Description
Overview:
The Carburettor C1Q-S198 is a genuine Stihl replacement part for two-stroke hedge trimmers in the HS 81 and HS 86 series. Built with a durable metal body, it meters the correct air-fuel mix to keep the engine starting reliably, idling steadily and delivering clean acceleration under load. Use it to replace a worn, damaged or contaminated carburettor that is causing hard starting, poor idle or loss of power. As an OEM component, it is engineered to match the original specification for fit and function across the HS 81/86 variants used by gardeners, landscapers and grounds teams. Stihl reference 4237 120 0611 is commonly associated with this unit.
Key Features:
- Genuine Stihl OEM carburettor C1Q-S198 for precise fit and correct operation
- Restores accurate fuel and air metering for easier starting, stable idle and consistent power
- Robust metal construction suited to regular professional and domestic use
- Compatible across HS 81 and HS 86 series variants (R, RC, T, TC where applicable)
- Straightforward swap-over with standard hand tools; designed to seat correctly on the intake manifold
- May require basic idle speed and mixture adjustments during installation to suit your engine and fuel
- Helps reduce symptoms linked to a failing carburettor such as bogging, stalling and flat spots
- Works with unleaded petrol mixed with quality two-stroke oil at the manufacturer's recommended ratio
Typical Applications:
Used to restore reliable running of Stihl HS 81/86 hedge trimmers in routine maintenance or repair. Suitable for machines used in garden maintenance, commercial landscaping, groundskeeping and estate work where consistent starting, smooth idle and clean cutting performance are required.
Also known as:
Carb, carb assembly, hedge trimmer carburettor, fuel metering unit, carburettor body, C1Q-S198 carb, replacement carb for Stihl HS 81/HS 86 series.
Fits Models:
HS 81, HS 81 R, HS 81 RC, HS 81 T, HS 81 TC, HS 86, HS 86 R, HS 86 T, HS81, HS81R, HS81RC, HS81T, HS81TC, HS86, HS86R, HS86T
Alternate Part Numbers:
4237-120-0611, 4237 120 0606, 4237-120-0606, 42371200611, 42371200606
Product Specifications
| L&S Part No. | 4237 120 0611 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42371200611 |
| Unit of Sale | 1 |
| Size | Length: 90mm width: 80mm Depth: 50mm |
| Machine Type | Hedgetrimmers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM carburettor C1Q-S198 for HS 81/86 series - Restores accurate fuel and air metering for reliable performance - Durable metal construction for professional and domestic use - Compatible with HS 81, HS 86, and variants - Requires basic idle speed and mixture adjustments during installation |
| Fits Models | HS81, HS86 |
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