Description
Overview:
This Cylinder Gasket is a genuine Stihl part for two-stroke machines in the 4137 engine family, including FH75 and FC85 (MPN 4137 029 2300). It sits between the cylinder and engine block to create an accurate, airtight seal. Made from durable, heat- and fuel-resistant gasket material, it helps maintain compression, prevents air and fluid leaks, and supports smooth starting and consistent power. Ideal for brushcutters, hedge trimmers, blowers, edgers, pole pruners, and multi-tool powerheads that use this engine type, it is suitable for routine top-end servicing as well as repairs. Designed to match the original profile and port layout, it offers a precise fit that helps protect engine efficiency and longevity.
Key Features:
- Genuine Stihl part for assured compatibility and performance (MPN 4137 029 2300)
- Precision cut to match the original porting and bolt pattern for an exact fit
- Heat, fuel, and oil resistant gasket material for reliable sealing under working temperatures
- Helps restore and maintain compression, improving starting and throttle response
- Reduces risk of false-air intake and fluid leaks that can cause poor running
- Suitable for professional and DIY maintenance during top-end rebuilds or routine service
- Straightforward to fit with standard workshop tools and OEM assembly procedures
- Supports engine efficiency and helps extend service life when replacing a worn gasket
Typical Applications:
Used during cylinder removal and refitting, piston/ring replacement, decarbonising, or after overheating events. Replaces brittle, damaged, or leaking gaskets to restore proper sealing between cylinder and crankcase. Common for scheduled maintenance on Stihl trimmers, brushcutters, hedge trimmers, blowers, edgers, pole pruners, and Kombi engines that share the 4137-series top end.
Also known as:
Cylinder base gasket, base gasket, barrel gasket, top-end gasket, crankcase-to-cylinder gasket, engine base seal. These names are often used interchangeably for the sealing layer at the cylinder base on small two-stroke engines.
Fits Models:
BG75, FC73, FC75, FC85, FH75, FR85, FR85T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL75, HL75K, HS75, HS80, HS85, HT70, HT70K, HT75, KM85, KM85R, KW85, SP80, SP80K, SP85, SP85K
Alternate Part Numbers:
4137 029 2300, 41370292300
Product Specifications
| L&S Part No. | 4137 029 2300 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41370292300 |
| Unit of Sale | 1 |
| Applications | BG75, FC 73, FC 75, FC 85, FC73, FC75, FC85, FH75, FR85, FR85T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL75, HL75K, HS75, HS80, HS85, HT70, HT70K, HT75, KM85, KM85R, KW 85, KW85, SP80, SP80K, SP85, SP85K |
| Machine Type | Brushcutters, Pole Pruners, Hedgetrimmers |
| Fits Brands | Stihl |
| Fits Models | FS75, FS80, FS85 | HS75 | BG75 | FR85T, FR85 | HT70, HT70K, HT75 | KM85, KM85R | KW 85 | FC 73 | FC 75 | FC 85 | HL75, HL75K | HS80 | HS85 | SP 85 |
