Mounting Bracket for Optronics A91, AL82, AL90, AL91, or AL191 Series Lights - Open Back - Black

Mounting Bracket for Optronics A91, AL82, AL90, AL91, or AL191 Series Lights - Open Back - Black

Item # A91BOB

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Optronics Black Accessories and Parts - A91BOB
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  • Trailer Lights
  • Mount Parts
  • Mounting Brackets
  • Optronics
  • Black
Black plastic bracket lets you install an Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer light. Surface mount on 2" centers - hardware sold separately. Open back allows room for wiring. Call 800-298-8924 to order Optronics accessories and parts part number A91BOB or order online at etrailer.com. Free expert support on all Optronics products. Guaranteed Lowest Price and Fastest Shipping for Mounting Bracket for Optronics A91, AL82, AL90, AL91, or AL191 Series Lights - Open Back - Black. Accessories and Parts reviews from real customers.


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  • Reviews (44)
  • Q & A (26)
  • Videos (1)
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Optronics Accessories and Parts - A91BOB

Black plastic bracket lets you install an Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer light. Surface mount on 2" centers - hardware sold separately. Open back allows room for wiring.


Features:

  • Mounting bracket for Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer clearance/side marker lights
  • Gasket creates a weathertight seal
  • Surface-mount design - hardware sold separately
  • Open back allows room for wiring
  • Two-wire harness for light sold separately
  • Black molded plastic construction


Specs:

  • Dimensions: 2-7/8" long x 1-1/2" wide x 1/2" deep
  • Mounting hole dimensions (center to center): 2"
  • 3-Year warranty


dimensions of open back base


A91BOB Optronics Black Plastic Base for A91, AL82, AL90, AL91, or AL191 Series Trailer Clearance/Side Marker Light

Alternate part number: A-91BOB







Video of Mounting Bracket for Optronics A91, AL82, AL90, AL91, or AL191 Series Lights - Open Back - Black


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




Video Transcript for Optronics Trailer Lights A91BOB Review

Today we're going to be taking a look at a mounting bracket for some Optronics trailer lights. This mounting bracket is for Optronics A91 series, AL82 series, AL90 series, AL91 series or AL191 series trailer clearance and side marker lights. A gasket on the bottom really helps create a nice weather tight seal. This is a surface mount design, your mounting hardware sold separately. There's going to be 2 mount hole locations on this unit and it's got a nice open back design to it that's going to allow room for your wiring. A 2 wire harness for your light is sold separately, you can find it here at etrailer.com. This bracket's constructed from a black molded plastic, very strong durable design.

A few measurements to go over with you real quick starting with the overall length of the unit. That's going to give us a measurement of about two and seven eighths of an inch. If we measure the overall width, that's going to give us a measurement of about an inch and a half and then the depth or the height of the bracket is about half an inch. The mount holes on the unit, these are going to be separated on center apart from one another by right on two inches. We're going to show you how the light snaps in. This is just for demonstration purposes but the light is going to have these brackets on the sides of it.

Those brackets engage inside the bracket. These mounting points engage inside the bracket and then it just snaps into place. Then you can see there that you have access to the connection points for your wiring. That's going to do it for today's look at the mounting bracket for Optronics trailer lights.


Customer Reviews

Mounting Bracket for Optronics A91, AL82, AL90, AL91, or AL191 Series Lights - Open Back - Black - A91BOB

Average Customer Rating:  4.7 out of 5 stars   (44 Customer Reviews)

Black plastic bracket lets you install an Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer light. Surface mount on 2" centers - hardware sold separately. Open back allows room for wiring.

- A91BOB
by:

I have to say it's an absolute pleasure dealing with etrailer. Not only did my package arrive on time as promised but the experience of dealing with the people at etrailer such as Tommy and Dani made it that much more of fun experience. There was not a problem with answering my questions if they did not know the answer they found out the answer and got back in touch with me. Their prices are great their products are good quality and there's so many good things to say about the company that I could go on and on. Keep up the good work and I will be doing all my trailer business with etrailer. Just check out their website and see how much more they have to offer. 402699



- A91BOB
by:

Disappointed that the mounting bracket and pigtail were sold separately. Also the pigtail protrudes beyond the surface of the mounting bracket,creating additional work in mounting. 568624



- A91BOB
by:

