2893 Dunbier Bow Roller with End Caps and Bolt 4" | Marine Trailer Part

🔧 Product Description

Dunbier 4" Bow Roller with Flared End Caps and Retaining Bolt - Part Number: 2893

A compact 4" bow-roller assembly with flared end caps for centring and cushioning the boat's bow at the winch post. The matched retaining bolt is included for a complete installation.

⚙️ 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 included

📏 Specifications

• Nominal size: 4"

• Bolt supplied: Yes

• Exact roller width, bore and carrier spacing must match the installation

🔄 Cross Reference & Related Parts

• Dunbier: 2893

• 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 wear or 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 and bolt

• Supplied in original or equivalent packaging