bing tracking image
  1. Trailer Lights
  2. Optronics
  3. Clearance Lights
  4. ID Bar
  5. Incandescent Light
  6. Red
Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent - Red Lens

Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent - Red Lens

Item # MC93RB
lowest price pledge
Our Price: $14.94
You Save: 9%
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.45 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
16" Long x 1-1/2" tall x 1-5/8" thick. Waterproof, incandescent identification light bar is designed for trucks and trailers. Durable polycarbonate housing and lens. Surface mount. 2-Wire pigtail with 50" leads. P2 Rated. Lowest Prices for the best trailer lights from Optronics. Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent - Red Lens part number MC93RB can be ordered online at or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (71)
  • Q & A (0)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MC93RB

  • Clearance Lights
  • ID Bar
  • Incandescent Light
  • Red
  • 17L x 1-1/2W Inch
  • Surface Mount
  • Rear Clearance
  • Submersible Lights
  • Optronics

16" Long x 1-1/2" tall x 1-5/8" thick. Waterproof, incandescent identification light bar is designed for trucks and trailers. Durable polycarbonate housing and lens. Surface mount. 2-Wire pigtail with 50" leads. P2 Rated.


  • Red light strip functions as identification light bar for trucks and trailers
    • Light bar has three replaceable A91RB lights attached to base
  • Sealed, waterproof housing and lens unit
  • Incandescent bulbs can be easily replaced
  • Durable polycarbonate housing and lens
  • Red lens over incandescent bulbs
  • Compatible with 12V DC systems
  • Surface mount to trailer - hardware not included
  • 2-Wire design includes 50" lead wire and ground wire
  • P2 rated


  • Dimensions: 16" long x 1-1/2" tall x 1-5/8" deep
  • Distance between mounting holes (center on center): 7-1/2"
  • Power draw at 12.8 volts: 1.0 amps
  • 3-Year warranty

Manufacturer Cross Reference
Light will work as an exact replacement for:
Truck Lite # 15745R
Grote # 49172
Peterson # 150-3R

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 circuit board is sealed, which means that water will not 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.

MC93RB Optronics Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent - Red Lens - P2 Rated

Alternate part number: MC-93RB

California residents: click here

Video of Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent - Red Lens

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

Video Transcript for Optronics Trucks and Trailer Identification Light Bar Installation

Today we're gonna take a look at the Optronics Sealed 3 Light Truck and Trailer Identification Light Bar, with the black base. Offering red lens lights. Part number is MC93RB. Now the light itself is gonna measure 16" from one end to the other. It's gonna be about an inch and 1/2 tall. And it's gonna come up off the trailer from your mounting surface about an inch and 5/8th.

And just like most of lights designed in this style, our mounting holes from center to center are gonna be 7 1/2". That should allow this light to work out in just about any application.Now the light's designed to be either a truck or a trailer identification light. Typically, these are required on trailers that are wider than 80", just to give you kind of a heads up, or so people know. I think it's a great addition on a lot of different trailers. Gives you a nice look here in the back, and just a few more lights back there to help people see what's going on.

Now each of our lenses is replaceable. You can simply remove this light out, pull the plug, put a new one in, plug it back in. So if you do happen to back into anything or one of them gets damaged, you can just replace one of the lights rather than going through and replacing the entire bar.Now the lights are completely sealed. So there's gonna be no moisture getting inside of the lens. That's a big benefit.

Trailers, you know, we drag them down the highway all the time. Moisture and stuff can try to creep in there. Or especially if you're using it on marine application, it's not something you're gonna have to worry about. The light itself offers a two wire design. So we've got one ground wire.

I attach it right underneath the stud as we put it in. That's gonna give us the ground we need. And it has a 50" lead to help run it over and make the connection to your tail light signal. Now this is designed using incandescent lights. Incandescent lights are the traditional style lights we tend to see on trailers. The rest of the lights on here we're incandescent, so we just replaced that.Another option available, part number MCL93RB, is gonna be the LED version. So if you have LED lights on your trailer, that's gonna be a better option for you, so it'll match. Or if you're completely rewiring a trailer, might be a good idea to go with LEDS, they give you a little bit more of a clean updated look. They don't draw as much power through the vehicle. And they tend to last longer. Now to mount our ID light, we've got two holes, one in between each of the outside lights here. We're gonna use this and some self tapping screws. We're just gonna use #12 self tapping screws and mount it to our trailer. These are recessed in there so you don't have to worry about the heads sticking up beyond the light.As you do this, you can see the longer lead. This is designed to help you to get over to one of your tail lights and connect to that running light circuit. So you'll want to choose, when mounting this, to either run your wire down and out, or you can make a hole in behind this. Like you see, we've got a couple extra holes here, so we're gonna try to use one of those to run our wiring through, so it'll all be in behind our light. You can see our white wire is gonna be for ground. You can also use a self tapping screw to connect that in somewhere behind the light. That's something you'll probably find easier. Just to line it up with one of your attachment point holes.And as that screw goes through, as you'll see here in a second, when we tighten that down, that's gonna make our ground for us. I'll just get one side started, so I can get all my slack out. We want it all to be hidden in behind our light there. Just like that. Now to complete our installation of our light, we just need to get our two wires connected. This is gonna be the wire coming from our tail light. We made a jumper there to make sure we had enough length. Strip both sides back, and we're gonna use part number DW05744 to make the connection. That'll be a heat shrink butt connector. It's gonna eliminate the risk of dust getting in there, holding moisture, causing rust and corrosion, which eventually leads to failure.Once we're sure we've got a good connection, then we'll shrink that down. I'm using a lighter, you can also use a heat gun or a mini torch. You just don't want to over heat it. You just want to get it warm enough where it starts shrinking. And you'll notice that that wire looks like it gets larger. And there's a little bit of that clear gel that comes out of the end, that'll indicate that you got a good seal there. We'll do the same thing on the other side. Now we've added on just a little bit of extra wire to our pigtail here. Use that same heat shrink butt connector we've used for all of our other splices.Then we're gonna add a small ring terminal onto the opposite end of that. Then we'll just make our attachment. Just like that. Now at this point, our wiring's ready for use. Something I do like to do, though, I like to start with some electrical tape here. Just kind of go all the way back so we've got just kind of a single wire here at the front rather than 5 different ones. Now to test out our installation, we're gonna use either a trailer tester, or you can simply plug it into your towing vehicle.We'll turn on our running lights. We want to check and make sure those are all working. We can do our left turn signal. We can do our brake lights. And our right turn signal. Now to test out our trailer ID lights, we can either plug it into our towing vehicle or use a trailer tester. But it should come one when you turn on the running lights. And that's gonna complete our look at the Optronics Sealed 3 Light Tuck and Trailer Identification Light Bar, part number MC93RB.

