Description
Overview:
This Genuine Stihl gasket (part number 1129 129 0900) is a small but critical sealing component for Stihl two‐stroke machines such as brushcutters, trimmers, blowers, hedge trimmers, cut‐off tools, augers and chainsaws. Made from a durable, fuel‐ and heat‐resistant gasket material suitable for petrol equipment, it provides a tight seal between mating engine or intake components to prevent air, fuel and oil leaks. A proper seal helps maintain correct mixture, compression and smooth running, supporting reliable starting and consistent performance. Designed to the original specification, it offers a precise fit on compatible machines, including popular models like the FS55 and FS200. As a Genuine Stihl OEM part, it matches the original thickness and profile for dependable service life and easy installation.
Key Features:
- Genuine Stihl OEM part for quality, fit and reliability
- Helps prevent air, fuel and oil leaks for stable running and good starting
- Correct profile and thickness to maintain proper sealing surfaces
- Durable construction suitable for heat and petrol exposure in two‐stroke engines
- Supports engine efficiency by maintaining compression and mixture integrity
- Ideal to replace whenever related components are removed or serviced
- Wide compatibility across many Stihl handheld machines
- Simple to fit with standard hand tools; no modifications required
- Replaces Stihl numbers 1129-129-0900 and 11291290900
Typical Applications:
Used during routine servicing, carburettor or intake removal, engine rebuilds, or when an existing gasket is damaged or leaking. Typical jobs include restoring correct sealing after maintenance, addressing poor idle or hard starting caused by air leaks, and preventing fuel or oil seepage around mating faces on Stihl brushcutters, trimmers, blowers, hedge trimmers, chainsaws and other handheld equipment.
Also known as:
Engine gasket, carburettor gasket, intake gasket, sealing gasket, spacer gasket, paper gasket, sealing washer, engine seal. These terms are often used for thin seals fitted between small-engine components to maintain airtight and fuel‐tight joints.
Fits Models:
020, 020T, BG45, BG46, BG55, BG65, BG85, BT 120 C, BT 121, BT 121 Z, BT120C, BT121, BT121Z, FC 73, FC 75, FC 85, FC55, FC73, FC75, FC85, FH75, FR350, FR450, FR480, FR480C, FR85, FR85T, FS120, FS120R, FS200, FS200R, FS250, FS250R, FS300, FS350, FS38, FS380, FS400, FS45, FS450, FS45C, FS45L, FS46, FS46C, FS480, FS55, FS55C, FS55R, FS55RC, FS55T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, FT250, HL45, HL75, HL75K, HS45, HT70, HT70K, HT75, KM55, KM55C, KM55R, KM55RC, KM85, KM85R, KW 85, KW85, MC200, MS191T, MS192C, MS192T, MS192TC, MS200, MS200T, SH55, SH85, SP200, SP400, SP450, SP80, SP80K, SP85, SP85K
Alternate Part Numbers:
1129-129-0900, 11291290900
Product Specifications
| L&S Part No. | 1129 129 0900 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11291290900 |
| Unit of Sale | 1 |
| Applications | 020, 020T, BG45, BG46, BG55, BG65, BG85, BT 120 C, BT 121, BT 121 Z, BT120C, BT121, BT121Z, FC 73, FC 75, FC 85, FC55, FC73, FC75, FC85, FH75, FR350, FR450, FR480, FR480C, FR85, FR85T, FS120, FS120R, FS200, FS200R, FS250, FS250R, FS300, FS350, FS38, FS380, FS400, FS45, FS450, FS45C, FS45L, FS46, FS46C, FS480, FS55, FS55C, FS55R, FS55RC, FS55T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, FT250, HL45, HL75, HL75K, HS45, HT70, HT70K, HT75, KM55, KM55C, KM55R, KM55RC, KM85, KM85R, KW 85, KW85, MC200, MS191T, MS192C, MS192T, MS192TC, MS200, MS200T, SH55, SH85, SP200, SP400, SP450, SP80, SP80K, SP85, SP85K |
| Machine Type | Brushcutters, Pole Pruners, Hedge Trimmers, Chainsaws, Blower/Shredders, Trimmers |
| Fits Brands | Stihl |
| Fits Models | MS200, MS200T | MS192C, MS192T, MS192TC | FS38, FS45, FS46 | FS55, FS55C, FS55R | FS75, FS80, FS85 | FS120, FS200, FS250 | FS300, FS350, FS380 | FS400, FS450, FS480 | HS45 | SH55, SH85 | FR85T, FR85 | FR350, FR450, FR480, FR480C | 020, 020T | HT70, HT70K, HT75 | MS191T | KM55, KM55C, KM55R, KM55RC | KM85, KM85R | KW 85 | FC 73 | FC 75 | FC 85 | BT 120 C | BT 121 | BT 121 Z | HL45 | HL75, HL75K | BG55 | BG85 | SP 85 | MC 200 |
