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Rubber Grommet for 2-1/2" Round Trailer Lights - Flush Mount - Open Back
Optronics

Rubber Grommet for 2-1/2" Round Trailer Lights - Flush Mount - Open Back

Part Number: A55GB
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$5.76
Retail:$12.79
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This rubber grommet allows you to flush mount a 2-1/2" diameter sealed trailer light. Protects lights against shock and vibration for extended life. Open back design provides easy access to wiring. 1-800-940-8924 to order Optronics accessories and parts part number A55GB or order online at etrailer.com. Free expert support on all Optronics products. Great prices and Fastest Shipping for Rubber Grommet for 2-1/2" Round Trailer Lights - Flush Mount - Open Back. Accessories and Parts reviews from real customers.
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  • Reviews (116)
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Optronics Accessories and Parts - A55GB

  • Trailer Lights
  • Mounting Hardware
  • Grommet
  • Optronics
  • Round
  • 2-1/2 Inch Diameter

This rubber grommet allows you to flush mount a 2-1/2" diameter sealed trailer light. Protects lights against shock and vibration for extended life. Open back design provides easy access to wiring.


Features:

  • Rubber grommet allows you to flush mount a 2-1/2" diameter sealed light
  • Designed to protect your light against shock and vibration for extended life
  • Open back design provides easy access to wiring
  • Durable PVC construction
  • Flush mount application
    • Requires a 3" diameter cutout for installation


Manufacturer Cross Reference
Grommet will work as an exact replacement for:
Uni Bond # GR2500
Wesbar # 221088
Truck Lite # 10704
Grote # 91410
Peterson # 142-18
Bargman # 40-31-020


Optronics A55GB Open Back Grommet Dimensions



A55GB Rubber Grommet for Optronics 2-1/2" Round Sealed Lights - Flush Mount - Open Back

Alternate part number: A-55GB





Customer Satisfaction Score:

Ratings & Reviews

4.7

116 reviews
Review sort icon
This rubber grommet allows you to flush mount a 2-1/2" diameter sealed trailer light. Protects lights against shock and vibration for extended life. Open back design provides easy access to wiring.

by:

Products are excalty what we ordered to match what was on trailer. I placed order at 8:00pm on Wed night and two hours later order was ready to ship and I had my order Friday for weekend project. AWESOME!!!!! Can't believe they got order out that fast and correct !!



by:

These are nice, mount flush. So there better for the back of the trailers. I like the ones that make the light stick out a little for the sides.



by:

Great product, Great company. I will buy no where else when it comes to keeping my trailers up!



by:

Great product and upgrade to my old lights...great company...fast shipping...will buy more parts from this company!!!



by:

everything i ordered arrived quickly and worked great thanks etrailer



by:

I've ordered a number of parts from etrailer over the years and everything came on time and was correct it's a joy to do business with them they're very good at getting the correct part the first time



by:

Installed on a 93 Skeeter boat trailer. Very tight fit so I know it is not going anywhere. Very quick shipping.



by:

Fit great and easy installation



by:

Not very flexible and was difficult to get in the hole. Not real clear on whether or not to place the light in the grommet prior to putting in place or put in place then put light. Either way, it was very difficult and I wound up not using it.



by:

Items were as described, fast shipping and thank you Matt for your assistance



by:

Install was difficult on my 18' Corn Pro bumper pull trailer. Grommet seemed almost slightly too large for the hole, but I did finally get it to fit and it has been fine ever since for a year now.



by:

product is fine, but was not the one I needed. I ordered because it was recommended in the video and the only option listed under related parts. It was not the part I needed, so after revisiting etrailer I discovered there is another option, the other part is referenced on the page for A55GB, too late for any help.



by:

Decent grommet but doesnt work with the 2 1/2 light brackets they sell but does work with lights you will need to trim brackets if you want to use em



by:

Easy to use, great replacement holder/grommets for clearance/marker lights on trailers



by:

Direct replacement for what I had. etrailer always has the products, support, great pricing and shipping options that make shopping with them a real pleasure.



by:

Here is the light I bought from etrailer.buyers work lights and optronic marker lights. Very nice Very bright.



by:

I completely rebuilt my boat trailer and used a lot of parts from e trailer

Every part was of great quality. Very good prices and fast shipping. I would
use them again for all my trailer needs.



by:

I have a flat bed on my truck and it uses trailer lights in it. When I looked for replacements all the stores wanted $10 to $30 a peace!!! Etrailer saved me almost $100 over going to may local store. I ordered it on sunday night. I had 2 personal emails telling me my order was ready and being shipped. ON SUNDAY NIGHT!!! I had my order by Wednesday with a follow up email telling me my package was waiting for me at home. My only complaint is why other online stores can provide this service. etrailer, I will be ordering again. Thank You



by:

what can I say, the wife requested a smaller opening in her fancy ceramic birdhouse



by:

Very tight fitting. Hard to get the lights in the grommet. Make sure to check the measurments to make sure they fit your trailer. Mine were so tight fitting that I tore a couple getting them in. You can't really tell once it's in. But I guess tight is better than loose!

