2893A Dunbier Bow Roller with End Caps (without Bolts) | Marine Trailer Part

🔧 Product Description

Dunbier 4" Bow Roller with Flared End Caps – Without Bolt – Part Number: 2893A

A compact 4" bow-roller assembly with flared end caps for centring and cushioning the boat's bow at the winch post. This reference is supplied without the retaining bolt so the existing serviceable shaft or a correctly sized replacement can be used.

⚙️ Key Features

• Nominal roller class: 4"
• Centre roller supports the bow
• Flared end caps assist lateral centring
• Non-marking or hull-friendly polymer/rubber construction according to the supplied version
• Suitable for trailer winch-post carriers
• Retaining bolt not included

📏 Specifications

• Nominal size: 4"
• Bolt supplied: No
• Exact roller width, bore and carrier spacing must match the installation

🔄 Cross Reference & Related Parts

• Dunbier: 2893A
• 3-inch family: 2892, 2892-B and 2892A
• 4-inch family: 2893 and 2893A
• Larger carrier-specific polyurethane sets: Dunbier 2886 and 2887

🚤 Trailer Compatibility & Application

• Suitable for compatible Dunbier winch posts and bow carriers
• Measure the bracket inside width and shaft diameter before replacement
• Select material hardness to suit the hull finish and support load

🔌 Function

Supports and centres the bow as it approaches the winch post during retrieval and while secured for transport.

⚠️ Common Signs of Failure

• Roller is split, flattened or seized
• End caps are worn or missing
• Bore is enlarged
• Bolt or shaft is bent
• Hull contacts the metal carrier

🛠️ Installation & Safety

• Support the bow before removing the shaft
• Use a corrosion-resistant bolt of the correct diameter and length
• Tighten the nut without clamping the roller solid
• Align the roller with the bow eye and winch strap
• Replace damaged carrier brackets at the same time

📦 Condition

• Genuine Dunbier Marine Products part
• Brand new
• Supplied as one 4" bow roller with end caps without bolt
• Supplied in original or equivalent packaging