# 3293 Dunbier Centre Parallel Member 600mm Long (4) Hole | Marine Trailer Part

🔧 Product Description

  

Genuine Dunbier Marine Products Supa-Rolla Centre Parallel Member - 600mm Four-Hole - Part Number: 3293

  

A galvanised rectangular or square parallel member for mounting Dunbier Supa-Rolla arm assemblies. The pre-drilled four holes-hole layout positions the roller stations along the trailer while allowing the complete member to be mounted or adjusted.

  

⚙️ Key Features

  

• Galvanised structural trailer tube

• Pre-drilled four holes-hole roller-arm layout

• Designed for two Supa-Rolla arm sets

• Supports adjustable Supa-Rolla assemblies

• Replacement for damaged or corroded original member

  

📏 Specifications

  

• Tube size and length: 50 × 50 × 600mm in the current Dunbier catalogue

• Mounting-hole configuration: four holes

• Roller-arm capacity: two Supa-Rolla arm sets

• Roller arms, bubble plates and U-bolts are supplied separately unless stated

  

🔄 Cross Reference & Related Parts

  

• Supa-Rolla arm assembly: Dunbier 3261

• Rear members: Dunbier 3294, 3295 and 3297

  

🚤 Compatibility & Application

  

• Compatible Dunbier Supa-Rolla trailer system

• Confirm trailer frame width, member orientation and mounting-hole positions

• Set left and right roller stations symmetrically

• Use the correct U-bolts and side plates

  

🔌 Function

  

Provides the structural crosswise or parallel mounting rail for multiple Supa-Rolla arm assemblies.

  

Common signs of wear, damage or replacement required:

  

• Member is bent, twisted or cracked

• Mounting holes are elongated

• Galvanising is damaged and corrosion reduces wall thickness

• Roller arms no longer align

• Member moves relative to the trailer frame

  

📦 Condition

  

• Genuine Dunbier Marine Products part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 111.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 111.50 AUD | In stock |

## Images

- 3293 Dunbier Centre Parallel Member 600mm Long (4) Hole | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3293-dunbier-centre-parallel-member-600mm-long-4-hole)
> Updated: 2026-08-05