James R. profile picture

James R.

8/10/2013

take a file and file down the sharp lip on the back of the light, it wont cut the grommet and will fit just a little easier, an before installing, soapy water or light oil will help push it in.

Patrick B. profile picture

Patrick B.

8/14/2013

Good info. I have also found sometimes it is easiest to get the light in the grommet first, then push the two together into the hole or bracket.


by:

Perfect description



by:

This grommet does not fit PJ Trailers, It would be good if the manufacturer would specify what trailer manufacturers these would fit. I had to enlarge the hole to be able to fit the 2 1/2" clearance light

Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

11/25/2024

Hey Ray. I wish we knew exactly what trailer these parts fit perfectly in. Since there is no industry standard keeping the trailer manufacturers to track what parts they use we have to go off dimensions. This particular grommet needs a 3" diameter cutout for installation and can hold a 2-1/2" diameter sealed light.



by:

they are verey nice good looking



by:

Great price
Great shipping
Great
product
Great george j



by:

The product I purchased from etrailer is actually a rubber taillight grommet for trailers, but I use it for a special application on a custom car. We have a custom engine cover on our 55 plymouth wagon and the hole in the cover for the radiator cap was cut too big. I use the rubber grommet to wrap the stainless radiator cap and the gap in the cover does not show. Sometimes with I take the engine cover off to service the engine, I keep loosing the grommet and that is why I keep buying more. This is my 3rd order and this time I purchased 5 items. The product was very easy to order fast shipping and the price was right. If I ever need to get more product I'll always come back to etrailer.


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See what our Experts say about this Optronics Accessories and Parts

  • What Size Hole is Needed to Mount Optronics 2-1/2 Inch Side Marker Light with Reflector and Grommet
    The Optronics Sealed 2-1/2 Inch Round Trailer Clearance, Side Marker Light # MC57AB along with the Round Grommet - Floush Mount # A55GB will require you to cut a 3 inch diameter mounting hole. You will also need the Right Angle 2-Wire Pigtail Plug # A46PB to pair with the female connection on the Optronics light. I have attached video reviews of these products for you to look at.
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  • What Size Hole Needs to be Drilled to Install 2-1/2 inch Optronics Clearance Light MC57RB
    The Sealed, 2-1/2" Round Trailer Clearance, Side Marker Light with Reflector # MC57RB requires the use of a the Grommet part # A55GB to install. This grommet will require a 3 inch hole to be drilled. For a pigtail harness you would need the part # A46PB as well.
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    We have 2-1/2 inch clearance lights but they require a 3 inch hole for the grommet like part # A55GB to install. For that you'd want the part # MCL51RB. The next size down is 2 inch but the hole required is 2-5/16 inch which wouldn't work for you.
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  • Does Metal Mounting Surface have to be a Certain Thickness to Use 2-1/2 Inch Round Light Grommet
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  • Trailer Wiring and Lighting Replacement for Trailer with 4.5 inch Red and 2.5 inch Amber Light
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    The red Optronics LED clearance light part # MCL59RB is 2-1/2 inches in diameter and designed to fit in grommets. For amber then you'd want the part # MCL59AB and you'd be set. These are very reliable and have reflectors built into them as well. If you needed grommets you'd want the part # A55GB and for right angle pig tail harnesses part # A46PB.
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  • What Size Hole Is Needed For Mounting Optronics Trailer Light, # MC57AB, In A Rubber Grommet
    To mount the Optronics Trailer Light, # MC57AB, in a rubber grommet you would use the Optronics 2-1/2 Inch Round Grommet - Flush Mount, # A55GB. This grommet will require a 3 inch mounting hole. To mount the Optronics Miro-Flex, Sealed, 4 Inch Round, Stop/Turn/Tail Light Trailer Light, # STL23CCRB, in a rubber grommet you would use the Optronics Rubber Grommet for 4 Inch Round Trailer Tail Lights, # A45GB. This will require a 4-1/2 inch mounting hole.
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    The SAE AP2 98 on the lens indicates the lens rating but it isn't a part number. Light # MCL59RB is 2-1/2 inches in diameter and takes grommet # A55GB and harness # A46PB. But none of the clearance lights we have that are round and 2-1/2 inches have the same lens rating.
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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Brian T
Updated by:
Brian T

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