# 3045 Dunbier Galvanised 3100mm Roller Rail 11 x 8" Hard Poly Rollers | Marine Trailer Part

🔧 Product Description

  

Dunbier Galvanised Roller Rail 3100mm with Eleven 8-Inch Hard-Poly Rollers - Part Number: 3045

  

A complete galvanised longitudinal trailer roller rail measuring approximately 3100mm and fitted with 11 8" hard poly rollers. The multi-roller layout distributes hull load along the keel or lower hull and provides a low-friction path for launch and retrieval.

  

⚙️ Key Features

  

• Hot-dip galvanised or galvanised rail construction

• Overall rail length: Approximately 3100mm

• Includes 11 × 8" hard-poly rollers

• Multiple support points spread hull load

• Designed for marine trailer launch and retrieval systems

  

📏 Specifications

  

• Rail length: 3100mm

• Roller quantity: 11

• Roller size: 8"

• Roller material: Hard poly

• Mounting holes, brackets and roller-pin arrangement must be matched to the trailer

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 3045

• Individual replacement rollers and pins should be matched by size and bore

• Related Glider and Centreline kits do not include these full roller rails unless specifically stated

  

🚤 Trailer Compatibility & Application

  

• Suitable for Dunbier and compatible custom roller trailers where the rail length and mounting layout match

• Hard-poly rollers are commonly selected for aluminium and robust hull contact

• The rail must be supported at the specified mounting points and adjusted to share load with other rails

  

🔌 Function

  

Supports the hull across multiple rollers and provides a continuous rolling path into the trailer.

  

Common signs of wear or replacement:

  

• Rail is bent, twisted or heavily corroded

• Rollers are seized, cracked or unevenly worn

• Pins and bracket holes are grooved

• Hull load is concentrated on only one or two rollers

• Mounting points are cracked or loose

  

🛠️ Installation & Safety

  

• Support the boat and measure the original rail before removal

• Install to reinforced cross members using rated mounting hardware

• Set rail height and angle to share load evenly

• Confirm every roller turns freely

• Recheck all mounting bolts and hull clearances after retrieval

  

📦 Condition

  

• Brand new Dunbier Marine Products trailer component

• Supplied as one complete 3100mm galvanised roller rail with 11 rollers

• Supplied in original or equivalent packaging

## Details

- **Price:** 1095.0 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1095.00 AUD | In stock |

## Images

- 3045 Dunbier Galvanised 3100mm Roller Rail 11 x 8" Hard Poly Rollers | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3045-dunbier-galvanized-3100mm-roller-rail-11-x-8-hard-poly-rollers)
> Updated: 2026-08-05