1. Trailer Lights
  2. Optronics
  3. Clearance Lights
  4. Oval
  5. Incandescent Light
  6. Red
Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Oval - Red Lens

Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Oval - Red Lens

Item # MC38RB
lowest price pledge
Our Price: $3.81
Trailer Lights
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.1 lbs
Quantity: 
In Stock
Optronics Trailer Lights - MC38RB
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

4" x 2-1/16" Oval. Incandescent trailer light serves as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing. Surface mount - hardware not included. 1-Wire design. P2 rated. Lowest Prices for the best trailer lights from Optronics. Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Oval - Red Lens part number MC38RB can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (70)
  • Q & A (10)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MC38RB

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

4" x 2-1/16" Oval. Incandescent trailer light serves as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing. Surface mount - hardware not included. 1-Wire design. P2 rated.


Features:

  • Oval trailer light functions as either a side marker or clearance light when properly mounted
  • Built-in reflex reflector removes the need for a separate reflector
  • Incandescent bulb can be easily replaced
  • Durable ABS plastic base
  • Red snap-on lens over incandescent bulb
  • Compatible with 12V DC electrical systems
  • Surface mount on trailer - hardware not included
  • Single wire design grounds through mounting hardware
  • DOT compliant
  • P2 rated


Specs:

  • Overall dimensions: 4" long x 2-1/16" tall x 1-3/16" deep
  • Distance between mounting holes (center on center): 3"
  • Bulb type: 194
  • 3-Year warranty


Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # ML2042R
Truck Lite # 26304R
Grote # 46702
Peterson # 108WR


Optronics MC38 Series Incandescent Red Marker Clearance Light 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.



MC38RB Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Oval - Red Lens - P2 Rated

Alternate part number: MC-38RB




California residents: click here



Customer Reviews

Optronics Trailer Clearance or Side Marker Light w/ Reflector - Incandescent - Oval - Red Lens - MC38RB

Average Customer Rating:  4.9 out of 5 stars   (70 Customer Reviews)

4" x 2-1/16" Oval. Incandescent trailer light serves as a clearance or side marker light when properly mounted. Built-in reflex reflector. Durable ABS housing. Surface mount - hardware not included. 1-Wire design. P2 rated.

- MC38RB
by:

just as advertised, worked right out of the box, easy to connect, no issues.



- MC38RB
by:

Bought some LED tail/turn lights, license plate, and side marker lights, and they work great and the price was right. Replacing the lousy shin-killing original ones that used to stick out from the sides of the trailer and the flimsy plastic plate mount. Etrailer is the best as usual.



- MC38RB
by:

Needed to replace broken factory units. These are a very good match and work well.



- MC38RB
by:



- MC38RB
by:

The products I bought form etrailer are superior to what I replaced on my 1988 stock trailer. The clearance lights both red and amber have a good grounding and 12v supply lugs. Solid lugs for positive connections unlike the old two piece units where the ground and positive connection fails between two cheap movable parts. I'm very happy with the quality and construction of these lights. I also ordered the 3 diode ID light bar looks good and works good. On line ordering is fast and easy and delivery was three days to the west coast which is greatly appreciated thank you everyone at etrailer you do a superb job!!



- MC38RB
by:



- MC38RB
by:

Great light, good fit.



- MC38RB
by:

I ordered this light and also some taillights. I had to amend my order and they were very helpful in doing that. Items arrive quickly and were of very high quality. Highly recommend them!



- MC38RB
by:



- MC38RB
by:

I appreciate the professionalism and integrity of the people at etrailer. In a recent order I placed I was delayed in thoroughly checking the contents of my order. I was still well within the 60 days. When I did look through the box I discovered I had not received an item. I'm thankful the company believed me and sent me the parts I had not received. I recommend etrailer and will shop with them again.



- MC38RB
by:

High quality marker light at a great price and the shipping is FAST. etrailer is a great place to shop.


Comments
Everything is going good. At times I feel as though the tail lights could be a bit brighter but they do the job and at a great price. Thanks for checking up.
Phil C - 05/26/2018



- MC38RB
by:

Just a replacement clearance light. The light was easy to install and works great. This is my 3rd purchase from etrailer.com, and I have been very happy with each purchase. If there was anything to complain about, it would be that the shipping for this little clearance light cost almost double what the light itself cost,



- MC38RB
by:

Exact replacement for existing clearance lights on my trailer, 1 wire with attachment point being the ground point. Ordering was easy and shipping was quick. Great supplier of trailer parts.



- MC38RB
by:

Great product. It was the same as 1994.easy to replace



- MC38RB
by:

A+



- MC38RB
by:

Installation went great! I am the most satisfied with how quick the shipping was and customer service was the best! I will be using these guys for all my trailer part needs



- MC38RB
by:

These are the exact lights needed for our renovation of our 1970 Kit Camper trailer. Thanks so much and for the excellent service in shipping them so FAST! I can't wait to finish this project and these lights will be perfect.



- MC38RB
by:

Just a great place to work with. They have tons of parts for trailers not made any more. Keeps my trailer in tip top working order. Fast shipping and excellent value



- MC38RB
by:

The products I received are exactly as represented on the website. They appear to be of the high quality that I have come to expect from e-trailer. I have ordered numerous things from them over the years and these were shipped promptly and received in a short period of time as is always the case when I order from e-trailer.



- MC38RB
by:

Purchased trailer lights to replace old ones. These arrived in a few days, even with the economy shipping and were exactly what I wanted.



- MC38RB
by:

I couldn't find these for my old camper in local parts stores. They were perfect fit and replaced the old parts perfectly. Work great. Thanks E-trailer!



