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  1. Boat Trailer Parts
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  5. 8-3/4 Inch Tall
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CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies - Galvanized - 9-1/4" - Qty 4

CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies - Galvanized - 9-1/4" - Qty 4

Item # CE10190GA-4
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Rust-resistant assemblies let you install 2 bunk boards on your boat trailer. Each assembly attaches to the trailer frame with 2 U-bolts (sold separately) for a sturdy connection. Swivel brackets enable bunks to tilt when loading a boat. 1-800-496-5010 to order CE Smith boat trailer parts part number CE10190GA-4 or order online at Free expert support on all CE Smith products. Guaranteed Lowest Price and Fastest Shipping for CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies - Galvanized - 9-1/4" - Qty 4. Boat Trailer Parts reviews from real customers.
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  • Reviews (13)
  • Q & A (0)
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  • Why etrailer?

CE Smith Boat Trailer Parts - CE10190GA-4

  • Roller and Bunk Parts
  • Brackets
  • 8-3/4 Inch Tall
  • Bolster Bracket
  • Galvanized Steel
  • CE Smith

Rust-resistant assemblies let you install 2 bunk boards on your boat trailer. Each assembly attaches to the trailer frame with 2 U-bolts (sold separately) for a sturdy connection. Swivel brackets enable bunks to tilt when loading a boat.


  • Bolster-and-swivel-bracket assemblies allow you to install 2 bunk boards on your boat trailer
  • Extra-sturdy connection to trailer frame ensures support for the bunk boards
    • Each bolster bracket attaches with 2 U-bolts (sold separately), as opposed to a standard bracket that attaches with 1 U-bolt
  • Mounting slots permit as much as 3" of height adjustment during installation
    • Bolster brackets install vertically on your boat trailer's frame
  • Heavy-duty swivel brackets let you tilt the bunk boards
    • Helps you to fit the boat hull snugly onto your trailer during the loading process
    • Hardware is included for attaching the swivel brackets to the bolster brackets
    • 3 Bolt holes allow for a strong, sturdy connection to the bunk board
  • 7-Gauge, galvanized steel resists rust and corrosion
    • Suitable for saltwater exposure
  • Made in the USA


  • Quantity: 4 bracket assemblies
  • Overall height: 9-1/4"
  • Dimensions of bolster bracket: 8-3/4" tall x 4" wide
    • Mounting slot dimensions: 3" long x 1/2" wide
    • Horizontal spacing between slots: 1-1/4"
  • Dimensions of swivel bracket: 3-1/2" long x 1-1/2" wide x 2" tall
    • Flange mounting hole diameters: 3/8"
    • Flange mounting hole spacing: 2-1/2" apart on center
      • 1-1/4" Between each of the 3 holes

CE Smith double U-bolt bolster brackets installed on a boat trailer

Bolster-and-swivel-bracket assemblies are typically mounted upright on a boat trailer's crossmembers. They allow a mounted bunk board, which runs from the front of the trailer to the back, to tilt to accommodate and support boat hulls of different sizes. On kayak trailers, these brackets are mounted to the trailer's frame and support bunk boards that run across the trailer.

Galvanized Steel

Galvanized steel parts are hot-dipped in zinc after being stamped. This creates a coating that is typically 3 mil to 5 mil thick. This thick, all-around coating allows galvanized steel products to provide years of use without rusting or corroding.

10190GA C. E. Smith 7-Gauge Galvanized Steel Replacement Bolster Bracket - Double U-Bolt - 8-3/4" Tall

10206G C. E. Smith 7-Gauge, Heavy Duty Galvanized Steel Replacement Swivel Bracket for Boat Trailers

11089 C. E. Smith 1/2-Inch x 1.25-Inch Swivel or Bolster Bracket Mounting Bolt

10812 C. E. Smith 1/2-Inch Swivel or Bolster Bracket Mounting Locknut

Customer Reviews

CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies - Galvanized - 9-1/4" - Qty 4 - CE10190GA-4

Average Customer Rating:  4.8 out of 5 stars   (13 Customer Reviews)

Rust-resistant assemblies let you install 2 bunk boards on your boat trailer. Each assembly attaches to the trailer frame with 2 U-bolts (sold separately) for a sturdy connection. Swivel brackets enable bunks to tilt when loading a boat.


I bought a 2007 16' Carolina Skiff for $3500 back in December. The dealer said there was nothing at all wrong with it and he went over it and winterized it. I finally got around to putting it in the water and saw that the bunk boards were in terrible shape, with one side rail guide-on falling off. I took it to a marina repair shop and was told it would be cheaper to buy a new trailer instead of replacing the bunk boards. I contacted Ashley at etrailer about buying a set of bunk boards and all of the brackets and hardware for it. $370.00 later I had a full set of bunk boards and guide-ons being shipped to me. I don't think I could find a new trailer for that price. It took longer to remove the old ones than it did to put the new ones on. About 3 hrs later I had a new trailer. These bunk boards and guide-ons fit my boat and trailer perfectly.
Thank you Ashley and etrailer for great customer service and a very good product at a really decent price.


