# 1302 Dunbier Knott Bottom Gear | Marine Trailer Part

🔧 Product Description

  

Dunbier Knott Jockey-Wheel Lower Bevel Gear - Part Number: 1302

  

An individual lower bevel gear for compatible Knott side-wind jockey wheels. It meshes with the upper handle gear and transfers rotation into the vertical screw that extends or retracts the jockey wheel.

  

⚙️ Key Features

  

• Replacement lower bevel gear

• Matches the Knott handle-gear tooth profile

• Drives the vertical lifting screw

• Individual repair component

• Suitable for rebuilding a serviceable gearbox

  

📏 Specifications

  

• Component position: Lower gear on lifting-screw axis

• Exact bore, tooth count and engagement must match the original

• Use with the compatible upper gear and retaining hardware

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 1302

• Matching handle gear: Dunbier 1301

• Complete gears and pins kit: Dunbier 1280

• Top-hat retaining plate: Dunbier 1008

  

🚤 Trailer Compatibility & Application

  

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

• Not universal across all Knott model generations

• Check the screw shaft and thrust surfaces for damage

  

🔌 Function

  

Receives rotation from the handle gear and turns the lifting screw to raise or lower the drawbar.

  

Common signs of wear or replacement:

  

• Teeth are chipped or worn

• Screw does not rotate despite handle movement

• Gear slips under drawbar load

• Bore is loose on the screw shaft

• Rust or contaminated grease causes binding

  

🛠️ Installation & Safety

  

• Support and unload the trailer before repair

• Install as a matched pair where both gears show wear

• Fit all thrust washers and retainers in their original positions

• Lubricate before closing the gearbox

• Verify smooth full-range operation before loading

  

📦 Condition

  

• Brand new Dunbier Marine Products trailer component

• Supplied as one Knott lower bevel gear

• Supplied in original or equivalent packaging

## Details

- **Price:** 14.0 AUD
- **Vendor:** Knott
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 14.00 AUD | In stock |

## Images

- 1302 Dunbier Knott Bottom Gear | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1302-knott-bottom-gear)
> Updated: 2026-08-05