# 3146 Dunbier Rubber Roller and Bracket Double 8" | Marine Trailer Part

🔧 Product Description

  

Genuine Dunbier Marine Products Double Rubber Roller and Bracket 8" - Part Number: 3146

  

A galvanised double rocker bracket fitted with 2 8-inch rubber rollers. The assembly supports and guides the boat hull during launch and retrieval.

  

⚙️ Key Features

  

• Rubber roller construction

• 2-roller double rocker bracket

• Galvanised marine-trailer bracket

• Roller rotates to reduce hull drag during loading

• Suitable for replacement or trailer-support adjustment

  

📏 Specifications

  

• Nominal roller size: 8-inch

• Roller quantity: 2

• Roller material/colour: Rubber, black

• Leg length: Follow supplied bracket configuration

• Supply: complete roller and bracket assembly

  

🔄 Cross Reference & Related Parts

  

• Single rubber assembly: Dunbier 3145

• Double bracket only: Dunbier 3150

  

🚤 Compatibility & Application

  

• Compatible Dunbier trailer roller stations matching the bracket width, leg spacing and roller shaft size

• Position rollers under structurally supported hull areas

• Set neighbouring rollers to share the hull load rather than creating isolated pressure points

• Confirm the assembly clears strakes, chines, transducers and hull fittings

• Use the correct roller shaft, washers and retaining clips

  

🔌 Function

  

Supports the hull and allows it to roll across the trailer with reduced friction while helping maintain centreline alignment.

  

Common signs of wear, damage or replacement required:

  

• Roller is cracked, worn flat, swollen or seized

• Bracket or legs are bent

• Roller shaft or holes develop excessive play

• Retaining hardware is missing

• Hull contacts the metal bracket

  

📦 Condition

  

• Genuine Dunbier Marine Products part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 115.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 115.50 AUD | In stock |

## Images

- 3146 Dunbier Rubber Roller and Bracket Double 8" | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3146-dunbier-rubber-roller-bracket-double-8)
> Updated: 2026-08-05