Box was heavily damaged(holes), I’m not sure if all the parts are there yet!

I will have our Customer Service team reach out to you.
-- Etrailer Expert Jenny N - 05/19/2022


Great price on my Double U-Bolt Bolster and Swivel Bracket assemblies. Heavy duty and just what my trailer needed to to haul my Key West 1720 boat.


Everything I ordered arrived very quickly and was exactly as described. I was replacing the bunks on my boat trailer and these parts were very easy to install and fit perfectly.


I have used single slot galvanized u-bolt bolsters on 20 and 25 galvanized trailers for salt water; they do not hold as much weight; the double bolsters are just what I needed. The price was lower than other vendors. Buy them!

Holding up fine. I trailer and launch the boat weekly, no a fresh water rinse always and there is no significant corrosion.
K. M - 04/02/2016


My rear bunk supports were welded on and rusting badly, so I just cut them off and installed these clamp on brackets. After one trip I had a problem with them slipping down. Clamps were tight. To correct this I drilled and tapped a 1/4-20 stainless bolt through the bracket and into the trailer frame. No problems since. Overall a nice heavy guage product that was not too difficult to install.


Item was as described works great


Bunk board brackets, were made of quality and fit trailer frame well. Service and shipping was extremely good and fast, very happy with the customer service.


Fast shipping as was my previous order. The items ordered were much better than what I had expected them to be. The are super heavy duty and will work wonderful with my boat. It was also packaged very well. Thanks. I will make another order in the next few weeks.


Thank you for getting the product to me in a very timely manner. It was pakaged the best I have ever seen. I was very impressed by the way it was shipped. Thank you again, it's always great to do business with you. Bob j



Exact fit, and the best price for the product. Quick delivery too.



See what our Experts say about this CE Smith Boat Trailer Parts

  • What Does the Diameter of the U-Bolts Need to be for the CE Smith Bracket Assemblies # CE10190GA-4
    The diameter of the U-bolts that need to be used with the CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies # CE10190GA-4 is 1/2 an inch. If you do not have enough U-bolts, you can purchase 8 of them with the washers and nuts included with part # CE15283GA-8.
    view full answer...
  • What are Benefits of Bracket Assemblies on Boat Trailer?
    Even if the boards can bear the weight of the boat, by concentrating the weight on a smaller, 3 inch surface, there is a greater risk to denting or deforming the hull of your boat compared to having the boat's weight spread out over a larger surface. To install your bunk boards, the assemblies you mentioned, the Bolster and Swivel Bracket Assemblies # CE10190GA-4 are the best overall option. They attach with a pair of U-bolts # CE15283GA-8 each for connection security, and both the brackets...
    view full answer...
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  • Can Bunk Brackets Work as Replacements for Welded On Supports
    Yes, the CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies # CE10192GA-4 will work as replacements, and you're definitely doing the right thing in replacing them due to the corrosion. You will need to use the CE Smith U-Bolts # CE15283GA-8 to install these assemblies and both the brackets and bolts are galvanized for future protection from corrosion. If you are also looking to replace the bunk board carpeting we have a number of lengths available, such as the CE Smith Deluxe...
    view full answer...
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  • Recommended Replacement Bunk Board Brackets For a J14 Carolina Skiff Boat Trailer
    I recommend the CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies. These are available in different heights depending on your trailer setup. 9-1/4" Bracket Assemblies # CE10190GA-4 10-1/4" Bracket Assemblies # CE10191GA-4 12-1/4" Bracket Assemblies # CE10192GA-4 16-1/4" Bracket Assemblies # CE10196G-4 These brackets use the U-Bolt Kit # CE15283GA-8 giving you 2 U-Bolts to secure the brackets to the frame. Once you have the brackets mounted to your Bunk Boards # CE27845 and...
    view full answer...
  • Replacement Bunk Brackets for Older Grady White Seafarer Boat Trailer
    Thank for the photos of your boat trailer! The CE Smith Double U-Bolt Bolster and Swivel Bracket Assemblies # CE10196G-4 that you referenced are a great option to replace the existing bunk system on your boat trailer. These bolster brackets and swivel bracket are both made from 7-Gauge, galvanized steel. The # CE10196G-4 have an overall height of 16-1/4 inches. These brackets are available in different heights options to help accommodate the shape of the boat's hull. The four bracket...
    view full answer...
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  • Replacement Rollers For Wobble Rollers To Eliminate Marks and Gauging In The Boat Hull
    Since your main concern is the marks on the hull of your boat I recommend going to the Yates TPR Ribbed Wobble Roller. These rollers are constructed of thermal-plasticized rubber which is a non-marking, non-scratching material. It is stronger and more durable than traditional rubber while being softer and more pliant than polyurethane. You will need to find your shaft size to find the correct 5" Rollers. If you have a different size roller let me know what size it is and I can help you...
    view full answer...
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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Laura H
Updated by:
Laura H
Employee Chelsea B
Updated by:
Chelsea B
Employee Wilson B
Updated by:
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