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Boat Trailer Bunk Brackets

Bunk Bracket supports for your Boat Trailer come in several styles, each with its own function and purpose. Check out these styles in swivel top bunk bracket, vertical L-shape bunk bracket, and vertical bunk bracket to replace your existing or to add to your boat trailer. If is important to remember that these brackets determine the sitting height of your boat on the trailer. This height is very important
-Too Low can cause impact with the trailers fenders 
-Too Low may not allow you to lower you motor once your back home to rinse your motor or for storage
-Too Low Makes it possible for the Boat to impact the Trailer Cross Members when loading or unloading Boat
-Too High May make it more difficult to unload and load the Boat

Vertical L Types - Typically used in pairs to Mount post style Bunk Boards (4" x 8" Boards) (3" x 6" Boards) Mounts to your trailers 3" x  3" Cross Beam using Square 1/2" x 3" x 4 5/16" U-Bolts and then mounts the Bunk board using two 1/2" Diameter Bolts. 

Vertical Bunk Brackets for 2" x 4" - Typically used to Mount a 2" x 4" Board Vertically to support the boat Hull and Mounts to your Trailer with either Square U-Bolts or through Bolts depending upon the shape and dimensions of your cross beam

Swivel Top Bunk Brackets - Typically used to mount 2" x 4" or 2" x 6" Boards at customer angles to support your boats hull. Will mount to your trailers cross beam with either square U-Bolts or through bolts depending upon your crossbeam dimension. 

Sub-Categories
Total Items: 47
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(PAIR) 5/16 x 1 1/2  Galvanized Lag Screws for Swivel Top Bunk Bracket
Item Sku: 100770
MPN: N/A

5/16" Diameter with 1 1/2" Shank

Popular uses: Swivel Top Style Bunk Brackets for Boards

Hot Dipped Galvanized Finish Great for Boat Trailers - Includes Hardware
5/16 x 1 1/2 Galvanized Lag Screws for Swivel Top Bracket
$2.16
In Stock
(PAIR) 5/16 x 1 1/2  Stainless Steel Lag Screws for Swivel Top  Bracket
Item Sku: 100771
MPN: N/A

5/16" Diameter with 1 1/2" Shank

Popular uses: Swivel Top Style Bunk Brackets for Boards

Stainless Steel will not Rust - Includes Stainless Steel Hardware
5/16 x 1 1/2 Stainless Steel Lag Screws for Swivel Top Bracket
$2.52
In Stock
Bunk Bracket Replacement Swivel Top for Adjustable Bolster Brackets
Item Sku: 100327
MPN:

Use 7/16" x 1 1/4" Bolt to Mount

Use 5/16" Lag Screws to Secure Bunk Boards

For use with 2" x 4" and 2" x 6"
Bunk Bracket Replacement Swivel Top
$3.66
In Stock
Replacement Boat Trailer Swivel Top Angle Bunk Bracket 3/8
Item Sku: 141477
MPN:

Use 3/8" x 1 1/4" Bolt to Mount

Use 5/16" Lag Screws to Secure Bunk Boards

For use with 2" x 4" and 2" x 6"
Replacement Swivel Top for Galvanized Boat Trailer Bunk Brackets
Sale
$4.32  $2.84
In Stock
Aluminum Bunk Bracket Replacement Swivel Top for Bolster Brackets
Item Sku: 100962
MPN: N/A

Made of 1/4" Aluminum

Mounts with 1/2" Trailer Bolt to Bunk Bracket

Use 5/16" Lag Screws to secure to Bolt
Bunk Bracket Replacement Swivel Top made of Solid Aluminum
$5.11
In Stock
Extruded Aluminum Bunk Bracket Replacement Swivel Top for Bolster Brackets
Item Sku: 141709
MPN: N/A

Made of 3/16" Aluminum

Mounts with 1/2" Trailer Bolt to Bunk Bracket

Use 5/16" Lag Screws to secure to Bolt
Bunk Bracket Replacement Swivel Top made of Solid Aluminum
$5.19
In Stock
Bunk Bracket Replacement Swivel Top Heavy Duty
Item Sku: 100328
MPN: N/A

