Description
Overview:
The Stihl Woodruff Key 2 x 3.7 is a small, half‐moon steel key used to lock rotating components to a shaft, preventing slip and keeping timing and alignment correct. It sits in a machined keyway on the crankshaft or motor shaft and engages with the matching slot in the flywheel, clutch drum, pulley, or drive hub. Made from durable steel for consistent shear strength, it is suitable for a wide range of Stihl tools including chainsaws and cut-off saws such as the 084 and 026. This is a Genuine Stihl part for trusted fit and function, ideal for maintenance, rebuilds, and repairs where accurate location of rotating parts is essential. Size: 2 mm x 3.7 mm. MPN: 1120 036 8500.
Key Features:
- Genuine Stihl part (1120 036 8500) for OE fit and reliability
- Size 2 mm x 3.7 mm for correct seating in Stihl keyways
- Precision half‐moon profile maintains flywheel and pulley alignment
- Durable steel resists wear and shear under engine load
- Helps preserve correct ignition timing and clutch engagement
- Simple, like‐for‐like replacement during servicing or rebuilds
- Supports smooth starting and running by preventing shaft/component slip
- Compatible across many Stihl chainsaws, brushcutters, blowers, and cut‐off saws
- Stable location aids long service life of mating parts
- Compact and easy to handle for workshop or site repairs
Typical Applications:
Used to secure flywheels, clutches, starter pulleys, and drive hubs to the crankshaft or motor shaft on Stihl equipment. Common during engine rebuilds, ignition repairs, or after a sheared key caused by sudden stoppage. Suitable for chainsaws, brushcutters, blowers, and cut‐off saws where accurate component positioning and reliable power transmission are required.
Also known as:
Half‐moon key, crankshaft key, flywheel key, engine key, shaft key, drive key, Woodruff wedge. These terms describe the same component used to locate and lock rotating parts on a shaft to prevent relative movement.
Fits Models:
009, 010, 011, 012, 020, 020T, 024, 026, 028, 028AV, 034, 036, 036QS, 038, 044, 046, 048, 050, 051, 064, 066, 076, 084, 088, 400, BG17, BR320, BR340, BR340L, BR380, BR400, BR420, BR420C, FS160, FS180, FS220, FS280, FS290, FS360, FS360C, FS410C, FS420, FS420L, FS500, FS550, FS550L, GS461, MC200, MS200, MS200T, MS240, MS260, MS260C, MS340, MS360, MS360C, MS380, MS381, MS440, MS460, MS461, MS640, MS650, MS651, MS660, MS661, MS661C, MS780, MS880, MS881, SG17, SG17L, SR320, SR340, SR400, SR420, TS480i, TS500i, TS510, TS700, TS760, TS800
Alternate Part Numbers:
1120-036-8500, 11200368500
Product Specifications
| L&S Part No. | 1120 036 8500 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11200368500 |
| Unit of Sale | 1 |
| Applications | 009, 010, 011, 012, 020, 020T, 024, 026, 028, 028AV, 034, 036, 036QS, 038, 044, 046, 048, 050, 051, 064, 066, 076, 084, 088, 400, BG17, BR320, BR340, BR340L, BR380, BR400, BR420, BR420C, FS160, FS180, FS220, FS280, FS290, FS360, FS360C, FS410C, FS420, FS420L, FS500, FS550, FS550L, GS461, MC200, MS200, MS200T, MS240, MS260, MS260C, MS340, MS360, MS360C, MS380, MS381, MS440, MS460, MS461, MS640, MS650, MS651, MS660, MS661, MS661C, MS780, MS880, MS881, SG17, SG17L, SR 320, SR 340, SR 420, SR320, SR340, SR400, SR420, TS480i, TS500i, TS510, TS700, TS760, TS800 |
| Machine Type | Brushcutters, Chainsaws, Backpack Blowers, Disc Cutters |
| Fits Brands | Stihl |
| Fits Models | MS200, MS200T | MS260, MS260C | 028, 028AV | MS440 | MS460 | MS240 | MS340 | MS360, MS360C | MS380 | MS640 | TS700 | TS510 | 009 | FS220, FS280, FS290 | FS360C FS410C | FS500, FS550, FS550L | BR320, BR400 | TS480i, TS500i | FS160, FS180 | FS360, FS420, FS420L (older models) | TS800 | 010, 011 | 012 | 020, 020T | 024 | 026 | 034 | MS381 | MS461 | MS650 | MS651 | MS660 | MS661, MS661C | MS780 | MS880 | 036 | 036QS | 038 | 044 | 046 | 048 | 050, 051 | 064 | 076 | 084 | 088 | 066 | SR 320, 400 | SR 340, SR 420 | SG17, SG17L | MS881 | GS461 | TS760 | MC 200 |
Reviews
Ask a Question (3)
Compatibility
Customers also bought
-
![]()
Exhaust Gasket for Stihl TS400 - 1125 149 0601£3.12 £2.60
