Rubber Grommet for 4" Round Trailer Lights - PVC
(149 reviews)
Price: $4.50
In Stock
Rubber Grommet for 4" Round Trailer Lights - PVC
Item # A45GB
Retail:$6.95
Our Price: $4.50
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- All Info
- Reviews (149)
- Q & A (97)
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- Why etrailer?
Optronics Accessories and Parts - A45GB
- Trailer Lights
- Mount Parts
- 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
California residents: click here
Customer Reviews
Rubber Grommet for 4" Round Trailer Lights - PVC - A45GB
Average Customer Rating: 4.7 out of 5 stars (149 Customer 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.
- A45GB
by: Derek07/29/2021
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.
- A45GB
Roger R - 05/03/2021
by: Roger R04/25/2020
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
Comments
Very well I should have ordered these years ago.
Roger R - 05/03/2021
- A45GB
by: Jeffrey09/04/2021
Perfect for what I needed - seals for computer cable access in a desk...timely delivery...excellent!
- A45GB
by: WayneE08/16/2017
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!
- A45GB
Matt F - 07/19/2017
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.
Comments
Still working well and holding up to the punishment I put them through.
Matt F - 07/19/2017
- A45GB
by: Mark05/02/2021
Lights they recommend use a grommet. Very hard to get light in grommet in bracket. I will probably be returning on light and grommet. I've tried everything short of using hammer to get light in grommet. Would have thought bolt/screw on light would have been recommended
- A45GB
by: Timmy06/18/2020
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.
- A45GB
by: Ron07/19/2021
They worked well once I got them installed. I had to relieve the hole in the back fiberglass cap, which took some trial and error.
- A45GB
by: William07/25/2021
very, easy, fit exactly. very fast service. And a great price.
- A45GB
by: Laura S.06/04/2018
Hi guys, I'm usually the one answering reviews These guys are great! My client emailed the link & told me to order these for our horse trailers. They've held up, to the point, we're not even close to needing to replace them. We haul quite a bit. These lights have been tried & true, day & night. When you're hauling a lot of livestock, you want people that have no clue what that entails, to see your lights well before they get near your livestock ; these lights do the job perfect! We've outfitted 3 separate trailers with this company. We restored wires, lights, & pretty much everything along those lines ;from a 2 horse, to a large stock, & a gooseneck. All the parts come quickly, are all there, & work & fit great. What more can you ask for?!
- A45GB
by: Eric10/30/2020
Prefect fit, quick shipping
- A45GB
by: Robert05/03/2019
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.
- A45GB
by: PJ11/10/2020
Working well the trailer is parked out in the weather all year and the grommets are not hard of cracking
- A45GB
Mark - 04/19/2020
by: Mark04/19/2019
I’ve used etrailer on multiple occasions and have been completely satisfied with their service and professionalism .
Comments
Superb. I thank you for the service and professionalism that the company exhibited.
Mark - 04/19/2020
- A45GB
by: Jj08/18/2020
USED etrailer FOR MY RV...EXCELLENT. GAVE THEM ANOTHER OPPORTUNITY FOR MY WORK TRUCK. etrailer DID NOT LET ME DOWN! RECEIVED MY ORDER AHEAD OF SCHEDULE. QUALITY EQUIPMENT AND SERVICE...NICE!!!!
- A45GB
by: Raymond05/15/2021
Still good
- A45GB
nyfb4u2 - 08/21/2017
by: nyfb4u208/20/2016
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.
Comments
After a year using this product function-ability still performing as described. I recommend this product and seller.
nyfb4u2 - 08/21/2017
- A45GB
by: Steve06/03/2019
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.
- A45GB
by: Wilbur05/21/2019
I fought with these PVC grommets for 10 minutes then gave up. Waaay to stiff. I'm going to stick with rubber grommets and change them out when they start cracking and shrinking.
- A45GB
Trailer l - 05/29/2016
by: Trailer light05/29/2015
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.
Comments
Actually, It came out of the rubber gasket when we put the boat into the water====Never found it!
Trailer l - 05/29/2016
- A45GB
by: madmax110/16/2014
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.
- A45GB
by: Peggy B02/02/2017
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.
- A45GB
by: KC02/18/2021
Just what I needed
- A45GB
by: Yaroslav02/03/2018
Arrived on time, as expected from 5-star provider, thanks
- A45GB
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.
