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Rubber Grommet for 4" Round Trailer Lights - PVC
Optronics

Rubber Grommet for 4" Round Trailer Lights - PVC

Part Number: A45GB
In Stock
$5.07
Retail:$7.99
You Save: 37%
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This black PVC grommet allows you to flush mount your Optronics 4" round trailer light. Shock mount protection extends the life of the lamp. Recessed mount. Durable plastic construction. 1-800-940-8924 to order Optronics accessories and parts part number A45GB or order online at etrailer.com. Free expert support on all Optronics products. Great prices and Fastest Shipping for Rubber Grommet for 4" Round Trailer Lights - PVC. Accessories and Parts reviews from real customers.
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  • Reviews (213)
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Optronics Accessories and Parts - A45GB

  • Trailer Lights
  • Mounting Hardware
  • Grommet
  • Optronics
  • Round
  • 4 Inch Diameter

This black PVC grommet allows you to flush mount your Optronics 4" round trailer light. Shock mount protection extends the life of the lamp. Recessed mount. Durable plastic construction.


Features:

  • Grommet allows you to flush mount your Optronics 4" round trailer light
    • Designed to fit Optronics 45 Series lights (sold separately)
  • Shock mount design cushions light against vibration and jolting
  • Open back provides easy access when wiring
  • Light snaps into grommet for a finished look
  • Durable PVC construction
  • Recessed mount installation - hardware not included
    • Requires 4-1/2" cutout


Specs:

  • Outer diameter: 5-3/8"
  • Mounting depth: 1-1/16"


Optronics PVC grommet for 4 Inch Round Flush Mount Lights Diagram

Manufacturer Cross-Reference

Grommet will work as an exact replacement for:

  • Uni Bond GR4000
  • Wesbar 224088
  • Truck Lite 40700
  • Grote 91740
  • Peterson 426-18
  • Bargman 40-01-020


A45GB Optronics Rubber Grommet for 4" Round Sealed Trailer Tail Lights - Recessed Mount

Alternate part number: A-45GB




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

213 reviews
This black PVC grommet allows you to flush mount your Optronics 4" round trailer light. Shock mount protection extends the life of the lamp. Recessed mount. Durable plastic construction.

by:

GREAT



by:

right size



by:

Quick shippingProduct arrived faster than expected and the right part.



by:

Quick shipping and performed as advertised.



by:

the grommet didn't fit so i re-used the old one. apparently the grommet size varies with applicaiton.



by:

The grommet is excellent quality. Heavy duty construction and fit the light and frame assembly perfectly. The shipping was extremely quick, and the price just right. Would recommend etrailer.com highly.



by:

Your standard rubber grommet for 4" lights. Fits something like STL23CCAB perfectly, as well as a 4" taillight I had already.



by:

Fast shipping, item exactly as described, fit perfectly and look amazing.

Brooke M. profile picture
Etrailer Expert

Brooke M.

6/5/2025

It does look awesome, David! Thanks for sending in the photo :) Is this on a trailer or motorhome? Can't quite tell

Pull B. profile picture

Pull B.

6/6/2025

@BrookeM
David profile picture

David

6/6/2025

@BrookeM pull behind 29' Forest River
Brooke M. profile picture
Etrailer Expert

Brooke M.

6/6/2025

@David Sweet! Always wanted one of those LOL have been able to take any trips this year?


by:

An exact replacement



by:

These are good grommets for the price. I've purchased a few over the years and they have never failed. I've only replaced them because they got some over spray from paint on them or something like that and it's cheaper and easier just to buy another pair and have them look brand new again. I use them on a Jeep built for rock crawling and I've attached a picture of one of them on the Jeep but this is an old set and not the best picture but you get the idea. They hold up well to abuse.

Matt F. profile picture

Matt F.

7/19/2017

One Year Later

Still working well and holding up to the punishment I put them through.



by:

Product as described. Service and communication excellent.

Thomas profile picture

Thomas

2/17/2025

One Year Later

After a year of almost daily use, the lights still look and work well. Im glad that I bought them.

Jameson C. profile picture
Etrailer Expert

Jameson C.

2/17/2025

@Thomas Awesome to hear!


by:

The grommets did not fit into my original openings. I had to use a die-grinder to enlarge the holes by 1/8” all the way around. Once complete, they fit pretty good.



by:

Fits a little loose but once all in and lite in its good enough



by:

i never had a bad part



by:

I ordered the STL101RB Trailer Tail Light - Stop, Tail, Turn, Backup - LED to replace the standard tail lights on my Yamah Drive G19 golf cart. They replaced to stock ones perfectly as a neat way to add a backup lights for a custom feature. The backups led are actuated by the reverse switch on the dash.

It should be noted that the ground terminal on the two wire pigtail connection is not wired internally to the backup LEDs. They rely on the ground supplied by the three wire pigtail. Not a big deal, but worth noting. It throws a curve when bench testing.

These lamps add a nice custom touch!



by:

I've ordered a variety of items over the years from etrailer usually to repair and sometimes upgrade trailers. Etrailer has the items I'm after. They get the order correct and shipped in a timely manner. With that kind of service I'll keep coming back. Thank You.



by:

Great customer service! I had an issue with the order I called customer service and they went above and beyond to assist with the issue. It was resolved quickly and professionally. I was very pleased with the response which gave me faith that I will definitely purchase from them again! Thank you!! Happy Thanksgiving to all!



by:

really nice quality



by:

super tight fit. used a little lube to install. no cracking or deterioration as of 1 year



by:

Items arrived as described. Good quality, price and fast delivery made this purchase an overall great deal. The lights, cables and grommets I haven’t test them, waiting for my truck replacement bumper to arrive in September and have the body shop install them for me. I will update my review, but for now I recommend this products and the seller.

Nyfb4u2 profile picture

Nyfb4u2

8/21/2017

One Year Later

After a year using this product function-ability still performing as described. I recommend this product and seller.



by:

Very pleased now other drivers can see my tail lights. Better yet turn signals & stop lights are bright .I would recommend these lights to any drivers that want to be safe on the highways

Roger R. profile picture

Roger R.

5/3/2021

One Year Later

Very well I should have ordered these years ago.



by:

I have been looking for a long time to find a replacement for this light.
I could buy others, or kits etc, but I wanted this same light.
I contacted the company and explained what I needed.
They had it in stock as well as sealed light, the wires and connections.
It was delivered Very promptly, within a matter of days.
Excellent service.

Trailer L. profile picture

Trailer L.

5/29/2016

One Year Later

Actually, It came out of the rubber gasket when we put the boat into the water====Never found it!



by:

Perfect for what I needed - seals for computer cable access in a desk...timely delivery...excellent!



by:

I’ve used etrailer on multiple occasions and have been completely satisfied with their service and professionalism .

Mark profile picture

Mark

4/19/2020

One Year Later

Superb. I thank you for the service and professionalism that the company exhibited.



by:

Works perfect. Would buy again


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213
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Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
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Employee Michael H
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Michael H
Employee Jameson C
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Employee Andrew K
Video by:
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Employee Kathleen M
Installed by:
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Updated by:
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Employee Brian T
Updated by:
Brian T
Employee Chad S
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