# 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

## Details

- **Price:** 18.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 18.50 AUD | In stock |

## Images

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

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/2893-dunbier-dunbier-bow-roller-with-end-caps-bolt-4)
> Updated: 2026-08-05