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Buyers Products Tail Light Mounting Box - 4" Round Hole - 2-5/16" Round Hole - Black Steel
(162 reviews)
Price: $44.99
In Stock
Buyers Products
Buyers Products Tail Light Mounting Box - 4" Round Hole - 2-5/16" Round Hole - Black Steel
Part Number: 337LB663SL
In Stock
$44.99
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- Reviews (162)
- Q & A (0)
- Videos (1)
- Photos
Buyers Products Accessories and Parts - 337LB663SL
- Trailer Lights
- Vehicle Lights
- Mounting Boxes
- Buyers Products
- 1 Round Hole
- Black Steel
- Buyers Products tail light mounting box
- Helps to protect exterior lights from the elements
- Designed for (1) 4" round light and (1) 2-5/16" round sidelight (both sold separately)
- Black powder-coated steel construction
- Overall dimensions: 6" wide x 6" tall x 3" deep
LB663SL Buyers Products Single Round Light Box Black Powder Coated Steel With Side Light
Video of Buyers Products Tail Light Mounting Box - 4" Round Hole - 2-5/16" Round Hole - Black Steel
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for What to Know About the Buyers Products Tail Light Mounting Box
Speaker 1: Today we're taking a look at a Tail Light Mounting Box. This mounting box holds one round 4" tail light and one round side light. The lights would mount to the box using mounting grommets. Lights and grommets are sold separately and available at etrailer.com.The box is designed to help protect your lights from the elements. It's made from a durable steel construction with a black powder-coated finish to resist rust and corrosion. It can be bolted or welded to your trailer or truck.When it comes to the overall dimensions of the unit, starting with the overall width as it goes in this direction is right around 6".
Overall height, also around 6". Overall depth, that's front-to-back measurement, is going to give us a measurement of about 3" deep. The cutout here on the front face measures about 4 1/2" in diameter and the cutout for the side light measures 2 5/16" in diameter. And the internal depth, from the back of the box to the inside of the front face is 2 13/16" deep.That's going to do it for today's look at the Tail Light Mounting Box.
Ratings & Reviews
4.8
162 reviews
by:
Scott
11/11/2019
Product was shipped and arrived quickly as represented.
by:
Richard
02/02/2022
by:
Edgar
08/27/2021
by:
Myron
03/18/2021
by:
Joseph
06/17/2026
Wasn't in stock when I ordered it. But etrailer got in a shipped fast. Box is well made. Would order from etrailer again. Customer service is great.
by:
Robert
02/20/2020
Excellent product, well constructed. Just order more items today to update the lights on my brother's boat trailer.
by:
Larry
09/13/2026
Exactly what I was looking for. Fast delivery.
by:
Guy
09/23/2026
made really good
by:
Daniel
06/21/2024
I was expecting the tail light housings I purchased to be made of thin steel that would make them difficult to weld on, but the are very good quality and I am very happy with them. I ama a truck and trailer mechanic and need to replace several of these housings due to rust. I will be getting them from e trailer from now on.
Daniel
6/23/2025
The light boxes are still doing great after a year. Would definitely recommend.
Nick S.
6/24/2025
@Daniel That is great to hear, and I am glad the quality of them was better than expected. Have you installed many of these on trailers you work on?
by:
Peter
04/29/2026
Good quality, very pleased
by:
Jeanne
08/27/2025
Great product it was exactly what I was looking for not to mention super fast shipping
by:
Steven
09/09/2025
perfect fit for rear lights on a trailer
by:
Aaron
07/28/2025
Nice product. Need to weld or drill mounting holes, but good product and fits the oval leds very well.
by:
Kyle
03/10/2026
Ordered wrong item, noticed the mistake and ordered correcte item, email corresporndence with swift and the got the right items on the way!!!
by:
Chris
11/27/2024
easy to order the exact replacement part I needed. Although USPS dropped the ball on getting it to me on time etrailer was prompt on shipping and providing tracking information for my order
Brooke M.
11/27/2024
Thanks for saying so. It truly means a lot to us! Hope to hear from you again!
by:
RapidRob
04/01/2025
Nice solid box. Have not mounted yet but should be easy to mount. Will need to drill small hole for wires where I want. Should last a long time as it is powder coated.
Gwendolyn Y.
4/2/2025
Would love to see what the finished project looks like when you're done :)
by:
Riley
02/28/2026
Good quality
by:
Joe R.
03/05/2025
Gwendolyn Y.
3/5/2025
Hey Joe. The new light mounts look great on your trailer!
by:
Harvey
03/30/2024
Good quality and value. I decided to utilize these a little differently, I ended up cutting this in-half and welding one on each side of a utility trailer for rear taillighting. These made nice weld-on heavy duty trailer light boxes.
by:
Bill
06/18/2024
I bought this aluminum tail light box to change from a vertical box to a horizontal box to provide more room when loading my car on my Mission Aluminum car hauler.
Installation was simple and lights fit the new housing just like original.
I am very pleased with the aluminum taul light housing/box.
Installation was simple and lights fit the new housing just like original.
I am very pleased with the aluminum taul light housing/box.
by:
James
03/23/2023
Great product. Quality manufacturing
by:
Benjamin Shrope, Mechanized Cleaning Solutions, In
08/22/2024
The team at eTrailer always communicates so well and having ordered (so far) parts to build three 10,000lb trailers from scratch, every order has come through without error. When axles are back ordered the team emails weekly to inform of delays, and they’re always just on point with customer service. Need to build 2 more for my company in the next ) months, will definitely be using them for parts and supplies! Thanks to the eTrailer team!
by:
Stephen
04/08/2025
Well built heavy duty light boxes
by:
Chris
04/14/2023
Top quality and great looking product that is built to last, very durable and heavy duty, should last forever and looks great.
Chris
4/15/2024
update: after a year still looks and works great
Jesse M.
5/13/2024
@Chris Thanks for sharing!
by:
Greg
09/07/2023
The customer support and service that etrailer provides is commendable. From the website to the product packaging to the post purchase follow ups, I am always impressed by how good the experience is. Etrailer is a good role model for how caring about the customers really does make a difference in whether they will be return customers. Kudos to a job well done!
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Info for this part was:
Installed by:
Cole B
Updated by:
Wilson B
Edited by:
Daron K
Written by:
Brian T
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Scott
2/21/2021
Worked out so good, I installed them on my brothers boat trailer and he loves them.wire connectors are sealed inside box. No more corrosion.