durable Polycarbonate Housing

The polycarbonate lens and housing stand up to bumps, vibration, and weather exposure. It’s tough enough for long-term use without cracking or fading, keeping your trailer lighting sharp and dependable every time you hit the road.

Specs

Dimensions

  • Overall length: 4-1/8"
  • Overall height: 1-1/4"
  • Overall depth: 1-3/16"
  • Distance between mounting holes (center on center): 3"

Technical dimension diagram of Optronics MCL67RB Thinline LED trailer clearance and side marker light showing measurements for length, height, depth, and mounting hole spacing.

Electrical

  • Power draw at 12.8V: 0.048 amps
  • Diodes: 3

Warranty

  • Lifetime warranty on LEDs

Installation

Installation diagram showing how to surface mount a trailer light using a flange or bracket with mounting holes and wiring connection.

MCL67RB Optronics Thinline LED Trailer Clearance or Side Marker Light w/ Black Bracket - Submersible - 3 Diodes - Rectangle - Red Lens - P2 Rated





Customer Satisfaction Score:

Ratings & Reviews

4.8

2629 reviews
5 Stars
(2357)
4 Stars
(188)
3 Stars
(38)
2 Stars
(18)
1 Star
(28)
Review sort icon
4-1/8" x 1-1/4" Rectangle. Waterproof, LED trailer light serves as either a clearance or side marker light. Durable polycarbonate housing and lens. Surface mount with bracket. Single wire grounds through mounting hardware. P2 rated.

by:

The light is working great . Will do buisness with your company again when time calls for it.



by:

They are just what I neede



by:

It works lime its supposed to. Ga e it a lower rating because the housing on 3 out of 7 were cracked when I opened them. Didn't have to time go through all the BS with return and waiting for new ones, they all work bit for how long Idk.



by:

Product was as advertised, quick shipping and good price.
Thank you!



by:

Used this product to upgrade from incandesent to led lights. Everything went well and worked great.



by:

Light was easy to install. The Led Replacement light is no longer subject to vibration like the old incandescent lamp. Great people to do business with.



by:

Even though I live in Canada these came very fast, 100% what I wanted. Would definitely recommend etrailer for all your needs.



by:

Great replacement for old faded bulb style lights



by:

Easy to use website with lots pf information. The marker lights are easy to install and are quite bright. They arrived swiftly and all work as advertised. When I need some more I shall return.



by:

Product was just as described, Sales staff was friendly and very knowledgeable about product. Shipping was safe, secure, and reasonable, great experience.



by:

Fast and efficient company to deal with. Got my trailer from them over 10 years ago and getting replacement parts are easily available.



by:

Item was good quality but shipping took a little longer then I thought it should’ve been . Would order again .



by:

good bright l.e.d. lights



by:

Great product but even better customer service. etrailer is now my go to spot for all my trailer needs.



by:

Website is easy to navigate. High quality photos allow me to compare parts and feel confident I've ordered the right one. Part was delivered a week earlier than promised!



by:

Customer Service is second to none. Prompt shipment. Great communication. A pleasure to work with. Side Marker Light was easy to install.



by:

Overhauled all my old bulb trailer lighting to leds. They are bright, clean, and no hassle installation. My trailer is used for night work so visibility matters most to me. Fast reliable sales and service.



by:

Replaced DZ part # 77-825 with these new led lights on my 1981 Avion camper. Looks and works great! Video of product mounting was very helpful in choosing these lights. One of the best websites I’ve ever come across. Thanks for the help from your team!



by:

We manufacture wiring harnesses for a trailer company as well as a light kit for them.
The light is great for our use in this kit. Light is easy to use and install.



by:

Nice product to replace the running lights on my boat trailer.

Mounting holes are close to the existing holes for the old lights.

Very bright.

LEDs should be reliable for a long time.



by:

These lights are not well made. I Cracked one base while riveting it onto my trailer, And cracked a second one when I accidentally installed a red marker where a yellow belongs.- don’t try to remove the lens once clicked into place. They light up, but that’s as much positive as I can give



by:

I had ordered two trailer lights from etrailer and although I received them quickly, one of the frames for the lights was broken when I received them. I took a picture of the broken frame and sent etrailer an email with the picture attached. In about a week to my surprise I received a new tailight in the mail. I have ordered from etrailer before and I have never had an issue, but this was completely unexpected. It is nice to know there are still businesses that put the customer first. I will gladly continue to do business with etrailer. Such a great company. Thank You.



by:

As many know it is difficult to find those electrical/lighting components, and in our case, we needed specific running lights for our horse trailer. After exhaustive searching with trailer manufacturers, we started looking to product suppliers and that is when we found etrailer.com. They had exactly what we needed and a fair price, the service was excellent, including shipping in a timely manner. I bookmarked their site so that I can go back to them for any trailer lighting needs. I gave them 5 stars because they earned it.



by:

Absolutely excellent replacement parts, received on time and in perfect shape. Replaced all the lights (clearance, fender, turn signals, stop, and utility) with much brighter leds. Took about 1 hr to clean up all the contact points and test eveything. Extremely pleased with 'like-new' lighting system! Will send photos by email...

Ed profile picture

Ed

9/3/2017

Still working perfectly. The LEDs are much brighter than the incandescents they replaced, and much more reliable -just what Ive come to expect from E-trailer ...



by:

1 year later, working flawlessly. Bright and reliable for my precious cargo in the horse trailer. Kudos to etrailer for their customer service, too.