Great for ease of installation. The plastic is a bit brittle, had one break due to a rock strike on the highway 721708



- A91BOB
by:

Purchased fenders from etrailer. Selection was great, priced competitively and shipping quicker than expected. Also purchased marker lights, which were easily installed in fenders. 719084



- A91BOB
by:

Received my new lights and harness on time and nicely packaged. There was a mix-up with the harness and Stacey took care of it immediately. Thanks for great customer service! 715267



- A91BOB
by:

This product was exactly what I needed and it was a very quick delivery time thanks. 696272



- A91BOB
by:

The light I ordered are excellent. I replaced all the lights on my boat trailer to LED. The first trip to lake with the boat, got many comments from other boat owners at the lake. I told them about etrailer. I know they will be as satisfied as I am. Thanks etrailer. From now on I will buy all my stuff from etrailer!!! 692029



- A91BOB
by:

I purchased bearing and hubs for a utility trailer over a year ago, they are still working perfectly, have been very happy with the quality 680945



- A91BOB
by:

quick and easy , 2" on center holes for mounting worked where old light was, no new holes to drill. 669355



- A91BOB
by:

Have not had any problems. Will be making other purchases in the future 666208



- A91BOB
by:

Awesome product and great delivery time. 659093



- A91BOB
by:

Worked great with the Amber LED side marker lights. 612485



- A91BOB
by:

products are good quality, in expensive, and customer service by Nicole was great. I was handled in 10 minutes . 567781



- A91BOB
by:

Fit perfectly on my Shorland'r. 513838



- A91BOB
by:

I've always had good luck when I buy from etrailer. I've been working on my boat trailer and small utility trailer and purchased items for both. I'm very happy with the products so far. I've installed everything that I bought, but it's impossible to send any pictures because both trailers are covered and put away for the winter. Keep up the great work. 473513



- A91BOB
by:

This is so great and so logical to me to ask a question to a client a year later. Most of the enterprises would ask this question in the first week. If you buy something, most of the time you will be happy a week later. I love what I bought and it is still working great. Your email remembers me to buy everything for my trailer from you. 439206



- A91BOB
by:

Everything is great. Glad for the quick shipping and quality products. 436557



- A91BOB
by:

Great price, prompt delivery and great product. 434675



- A91BOB
by:

As always great product and shipping right on time! 413162



- A91BOB
by:

I ordered these plastic mounts to replace the factory marker light mounts on my SnoLandr snowmobile trailer. I found these on the etrailer site and they were very similar. Thank you guys 411658



- A91BOB
by:

good product and reasonable price 402129



- A91BOB
by:

got everything I needed and it here in a day or two 366339



- A91BOB
by:

All the parts I ordered have arrived as promised and worked as they should, I will order from etrailer again as needed. 345768



- A91BOB
by:

Good little bracket for the price. 342966


Comments

Working great. Still holding a good seal.

Chris G - 02/19/2018

34846

- A91BOB
by:

Mounting bracket was exactly what I nee ded. 340540



- A91BOB
by:

The parts are better than the original and shipped in three days to Maui. 326022



- A91BOB
by:

Quality product. Customer service quite helpful in making the right choice. Will use them again. 317752



- A91BOB
by:

Product was fine but needed to make it clearer that the light and mount must be ordered separately. 312092



- A91BOB
by:

Everything was received exactly as described, and on-time. I had a few questions since we were in the middle of a hurricane, and Angie responded quickly and thoroughly. Etrailer is definitely my go-to for trailer-related products from now on! 308413



- A91BOB
by:

As expected. Fast shipping 307228



- A91BOB
by:

Fit my use and worked great 303375



- A91BOB
by:

no problem. Great service 300320



- A91BOB
by:

Great! Will work for the purpose it was purchased for. 291258



- A91BOB
by:

Great 280581



- A91BOB
by:

bought as part of a larger order to replace the incandescent marker lights on my boat trailer. All components fit together well - resulting in a professional, neat installation. 274722



- A91BOB
by:

I purchased these as more of an insurance policy when I changed out the lights on my Shoreland'r trailer. I wasn't sure if the new lights would fit into the existing housings. They fit perfectly!. These brackets have the same mounting hole pattern and dimensions as the stock trailer housings, so when I decide to change them out, it will be a breeze!! 273030



