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Grommet for Optronics A91, AL82, AL90, AL91, or AL191 Series Trailer Lights - Black PVC

Grommet for Optronics A91, AL82, AL90, AL91, or AL191 Series Trailer Lights - Black PVC

Item # A91GB
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Black PVC grommet lets you install an Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer light. Recessed-mount design. Provides shock protection to extend the life of the lamp. 1-800-940-8924 to order Optronics accessories and parts part number A91GB or order online at Free expert support on all Optronics products. Great prices and Fastest Shipping for Grommet for Optronics A91, AL82, AL90, AL91, or AL191 Series Trailer Lights - Black PVC. Accessories and Parts reviews from real customers.
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  • Reviews (328)
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Optronics Accessories and Parts - A91GB

  • Trailer Lights
  • Mounting Hardware
  • Grommet
  • Rectangle
  • Optronics
  • 3-5/16 Inch Long

Black PVC grommet lets you install an Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer light. Recessed-mount design. Provides shock protection to extend the life of the lamp.


  • Grommet for Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer clearance/side marker lights
  • Recessed-mount design
  • Offers shock protection to extend the life of the lamp
  • Sturdy, black PVC construction
  • Two-wire harness for light sold separately


  • Dimensions: 3-5/16" long x 1-15/16" wide x 1/2" deep
  • 3-Year warranty

dimensions of grommet

Grommet is a direct replacement for:

  • Uni Bond GR1225
  • Wesbar 221588
  • Truck Lite 15702
  • Peterson 150-181

A91GB Optronics Black PVC Flush-Mount Grommet for A91, AL82, AL90, AL91, or AL191 Series Trailer Clearance/Side Marker Lights

Alternate part number: A-91GB

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Grommet for Optronics A91, AL82, AL90, AL91, or AL191 Series Trailer Lights - Black PVC - A91GB

Average Customer Rating:  4.9 out of 5 stars   (328 Customer Reviews)

Black PVC grommet lets you install an Optronics A91 Series, AL82 Series, AL90 Series, AL91 Series, or AL191 Series trailer light. Recessed-mount design. Provides shock protection to extend the life of the lamp.


Perfect fit. One worries that parts for an older trailer will not be available or will not fit. Very fast shipping - in fact, I got an email saying they could ship even faster with an almost identical part. I declined and it still came in a couple of days.

Still working great. No problems.
James - 10/31/2022
Still working fine.
James - 10/31/2022


My part was promptly shipped and i received it in a fair time. The part fit just right and is working properly. Thank you etrailer


Perfect fit! I was extremely worried that I would have to endure a lot of modification due to the age of my trailer, but found exact replacement parts.




Thank you so much. Had to replace Trailer lights on my boat, couldn’t find lights anywhere. Was leaving in 6 days. You had everything I needed and had them shipped to me in time for my trip. And the order was correct with no issues. Thanks again


Excellent, perfect fit. Will buy again from etrailer if I have to again.

Theyve been working great. Hardest part was finding out the proper part number from the trailer manufacturer to order the right one. The products are still working great.
Dean - 04/30/2019


Great OEM replacement parts and great prices. Easy to order and fast shipping!! I have already referred friends.


This grommet fit my Karavan fender mounted trailer right side marker perfectly. Easy to order and arrived promptly.


Exactly as advertised!


It fit my discontinued trailer perfectly


A little different than the lights on my 2002 EZLoader boat trailer. I think it is better than those that came as originals. I ordered enough to upgrade all of the running lights now and they are led and so nice and bright.


Item was exactly as described and fit p erfectly


Easy to order, quick delivery, very decent pricing


I bought the whole set of LED lights - side and front side marker, tail lights, rear marker bar. It was quite a project getting them all in as they were of course slightly different than the 13-year old originals. But it turned out well and I was very pleased with the quality of all the components.

All trailer parts are doing well. Saltwater even.
Jim S - 10/17/2017


Easy order and prompt service. I would recommend them.


Great, brand name products and some hard to find LED side marker lights. Refurbished an old EZ Loader boat trailer for carrying kayaks. Old incandescent lights were rotted off of the frame and the side marker lights in the fiberglass fenders were inside rubber grommets that were dry rotted. Etrailer had all the replacement lights, available in LED, and beat the price of any other option. Quality products. Delivered in 2 days under a free shipping promo. Etrailer is saved to my favorites for any trailer needs. Pic of the Yak project attached. New tail, fender and side marker LEDs!


Good product - just what I needed


I have been looking three years for this grommet locally in trailer/hitch shops in town or through boat dealers.

Just happened to find this on etrailer

My new ranger trail fenders look better the the original. Appreciate the promptness and support finding what I needed.
Fred D - 08/08/2015


excellent service. perfect order. received quick!


had to use these instead of the original angled wedge but they fit in good and honestly I don't think you would know the difference


Working on 1982 tandem axle boat trailer replacing all lights to led.
etrailer is the only one I found online that gave the dimensions of their lights & as a plus videos of them. Super store they are on top of everything makes all other competitors look stupid . Thanks for everything because of your attention to detail all the lights & light grommets were a direct fit saving me lots of time not having to retro fit anything. ANCHOR'S UP !!!