Use 1/2" x 1 1/2" Bolt to Mount

Use 5/16" Lag Screws to Secure Bunk Boards

For use with 2" x 4" and 2" x 6"
Bunk Bracket Replacement Swivel Top Support for Trailer Bunks
$5.32
In Stock
8 inch Vertical Bunk Bracket Galvanized Support for Boat Trailer
Item Sku: 100198
MPN: N/A

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use 3/8" Bolt to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Mounts your Bunks Vertically to your Trailer Crossmember
$7.00
In Stock
8 inch Bunk Bracket Swivel Top Bolster Support for Bunk Boards
Item Sku: 100195
MPN:

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Whole kit to fix those bunk brackets! Boat Trailer Swivel Top Bunk Brackets
$8.37
In Stock
10 inch Bunk Bracket Swivel Top Bolster Support for Bunk Boards
Item Sku: 100196
MPN:

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Replace those old rusty brackets!
$8.85
In Stock
10 inch Vertical Bunk Bracket Galvanized support for Boat Trailer
Item Sku: 100199
MPN: N/A

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use 3/8" Bolt to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Great for Maximum height of Bunks
Sale
$9.22  $7.46
In Stock
Aluminum Boat Trailer Fender or Bunk Support 15 inch for Tandem Axle
Item Sku: 100781
MPN: N/A

15" End to End with (2) 45" End Bends - 1/4" Thick

Supports Tandem Axle Fenders

Has Pre Drilled Holes for Trailer Bolts
Tandem Axle Boat Trailer Fender Support Aluminum
Sale
$10.00  $9.46
In Stock
12 inch Bunk Bracket Swivel Top Bolster Support for Bunk Boards
Item Sku: 100197
MPN:

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Mount your Bunks at the desired angle to fit your Boat
$10.78
In Stock
6 inch Bunk Bracket Galvanized L-Type for Boat Trailer Bunk Boards
Item Sku: 100208
MPN:

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Fight off the Saltwater with this Galvanized Bunk Bracket
$10.90
In Stock
Aluminum Boat Trailer Fender or Bunk Support 17 inch for Tandem Axle
Item Sku: 100782
MPN: N/A

17" End to End with (2) 45" End Bends - 1/4" Thick

Supports Tandem Axle Fenders

Has Pre Drilled Holes for Trailer Bolts
Tandem Axle Boat Trailer Fender Support Aluminum
$11.35
In Stock
12 inch Vertical Bunk Bracket Galvanized support for Boat Trailer
Item Sku: 100200
MPN: N/A

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use 3/8" Bolt to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Vertical Galvanized Bunk Bracket
$11.63
In Stock
8 inch Bunk Bracket Galvanized L-Type for Boat Trailer Bunk Boards
Item Sku: 100209
MPN:

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Great for Boat Trailers and Lifts!
Sale
$13.42  $12.71
In Stock
6 inch Bunk Bracket Aluminum L-Type for Bunk Boards on Boat Trailers
Item Sku: 100204
MPN: N/A

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Aluminum Bunk Brackets will Not Rust
NO MORE RUST! Fight back with Aluminum Bunk Bracket
$13.76
In Stock
10 inch Bunk Bracket Galvanized L-Type for Boat Trailer Bunk Boards
Item Sku: 100210
MPN:

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Corrosion Resitanet Heavy Duty Galvanized Bunk Bracket
$14.88
In Stock
8 inch Bunk Bracket Aluminum L-Type for Bunk Boards on Boat Trailers
Item Sku: 100206
MPN: N/A

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Aluminum Bunk Brackets will Not Rust
No More Rusty Bunk Brackets!
$16.38
In Stock
Pontoon Boat Trailer Bunk Bracket Narrow Profile Wing Style Galvanized
Item Sku: 141603
MPN:

Made from 11 gauge Galvanized Steel

Secures with U Bolts around the from of the trailer (Not inculded)

Secures Pontoon Bunk Boards
Wing Style Narrow Pontoon Bunk Bracket for Trailer Frames
$16.46
In Stock
12 inch Bunk Bracket Galvanized L-Type for Boat Trailer Bunk Boards
Item Sku: 100211
MPN: N/A

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Heavy Duty Hot Dipped Galvanized Bunk Bracket
$17.65
Out of Stock
10 inch Bunk Bracket Aluminum L-Type for Bunk Boards on Boat Trailer
Item Sku: 100207
MPN: N/A