- MC38RB
by:

The product was just what we were looking for. Put them on the trailer and sold it! :) Thanks for the outreach!



- MC38RB
by:

I bought 11 of these lights and they are what i had expected of them! They are working great and for the cheap price they are! I would by them again.


Comments
Still working great the way I wanted them!
J.D. - 06/18/2017



- MC38RB
by:

Great price and an exact fit. You couldn't ask for more service was great shipping was fast. It's a win-win. Thank you for good service and great products



- MC38RB
by:

Parts came ahead of schedule, perfect fix, easy install. Saved time vs repair and parts. I always go to etrailer for my one stop parts. Thanks


27
72
Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • How to Find Replacement Lens for Trailer Identification Light Bar
    The numbers you provided indicate that the lens meets DOT requirements, but it's unfortunately not a unique number that will help us identify the lamp in order to find a replacement lens. Many manufacturers print, stamp or sticker the number of the lamp somewhere on its housing. If you could find THAT number, it would likely help in finding your lens. If you could reply with a part number for the lamp or a photo (which would be really helpful), I'd be happy to check into it further for...
    view full answer...
    Image 1 for
  • Most Popular Replacement Clearance/Marker Lights for an Old Travel Trailer
    The most popular clearance/marker lights we offer are the Optronics Clearance or Side Marker Lights w/ Reflex Reflector. These are offered in both incandescent part # MC38AB for amber or part # MC38RB for red and LED part # MCL31AB for amber or part # MCL31RB for red. They have a two wire design so they are super easy to install. The white wire gets grounded and then the back wire goes to the running light circuit with butt connectors part # DW05744-5. If you need screws to attach the light...
    view full answer...
  • One Wire Clearance and Side Marker Light Options to Replace Lights on Horton Hauler Trailer
    We have quite a few different options for trailer clearance lights with one wire and that will ground through the mounting hardware. These lights come in various sizes and shapes. The best replacement for your trailer will depend on the size light you are wanting to replace. For a small LED clearance light that is a stud-mount, you can use the Optronics Sealed Mini Rectangular LED Stud Mount Trailer Clearance Light. For an amber light you will want # MCL95AB and for a red light # MCL95RB....
    view full answer...
  • Finding Replacement Lens for Command SAE-AP2-91 Light on Jayco Camper
    The SAE number found on the existing lens for your Jayco popup camper refers to the lens/light rating and not to the actual part number. I recommend measuring the dimensions of the clearance light you have and then try to find the best possible match for a replacement lens. The Bargman Clearance Light Replacement Lens # 34-59-010 referenced in your question is 4 inches in length x 2 inches wide x 5/8 inches in height. For an oval shape with similar dimensions, I recommend looking at...
    view full answer...
  • Finding the Correct Replacement Tail Light Lens for a 2004 Fleetwood Sequoia Pop Up Camper
    You will need to pull a light housing and look for any identification that will tell you the manufacturer and model number. With that information I can determine if there is a replacement that will fit. Otherwise you will have to go by the measurements. Lens # A38RB that you referenced fits light # MC38RB. This light measures 4 inches long, 2-1/16 inches tall, and 1-5/32 inches deep. The # A32RB that you have already tried will fit light # MC32RB which measures 4 inches long, 2 inches...
    view full answer...
  • Replacement Marker Lights for 1997 Sundowner Horse Trailer
    If you are looking to replace the entire marker light, I have located lights that will work as an exact replacements for the PM-108-15. Oval Side Marker Light with Reflector - Red, # MC38RB Oval Side Marker Light with Reflector - Amber, # MC38AB These marker lights have one bulb. If you are just needing the replacement lens, the red lens is part # 108-15R and amber lens, # 108-15A.
    view full answer...
  • Red and Amber Clearance Replacement Lights for Signal Strat 77-557
    From what I could find online it looks like your Signal Stat 77-557 side markers are 4 x 2. We have some options from Optronics for you that have replacement bulbs and lens available. For Amber # MC38AB - Replacement Lens is # A38AB For Red # MC38RB - Replacement Lens is # A38RB They both use the same replacement light bulb which can be found on our site using part # A194B.
    view full answer...
  • Replacement Lens for Peterson Trailer Light 106R
    I pulled up pictures of the Peterson Light part 106R and was able to determine that the part # 108-15R would fit it as a replacement lens. For an Optronics equivalent for the entire light you would need the part # MC38RB.
    view full answer...
  • Replacement Lens for Peterson F108WA Lights
    Yes, the Replacement Lens for Peterson F108WA Lights is offered in both red part # 108-15R and amber part # 108-15A. For the complete assembly you will want to use the Oval Trailer Clearance, Side Marker Light with Reflector part # MC38RB for red and part # MC38AB for amber. I have attached a review and installation video of these lights for you.
    view full answer...
  • Are 4" Oval Peterson and Optronics Clearance Lights the Same Dimensions
    They are not the exact same shape but they basically have the same dimensions with the differences being within 1/16" of each other (which could be the difference between manufacturer's preference for measurements). For the amber version of the Peterson Light # 423000 you need part # 422800 and for the red version of the Optronics Light # MC38AB you need part # MC38RB. Either way thought these lights are interchangeable with each other.
    view full answer...

Do you have a question about this Trailer Light?




  • Why etrailer.com?

    At etrailer.com 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 Patrick B
Video Edited:
Patrick B
Employee Dustin K
Video Edited:
Dustin K
Employee Laura H
Updated by:
Laura H
Employee Brian T
Updated by:
Brian T

At etrailer.com 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.