Racewill 4 Pack Boat Trailer Bunk Brackets – 10-Inch Galvanized Swivel Top Kit for 1.5x3, 2x3, 3x3 Crossmembers

Meet the Racewill 4 Pack Boat Trailer Bunk Brackets, a rugged 10-inch galvanized swivel-top bunk kit built to upgrade how you cradle your boat on trailer crossmembers. This complete kit is designed for easy installation or replacement and is compatible with common crossmember sizes, helping you tune your setup for a secure, balanced ride.

Designed for versatility, the U-bolts feature an extended thread design to fit a range of trailer crossbeams. The U-bolts measure 1/2 inch in diameter, with a 3.5 inch width and 4 inch length, providing solid engagement across different widths. The heavy-duty galvanized iron construction resists bending and deformation, making this kit suitable for both freshwater lakes and saltwater harbors, as well as pontoons and jet ski trailers.

The top brackets are swivel-style and 10 inches tall, allowing you to tilt or align the brackets to match your boat’s hull, whether it’s angled or flat. This adjustable angle helps you achieve a snug, balanced contact that supports the hull shape without forcing an overly rigid fit. Slotted holes enable multiple height adjustments, so you can fine-tune the setup as your boat or trailer configuration changes season to season.

The kit is a true all-in-one package. It includes four rectangular bunk brackets, four trapezoid brackets, four U-bolts, and the mounting hardware you need for installation or replacement. With this complete set, you’ll have the essential components at hand to complete a secure bunk system on most common trailer crossmembers.

Why choose Racewill? The galvanized iron construction delivers durability and corrosion resistance, making it a practical choice for trailers used in diverse environments. The swivel-top design supports hull contours and offers flexible positioning, helping to distribute contact points across the bunk surface for better alignment and reduced wear over time. The combination of adjustable height, adjustable angle, and a ready-to-install kit offers practical adaptability for different boats and trailer layouts, without claiming guaranteed results for every setup.

In short, this kit presents a flexible, all-in-one solution that can adapt to your trailer and boat profile. While results vary with boat size and trailer configuration, users often appreciate the ease of installation, the adjustable features, and the reliable, corrosion-resistant build that supports ongoing maintenance and customization.