Optronics Dual Bulb Trailer Clearance and Side Marker Light - Incandescent - Oval - Amber Lens

Optronics Dual Bulb Trailer Clearance and Side Marker Light - Incandescent - Oval - Amber Lens

Item # MC66AB

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Optronics 4L x 2W Inch Trailer Lights - MC66AB
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Product Images

In Use/Installed

4" x 2-1/16". Incandescent trailer light functions as a clearance and side marker light when properly mounted. Dual bulb design increases light output. Snap-on lens. Surface mount to trailer - hardware not included. PC rated. (2) 194 bulbs. Lowest Prices for the best trailer lights from Optronics. Optronics Dual Bulb Trailer Clearance and Side Marker Light - Incandescent - Oval - Amber Lens part number MC66AB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (41)
  • Q & A (6)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MC66AB

  • Clearance Lights
  • Oval
  • Incandescent Light
  • Amber
  • Surface Mount
  • 4L x 2W Inch
  • Non-Submersible Lights
  • Optronics

4" x 2-1/16". Incandescent trailer light functions as a clearance and side marker light when properly mounted. Dual bulb design increases light output. Snap-on lens. Surface mount to trailer - hardware not included. PC rated. (2) 194 bulbs.


Features:

  • Incandescent trailer light functions as a clearance and side marker light when properly mounted
  • Dual bulb design greatly increases light output
    • Incandescent bulbs can be easily replaced
  • Durable ABS housing and snap-on lens
  • Amber lens over incandescent bulbs
  • Compatible with 12V DC system
  • Surface mount to trailer - hardware not included
  • 2-Wire design includes power lead and ground wire
  • DOT compliant
  • PC rated


Specs:

  • Dimensions: 4" long x 2-1/16" tall x 1-1/16" thick
  • Distance between mounting holes (center on center): 3"
  • Bulb type: 194
  • Number of bulbs: 2
  • Power draw at 12.8V: 0.2 amps
  • 3-Year warranty


Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # ML2043A
Truck Lite # 26301Y
Grote # 45263
Peterson # 135A
Bargman # 30-58-002

Optronics MC66 Series Dual Bulb Marker Clearance Light Dimensions

PC-Rated Lights

Diagram of light spread for PC rated light

A PC-rated light produces a 90-degree angle of light to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. When properly installed, this type of light can function as both a front clearance light and a side marker light or as a rear clearance light and side marker light.



MC66AB Optronics Dual Bulb Trailer Clearance and Side Marker Light - Incandescent - Oval - Amber Lens - PC Rated

Alternate part number: MC-66AB






California residents: click here


Video of Optronics Dual Bulb Trailer Clearance and Side Marker Light - Incandescent - Oval - Amber Lens


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




Video Transcript for Optronics Trailer Lights - Clearance Lights - MC66AB Review

Today we're going to be taking a look at part number MC66AB. This is the Optronics oval amber trailer clearance and side marker light. The PC rated light is going to function as both a clearance and side marker light when mounted at 45 degree angle. It's got a weather and corrosion resistant design which means that it can withstand exposure to normal weather conditions. This light is not water proof and it's not designed to be submersed underwater. It's going to feature dual incandescent bulbs.

It's going to greatly increase your light output. It's going to feature a replaceable lens and the bulbs are replaceable as well. They're going to use bulb number 194 and you can find those here on our website if you ever need any replacements. It's going to have the nice white base, two wire design, white wire is for ground. Black wire is for power. It's going to expose your mounting locations here at the backside.

Those are going to separated on center by 3 inches. The overall length measuring from edge to edge. That's going to give us a measurement of about 4 inches. Overall width, we're looking about 2 and 1/16 of an inch and then the thickness or the depth is .. we're going to give us a measurement about 1 and 1/16 of an inch.

This light is SAE and Department of Transportation compliant. We're going to go and hook it up to our external power source. That way you can see what it looks like with power running to it. Again white wire is ground. Black wire is going to be our power wire.

You can see here the two incandescent bulbs, really optimizes the light output. Sends out a really nice consistent signal. You're going to have a bulb on each side so it really distributes light evenly and the amber lens allows a lot of light to come through. That's going to do it for our review of part number MC66AB. This is the Optronics oval amber trailer clearance and side marker light. .


