1293 Dunbier H3941 Mackay Knott Swing-Up Jockey Wheel TK57-210/50m | Marine Trailer Part

🔧 Product Description

Dunbier Knott TK57 Side-Wind Swing-Up Jockey Wheel 210 × 50mm - Part Number: 1293

A premium European-designed Knott TK57 side-wind jockey wheel with a 210 × 50mm wheel, galvanised swing-up bracket and 255mm lift height. Dunbier and Mackay catalogue the assembly at 545kg capacity, while current Knott versions of the TK57 family may carry a 500kg static rating; use the marking on the supplied unit.

⚙️ Key Features

• Knott TK57 premium side-wind design

• Swing-up bracket for travel

• Galvanised marine-trailer finish

• Narrow 210 × 50mm wheel

• Side handle provides easy access beside the drawbar

📏 Specifications

• Catalogue capacity: 545kg Dunbier/Mackay

• Current Knott family static rating may be 500kg depending version

• Lift height: Approximately 255mm

• Wheel size: 210 × 50mm

• Outer tube diameter: TK57 57mm family

🔄 Cross Reference & Related Parts

• Dunbier: 1293

• Mackay: H3941

• Knott family: TK57

• Replacement handle: Dunbier 1295

• Replacement wheel: Dunbier 1298

• Replacement cap: Dunbier 1291

• Related gear parts: Dunbier 1280, 1301 and 1302 where compatible

🚤 Trailer Compatibility & Application

• Suitable for medium and heavy boat trailers within the marked nose-load capacity

• Narrow wheel is easier to package than the 75mm-wide 1294 wheel

• Mounting bracket must fit the drawbar and provide complete swing clearance

🔌 Function

Raises and supports the trailer drawbar and provides a wheel for controlled manual movement when uncoupled.

Common signs of wear or replacement:

• Gear skips or handle turns without lifting

• Swing mechanism does not lock

• Wheel is cracked, seized or heavily worn

• Inner tube has excessive side play

• Screw binds from corrosion or lack of grease

🛠️ Installation & Safety

• Install using the specified Knott mounting arrangement and rated fasteners

• Do not exceed the permanent rating label

• Fully retract and lock in the travel position before towing

• Lubricate the screw and gears with water-resistant grease

• Never work beneath a trailer supported only by a jockey wheel

📦 Condition

• Brand new Dunbier Marine Products trailer component

• Supplied as one complete Knott TK57 210 × 50mm swing-up jockey wheel

• Supplied in original or equivalent packaging