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

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

Part Number: A91BOB
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$8.44
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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. 1-800-940-8924 to order Optronics accessories and parts part number A91BOB or order online at etrailer.com. Free expert support on all Optronics products. Great prices 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 (115)
  • Q & A (0)
  • Videos (2)
  • Photos

Optronics Accessories and Parts - A91BOB

  • Trailer Lights
  • Mounting Hardware
  • 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.


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




California residents: click here


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 Lights Mounting Bracket Installation

Shane: Hey. Hi, Shane here with etrailer.com. Today we're going to be taking a look at Optronics mounting bracket for Optronics A Series lights. This is what our bracket's going to look like when it's installed. It's going to be a very durable plastic construction. It's going to be a surface mount.

It's going to have a foam backing to help seal the backside of the light. It's going to have an open back. Allow you to run your lights or run your wires from your lights much easier. It's going to allow you to snap your light into place. These are also going to be available in chrome.

These are designed to work with A91, AL82, AL90, AL91 or AL191 Series lights. You can find each one of those lights here at etrailer.com. Keep in mind mounting hardware is not included with this light. Again, with this bracket, the light is just going to snap into place. Makes it very easy to attach and detach the light.That's going to do it for our look at Optronics mounting bracket for A Series lights..

Customer Satisfaction Score:


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   (115 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.

by:

Perfect fit, 2001 Shoreland'r boat trailer, absolutely no drilling, lined up with factory holes.



by:

Wish I had read more, it doesn’t come with any of the plastic thumb darts to mount it to the fender.



by:

Worked great with the Amber LED side marker lights.



by:

The light fit perfectly



by:

I consider this plastic base to be over priced.



by:

Every thing is great



by:

The mounting brackets are well made and very durable. I like the Open Back design as it allows clearance for the electrical connector. I also liked the foam backing as it made a good, clean seal/finish on the final project.

I mounted them on my boat trailer using #8 stainless hardware without issue. I have a black trailer and these matched nicely!

I would buy again!



by:

Great replacement for my boat trailer.



by:

The materials order were great! My order Was processed quickly and arrived promtly. Will Continue to go Etrailer for my Material needs.



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.



by:

You wouldn't think something like getting replacement running lights would be that complex but frankly it is. With the various options and manufacturers its a nightmare. After searching the desert of the internet for correct information I stumbled upon this oasis of information from etrailer to get the right lights and mounting brackets. I now understand what the "e" stands for in their name, they make trailer stuff "easy".



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!!



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 ;-)



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.



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!!!




by:

mounted to hold Optronics Mini Thinline LED clearance lights



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.



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.



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!



by:

Absolutely excellent service. Kate was very knowledgeable, friendly and willing to help me. I received the correct product in record time! Thank you Kate!



by:

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



by:

Blaa Blaa Blaa. Yada Yada Yada. Cheap overpriced plastic. Hope they work!

Mitchell

3/25/2023

Still cheaply made overpriced plastic!



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



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.



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.


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See what our Experts say about this Optronics Accessories and Parts