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Ask the Experts about this Optronics Accessories and Parts
- Dimension of Thickness for Optronics Rubber Mounting Ring A45GBThe Optronics rubber mounting ring # A45GB will fit into the hole that is 4-1/2 inches round, but the thickness of the mounting ring is 1-1/16 inches in depth. So if your plywood panel accommodates this amount of depth, then this rubber mounting ring will work well for you.
view full answer... - What is the Minimum Thickness of the Surface that Rubber Grommet A45GB Can Be Mounted ToRubber grommet # A45GB is 1-1/16 inches deep but the material you are mounting the light in does not have to be that thick. A minimum 3/16 inch should be sufficient. Metal (aluminum or steel) would be the preferred surface. Fiberglass and other similar materials can flex much easier which could result in the light popping out of the hole. But this is not likely if the hole is cut to the proper size (4-1/2 inch diameter).
view full answer... - Parts Needed to Install 4-1/2 inch Diameter Light in TrailerYes, all three of the parts you mentioned are what's needed to install a light assembly in a 4-1/2 inch diameter hole. The light part # ST45RB fits the # A45GB, and the pig tail part # A4PB is the correct one as well.
view full answer... - Size Hole Needed to Install 4 inch Trailer Taillight that is Flush MountedWhen used with the # A45GB grommet, a 4-1/2 inch diameter hole is needed to flush-mount a 4 inch taillight.
view full answer... - What Size Hole is Required for Installing Black Rubber Trailer Light Grommet # A45GBWe have actually had this question before and we determined that the Black Rubber Grommet, # A45GB, mounts in a 4 1/2 inch diameter hole. It is compatible with a light like # STL23RB. You will also need a wiring harness like # A47PB.
view full answer... - How Thick Of a Plate Will the Optronics Rubber Grommet for 4 Inch Round Lights FitI went out to our warehouse to measure the seat of the # A45GB grommet that you referenced. It seems like it will be a tight fit for your 3/8 inch bumper. The grommet seat measures 0.24 inches. Another option for mounting a 4 inch round light on your trailer, instead of the bumper, is to use the Trailer Light Mounting Bracket # BK45BB. This may not work for your application, but it could also be modified to work how you need. This bracket will work well with the rubber grommet # A45GB.
view full answer... - What Size Hole is Required to Install Optronics Grommet A45GBThe grommet part # A45GB that you referenced requires a 4-1/2 inch diameter hole be cut to install. I looked up the light you mentioned and it is a 4 inch diameter light like what this is designed to fit. I attached an install video for you to check out as well.
view full answer... - Can Rubber Grommet and the Optronics Clearance Light be Used on 1/4 in Thick AluminumYes, the Rubber Grommet # A45GB and the grommet of the Sealed, Uni-Lite Mini LED Side Marker # MCL11RKB can be used on a 1/4 inch thick hole in aluminum.
view full answer... - Hole Size Information Needed for Mounting Trailer Light Grommet A45GBIt doesn't really have a wall thickness requirement. As long as the hole is 4-1/2 inch in diameter this will fit and work well. It is compatible with a light like # STL23RB. You will also need a wiring harness like # A47PB.
view full answer... - Fog Lamps for Aftermarket Bumper on 2007 Toyota FJ CruiserIf the hole in your bumper is actually slightly larger than 4 inches in diameter, I have what might be the perfect solution for you. The Rampage Fog Lamp Kit, part # RA5083059 is specifically designed to be mounted into a Rampage aftermarket bumper. You didn't mention who manufactured your bumper, but I believe this product would be the closest thing we offer to what you're looking for. The lamp is Halogen, and would sit in opening of your bumper, but it would not mount with a grommet....
view full answer... - Replacement Backup Light for Peterson 426E on MotorhomeThe Peterson 426E is a grommet mount lamp which is 4 inches in diameter. We don't offer that particular lamp, but it cross referenced to several lamps offered by Optronics. Here's what's available: • # BU45CB is a in incandescent lamp that could be used as a reverse light. Compatible with 12V systems • # BUL06CB is a 6-diode LED lamp. 12V compatible • # BUL11CB is a 10-diode LED. 12V compatible • # M826C-7 is a 7-diode LED. 12V compatible • # BUL53CB is a 36-diode LED. 14V compatible •...
