Description
Overview:
This crankshaft oil seal is a Genuine Stihl part designed to keep the engine of your compact two‐stroke equipment sealed and running efficiently. Made from a tough, oil‐ and fuel‐resistant elastomer in a low‐profile 4.5 mm depth, it prevents oil mist and air leaks around the crankshaft, helping maintain correct crankcase pressure for reliable starting, stable idle and full power. Sized at 12 x 22 x 4.5 mm (0.47 x 0.87 x 0.18 in), it is a precise fit for small Stihl machines, including chainsaws such as the MS 192 T and MS 193 T. Built for durability under vibration and heat, it is suitable for routine servicing or rebuilds where a clean, dependable seal is essential.
Key Features:
- Genuine Stihl part for correct fit and dependable sealing performance
- Dimensions: 12 x 22 x 4.5 mm (0.47 x 0.87 x 0.18 in) for precise crankshaft fitment
- Oil‐ and fuel‐resistant elastomer construction for long service life
- Helps maintain crankcase vacuum/pressure to support easy starting and smooth running
- Reduces risk of air leaks that can cause poor idle, power loss or lean running
- Protects against dirt ingress at the crankshaft journal
- Compact, low‐profile design suits tight housings and service replacements
- Suitable for preventative maintenance or as part of a top‐end/bottom‐end overhaul
Typical Applications:
Replacement of worn or leaking crankshaft seals on small Stihl two‐stroke engines. Commonly used during routine servicing, clutch side or flywheel side seal changes, engine rebuilds, and to cure hard starting, erratic idle or air‐leak issues on compact chainsaws and hedge trimmers.
Also known as:
Crank seal, crankcase seal, rotary shaft seal, lip seal, main bearing seal, engine shaft seal, sealing ring.
Fits Models:
HS 46, HS 46 C, HS 56 C, MS 192 C, MS 192 T, MS 192 TC, MS 193 C, MS 193 T, MS 193 TC, MS 194 T, MS 194 TC
Alternate Part Numbers:
9639-003-1205, 96390031205
Product Specifications
| L&S Part No. | 9639 003 1205 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 96390031205 |
| Unit of Sale | 1 |
| Size | 12x22x4.5mm |
| Applications | HS 46, HS 46 C, HS 56 C, HS46, HS46 C, HS46C, HS56, HS56C, MS 192 C, MS 192 T, MS 192 TC, MS 193 C, MS 193 T, MS 193 TC, MS 194 T, MS 194 TC, MS192C, MS192T, MS192TC, MS193C, MS193T, MS193TC, MS194T, MS194T / MS194TC, MS194TC |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS192C, MS192T, MS192TC | HS 46, HS46 C | MS193C, MS193T, MS193TC | MS194T / MS194TC | HS56 |
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