Description
Overview:
The Key 4x4x14 for Stihl earth augers is a Genuine Stihl square-section drive key designed to lock rotating components to the auger shaft and ensure reliable torque transfer. Manufactured from durable metal to OEM specification, it seats in the shaft keyway and the mating component to prevent slippage and misalignment. Sized precisely at 4 mm x 4 mm x 14 mm (0.16 in x 0.16 in x 0.55 in), it matches the original fit used on Stihl BT 308 and BT 309 machines and supports smooth, efficient drilling. Supplied under Manufacturer Part Number (MPN) 9470 435 0540, this service-friendly part is ideal when the original key has rounded edges, is worn, or has been lost during gearbox or shaft work. Suitable for trade, hire fleets, and DIY users who need a dependable genuine replacement.
Key Features:
- Genuine Stihl part for correct fit and performance
- Dimensions: 4 mm x 4 mm x 14 mm (0.16 in x 0.16 in x 0.55 in)
- Square parallel key profile to match OEM keyways
- Precision-made to seat firmly and transmit torque without slip
- Helps prevent misalignment, fretting, and premature wear of hubs and shafts
- Robust metal construction for a dependable service life
- Straightforward to fit during routine maintenance or rebuilds
- Stable, positive drive for consistent auger operation
- Suitable for professional, hire fleet, and domestic maintenance schedules
- Direct replacement to restore original engagement after key or shaft replacement
Typical Applications:
Used on Stihl earth augers to secure gears, drums, or couplings to the drive shaft during groundworks. Common in tasks such as fencing holes, landscaping, utilities installation, and soil sampling. Fit when rebuilding gearboxes, replacing shafts or drive hubs, or when the existing key is worn or damaged to restore reliable torque transfer.
Also known as:
Drive key, shaft key, square parallel key 4x4x14 mm, auger key, keyway key, earth auger drive key, 4 mm square key.
Fits Models:
BT 308, BT 309, BT 360
Alternate Part Numbers:
9470 435 0540, 9470-435-0540, 94704350540
Product Specifications
| L&S Part No. | 9470 435 0540 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 94704350540 |
| Unit of Sale | 1 |
| Machine Type | Augers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility with BT 308, BT 309, BT 360 - Dimensions: 4 mm x 4 mm x 14 mm for precise fit - Durable metal construction for reliable torque transmission - Prevents slippage and misalignment during operation - Easy installation during routine maintenance or repairs |
| Fits Models | BT 360 | BT 308 | BT 309 |
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