Customer Reviews

Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent - Red Lens - MC93RB

Average Customer Rating:  4.8 out of 5 stars   (71 Customer Reviews)

16" Long x 1-1/2" tall x 1-5/8" thick. Waterproof, incandescent identification light bar is designed for trucks and trailers. Durable polycarbonate housing and lens. Surface mount. 2-Wire pigtail with 50" leads. P2 Rated.


Just what i needed to replace my broken lense. fit perfectly!


Great product light bar i ordered came in two days couldnt be happier with it i will be ordering from u guys again

Thanks for asking it says alot. Customers service is a hard thing to find thanks again lights are still good
J d - 03/23/2015


fast ship love the service!


Overall okay. Would have been better if there was inserts with a screws mounts go it's just plastic and it might crack.


I've searched many auto parts stores, catalogs and on the internet for this light.The light is made well,is prewired.Was the best price.I'm replacing an old metal tri light.

The triple light has survived the long cold and deep snow here in NW New Jersey.The trailer was parked outside.Still looks good.
-- comment by: steve - 04/04/2014


Item exactly as ordered, received promptly, sealed for boat trailer, almost identical to original equipment, pre-wired and easily installed. Local retailers unable to provide same length of unit at competitive cost.

Also ordered and received a PVC grommet for my 6 1/2" oval 3 way stop-turn and running light.


Excellent product. Quick delivery. Will finish wiring the boat trailer this weekend with the harness and light kit from etrailer along with the rear light bar I just received. Highly recommend etrailer!


Had to replace the entire clearance light bar because the light clips broke off on the center light. This was an easy replacement and am hopeful that these clips won't break ;o)

Still holding up even in the harsh Colorado weather. Highly recommend.
Sandra - 10/20/2017


Replaced the original light bar with this one and was able to reuse the existing wire harness rather than splice in the one that came with the replacement. Only had to drill two holes (into aluminum - no big deal) since the old holes didn't match up.


Decent product for the price. Cheap plastic but it works as designed. Installed easily. Be sure not to pinch/scrape the wires when installing the mounting screws.

Work as designed and seem to be durable. They still work, have not faded and have been great for the price.
Dave B - 04/11/2015


Nice and bright. Was a perfect replacement for the rear of my flat bed car hauler.

Still works nice and bright. No complaints.
John - 06/13/2016


Item is great I found at a truck acc. Shop and it was the exact item for triple the price no kidding triple iam very pleased with the light and fits and works great . Thank you and I will shop with you again. Randy.

Randy S - 08/18/2015


etrailer has great prices and delivery on its merchandise. Thanks for the excellent service and I will
recommend etrailer to people I know.


Exactly like the original. Good quality. Shipped and received quickly. Easy installation.
Great service. Highly recommend etrailer.

I spent slightly more money on four items than I would have spent on just one part elsewhere.


Nice looking light , size was just right for the spacing on my top trim of my cargo trailer


I have order twice from e-trailer. Each time it was a great experience. The best thing was that they kept me in the loop on delivery. One item needed to be ordered from the manufacturer of the part. E-trailer notified me immediately of the situation and set proper expectations on delivery. It still came a few days earlier than what I was told. Great job!


Marker light ordered, fast shipping, shipped intact, GREAT price, Installed, LOOKS Great. How does it get any better. Bought from E-Trailer before, will buy again.

Thanks Gang!


Received the item fast and in perfect condition. It was an exact replacement for the part that was damaged on my trailer and therefore fit perfectly with minimal installation effort.


I was pleasantly surprised as to how quickly our item shipped. We placed an order and within 4 days we had the trailer lights. Wow! I would definitely order from e trailer again. Excellent service.


Parts were exactly as ordered at a fair price and no hassles. Thanks Etrailer for making it easy !!!


Good quality light, I especially like the fact that each lenses is replaceable. Just wish the ground pigtail was a little bit longer.


Very pleased with this light bar, blends well with my factory tail lights!!


Bought this light to replace the old one while repainting my trailer.
Good price, and fast shipping


The parts look great and i will install when the weather is warmer. These parts go on a 26 foot goose neck trailer,and will make it look new again. Thanks


All products were quality and exact to what was advertised. Your company was a great find! Thank you!

Show More Reviews

See what our Experts say about this Optronics Trailer Lights

Do you have a question about this Trailer Light?

  • Why

    At we guarantee:
  • Highest quality trailer lights for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer light information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Joe V
Installed by:
Joe V
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Andrew K
Video by:
Andrew K
Employee Zach D
Video by:
Zach D
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-636-306-4830