Description
Overview:
This Genuine Stihl gasket (OEM part number 4137 129 0900) is a precision-cut sealing component for Stihl two-stroke handheld machinery such as the SP85 and SP85K. Made from a durable, heat- and fuel-resistant composite material, it provides a tight, reliable seal between mating engine surfaces to prevent air, fuel, and exhaust leaks. A correct seal helps maintain compression, stable idle, clean acceleration, and overall engine efficiency. It is suited to a wide range of Stihl tools sharing the same engine platform, including blowers, brushcutters, hedge trimmers, pole pruners, Kombi engines, and sprayers. As a Genuine Part, it offers assured compatibility and fitment on listed models, supporting dependable performance and long service life in demanding garden, landscaping, and light construction work.
Key Features:
- Genuine Stihl OEM gasket for assured compatibility and performance (Part No. 4137 129 0900)
- Robust composite material resists heat, fuel, and vibration for long-lasting sealing
- Accurate profile and hole alignment for a precise fit on specified engines
- Helps prevent air leaks that can cause hard starting, poor running, or overheating
- Supports correct engine sealing for consistent power, throttle response, and idle
- Suitable for routine maintenance, rebuilds, or after component removal and refitting
- Designed for straightforward fitting with basic hand tools on matching Stihl models
- Cross-references: 4137-129-0900, 41371290900
Typical Applications:
Used when servicing or rebuilding Stihl handheld engines to reseal joints between engine housings and related components. Ideal after carburettor, cylinder, or muffler removal, or when diagnosing vacuum leaks. Common in regular maintenance of blowers, brushcutters, hedge trimmers, pole pruners, sprayers, and Kombi units operating in landscaping, grounds care, estate maintenance, and light professional use.
Also known as:
Engine gasket, sealing gasket, joint gasket, mounting gasket, packing gasket, paper/composite gasket, engine seal, manifold gasket (context-dependent).
Fits Models:
BG75, FC73, FC75, FC85, FH75, FR85, FR85T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL75, HL75K, HS75, HS80, HS85, HT70, HT70K, HT75, KA85R, KM85, KM85R, KR85, KW85, KW 85, SP80, SP80K, SP81, SP85, SP85K
Alternate Part Numbers:
4137-129-0900, 41371290900
Product Specifications
| L&S Part No. | 4137 129 0900 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41371290900 |
| 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, KA85R, KA85R Attachment, KM85, KM85R, KR85, KR85 Attachment, KW 85, KW85, SP80, SP80K, SP81, SP85, SP85K |
| Machine Type | Brushcutters, Pole Pruners, Hedgetrimmers, Blower/Shredders |
| Fits Brands | Stihl |
| Fits Models | FS75, FS80, FS85 | HS75 | BG75 | FR85T, FR85 | HT70, HT70K, HT75 | KM85, KM85R | KA85R Attachment | KR85 Attachment | KW 85 | FC 73 | FC 75 | FC 85 | HL75, HL75K | HS80 | HS85 | SP 85 |
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