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See what our Experts say about this Optronics Trailer Lights

  • Replacement For Peterson 150 016 Red And Amber Side Marker Lights On A 2001 Bison Horse Trailer
    Though I may have an alternative option available that will work for your 2001 Bison horse trailer, I was not able to find anything with the 150-016 number, unfortunately. With that said, check out the TecNiq Heavy Duty Bicolor Mini Fender Light - Red / Amber # TN32TR. This has the red and amber lens, which is nice. You could also go with the following lights: Optronics Thinline LED Trailer Clearance or Side Marker Light w/ Bracket - 3 Diodes - Red # MCL67RB Optronics Thinline LED Trailer...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Replacement Trailer Taillights for Peterson PM147
    The closest light we have to the Peterson PM147 you referenced is the Square LED Trailer Clearance, Side Marker Light with Reflector, Stud Mount, 6 Diode - Red # MCL36RB or the Wesbar Clearance Light-LED-Red with Reflex Lens and White Base # 47-222014. If you want a submersible light, I recommend the Thinline Trailer Clearance or Side Marker Light - LED - Submersible - 3 Diodes - Red # MCL67RB or the Peterson Piranha LED Trailer Clearance Light, 2 Diode - Red # 169R.
    view full answer...
  • Replacement Red Clearance Lights For Arrow 071 Clearance Lights
    While we do not carry the lens for your Arrow 071 clearance light we do have a Thinline LED Trailer Clearance # MCL67RB which is 4-1/8" long and 1-1/4" wide. It has mounting holes 3" on center like your current clearance lights. You will be able to use the Light # MCL65RB to replace the lens or led if they should become damaged or burn out down the road.
    view full answer...
    Image 1 for
  • LED Marker/ Clearnace Lights for Cargo Trailer
    The Optronics LED Trailer Clearance and Side Marker Light, part # MCL67RB is similar in dimension to the Bargman 99 series. The light features mounting holes that measure 3 inches apart, center-to-center, and has a power wire lead. The lamp grounds through its connection to the trailer frame. This lamp would be a great choice for side marker/ clearance lights for your enclosed trailer. Optronics also offers a light bar, part # MCL84RB which could be used for a light bar for the rear of...
    view full answer...
  • Recommended Replacement Clearance Lights With Only Wire
    It's normal for some clearance lights to ground through the mounting screw instead of running an extra wire so there's nothing wrong with that. For the amber clearance lights you can use part # MCL67AB and for the red part # MCL67RB. These both come with a single wire for power and ground the the bracket mount screw and are 4-1/8" long x 1-1/4" tall x 1-3/16" deep.
    view full answer...
    Image 1 for
  • Recommended LED Boat Trailer Light For Center Rear Marker
    The closest light we have to the Peterson PM147 you referenced is the Square LED Trailer Clearance, Side Marker Light with Reflector, Stud Mount, 6 Diode - Red # MCL36RB or the Wesbar Clearance Light-LED-Red with Reflex Lens and White Base # 47-222014. If you want a submersible light, I recommend the Thinline Trailer Clearance or Side Marker Light - LED - Submersible - 3 Diodes - Red # MCL67RB or the Peterson Piranha LED Trailer Clearance Light, 2 Diode - Red # 169R
    view full answer...
  • Availability of Optronics 67RB Clearance/Marker Lights in Red and Amber
    It sounds like you're looking for the Thinline LED Trailer Clearance or Side Marker Light with Bracket part # MCL67RB for red or part # MCL67AB for amber.
    view full answer...
  • Replacement Clearance Lights For A 1987 5th Wheel Camper
    To find the proper bulb for your 1987 5th Wheel Camper you would need to know what brand of light you currently have. For example The Replacement # 67 Bulb for Trailer Lights, License Plate Lights, and Utility Lights # 67 will replace a number 67 bulb. I would recommend getting a whole new clearance light. The Thinline LED Trailer Clearance or Side Marker Light w/ Bracket # MCL67RB is conically sealed, and has a waterproof housing and lens that makes the unit submersible. The light has...
    view full answer...
  • Can Chrome Base A67CBPG Be Used with Trailer Lights # MCL67RB and # MCL67AB
    Yes, the lights part # MCL67RB and # MCL67AB can use the chrome base part # A67CBPG that you referenced. The lights come with the black version of this base so you could easily swap it out for the chrome one if you wanted.
    view full answer...
  • Length of Wire of Thinline LED Trailer Clearance or Side Marker Light With Bracket
    Thanks for the nice words! To answer your question, the wire lead of the Thinline LED Trailer Clearance or Side Marker Light w/ Bracket - Submersible - Red Lens # MCL67RB and Amber Lens # MCL67AB is approximately 5 inches. The wire is actually attached to the bracket (which the lights plug into), the Black Bracket and Single Wire Plug # A65PB. I have added links to video reviews and an install for you to check out as well.
    view full answer...
  • Amber Trailer Light that Matches the Red Light Part # MCL67RB
    The amber light you're looking for is part # MCL67AB. Both it and part # MCL67RB measure 3-15/16 inches long, 1-1/4 inches tall, and 7/8 inches deep. I've linked videos on them both for you.
    view full answer...

Do you have a question about this Trailer Light?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Aidan B
Installed by:
Aidan B
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M
Employee Kyle M
Video by:
Kyle M

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