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Rubber Grommet for 4" Round Trailer Lights - PVC
(237 reviews)
Price: $5.01
In Stock
Optronics
Rubber Grommet for 4" Round Trailer Lights - PVC
Part Number: A45GB
In Stock
$5.01
Retail:$10.00
You Save: 50%
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- All Info
- Reviews (237)
- Q & A (0)
- Photos
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"
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
Customer Satisfaction Score:
100% were satisfied with this product
0% of customers were not satisfied
- Wrong item was ordered
Ratings & Reviews
4.7
237 reviews
by:
Mike rain
10/11/2026
The lights and grommet worked and fit perfectly for my tanker trailer. And the price was way cheaper than truck stops and other options. With the price of fuel now gotta save money where I can. Will definitely order again as these guys were one of the only places that had what I needed with the correct 3male pin plug instead of having to cut and connect and adapt.
by:
David
06/02/2025
Fast shipping, item exactly as described, fit perfectly and look amazing.
by:
Matt F.
07/19/2016
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.
7/19/2017
Still working well and holding up to the punishment I put them through.
by:
Mark
05/06/2026
A 2.5" hole saw worked great.
by:
Derek
07/29/2021
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:
WayneE
08/16/2017
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!
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:
Steven
04/24/2026
Great quality product and purchase!
by:
nyfb4u2
08/20/2016
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
8/21/2017
After a year using this product function-ability still performing as described. I recommend this product and seller.
by:
Trailer light
05/29/2015
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.
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.
5/29/2016
Actually, It came out of the rubber gasket when we put the boat into the water====Never found it!
by:
Roger R
04/25/2020
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.
5/3/2021
Very well I should have ordered these years ago.
by:
Jeffrey
09/04/2021
Perfect for what I needed - seals for computer cable access in a desk...timely delivery...excellent!
by:
Timmy
06/18/2020
The amber led lights I received were great and I installed them in the front of my 2002 Pontiac Firebird cuz I clipped another deer and ran over a raccoon in the same night and they took out my front lights again. So, rather than try to purchase an original set of turn signal and fog light assemblies along with the expensive bulbs, I converted it over to led and it is a great upgrade for an older car. The problem is that the three color coded wires came with no directions that told me which wire was ground, park, or turn. I had to figure it out as the color codes are different on my car. I would send a pic, but it is on my cellphone.
by:
Robert
05/03/2019
I ordered a set of tail lights for my boat trailer and they shipped fast. The customer service is really great too. The product is high quality and I'm very happy with it. The only issue I had with etrailer.com is they charge far too much for shipping and they only use UPS. So people like me who have a frequent shipper contract with other freight and delivery companies can't get it shipped at a reasonable cost. It is unreasonable to me to pay just as much for shipping as the product cost. Etrailer if you are listening, please ship small things in USPS flat rate boxes and allow customers to use their frequent shipping agreements with other delivery services.
by:
madmax1
10/16/2014
The rubber grommets are fine just a little tight for my existing lights to fit in. I had to use some glass cleaner to get them to even have a chance of going in and a lot of brute force. Now I'm not sure if it is because they weren't matched with the LED's I already have or maybe the rubber is not so "rubbery" I've had issues with other "rubber" things. All in all they replaced the cracking existing grommets and they look good.
The 2" marker lights were a waste of money not because there are issues, but because I needed 2 1/2" ones so these don't fit. I ordered wrong, but the quality of the lights look good.
The 2" marker lights were a waste of money not because there are issues, but because I needed 2 1/2" ones so these don't fit. I ordered wrong, but the quality of the lights look good.
by:
Gary
06/10/2025
An exact replacement
by:
Mark
04/19/2019
I’ve used etrailer on multiple occasions and have been completely satisfied with their service and professionalism .
Mark
4/19/2020
Superb. I thank you for the service and professionalism that the company exhibited.
by:
Peggy B
02/02/2017
The product arrived quickly and was just as described. My trailer is older and I was having trouble finding replacements for the tail lights. Their sales rep, Cathy T., was knowledgeable and friendly. The next time I need parts for my horse trailer, I will go directly to etrailer.
by:
Steve
06/03/2019
Communication with etrailer has been really good.This item was back ordered and they let us know immediately.
The grommets fit well into the holes and the lights pop in snuggly.
The grommets fit well into the holes and the lights pop in snuggly.
by:
Warren
04/22/2024
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:
Michael
11/27/2017
These were a joy to install. They really make for an easy job for installing the lenses. They make a great finished look and provide a good secure seating for the lights. I have no regrets getting these - They sure were an upgrade to the old riveted lights that they replaced. Definitely recommend them.
by:
TODD C.
09/18/2019
etrailer as always has what I need, ships fast, and product is "as advertised"!
A pleasure to talk to the tech's when I have questions and even go as far as calling manufacturer to verify equipment selections.
Keep up the GREAT work.
A pleasure to talk to the tech's when I have questions and even go as far as calling manufacturer to verify equipment selections.
Keep up the GREAT work.
by:
ConnerCattleCompany
08/11/2016
Good solid grommet that holds up well. etrailer.com has great customer service and will take care of you.
by:
Mac S.
07/14/2014
Very fast response and trailer lights arrived within time limits.
No problems on delivery. Recommend etrailer for future needs.
No problems on delivery. Recommend etrailer for future needs.
by:
Hubcap
05/11/2017
My 96 Chevy ramp truck, (car hauler) has 12 total lights mounted in these rubber rings and several them were cracked and aged. These look and fit well. I'd buy them again if I needed them.
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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