Customer Reviews

Optronics Dual Bulb Trailer Clearance and Side Marker Light - Incandescent - Oval - Amber Lens - MC66AB

Average Customer Rating:  4.8 out of 5 stars   (41 Customer Reviews)

4" x 2-1/16". Incandescent trailer light functions as a clearance and side marker light when properly mounted. Dual bulb design increases light output. Snap-on lens. Surface mount to trailer - hardware not included. PC rated. (2) 194 bulbs.

- MC66AB
by:

The product was exactly what I wanted. The order shipped on time and the customer service was great. 660459



- MC66AB
by:

These lights are nice, I just wish they came with a weather seal. 654812



- MC66AB
by:

Great service and super fast shipping ! 649673



- MC66AB
by:

I bought these to replace the marker lights on my travel trailer. etrailer had the best price, and they looked to be good replacements. When I installed them they seemed to be as good or better than the lights than came with the trailer. After a year they seem to still look good and work just fine. 643118



- MC66AB
by:

Hard to beat for the price. I bought 15 of these for my camper. A year later, and they all still work. 616117



- MC66AB
by:

Works as expected with no issues! 559425



- MC66AB
by:

These lights will make a great up grade to the mini home I am restoring. 559137



- MC66AB
by:

As always, great product, at great pric e. 557481



- MC66AB
by:

great price works as should 551342



- MC66AB
by:

Order was complete and quickly shipped. 549931



- MC66AB
by:

Product was delivered quickly. Exactly what I was looking for. 542929



- MC66AB
by:

Excellent service. Received items earlier than expected. Good packaging. Nothing damaged. Overall great customer service and a pleasure doing business with this vendor. Will definately use this company again. 526023



- MC66AB
by:

The service is always GREAT. The prices are the best that I have found anywhere. They do a great job. The products are always just what i wanted. Keep up the wonderful service etrailer 472274



- MC66AB
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 471986



- MC66AB
by:

Great price thanks 423915


Comments

still works fine

Larry - 08/22/2018

42670

- MC66AB
by:

Price great! Lights arrived promptly! Installation easy and they work great! 400234



- MC66AB
by:

Fast shipping. Installed but not tested. 367888



- MC66AB
by:

Classy piece-gets lots of compliments! 365368



- MC66AB
by:

fast shipping and work great 361876



- MC66AB
by:

So far so good after a year, the light fit perfectly and is still working. 323208



- MC66AB
by:

Product was spot on and arrived very quickly. Would buy more products from this site if needed. 313541



- MC66AB
by:

The light fit properly, was easy to wire, and lit up as it was supposed to. 311619



- MC66AB
by:

Good quality replacement products 226998


Comments

Still working as it should

Doug S - 09/21/2016

21109

- MC66AB
by:

lights were easy to install 224939



- MC66AB
by:

great replacement for vintage trailer. 211864



- MC66AB
by:

Though this is a more modern version of the marker lights that were on my 1995 Sundowner Sunlite 3-horse slant, the holes matched up perfectly for easy installation! 210703



- MC66AB
by:

Fast shipping Great price 209904



- MC66AB
by:

Have not installed product yet but seems to be of good quality and came with everything needed. 199977



- MC66AB
by:

etrailer.com is an excellent online company! The products I received were exactly what I needed to fix up my old V-nose and get it back on the road. The shipping was lightning fast and excellent follow up communications. I would recommend etrailer.com to anyone, any time!! AAAAA+++++ company. 192866



- MC66AB
by:

Product great - delivery fine 189795



- MC66AB
by:

Seals well against the weather. Great for the price 183409



- MC66AB
by:

Two 194 bulbs. Cover locks on firmly. Will buy again. 158530



- MC66AB
by:

Great replacement for my old weathered lights. cheaper to buy new lights then just the lenses.. Yes these lights come with two bulbs installed. 138611



- MC66AB
by:

Instant response following the order confirming they received it, followed up with shipping info and tracking when shipped and received it ahead of scheduled delivery! Will only use etrailer for my trailer needs. Thanks 120201



- MC66AB
by:

I used just the lens cover. Was in a hurry when ordering but was pleased to find out that it fit as replacement on my camper trailer. Had great service from the staff at etrailer. Fast shipping, great communication and awesome site. Will definitely order from them again! 97265