  • Optronics Trailer Clearance Light Similar to AL 91RB that Installs With Smaller Hole Drilled
    The Optronics clearance light part # AL91RB in all of it's configurations would require a hole to be drilled for a harness like the part # A46PB to install with a grommet like the part # A91BOB. There isn't a way to mount it flush without drilling. If you used the part # AL82RB instead though it would require a much smaller hole be drilled since the entire harness of the other setup gets ran through the hole.
    view full answer...
  • Does The Optronics LED Side Marker Light # AL91AB have 2 Male Connector Posts
    Yes, The Thinline LED Clearance and Side Marker Light # AL91AB has 2 male connector posts on it. This waterproof trailer light functions as both a clearance light and a side marker light when properly mounted. It is 2-1/2 inches long by 1-3/16 inches wide by 7/8 inches deep. The Right Angle 2-wire pigtail # A46PB and The Mounting Bracket # A91BOB are sold separately. I attached a review video link below.
    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...
    Image 1 for
  • Availability of Red Miro-Flex LED Clearance Lights
    Although they aren't an exact match on size and design compared to the # OPT78FR, we do have a couple options for red Miro-Flex side marker lights. You can choose from one of the following: -Miro-Flex Mini LED Clearance or Side Marker Light - Submersible - 3 Diodes - Rectangle - Red Lens # AL191RB -Miro-Flex Thinline LED Trailer Clearance or Side Marker Light - Sumbersible - 4 Diodes - Red Lens # MCL63RB The # AL191RB measures 2-1/2" long x 1-3/16" tall x 1" thick and can have a recessed...
    view full answer...
  • Does Light Bracket # A91BOB Fit LED Taillight # LPL91CB
    Yes the bracket part # A91BOB is compatible with the LED light part # LPL91CB that you referenced.
    view full answer...
  • Clearance and Side Marker Light With Clear Lens and Red LEDs
    We do carry a number of options for clearance lights that have a clear lens and red LEDs, but the red equivalent of the Thinline LED Mini Clearance and Side Marker Light - Clear Lens - Amber # AL91CAB has a red lens as opposed to a clear lens; it is the Thinline LED Clearance and Side Marker Light # AL91RB. If you want to go this route you can mount it with Grommet # A91GB (recessed mount) or Mounting Bracket # A91BOB (surface mount) with Right Angle 2-Wire Pigtail # A46PB. For similar...
    view full answer...
  • How Does Part A91BOB Mount To The Trailer and Are The Lights It Holds Submersible
    I have a solution for you, but we don't have any clearance lights that would mount with the white bushing you're referring to. If you went with the # AL191AB and # AL191RB like you mentioned you would need the # A91BOB mounting plates to mount them onto your trailer. These can be secure with a nut/bolt or with a self tapping screw into the trailer frame and you can use the same size screw/bolt as the bushings to make sure it's a secure connection. You will also need the 2 Wire Pigtail #...
    view full answer...
    Image 1 for
  • 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...
  • Availability Of White Replacement Fender For 2003 Shoreland'r Trailer W/ ST205/75R15 Tires
    I sure can! Based on the picture you provided the correct replacement fender for your trailer is going to be the Plastic, Single-Axle Trailer Fender w/ Top and Side Steps - White - 13" to 15" # PF11X35W which will work perfectly with the ST205/75R15 tires on your 2003 Shoreland'r Trailer and closely resembles your current fender. You will also need mounting brackets # PF1135-BKT-2 to mount the fender to your trailer. In regards to the clearance lights I will need to know the length...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Wiring and Bracket for an Optronics AL91AB
    We definitely have the wiring and brackets needed to get you up and running. With that being said, you will need the Right Angle 2-Wire Pigtail # A46PB and the Mounting Bracket for Optronics AL91 # A91BOB. The # AL91AB lights will snap into the # A91BOB and then the # A46PB will plug directly into the back.
    view full answer...
  • Optronics Mounting Bracket with Wedge
    I have a solution for you but I am sorry I am not seeing anything in our system or online with A-91G15B. It may be an outdated part that has been discontinued. I would guess someone just used a different mounting bracket on one of the sides. We do have an angled mounting bracket that is similar to the item # A91GB you referenced. It is Mounting Grommet w/ Built-in Wedge for A91 or AL91 Series Lights - Black item # A91GZB. The black PVC grommet has built-in wedge that allows A/AL91 series...
    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...
  • Replacement Fender for Single Axle Escort Boat Trailer
    The only white fenders we have that will fit your 15" wheels are the # PF11X35W-2. We also have reports that this was a match for a 2000 Escort boat trailer, so it is likely this is the same part. If you decide you only want to place the one fender we do have a single fender available as well # PF11X35W. We don't have the same mounting bracket style so you would need the # PF1135-BKT-2. The mounting holes on the brackets are 3-5/8" apart so you would need to acquire U-bolts from your local...
    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...
  • 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 check out.
    view full answer...
  • Replacement Optronics Clearance/Marker Lamps to Replace Peterson PM152
    The Optronics # AL82RB would work as a replacement for the Peterson PM152 lamp, but from what I found on Peterson's website, the PM152 features two prongs on the back which is more like the # AL91RB from Optronics. Either would work for you, but I'd use the # AL91RB, assuming you have the 2-wire pigtail like # A46PB already wired up on your trailer.
    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...
  • Replacement Trailer Clearance Light for PM150
    The most similar trailer clearance lights we offer to replace the PM150 lights you have now would be the Thinline LED light part # AL91RB. For a replacement harness that would plug into this you'd need the part # A46PB and then for a grmmet part # A91GB for a flush mount or part # A91BOB for a bracket for surface mount.
    view full answer...
    Image 1 for
  • Can the Optronics AL91AB Light Be Mounted Vertically
    Yes, you can mount this Optronics Trailer Light # AL91AB 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 # AL91AB. I attached a review video for this product for you to check out also.
    view full answer...
  • Wiring Pigtail and Mounting Bracket Options For Installing Thinline LED Clearance And Marker Lights
    The Thinline LED Clearance and Side Marker Light # AL91AB require certain mounting brackets and plugs that are either already installed on the trailer or are available separately. A Right Angle 2-Wire Pigtail # A46PB will work with the Grommet # A91GB if you are looking to recess the light. Or Mount Brackets # A91OB and # A91BOB if you want to mount them on a surface with the wiring running behind the bracket. The Plug - Single Wire # A91LW is used for Mounting Brackets # A91BB and...
    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...
  • 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 Bracket...
    view full answer...
    Image 1 for
  • 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 have added...
    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...
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Info for this part was:

Employee Patrick B
Expert Research:
Patrick B
Employee Jameson C
Expert Research:
Jameson C
Employee Adele M
Updated by:
Adele M
Employee Laura H
Updated by:
Laura H
Employee Amy B
Updated by:
Amy B
Employee Brian T
Updated by:
Brian T
Employee Noah M
Updated by:
Noah M
Employee Cole B
Installed by:
Cole B
Employee Chris R
Video Edited:
Chris R
Employee Shane H
Test Fit:
Shane H
Employee Jonathan Y
Video by:
Jonathan Y

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