Description
Overview:
The Cylinder Gasket for Stihl HS81R and HS81RC is a Genuine Stihl part (OEM 4237 029 2300) that seals the joint between the cylinder and crankcase on two-stroke hedge trimmers. Made from a heat‐resistant fibre composite engineered for small engines, it maintains compression, prevents air and oil/fuel leaks, and supports smooth, efficient running. This gasket is designed specifically for Stihl hedge trimmers in the HS81 and HS86 families, delivering the right thickness and profile for correct port timing and a reliable seal. Its precision cutouts align with factory bolt patterns and transfer ports, helping to restore performance after top‐end servicing or rebuilds. Suitable for routine maintenance or repairs, it offers dependable fit and durability for busy trades and regular garden use.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- Correct thickness and profile for an accurate, gas‐tight seal
- Heat‐ and fuel‐resistant fibre composite for durability in two‐stroke engines
- Helps maintain compression and stable idle for easier starting and consistent power
- Reduces risk of air leaks that can cause poor running or piston damage
- Clean cutouts for fast alignment with cylinder studs and ports
- Supports quick refits during routine top‐end maintenance, minimising downtime
- Suitable for HS81/HS86 series hedge trimmers used in domestic, professional, and grounds care settings
Typical Applications:
Used when replacing or refitting the cylinder on Stihl HS81/HS86 series hedge trimmers after de‐carboning, piston/ring replacement, or full top‐end rebuilds. Ideal for fixing air leaks, restoring compression, and addressing hard starting, erratic idle, or loss of power. Fits well into preventative maintenance schedules to keep machines reliable through seasonal work.
Also known as:
Cylinder base gasket, base gasket, barrel gasket, top‐end gasket, engine sealing gasket for two‐stroke trimmers, crankcase-to-cylinder gasket.
Fits Models:
HS81, HS81R, HS81RC, HS81T, HS81TC, HS86, HS86R, HS86T
Alternate Part Numbers:
4237 029 2300, 42370292300
Product Specifications
| L&S Part No. | 4237 029 2300 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42370292300 |
| Unit of Sale | 1 |
| Applications | HS81, HS81R, HS81RC, HS81T, HS81TC, HS86, HS86R, HS86T |
| Machine Type | Hedgetrimmers |
| Fits Brands | Stihl |
| Fits Models | HS81, HS86 |
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