2890B Dunbier Black Bumper Block | Marine Trailer Part

🔧 Product Description

Dunbier Black Channel Bumper Block for 55mm family Internal Carrier - Part Number: 2890B

A moulded black channel-style bumper block designed to fit over a trailer support or guide with approximately 55mm family internal width. It creates a continuous hull-protection surface over metal guide arms, bunks or frame members.

⚙️ Key Features

• Black hull-contact surface

• Designed around an approximately 55mm family internal channel

• Cushions and separates the hull from steel support hardware

• Suitable for cut-to-length trailer-guide applications

• Marine-resistant moulded material

📏 Specifications

• Colour: Black

• Internal channel: Approximately 55mm family

• Length: Current supplied length; confirm before ordering

• Mounting hardware is not included unless stated

🔄 Cross Reference & Related Parts

• Dunbier: 2890B

• 55mm family: 2890, 2890B, 2890B-3M and 2890G

• 40mm family: Dunbier 2891B

• Rolla-arm block: Dunbier 2888

🚤 Trailer Compatibility & Application

• Suitable for correctly sized Dunbier guide, bumper and support sections

• Measure the carrier's outside dimensions and the block's internal channel before purchase

• Use only where the block provides even hull support

🔌 Function

Provides a replaceable low-friction buffer between the boat hull and trailer support structure.

Common signs of wear or failure:

• Block is split or detached

• Hull-contact face is worn through

• Material is hardened or brittle

• Fasteners are exposed

• Block no longer grips the support section

🛠️ Installation & Safety

• Cut squarely using suitable tools

• Deburr and clean the support

• Secure with recessed fasteners or the specified retention method

• Avoid joints at high-load hull-contact points

• Confirm no sharp metal remains exposed

📦 Condition

• Genuine Dunbier Marine Products part

• Brand new

• Supplied as one black bumper block

• Supplied in original or equivalent packaging