1291 Dunbier Knott Jockey Wheel Replacement Plastic Cap | Marine Trailer Part

🔧 Product Description

Dunbier Knott Jockey-Wheel Replacement Plastic Top Cap - Part Number: 1291

A moulded replacement cap for compatible Knott side-wind jockey wheels. It closes the upper gearbox housing, helping retain lubricant and protect the bevel gears from water, dirt and road contamination.

⚙️ Key Features

• Moulded Knott replacement cap

• Protects internal gears and grease

• Helps limit water and grit entry

• Push-fit or retained design matching the original housing

• Simple service replacement

📏 Specifications

• Application: Selected Knott jockey wheels

• Commonly associated with Dunbier 1293 and related Knott models

• Cap profile and retention method must match the existing housing

🔄 Cross Reference & Related Parts

• Dunbier: 1291

• Related Knott jockey wheel: Dunbier 1293

• Verify compatibility with Dunbier 1294 and other TK57 variants

• Related internal gear kit: Dunbier 1280

🚤 Trailer Compatibility & Application

• Suitable only for the matching Knott upper housing

• Not a universal cap for AL-KO, Fulton or generic jockey wheels

• A missing cap should be replaced promptly in marine service

🔌 Function

Covers the gear housing and helps keep lubricant inside while excluding water, sand and road debris.

Common signs of wear or replacement:

• Cap is cracked, loose or missing

• Water and rust are visible inside the gearbox

• Cap no longer snaps or seats firmly

• UV damage makes the plastic brittle

• Grease leaks around the cap edge

🛠️ Installation & Safety

• Clean the housing lip before installation

• Inspect and regrease the gears if the original cap was missing

• Press the cap evenly without damaging the housing

• Do not use adhesive that prevents future servicing unless specified

• Replace any damaged housing that cannot retain the cap

📦 Condition

• Brand new Dunbier Marine Products trailer component

• Supplied as one Knott replacement plastic cap

• Supplied in original or equivalent packaging