Description
Overview:
The Oil Seal 13x22x5 is a Genuine Stihl part designed to prevent oil leaks and protect internal components in Stihl power equipment. Manufactured to tight tolerances, it uses a durable, oil‐resistant elastomer with metal reinforcement to maintain a stable, long‐lasting seal under engine vibration and temperature changes. With 13 mm inner diameter, 22 mm outer diameter, and 5 mm thickness, it is sized for correct seating in the housing while maintaining consistent lip contact on the shaft. Suitable for professional and domestic machines including the Stihl MS 380 chainsaw and BR 320 blower, it helps preserve engine efficiency, reduce oil consumption, and keep contaminants out, supporting reliable operation and extended service life. Manufacturer Part Number: 9640 003 1340.
Key Features:
- Genuine Stihl part for assured compatibility and dependable performance
- 13 mm ID x 22 mm OD x 5 mm thickness for a precise, press-fit installation
- Oil‐resistant elastomer and metal-reinforced construction for durability
- Helps prevent oil loss and ingress of dust and debris to protect bearings and seals
- Stable sealing performance under vibration and temperature cycling
- Supports engine efficiency and smooth running, reducing unplanned downtime
- Suitable for chainsaws, blowers and brushcutters in tough site or garden use
- Direct replacement for worn or leaking seals to restore correct crankcase sealing
- Clean, simple fitment with standard workshop tools when installed to specification
Typical Applications:
Used to seal rotating shafts in engines and gearcases on chainsaws, backpack blowers, and brushcutters. Commonly fitted to crankshaft ends, clutch or flywheel sides, and other housings where oil retention and dust exclusion are essential for reliable operation and reduced maintenance.
Also known as:
Oil lip seal, rotary shaft seal, shaft oil seal, crank seal, seal ring, mechanical seal.
Fits Models:
028, 028 AV, 030, 031, 032, 038, MS 380, MS 381, BR 320, BR 340, BR 380, BR 400, BR 420, FS 360, FS 360 C, FS 410 C, FS 420, FS 420 L, FS 500, FS 550, FS 550 L, SR 320, SR 340, SR 400, SR 420
Alternate Part Numbers:
9640-003-1340, 9633 003 1340, 96400031340, 96330031340
Product Specifications
| L&S Part No. | 9640 003 1340 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 96400031340 |
| Unit of Sale | 1 |
| Machine Type | Blower/Shredders, Brushcutters, Chainsaws, Mist Blowers |
| Key Features | - 13 mm ID x 22 mm OD x 5 mm thickness - Oil-resistant elastomer with metal reinforcement - Fits Stihl MS 380 chainsaw and BR 320 blower - Prevents oil leaks and dust ingress - Suitable for chainsaws, blowers, and brushcutters |
| Fits Models | 030, 031 | 028, 028AV | MS380 | FS360C FS410C | FS500, FS550, FS550L | BR320, BR400 | FS360, FS420, FS420L (older models) | 032 | MS381 | 038 | SR 320, 400 | SR 340, SR 420 |
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