view full answer... - 4 Inch Round Trailer Tail Light Cutout SizeThe closest to 4 inch round lights we have is the Optronics LED Trailer Utility Light # BUL43CB or Trailer tail Light # STL55RB which are actually 4-5/16" diameter x 1-15/16" thick. These are designed to fit the Rubber Grommet for 4" Round Trailer Lights - PVC # A45GB which requires a 4-1/2 inch diameter cutout. You will also need wiring pigtail # A47PB. If you are interested in the Optronics Trailer Tail Light - Stop, Turn, Tail - Incandescent - Round - Red Lens # ST40RB you asked...
view full answer...![Image 1 for]()
- Brightest Round LED Backup Trailer LightThe Light Guide LED Backup Light # BUL603CB you referenced is certainly a nice, bright LED backup light, but the brightest is the GloLight LED Backup Light for Truck or Trailer # BUL101CB, as you can see by the accompanying photo. This light requires Grommet # A45GB and Right Angle 2-Wire Pigtail # A49PB. This does come packaged together with the GloLight LED Backup Light w/ Grommet and Pigtail # BUL101CKB. I have added links to video reviews for you as well which I highly recommend...
view full answer...![Image 1 for]()
- Which Trailer Tail Lights Work With 4" Trailer Light Mounting Bracket BK45BBI would be happy to help! The Trailer Light Mounting Bracket for 4" Trailer Lights, Steel - Black Powder Coat # BK45BB you were looking at works with 4" round lights so I recommend the Optronics LED Trailer Tail Light - Stop, Tail, Turn - Submersible - 21 Diodes - Round - Red Lens # STL55RB. You will also need Rubber Grommet # A45GB and Wiring Pigtail # A45PB. I recommend using heat shrink butt connectors # DW05744-5 for a weather tight connection. I included videos of the...
view full answer... - How to Remove Tail Light That Has Rivets Holding the Grommet in PlaceIt all depends on how the light installs. If it is like the Optronics part # ST45RB that installs with the grommet # A45GB then you should be able to remove it without removing the grommet. You may need access behind the light to do this though. If your tail light is more like the Optronics part # ST40RB though where the grommet is part of the light then you will need to remove the rivets by drilling them out and then use new rivets or even screws to install the new tail light (or the...
view full answer...![Image 1 for]()
- Recommended Grommet for Optronics 4 Inch Round LED Light # STL55RBBoth the Rubber Grommet # A45GB and the Notched Rubber Grommet # A45GNB that you referenced will fit and work well with the Optronics 4" Round LED Light # STL55RB. The only difference between the two grommets, as you mentioned, is the notched cut out in the lower portion of the unit. This is not necessary for wiring or fitment, but it will allow for a bit of an easier install.
view full answer... - Recommended Trailer Tail Lights for 4.25 Inch OpeningThe LED Trailer Tail Light # STL42RMB has screw mounting holes that are 4-1/4 inches on center. The smallest hole this light will fit is 4 inches. You will have difficulty mounting this light as your opening matches the mounting hole locations so you won't get proper hold. You may want to use the Rubber Grommet for 4" Round Trailer Tail Lights # A45GB along with the # STL55RB which won't use any screws to mount. You will also want the 3 wire pigtail # A45PB.
view full answer...![Image 1 for]()
- Flush Mount, Submersible LED Back Up Light Recommendation for a TrailerThe brightest LED light, flush mount, submersible, that can be used as a back up light, is going to be the round light # BUL23C24B. But this is a 24 volt light and it has 27 diodes. For a 12 volt back up light that is flush mount and submersible would be # BUL10CB or # BUL11CB. For the BUL10CB that you have referenced, you will also need grommet # a70gb, and a wiring harness # A49PB. For the round light # BUL11CB, you would need grommet # A45GB. and harness # A45CB.
view full answer... - Replacement Tail Light for 2009 Ranger Boat TrailerSometimes it is possible to replace a broken trailer light with one that uses a different type of installation but since we offer a very wide range of lights you may very well be able to find an exact OEM-style replacement. It sounds like you have a light like # STL42RB which has a 3-hole mounting flange. I linked our main page for trailer tail lights of all shapes and sizes. On the page you can simply click on the filters for light shape, light type (LED or standard bulb), lens color,...
