1280 Dunbier Knott Gears and Pins Replacement Kit | Marine Trailer Part

🔧 Product Description

Dunbier Knott Jockey-Wheel Gear and Roll-Pin Repair Kit - Part Number: 1280

A replacement internal gear and retaining-pin kit for compatible Knott jockey wheels. The kit renews the bevel-gear drive that transfers handle rotation into vertical screw movement and is intended for rebuilding a serviceable tube, screw and mounting assembly.

⚙️ Key Features

• Matched Knott internal gear set

• Includes associated retaining or roll pins as supplied

• Restores side-wind lifting operation

• Suitable for serviceable Knott jockey-wheel housings

• Reduces the need to replace the complete jockey wheel

📏 Specifications

• Component type: Internal bevel gears and pins

• Exact tooth count, bore and pin diameter must match the original

• Application must be verified from the installed Knott model

🔄 Cross Reference & Related Parts

• Dunbier: 1280

• Top-hat retaining plate: Dunbier 1008

• Individual handle gear: Dunbier 1301

• Individual bottom gear: Dunbier 1302

• Related Knott jockey wheels: Dunbier 1293 and 1294 where compatible

🚤 Trailer Compatibility & Application

• Suitable for selected Knott side-wind jockey-wheel gearboxes

• Not universal for all generations of TK57 or other Knott support wheels

• Replace the complete wheel if the screw, tube, pivot or mounting bracket is structurally worn

🔌 Function

Transfers crank-handle rotation through the bevel gears to the vertical lifting screw.

Common signs of wear or replacement:

• Handle turns without raising the trailer

• Gear teeth skip, chip or bind

• Roll pin shears repeatedly

• Metal particles are present in the gearbox

• Excessive backlash is felt at the handle

🛠️ Installation & Safety

• Safely unload the jockey wheel before disassembly

• Compare every new gear and pin with the removed parts

• Install roll pins using proper support and punches

• Lubricate gears and screw with water-resistant grease

• Check full extension and retraction without load before service

📦 Condition

• Brand new Dunbier Marine Products trailer component

• Supplied as one Knott gear-and-pin repair kit

• Supplied in original or equivalent packaging