- A91BOB
by:

seems like just last week I was saying how much i liked the led lights and where would they be without the mounting brackets? its all good and thats the truth! me so happy ;-) 271718



- A91BOB
by:

I friend told me about etrailer.com a couple of years ago and for that I'm grateful. I can locate any obscure light for my trailer and have it shipped to my door! This saves a lot of time from shopping local stores when I'm trying to locate a part. The prices are less than my local stores too! 231759



- A91BOB
by:

As described 225187



- A91BOB
by:

Good product requires flat head screws to allow light to be snapped in. 206659



- A91BOB
by:

Fit my existing spot from my old Peterson marker lights 194228



- A91BOB
by:

Great customer service! Fast shipping, 155774



- A91BOB
by:

Perfect replacement for my '90 Shorelander trailer. Very happy w/ price, ship time, and quality of parts. Thank you etrailer!! 93366



- A91BOB
by:

Work like advertized lights are tight in these bases 58203


44
44

Ask the Experts about this Optronics Accessories and Parts

Do you have a question about this Accessories and Part?


  • Availability of Truck Lite Model 15 Light Base Replacement
  • I looked up the Truck-Lite 15 light and found that it's basically the same as the Optronics Mini Thin Line clearance lights like the part # AL82AB. Which we have a black base part # A91BOB and a chrome base part # A91OB for but we do not have a white one.
    view full answer...

  • What is the Depth of Optronics 2-Wire Pigtail?
  • I believe what you are asking is the depth of 2-Wire Pigtail # A46PB, and it is 0.6 inches, which is just 0.1 inches more than the depth of both mounting brackets you were referring to, # A91BOB as well as the self-grounding # A91BB. This means it would protrude ever so slightly from the back of the bracket when attached to lights # AL90RB and # AL90AB.
    view full answer...

  • Are Optronics Amber Marker Lights MCL86AB Submersible?
  • The Sealed, Steel Armored LED Trailer Clearance and Side Marker Light # MCL86AB cannot be submersed; it is weather-tight. What you would want is something that is waterproof such as Sealed, Mini Rectangular LED Trailer Clearance # MCL85AB. You may also want to consider something like the Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB which you would mount with bracket # A91OB (chrome) or # A91BOB (black). I have added video reviews of each of these products for...
    view full answer...

  • Parts Needed to Install Optronics Submersible Red LED Clearance and Side Marker Light AL91RB
  • The Optronics Thinline Submersible Red LED Clearance and Side Marker Light # AL91RB installs using a base, part # A91BOB in black or part # A91OB in chrome finish. A 2-wire pigtail # A46PB will allow for electrical installation. The white wire on the pigtail is ground. If your original light used only 1 wire then its base provided the ground connection. In this case you can use the self-grounding base # A91BB in black or # A91CB in chrome finish. In this case you will use Single Wire...
    view full answer...

  • Recommended Replacement Trailer Lights and Jack
  • You can remove the snap ring of our Bulldog jack and leave the welded mounting bracket on your trailer. You can replace the jack with # BD151460. The closest LED tail lights we have to yours are # 271595 for the driver's side and # 271594 for the passenger's side. They measure 7-1/2 by 3-1/2 inches with 2 inches between the mounting holes. They're submersible. We don't have the exact clearance light either but # AL91AB is very close and I think will work for you. It's also an LED...
    view full answer...

  • Will LED Clearance Light Work With One Wire
  • Yes, the Thinline LED Clearance and Side Marker Light - Submersible # AL91AB will work with your single power wire, as it uses a 2-wire (one for power, one for ground) pigtail or 1-wire pigtail with a self-grounding bracket. To mount this light you have a couple options. The first is the Mounting Bracket # A91BOB with Right Angle 2-Wire Pigtail # A46PB; you'd also want to use the Self-Tapping Screw # 1131832. Your other option to mount this light is to use Self-Grounding Mounting...
    view full answer...

  • Difference Between Optronics Lights AL90RB and AL91RB
  • The Optronics FLEET Count Mini Thinline Sealed LED Marker/Clearance Light # AL90RB has a single LED element while the similar Thinline LED Clearance and Side Marker Light # AL91RB has three LEDs for brighter output and it is submersible. Both can mount using either grommet # A91GB or bracket # A91BOB.
    view full answer...

