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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 Accessories and Parts - A91BOB
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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. Call 800-298-1624 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 (74)
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Optronics Accessories and Parts - A91BOB

  • 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.


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 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   (73 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:

God I love these replacement lights ! they fit my Trailstar trailer perfect . Do you have the little ones for corner by the tires ? If so I will take them too.



- A91BOB
by:

Worked great with the Amber LED side marker lights.



- A91BOB
by:

There wasn't a screw in for the lights so I had devise a way to connect them to grid and power



- A91BOB
by:

Exact replacement for what came with my custom trailer. Very well made



- A91BOB
by:

Easy to install great material and worked perfectly with the replacement LED bulbs for a clean factory look.



- A91BOB
by:

Nice product, quality made, fast shippi ng



- 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.



- 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!!



- 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.



- A91BOB
by:

mounted to hold Optronics Mini Thinline LED clearance lights



- A91BOB
by:

I actually ordered these by mistake, I wanted the rubber grommet mount but these fit the lights perfectly just not what I needed.



- 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!



- 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.



- 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!!!



- A91BOB
by:

These marker lights are great and easily mounted and wired into my Shorelander trailer.



- 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



- A91BOB
by:

Exactly what I needed.



- 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



- A91BOB
by:

Smooth transaction



- 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!



- 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.



- A91BOB
by:

Work great



- A91BOB
by:

Great parts.



- A91BOB
by:

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


Comments
Still working as it should NO PROBLEM WITH THE LIGHTS
Richard - 09/01/2020


- A91BOB
by:

Good little bracket for the price.


Comments
Working great. Still holding a good seal.
Chris G - 02/19/2018


25
74
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Ask the Experts about this Optronics Accessories and Parts

  • 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 #...
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  • 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...
  • 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...
  • 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...
  • 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...
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  • 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...
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  • 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...
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  • 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...
  • 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...
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  • 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...
  • 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...
  • 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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  • 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...
  • 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...
  • 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...
  • 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...
  • Incandescent Trailer Clearance Light that Uses 2 Wires
    In red you'd want the part # AL91RB or in amber you'd want # AL91AB for the submersible incandescent lights. For a two wire harness like you need you'd want the part # A46PB with grommet part # A91GB or bracket # A91BOB.
    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...
  • 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 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...
  • 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...
  • 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...
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  • 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
  • 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...
  • 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...
  • 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...

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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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