Bow Roller — 3" Blue Polyurethane — Fits 3" Bracket Part Number: BR3B This 3" blue polyurethane bow roller is designed for use with standard 3" bow brackets on boat and utility trailer winch posts. Polyurethane construction resists flattening, cracking, and marking while providing smooth, consistent contact with the bow or hull. Commonly used as a direct replacement for worn or damaged rollers on trailer winch posts and marine bow roller assemblies. Specifications Part Number BR3B Material Polyurethane Color Blue Roller Width 3" Bore Size 5/8" Fits Bracket 3" Bow Bracket Condition New — Limited Stock (Do Not Reorder) Common Applications Boat trailer winch posts Utility trailer bow brackets Replacement for standard 3" roller assemblies Fits most 5/8" roller shafts Note: This is a limited-stock item marked Do Not Reorder. Verify bracket width and shaft diameter before ordering. Search Bow Rollers & Winch Parts BR3B 3 inch bow roller blue polyurethane 5/8 bore trailer winch post