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Aluminum Bunk Brackets will Not Rust
Long Lasting Performance with NO MORE RUST!
$20.47
In Stock
Boat Trailer Double U Bolt Bunk Bracket Swivel Top 10
Item Sku: 101037
MPN:

Mounts with (2) 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
Sale
$21.54  $17.40
In Stock
Boat Trailer Double U Bolt Bunk Bracket Swivel Top 12
Item Sku: 101038
MPN:

Mounts with (2) 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
Sale
$21.67  $20.68
In Stock
Pontoon Boat Trailer Bunk Bracket Wing Style Galvanized
Item Sku: 101041
MPN:

Made from 1/8" Galvanized Steel

Secures with U Bolts around the from of the trailer (Not inculded)

Secures Pontoon Bunk Boards
Wing Style Pontoon Bunk Bracket for Trailer Frames
$23.40
In Stock
Pontoon Boat Trailer Bunk Bracket V Style Galvanized
Item Sku: 101040
MPN:

Made from 3/8" Galvanized Steel

Secures with U Bolts and Plates or Bolts

Secures Pontoon Bunk Boards
V Style Pontoon Bunk Bracket for Trailer Frames
$24.40
In Stock
Aluminum Boat Trailer Fender or Bunk Support 17 inch HD for Tandem Axle
Item Sku: 100783
MPN: N/A

15" End to End with (2) 45" End Bends - 3/8" Thick

Supports Tandem Axle Fenders

Has Pre Drilled Holes for Trailer Bolts
Tandem Axle Boat Trailer Fender Support Aluminum
Sale
$25.71  $14.46
Out of Stock
10 inch Heavy Duty Boat Trailer Bunk Bracket Aluminum L-Type for Cypress Bunks
Item Sku: 101168
MPN: T5103AHD

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Aluminum Bunk Brackets will Not Rust
Heavy Duty Long Lasting Performance with NO MORE RUST!
$27.58
In Stock
Boat Trailer Double U Bolt Bunk Bracket Swivel Top 15
Item Sku: 101039
MPN:

Mounts with (2) 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
$27.84
In Stock
Aluminum Bunk Bracket Swivel Top 8 inch Kit for Bunk Boards
Item Sku: 100970
MPN: N/A

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Aluminum Bracket with Stainless Steel Hardware
Aluminum Boat Trailer Swivel Top Bunk Bracket Kit 8 Inch Tall
Sale
$28.37  $27.75
In Stock
8 inch Heavy Duty 3/8 inch Thick Bunk Bracket Galvanized L-Type for Boat Trailer Bunk Boards
Item Sku: 141669
MPN:

Mounts with 1/2" U Bolt to Crossmember

Use 1/2" Bolts to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Great for Boat Trailers and Lifts! Heavy Duty Style
Sale
$29.96  $23.65
In Stock
Aluminum Bunk Bracket Swivel Top 10 inch Kit for Bunk Boards
Item Sku: 100971
MPN: N/A

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Aluminum Bracket with Stainless Steel Hardware
Aluminum Boat Trailer Swivel Top Bunk Bracket Kit 10 Inch Tall
$31.43
In Stock
Set of 4 - Boat Trailer Vertical Bunk Bracket Swivel 8
Item Sku: 141617
MPN:

Fits 3x3 Cross Member

Use included Bolt to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Vertical Bunk Bracket Kit Galvanized
Sale
$34.06  $32.61
In Stock
Bunk Bracket Swivel Top 12 inch All Aluminum Kit for Bunk Boards
Item Sku: 101169
MPN: N/A

Mounts with 1/2" U Bolts or Bolts to Crossmember

Use (2) Lag Screws to Secure Bunk Boards

Aluminum Bracket with Stainless Steel Hardware
Solid Aluminum 12" Swivel Top Bunk Bracket With Stainless Steel Hardware
Sale
$39.46  $29.11
In Stock
Set of 2 - Boat Trailer Double U Bolt Bunk Bracket Swivel Top 10
Item Sku: 101448
MPN:

Fits 2x3 Cross Member

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
Sale
$50.65  $35.06
In Stock
Ultimate Aluminum and Stainless Steel Swivel Top Bunk Bracket - 10 inch 2x2 kit
Item Sku: 101165
MPN:

Mounts to 3" x 3" Trailer Crossmembers

Uses Included Stainless Steel U Bolts

This Assembly will never Rust
All Aluminum and Stainless Steel Heavy Duty Swivel Top Bunk Bracket
$51.51
In Stock
Set of 2 - Boat Trailer Double U Bolt Bunk Bracket Swivel Top 10
Item Sku: 101447
MPN:

Fits 3x3 Cross Member

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
Sale
$51.68  $47.46
In Stock
Set of 2 - Boat Trailer Double U Bolt Bunk Bracket Swivel Top 12
Item Sku: 141615
MPN:

Fits 3x3 Cross Member

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
Sale
$51.92  $43.27
In Stock
Ultimate Aluminum and Stainless Steel Swivel Top Bunk Bracket - 14 inch 2x2 kit
Item Sku: 101170
MPN:

Mounts to 3" x 3" Trailer Crossmembers

Uses Included Stainless Steel U Bolts

This Assembly will never Rust
All Aluminum and Stainless Steel Heavy Duty Swivel Top Bunk Bracket
$55.95
In Stock
Set of 2 - 10 inch Heavy Duty Aluminum Boat Trailer Bunk Brackets L-Type Kit for 3x3 Cross Member
Item Sku: 101445
MPN: 25808-2

Mounts to 3x3 Cross Members

Use 1/2" Bolts to Secure Bunk Boards

Aluminum Bunk Brackets and Stainless Steel U Bolts - Will Not rust!
Heavy Duty Long Lasting Performance with Stainless Steel Mounting U Bolts - NO MORE RUST!
$62.87
Out of Stock
Set of 2 - Bunk Bracket Swivel Top 8 inch All Aluminum Kit for Bunk Boards
Item Sku: 101446
MPN: N/A

Mounts to 3x3 Cross Members

Use (2) Lag Screws to Secure Bunk Boards

Aluminum Brackets with Stainless Steel Hardware
Set of 2 Aluminum 8" Swivel Top Bunk Bracket With Stainless Steel U-Bolts
Sale
$66.56  $53.48
In Stock
Set of 2 - Bunk Bracket Swivel Top 10 inch All Aluminum 3x3 Kit for Bunk Boards
Item Sku: 101444
MPN: N/A

Mounts to 3x3 Cross Members

Use (2) Lag Screws to Secure Bunk Boards

Aluminum Brackets with Stainless Steel Hardware
Set of 2 Aluminum 10" Swivel Top Bunk Bracket With Stainless Steel U-Bolts
$74.32
In Stock
Set of 2 - Bunk Bracket Swivel Top 12 inch All Aluminum 3x3 Kit for Bunk Boards
Item Sku: 101444
MPN: N/A

Mounts to 3x3 Cross Members

Use (2) Lag Screws to Secure Bunk Boards

Aluminum Brackets with Stainless Steel Hardware
Set of 2 Aluminum 12" Swivel Top Bunk Bracket With Stainless Steel U-Bolts
Sale
$90.75  $73.95
In Stock
Set of 4 - Boat Trailer Double U Bolt Bunk Bracket Swivel Top 10
Item Sku: 141616
MPN:

Fits 2x3 Cross Member

Use (2) Lag Screws to Secure Bunk Boards

Hot Dipped Galvanized Finish Great for Boat Trailers
Boat Trailer Swivel Top Bunk Bracket Kit Galvanized Heavy Duty
Sale
$101.29  $70.13
In Stock
Set of 2 - Ultimate Aluminum and Stainless Steel Swivel Top Bunk Bracket 10 inch 2x2 kit
Item Sku: 101443
MPN:

Mounts to 3" x 3" Trailer Crossmembers

Uses Included Stainless Steel U Bolts

This Assembly will never Rust
All Aluminum and Stainless Steel Heavy Duty Swivel Top Bunk Brackets
$103.02
In Stock
Set of 2 - Ultimate Aluminum and Stainless Steel Swivel Top Bunk Bracket 14 inch 2x2 kit
Item Sku: 101170
MPN:

Mounts to 3" x 3" Trailer Crossmembers

Uses Included Stainless Steel U Bolts

This Assembly will never Rust
All Aluminum and Stainless Steel Heavy Duty Swivel Top Bunk Brackets
$111.91
In Stock
 
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