  • Recommended Side Marker Lights for EZLoader Trailer
  • I can help you find the correct parts for your EZ Loader trailer. Based on the photos you submitted, the # AL91RB will fit your style connector on your trailer. The amber light is # AL82AB, and the grommet you will need is # A91BOB. All these items come in quantity of 1 so you will want to adjust the quantity on the grommets page to 2. I have linked all the above products to this page for your convenience.
    view full answer...

  • Installing Optronics Sealed LED Trailer Marker # AL191RB to Trailer
  • The Optronics Sealed Micro-Flex Mini Thin Line LED Trailer Marker # AL191RB referenced in your question can be installed with a mounting bracket like # A91BOB and the 2-Wire Pigtail # A46PB. The white wire is for ground and the black wire is for power. Most likely the brown wire you mentioned on your trailer is for the tail/marker lights, which is where the black wire will be connected. I do recommend testing the wires on your trailer just to verify this, as trailer manufacturers or previous...
    view full answer...

  • How Does the Flush Mount Grommet # A91GB Install a # AL91AB Light Into a Trailer
  • All the parts you ordered are designed to work together, but the grommet part # A91GB is for flush mounting the Optronics Light part # AL82AB that you have. This grommet will get installed into a hole in on your trailer that is about 2-7/8 inches across and 1-1/2 inches tall. If you do not have a hole with those dimension you might be better served getting a Black Mounting Bracket # A91BOB to allow you to surface mount the # AL82AB.
    view full answer...

  • Mounting Bracket Recommendations For Optronics Thinline LED Clearance and Side Marker Light
  • For the # AL91RB trailer lights we have a couple options for mounting brackets. For a self-grounding bracket where the light is grounded through the mounting hardware I recommend part # A91BB. The gasket is included. For a mounting bracket that has an open back you need part # A91BOB.
    view full answer...

  • What Are the Dimensions of Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82RB
  • The Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82RB measures 2-1/2 x 1-3/16 x 7/8 inches. This sealed waterproof light features 2-wire design. The mounting bracket is not included but is available as part # A91BOB in black or part # A91OB in chrome. Please refer to the photo provided which shows this light fixture. This same light is also available in an amber lens, part # AL82AB.
    view full answer...

  • Why Don't Trailer Clearance Lights Attach to Trailer Using Adhesive
  • Over time a light held on with an adhesive would run a much higher risk of coming unattached than one with solid install hardware which is why the trailer lights we offer either install using nuts/bolts or by fitting into a hole in the trailer and using a correct sized grommet. I attached a link to a page that has all of the LED trailer clearance lights we offer. If you wanted to send me a picture of your trailer where you want to install the lights I can help pick out what you might need.
    view full answer...

  • Brackets and Wiring for Sealed, Miro Flex, Mini Thin Line LED Marker or Clearance Light # AL191AB
  • We do have the parts you need to complete installation of the light. But first, sealed, Miro Flex, Mini Thin Line LED Marker or Clearance Light # AL191AB does not include a base or wiring harness. We have the compatible bases listed as related products on the right hand side of its product page. There is flush mount grommet, # A91GB Self-grounding black bracket, # A91BB Black bracket with open back, # A91BOB Chrome bracket with open back, # A91OB Self-ground chrome bracket, # A91CB For...
    view full answer...

  • Mounting Options for LED Clearance and Side Marker Lamp Part # AL82AB
  • The clearance and side marker light you referenced, part # AL82AB, uses a plastic mounting base that is sold separately. The base is available in a black (part # A91BOB) or chrome (part # A91OB) finish. If the appropriate sized hole is available, the lamp can be flush mounted using a grommet mount, part # A91GB.
    view full answer...

  • What Hardware is Best for Mounting Trailer Light Mounting Bracket to the Trailer Surface
  • It depends on the material of the trailer surface you are wanting to mount it on. You could use screws on wood surfaces, self-tapping screws for sheet metal, or nuts and bolts would work on sheet metal. To remove the old ones, you can drill out the rivet, or they may be plastic pop-in rivets that you may be able to pry out with a screw driver.
    view full answer...

  • Does Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB Have Power and Ground Wire
  • The Optronics Mini Thin Line Sealed LED Marker/Clearance Light # AL82AB that you referenced have a power and ground wire that comes out of the back of the light. The recommended base with this light is part # A91BOB. But if you are asking about wiring you can easily wire these lights to your existing trailer wiring. White is ground black is power.
    view full answer...