Folks, I decided to completely revitalize/upgrade my 20 year old bass boat trailer and found that not only could i find all the updated parts i needed, (led lights and urethane bow rollers, etc), at one location, additionally has a video for just about each part, where they share different measurements etc that may not be on the standard part description. These videos provided me with all the information i needed while configuring my retrofit. Additionally, when I placed my order, I received a personal email from the guy who packed my shipment., confirming that all the parts i ordered where in stock and now on the way. I typically never write these type of endorsements, but I felt compelled to write this one. Great service and all the parts I purchased have met my expectations. I'll be back when I need additional trailer parts.


i ordered two fenders for my boat trailer got here quick and put them on and cant complain they look great and are real sturdy


The grommet is much more beefy and supportive from shock than the original


It matches the OEM gasket on my Phoenix trailer. The shipping was very fast and I will definitely do business with again.

Just like new
Dan N - 05/27/2015

Show More Reviews

See what our Experts say about this Optronics Accessories and Parts

  • Hole Size Needed to Install Flush Mount Grommet for Trailer Clearance, Side Marker Lights
    The Optronics Flush Mount Grommet for A91 and AL91 Series Trailer Clearance and Side Marker Lights # A91GB, will fit a hole that measures 2-7/8 inches across and 1-1/2 inches tall. You will want to round the corners for a snug fit. This rubber grommet gives shock mount protection that extends the life of the lamp. I have included a video review of this part for you to check out.
    view full answer...
  • Will Replacement Grommet # A91GB Work for Me
    The Flush Mount Grommet, # A91GB measures 3-5/16" long x 1-15/16" wide x 1/2" deep and is used for flush mounting Series 91 lights. This grommet will work as an exact replacement for: Uni Bond # GR1225 Wesbar # 221588 Truck Lite # 15702 Peterson # 150-181 In order to make sure that we have the correct grommet, I will need the numbers off of your taillight housing. Please send me an email with those numbers and I would be happy to help you locate the correct replacement grommet.
    view full answer...
    Image 1 for
  • How Does Grommet for Optronics Taillight # A91GB Install
    If you want to see how the grommet part # A91GB installs check out the install video link I attached to this page. Basically these fit into a cut out hole on the trailer fender.
    view full answer...
  • Grommet Recommendation for the Trailer Clearance and Side Marker Lights A91AB
    The Optronics Flush Mount Grommet for # AL91AB Series Trailer Clearance and Side Marker Lights # A91GB, will fit a hole that measures 2-7/8 inches across and 1-1/2 inches tall.
    view full answer...
  • Options to Mount Optronics A91 and AL91 Series Lights
    The grommet # A91GB is inserted into a hole in your trailer. For a bracket to mount to the trailer you can use # A91BB, in black, or # A91CB, in chrome.
    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...
  • Will Optronics Side Marker Light # AL91RB Mount in Existing Rubber Grommets on Trailrite Trailer
    The Optronics Clearance/Side Marker Light, part # AL91RB, will mount in the rubber grommets that your Grote 4641 lights are installed in. I looked it up in the industry cross reference for lighting and it listed the # AL91RB light as fitting in your grommets. The rubber grommet we offer for the # AL91RB light is the Optronics Flush Mount Grommet, part # A91GB. This is a rubber grommet that is used when mounting the light flush to the trailer. It measures 3-5/16 inches long x 1-15/16 inches...
    view full answer...
  • Install Grommet to Use with Clearance Light part # LPL91CB
    For a grommet to use with the clearance light part # LPL91CB you would want the part # A91GB which was designed for it.
    view full answer...
  • Grommet To Use with Trailer Clearance Light # AL91RB
    For the clearance light part # AL91RB we have the grommet part # A91GB which is basically a hard rubber.
    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...
  • Is there a Grommet for Peterson Clearance Light # M152A
    For a rubber grommet that will fit the Peterson clearance light # M152A you can use # A91GB. If you are looking for the plastic base we do not carry that particular model and in that case I recommend switching to light # A91AB and using bracket # A91BB with power wire # A91LW (the light grounds through one of the mounting screws with this light and bracket combination).
    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...
  • 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...
  • 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
  • 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...
  • Replacement Clearance Taillight Solution for EZ Loader 250-032130
    I looked up your EZ Loader part number and it appears to be the same design as the part # AL91AB which for the matching grommet you'd then need the part # A91GB. You'll also need the wiring harness # A46PB.
    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 have added...
    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...
  • 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...
  • 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...
  • LED Clearance Light Recommendation for Sundowner Horse Trailer
    What you have on your horse trailer is a pretty common clearance light that we do offer in red and amber as an LED. For the red you'd want the part # AL91RB and for amber part # AL91AB. You'll also need the grommet part # A91GB and the right angle pigtail part # A46PB and you'd be set.
    view full answer...
    Image 1 for
  • 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...
    Image 1 for Image 2 for
  • 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...
  • Replacement Fender Solution for 2005 Crestline Trailer
    I looked up the Shorelandr fender SK0329-01 and our closest option is the Fulton fender part # F008574 which measures 9-5/8" Wide x 42-5/8" long x 12-3/4" tall. To add clearance lights to this you'd need the part # AL91AB for amber lights, part # AL91RB for red, part # A46PB for pig tails, and for grommets # A91GB.
    view full answer...

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