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Trailer Light Mounting Bracket for 6-1/2" Oval Trailer Lights, Steel - Black Powder Coat

Trailer Light Mounting Bracket for 6-1/2" Oval Trailer Lights, Steel - Black Powder Coat

Item # BK70BB
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Optronics Accessories and Parts - BK70BB

  • Trailer Lights
  • Mounting Hardware
  • Brackets
  • Optronics
  • 6-1/2 Inch Diameter
  • Black

Trailer Light Mounting Bracket for 6-1/2" Oval Trailer Lights, Steel - Black Powder Coat

A black, steel bracket for mounting 6-1/2" oval lights. The bracket measures 8-1/4" long x 4" wide with a 1-5/8" deep mounting base. The bracket has a 6-11/16" long x 2-5/8" wide hole in the center for mounting the light, and has two screw holes in the bracket centered at the rounded ends of the hole. The black, powder coated bracket is made from sturdy, durable steel and can be used to mount lights vertically or horizontally. The bracket base mounts on 6-1/4" centers. Along with the sealed light, a grommet (A70GB) is required to complete the installation.

  • Black, powder coated bracket for mounting 6-1/2" oval lights
  • Constructed from strong, durable steel
  • Mounts lights vertically or horizontally
  • Lights mount into 6-11/16" long x 2-5/8" wide hole in center of bracket with screw holes centered at rounded ends
  • Base mounts on 6-1/4" centers
  • Requires grommet A70GB to complete installation
  • Dimensions: 8-1/4" L x 4" W with 1-5/8" deep base

Manufacturer Cross Reference
Bracket will work as an exact replacement for:
Uni Bond # MB2238
Truck Lite # 60720
Grote # 43362
Peterson # 421-09

Manufacturer Specifications

Black powder coated steel bracket for horizontal or vertical mounting of 6" oval lights. Grommet part #A70GB is required for complete installation.

dimensions of mounting bracket

BK70BB Black Powder Coated Bracket for 70 Series Oval Lights by Optronics, Inc.

Alternate part number: BK-70BB

California residents: click here

Customer Reviews

Trailer Light Mounting Bracket for 6-1/2" Oval Trailer Lights, Steel - Black Powder Coat - BK70BB

Average Customer Rating:  4.8 out of 5 stars   (193 Customer Reviews)


Worked well for my flatbed project
design and have held up against
Vibration and weather. Overall happy
With these brackets


I have a Thule Easy Fold XT Bike Rake, which by the way is an awesome Bike Rack. It lacked one thing, Brake Lights. makes it easy to attach. Here is my installation which took about 30 minutes to install.


Brackets seem to be good quality, and not flimsy metal at all. The lights fit nice in them, and not loose. They really look great on my Thule T2 Classic bike rack.
Warning though, if you dont pay for the more expensive 3 day shipping, your package will just sit there and get pushed back in the shipping queue for a week or more.


I've never had a problem with, I'm always satisfied, GREAT JOB !!!

Its Great I love them, no more broken tail lights.
JT - 06/05/2022


Used 2 of these to add a light kit to my Thule T-2 receiver bike hitch. East to mount and wire with optional lens kit. Adds extra safety with 2 29 inch bike hanging out the back.

After one year it is still working perfectly
Phil - 09/11/2019


Attaced trailer lights to a Thurle hitch, 2bike platform. When the plateform is lowered to the loaded position the lights are located on the bottom of the rearmost horizontal bar. The light on the left is attached to the hex bolt at the end of th bar and rhe other end of the mounting bracket is held to the bar by a zip tie which runs through the hole at that end of the bracket. On the right side There are 4hex bolts on that part of the bar. The bracket holes don’t match up to those bolts. I used the bolt closer to the center and furthest to the rear and drilled a new hole in the bracket to match the bolt in that line furthest to the end. Both lights are secure and as the picture shows helps to define the protrsion of the rack and hopefully will protect from a rearend crash.


All products bought from have been as advertised. All products purchased are excellent. Products purchased are, Blue ox tow receiver, 6 inch drop/rise. A very strong, well made product. Also, a set of LED tow lights, for my scooter carrier. A 'Quiet hitch lock', which ensures no movement in my hitch at all. Lastly, a hitch plug, a little bit of 'whimsy', many thanks to the reps., at, their knowledge and advice has been invaluable.


good bracket for my lights. gives me options on how to attach it to my platform bike rack


Service was great. I had worries about the Lights arriving in time for my trip with my new bike rack. The staff was helpful and got the equipment out in time for installation.


Just what I needed to add tail lights on my T2 Pro bike rack for added safety and peace of mind.


Great value and seemingly good quality. I opted to add stop lights with components reviewed on etrailer site. LED wiring with light kit is very problematic. Had to purchase a 12” 4 way extender. No way to do a neat, professional install due to the wire harness. Oh well, it’s installed. I would still do it again but suggest product management take control. . Love etrailer service.


Bracket and lights worked as I intended them to. I have to back my boat trailer into a dark barn and the lights help in doing so.


The Brackets are made of rigid, high quality steel, with a nice powder coated finish. We used these brackets to add newer style lights to an old trailer. These saved us lots of machining and cutting time.


A friend had this style on his trailer and they seemed to be trouble free, I could not buy these local for the price etrailer offers.
So I bought light, gromet, and pig tail. Very nice and easy to mount.


Exactly what I was looking for these are sturdy enough to attach with magnets as temporary towing lights for my historic vehicle. Thanks


Looks great on my trailer. thanks

Just like a TIMEX watch takes a licking
john m - 03/21/2015


Heavy duty. Great for my bike rack purp oses.


Lights fit perfectly, as did the grommets them self


fit the back up light perfectly as advertised.
universal mount, mounts anywhere you can drill a hole or two.


Apparently the website is very confusing. I ordered 2 mounting brackets and the customer rep said I ordered 3. I also ordered 2 lights and the rep said I only ordered 1. I am educated enough to know how to order items. I also spoke to another rep before my order was shipped. If this was something I did then I will blame it on a confusing website.


:I have a hitch platform bike rack, With bikes on the rack, particularly when they are covered, the car tail lights are not seen. I applied the Rola LED Light Kit for Railed Cargo Carriers to the Platform bike rack so that Tail lights, turn signals and brake could be visible. This adds Safety to driving as well as protection for the bikes.

Arthur D., the etrailer representative I spoke with, was well versed in etrailer products and was extremely helpful in getting my order organized and shipped. I was completely satisfied with my interaction with Arthur D and the company.


Good fit and plenty of holes for vaious mounting applications. I welded mine on and the material is thick enough to be welded and hold its structural integrity mounted in any position.


Brackets perfectly fit the lights, excellent sizing
Very fast delivery, Thanks


Straight forward mounting. I used twist ties provided. Very secure. Drove 600 miles with no issues. Customer service was excellent


Elcellent product and arrived early. Works just as advertised and looks nice on my Cargo Carrier. Just got done ordering more items. Great customer service department answered all my questions.

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