Description
Overview:
This Crankshaft Oil Seal Set is a genuine replacement for Stihl chainsaws, designed to keep the crankcase sealed and the engine running reliably. Supplied as a matched pair of rubber seals, it prevents oil and air leaks from both ends of the crankshaft, helping to maintain proper crankcase pressure, smooth idle, and consistent power. The set is suitable for popular models such as the MS171 and MS180, along with many other Stihl machines that share the same sealing arrangement. Made from durable, oil- and fuel-resistant rubber, it is built to withstand the demands of everyday cutting and site use. Genuine Part. Direct replacement for OEM 9639 003 1585 for a straightforward fit during routine maintenance or repair.
Key Features:
- Genuine Part for assured compatibility and fit
- Direct replacement for OEM 9639 003 1585 and equivalents
- Supplied as a pair to service both crankshaft ends (flywheel and clutch sides)
- Durable rubber construction resists oil, fuel, heat, and vibration
- Helps prevent oil seepage and air leaks that cause poor starting and erratic idle
- Maintains crankcase vacuum for reliable performance and proper carburettor tuning
- Precise fit for MS171, MS180 and many related models, including 2-Mix variants
- Straightforward to install during routine service, reducing downtime
- Suitable for professional users and DIY maintenance
Typical Applications:
Used during engine overhaul or routine servicing to restore crankshaft sealing. Ideal when replacing crank bearings, splitting the crankcase, or diagnosing air leaks that lead to hard starting, high idle, lean running, or oil residue. Helps extend engine life and keep chainsaws operating safely and efficiently.
Also known as:
Crankshaft seal set, crank seals, oil seal kit, shaft oil seals, rotary shaft seals, lip seals, flywheel-side seal and clutch-side seal set, engine oil seals for chainsaws.
Fits Models:
017, 017C, 018, 018C, 019T, 021, 023, 025, BC230, BC230 2-Mix, BR500, BR550, BR600, BR700, BT230, BT230 2-Mix, FR230, FR230 2-Mix, FR230T, FS230, FS230 2-Mix, MS170, MS170 2-Mix, MS170C, MS171, MS171C, MS180, MS180C, MS190T, MS191T, MS210C, MS211, MS211C, MS230, MS230C, MS250, MS250C, MS270, MS270C, MS280, MS280C, MS311, MS391, SG230, SG230 2-Mix, SR440, SR450, WP230, WP230 2-Mix
Alternate Part Numbers:
9639 003 1585, 9639-003-1585, 96390031585, 355-292, 355292
Product Specifications
| L&S Part No. | 355 292 |
|---|---|
| Part Type | Genuine Part |
| Unit of Sale | 1 |
| Machine Type | Chainsaws, Brushcutters, Backpack Blowers |
| Fits Brands | Stihl |
| Key Features | - Genuine replacement for Stihl chainsaws, ensuring compatibility - Direct replacement for OEM 9639 003 1585 - Supplied as a pair for both crankshaft ends - Durable rubber resists oil, fuel, heat, and vibration - Fits MS171, MS180, and many related models |
| Fits Models | MS171, MS171C | 017 | 021, 023, 025 | MS250, MS250C |
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