2886 Dunbier R2090 Mackay 75mm Poly Bow Roller Set and Bolt | Marine Trailer Part

🔧 Product Description

Dunbier Yellow Poly Bow-Roller Set for 75mm Winch Carrier – Part Number: 2886

A complete non-marking yellow polyurethane bow-roller assembly for a 75mm-wide Dunbier winch carrier. The set includes the centre roller, two flared end caps and a galvanised M12 shaft/bolt to support and centre the boat's bow at the winch post.

⚙️ Key Features

• Non-marking yellow polyurethane centre roller
• Two flared end caps help centre the bow
• Galvanised M12 retaining shaft/bolt
• Designed for a 75mm winch carrier
• Complete matched replacement set

📏 Specifications

• Winch-carrier width: 75mm
• Centre roller: 70mm diameter × 70mm long
• End-cap outside diameter: 100mm
• Retaining bolt/shaft: M12 × approximately 130mm
• Material: UV-stable polyurethane with galvanised steel hardware

🔄 Cross Reference & Related Parts

• Dunbier: 2886
• Mackay: R2090
• Smaller/larger matched set: Dunbier 2886 or 2887
• Do not substitute a roller set with a different carrier width

🚤 Trailer Compatibility & Application

• Suitable for Dunbier winch carriers with an internal width around 75mm
• Used on tinnies, inflatables and fibreglass boats where the bow meets the winch-post roller
• Bow shape and eye position must align with the roller centre

🔌 Function

Supports and centres the bow during retrieval and provides a cushioned stop ahead of the winch post.

⚠️ Common Signs of Failure

• Roller is split, flattened or seized
• End caps are missing or heavily worn
• Bolt is bent or corroded
• Roller marks or scratches the hull
• Excessive side play allows the bow to contact the bracket

🛠️ Installation & Safety

• Support the bow before removing the old roller
• Install the shaft through the complete matched roller set
• Tighten the locknut while allowing free roller rotation
• Align the roller with the bow eye and winch strap
• Replace bent carrier brackets before fitting the new set

📦 Condition

• Genuine Dunbier Marine Products part
• Brand new
• Supplied as one complete 75mm poly bow-roller set with bolt
• Supplied in original or equivalent packaging