Description
Overview:
The Carburettor C1Q-S58A is a genuine Stihl replacement for selected light-duty brushcutters and trimmers, including the FS55 and FS55C. Identified by OEM No. 4140 120 0610, it meters the air-fuel mix to keep a two-stroke engine starting easily, idling smoothly and delivering clean acceleration. The unit features a robust die-cast aluminium body with fuel‐resistant diaphragms and seals to handle everyday outdoor use. Designed to match the original linkage points and fuel connections on compatible machines, it is a straightforward swap for a worn or contaminated carburettor. Built to Stihl's specifications, it restores reliable running and helps maintain power, fuel efficiency and emissions performance across a range of compatible Stihl models used by gardeners, grounds teams and trades.
Key Features:
- Genuine Stihl part for assured fit, function and compatibility on listed models
- Direct replacement for OEM 4140 120 0610 to restore correct air-fuel metering
- Durable die-cast aluminium body and fuel-resistant diaphragms for long service life
- Stable idle and smooth throttle response to reduce stalling and hesitation
- Designed for regular outdoor use; resists corrosion and contamination when maintained
- Matches original throttle and choke linkage positions for easy installation
- Baseline factory settings; final idle and mixture adjustment may be required after fitting
- Helps improve starting behaviour, running consistency and fuel economy
Typical Applications:
Used as a service replacement when engines are hard to start, bog on acceleration, surge at idle or run lean/rich. Suitable for routine maintenance or repairs on domestic and commercial equipment used for grass trimming, brush cutting, edging and light hedgerow work in gardens, estates, parks and landscaping sites.
Also known as:
Stihl FS series carburettor, C1Q-S58A carb, brushcutter carburettor, trimmer carb, carb assembly for Stihl two‐stroke engines, replacement carb for Stihl handheld machines.
Fits Models:
FC 55 DZ, FC55, FC55DZ, FS38, FS45, FS45C, FS45L, FS46, FS46C, FS55, FS55C, FS55R, FS55RC, FS55T, HL45
Alternate Part Numbers:
41401200610
Product Specifications
| L&S Part No. | 4140 120 0610 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41401200610 |
| Unit of Sale | 1 |
| Key Features | - Genuine Stihl part for FS55 and FS55C models - Direct replacement for OEM 4140 120 0610 - Die-cast aluminium body with fuel-resistant diaphragms - Matches original linkage points for easy installation - Improves starting, running consistency, and fuel economy |
| Fits Models | FS38, FS45, FS46 | FS55, FS55C, FS55R | FC 55 DZ | HL45 |