- MC66AB
by:

The light is an exact replacement part. The delivery time was as expected. The web site was easy to navigate and provide excellent information regarding the wiring on the trailer. 92279



- MC66AB
by:

Good quality light, just wish the wire pigtails were about 2" longer. 66140



- MC66AB
by:

Products arrived promptly and all seem to be of good quality. Hopefully I feel the same after install and use of lights. Thanks 62452



- MC66AB
by:

Got exactly what I ordered. The prices were great and it got here when promised. 28182



- MC66AB
by:

After working on the old lights on my camper numerous times just prior to leaving on a trip and while traveling, I decided it was time to replace all of the lights. I purchased two new tail/brake lights, and four new side markers. The total price including shipping was just over $28 (I should have done this a long time ago). The lights arrived within 3 days of being ordered, and I was able to install them fairly quickly. I am so happy that I now have all six lights working perfectly, and shouldn't have to worry about them for a long time 16916



- MC66AB
by:

Good quality product 8153


41
41

Ask the Experts about this Optronics Trailer Lights

Do you have a question about this Trailer Light?


  • Comparing Amber Clearance Lights with 1-Wire vs. 2 Wires
  • The difference between a clearance light with one wire and one with two is simply that the 1-wire type uses the light's mounting hardware to establish the ground, rather than a separate ground wire. The two are interchangeable so long as the mounting surface on the trailer will allow you to drill a hole to let you attach the white ground wire to the frame. Alternately, you could attach the ground wire to another of the existing ground wires on the trailer.
    view full answer...

  • Replacement Amber Lens for Marker Light on a 32 Foot Yellowstone Camino Camper
  • I wish we had a master list of the parts used on all trailers and RVs but we do not. So we have to go by measurements or part numbers on the individual parts if applicable. The amber version of lens A66RB is # A66AB. It is a replacement for light # MC66AB which is 4" long x 2-1/16" wide x 1-1/16" deep. And that light is a direct replacement for any of the lights below: Uni Bond ML2043A Truck Lite 26301Y Grote 45263 Peterson 135A Bargman 30-58-002
    view full answer...

  • Wiring Single Wire Clearance Lights on an Enclosed Trailer
  • You will need to use a circuit tester, item # 40376 if needed, to test the wires exiting the trailer to figure out the wiring configuration with the trailer hooked up to the truck and the running lights on. You will probably find that you have tail light power on one of the green wires and no power on any of the other wires. In this case you would wire the two green wires to the power wire coming from the clearance light. You would then need to wire the two white wires coming from the...
    view full answer...

  • Clearance Trailer Lights With Replaceable Lens Recommendation
  • We do have clearance lights that may work for you. The clearance lights we offer come in amber or red and we have either 1 or 2 bulb units. You mentioned you like the 2-bulb feature on some clearance lights. I recommend part # MC66RB. This light comes with 2 incandescent bulbs and has a red lens. The amber version of this light is part # MC66AB. Both of these lights use the replacement bulbs, part # A194B. These are push-in bulbs. The replacement lens for the red light assembly...
    view full answer...

  • Is railer Clearance and Side Marker Light, # MC66AB, Submersible
  • The Trailer Clearance and Side Marker Light, # MC66AB, is not a submersible light. You will not want to put this light under water. A sealed light like # MCL49AB, would be the way to go. I have included a link to a video review of this light for you.
    view full answer...

  • Replacement Lenses for Unknown Trailer Lamps
  • We have a pretty large selection of replacement lenses available. I'd be happy to look at a photo of your current lenses if you'd care to send it along. You can simply attach the photo to a reply to this email. Also helpful would be any item or part numbers printed or stamped into the light fixture itself (not the lens). Any numbers on the lens itself would be DOT certifications, not a part number for the lens. Dimensions of your current lenses would be helpful as well. I've linked you...
    view full answer...


Do you have a question about this Trailer Light?




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Info for this part was:

Expert Research:
Michael H
Expert Research:
Adam R
Updated by:
Laura H
Updated by:
Brian T
Installed by:
Cole B
Installed by:
Randy B
Video Edited:
Chris R
Video by:
Zach D

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