3143 Dunbier 6" Bracket Only - Double | Marine Trailer Part

🔧 Product Description

Genuine Dunbier Marine Products Double Roller Bracket Only for 6" Rollers - Part Number: 3143

A galvanised double rocker bracket fitted with 0 6-inch no rollers supplied rollers. The assembly supports and guides the boat hull during launch and retrieval.

⚙️ Key Features

• No rollers supplied roller construction

• 0-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: 6-inch

• Roller quantity: 0

• Roller material/colour: No rollers supplied

• Leg length: approximately 140mm

• Supply: double bracket only; rollers and shafts are not included

🔄 Cross Reference & Related Parts

• Complete rubber assembly: Dunbier 3142

• Hard-poly assembly: Dunbier 3153

• Soft-poly assembly: Dunbier 3153S

🚤 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