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: $2.80
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 800-298-8924 for expert service.
  • All Info
  • Reviews (63)
  • Q & A (10)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MC38RB

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

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   (63 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:

Same 821907



- MC38RB
by:

Same 821906



- MC38RB
by:

Great product. It was the same as 1994.easy to replace 825887



- 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! 821631



- MC38RB
by:

Quality product that suits my needs. Fast service. Thanks 775491



- MC38RB
by:

Worked as expected 718426



- 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 696749



- MC38RB
by:

Everything I ordered was a fit, fast shipping, always buy from this company for your trailer needs 682250



- MC38RB
by:

Just like the old ones. They work until they don't. I would buy again. 662112



- 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! 639668



- MC38RB
by:

Order was prompt, accurate, and worked great. Thanks 605611



- MC38RB
by:

good price.. excellent delivery 599423



- 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. 599199



- MC38RB
by:

Lights were delivered in a timely manner & was able to replace the damaged light on our rv, looks great!! 564024



- MC38RB
by:

Was very pleased with the lights I ordered and the time it took to get to me. 553930



- MC38RB
by:

Service from this firm has been spot on every time. 548903



- 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!! 543383



- MC38RB
by:

excellent products, etrailer has the parts I need. These light are even better built then the old ones. 521603



- MC38RB
by:

Great replacement lights. 510663



- MC38RB
by:

As good as I had hoped for. 504966



- MC38RB
by:

My old side marker lights were in bad shape so need replaced. Purchased some extra ones for down the road. 500721



- 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 475226



- MC38RB
by:

These connectors are great trailer wiring connections. 473941



- 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 471987



- MC38RB
by:

Product was as described, quickest shipping that I ever got, that was not overnighted. Very reasonably priced! 462436


25
64
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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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 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...
  • 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...
  • 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:

Video Edited:
Patrick B
Video Edited:
Dustin K
Updated by:
Laura H
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.