3156H Dunbier Hard Poly Roller and Bracket 8" | Marine Trailer Part

🔧 Product Description

Genuine Dunbier Marine Products Single Hard-Poly Roller and Bracket 8" - Part Number: 3156H

A galvanised single roller bracket fitted with 1 8-inch hard polyurethane roller. The assembly supports and guides the boat hull during launch and retrieval.

⚙️ Key Features

• Hard polyurethane roller construction

• 1-roller single roller 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: 1

• Roller material/colour: Hard polyurethane, grey/blue depending production

• Leg length: Follow supplied bracket configuration

• Supply: complete roller and bracket assembly

🔄 Cross Reference & Related Parts

• Soft-poly version: Dunbier 3156

• Double hard-poly version: Dunbier 3157H

🚤 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