  • Size of Mounting Hole Required for Installing Optronics Grommet # A91GB
  • The Optronics Grommet # A91GB that you referenced, which is designed to work with the Thinline LED # AL91RB that you were looking at, will install into a mounting hole on the trailer that is 2-7/8 inches across and 1-1/2 inches tall. If you do not have this type of mounting hole on your trailer, you can use the Mounting Bracket # A91BOB instead, which will allow for a surface mount installation. I have attached a couple short video demonstrations on these products that you can also...
    view full answer...

  • Replacement 2-1/2 Inch Long Optronics Marker Lights for Cargo Trailer
  • The closest Optronics trailer light assembly we have available to your existing unit is the Optronics Thinline LED # AL91RB. This LED light measures 2-1/2 inches long and 1-3/16 inches wide. The mounting bracket # A91BOB it is used with (not included with the light) features bolt holes that measure 2 inches apart on center. Unfortunately the SAE P2 P3 number you found on the lens of your existing light doesn't indicate the actual light model but has to do with DOT regulations. If the...
    view full answer...

  • Looking for LED Version of # AL91RB Mini Rectangular Clearance/Side Marker Lamp
  • You bet we do! For the LED version, you'll need part # AL91RB. The lamp can be grommet mounted using # A91GB or surface mounted using a self grounding base like # A91BB for black/ # A91CB for chrome or a standard base like part # A91BOB for black/ # A91OB for chrome. If you use a self grounding base, use the single wire pigtail, part # A91LW or for the standard base, use the two wire pigtail, part # A49PB.
    view full answer...

  • Red Side Marker and Clearance Lights for a Trailer or Coach
  • Yes, you would need Sealed, Thin Line LED Trailer Clearance, Side Marker Light, # AL82AB. For installation, you will also need a bracket. For black use part # A91BOB. For chrome use # A91OB.
    view full answer...

  • How to Install Side Marker Light
  • To install a side marker light like the Optronics # AL82AB on your 2014 Malibu you will need to ground the white wire and then connect the black wire to your running light circuit. This then installs on the mounting bracket # A91BOB which you will need install using something like a self-tapping screw # 1131832. Sometimes the lights ground via the mounting hardware so if that's the type of light you have you need to make sure that you mount it to a clean, bare-metal surface. Attached...
    view full answer...

  • Surface Mount Bracket Recommendation for Trailer Clearance Light part # AL82AB
  • The surface mount bracket you need is the part # A91BOB for the light part # AL82AB that you referenced.
    view full answer...

  • Can the Optronics AL91 Light Be Mounted Vertically
  • Yes, you can mount this Optronics Trailer Light # AL82AB basically in any way you like as long as it visible. You will need to consult your local laws and regulations to determine which mounting positions are legal. I attached a review video for this product for you to check out also. You might also be interested in purchasing a Black Mounting Bracket # A91BOB to help you install the # AL82AB. I attached a review video for this product for you to check out also.
    view full answer...

  • LED Tail Light, Marker Light, License Plate Light, and Interior Lights for a 1976 Horse Trailer
  • Starting with the tail lights, # STL36RB and # STL37RB are LED lights and mount on studs (surface mount). For side marker lights you can use # AL82AB with grommet # A91GB, and base # A91BOB. For a license plate light with bracket you can use # LPL55CB. We have numerous interior LED light options and I have included a link to them to the right. And to add a 7-Way trailer end you can use # H20046. Because there are so many light options if these won't work for you, let me know what...
    view full answer...

  • How to Determine if Amber Clearance Light Will Work on Trailer
  • In order to determine if the Thinline LED Clearance and Side Marker Light # AL91AB will fit your trailer you simply need to measure your light and see if it matches; this light is 2-1/2" long x 1-3/16" wide x 7/8" deep. It is also a great option because it can be either recess or surface mounted. For a surface mount you will use Self-Grounding Mounting Bracket # A91BOB with Plug # A91LW. For a recess mount you will use Grommet # A91GB with Right Angle 2-Wire Pigtail # A46PB. I...
    view full answer...


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Info for this part was:

Expert Research:
Patrick B
Expert Research:
Jameson C
Updated by:
Adele M
Updated by:
Laura H
Updated by:
Amy B
Updated by:
Brian T
Installed by:
Cole B

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