# 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

## Details

- **Price:** 28.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 28.50 AUD | In stock |

## Images

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

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1280-dunbier-knott-gears-pins-replacement-kit)
> Updated: 2026-08-13