view full answer... - Are there Replacement Tail Lights for a 1982 Scamp TrailerIn order to determine which replacement lights will fit your 1982 Scamp trailer, you will need to find the manufacturer and model number of the light assembly. This could involve removal of the assembly. If you see numbers on the lens, those are not the correct numbers. If you cannot find any manufacturer/model number information, you will need to measure the diameter of your existing tail lights and any other dimension that you can. You will also need to determine how they mount to...
view full answer... - Difference Between Grommets # A45GB and # A45GNB The difference is that the grommet part # A45GNB has a notch cut in the lower portion that seals to the mounting hole. This allows the grommet to install a bit easier than the part # A45GB.
view full answer...![Image 1 for]()
- 4-Inch Round White LED Work Light to Fit Rubber Grommet A45GBOptronics round light grommet # A45GB fits a 4-1/2-inch cutout and accepts a 4-inch round light such as # BUL43CB. This round white LED-type work light features 10 super diodes for bright high-efficiency lighting. This light is intended as a work light; it is not certified for use as a backup light. For a 2-wire pigtail lead you can use part # A45CB. Thanks to the high-efficiency of this LED light you can use multiple lights without causing the same power draw demanded by incandescent...
view full answer... - Installing New Trailer Lights and Wiring on a Horse TrailerThere isn't a kit available for what you are looking for, but you can still piece everything together. For grommets to use with the # ST45RB you would want the part # A45GB and then for a pigtail you would want the part # A45PB. Often times, people will run the wires from a 7-way such as yours to a junction box like part # 38656. From there, they will run the standard wire colors to the trailer lights, brakes and battery. I have attached a photo that shows how this setup works in...
view full answer... - 2 and 4 Inch Diameter Trailer Lights, Grommets, and HarnessesI will be happy to help and give you some options. For 2 inch diameter red lights we have several options: # MC53RB (use grommet # A54GB and harness # A46PB) # MCL50RB (use grommet # A54GB and harness # A46PB) # MCL55RB (use grommet # A54GB and harness # A46PB) # MCL55R1224B (use grommet # A54GB and harness # A46PB) All in one option # MCL-50CRK # MCL155RB (use grommet # A54GB and harness # A46PB) For 2 inch diameter amber lights we also have several options: # MC53AB (use...
view full answer... - Compatibility of Optronics Trailer Tail Light # STL43RB With Trailer 4-1/2-Inch OpeningThe Optronics Trailer Light # STL43RB that you referenced can mount using rubber grommet # A45GB. But this light's overall diameter is 4-5/16-inches so this light unit would be too large to allow for grommet mounting in your trailer's 4-1/2-inch opening. However, my contact at Optronics confirmed that this mounting grommet # A45GB will fit a 4-1/2-inch rough opening and with it you can use the other light you referenced, part # STL101RB, which is 4-inches in diameter. If you need a wiring...
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- Replacement Tail Light For Forest River Georgetown XL RVI'd be happy to assist you. It sounds like you need the Sealed, Flush Mount Tall Rectangle LED Trailer Stop, Turn and Tail Light, Grommet and Plug, 12 Diode # STL34RB but most of the pictures I see have round tail lights like the Sealed, 4" Round, LED Stop/Turn/Tail light, 21 Diode - Red # STL55RB. If this is not the correct part, then send me a photo with the measurements of the light and we will get you what you need. The numbers and letters that are actually printed on the light...
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- Flashing Amber Warning Light for Agricultural EquipmentFor an amber agricultural light I recommend # W8260601 which was designed for this purpose. You could add # W002515 to wire it up. We also have amber flashing warning lights like # SLL43AB1 and # SLL43AB2 that can be wired to flash alternately. You would also need harness # A45PB for each and a grommet to mount them # A45GB. I have included a video review of these lights for you. The Optronics light # STL51AB you referenced is designed as a parking and turn signal light rather than...
view full answer... - Is the Optronics LED # STL43RB the Correct Replacement for Peterson 426 TaillightThe Optronics LED Taillight you referred to, part # STL43RB would indeed be a correct replacement for the Peterson 426 lamp you referred to. The # A45GB would be the correct replacement grommet and for a pigtail, you'd use part # A45PB. The LED replacement would be a great option, as they use a lot less power, would last much longer and are quite a bit brighter than their incandescent counterparts.
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