Description
Overview:
The Carburettor C1Q-S186D is a genuine Stihl replacement part designed for two-stroke handheld machines such as the FS 55 and FS 55 C brushcutters. Built around a robust die-cast aluminium body with fuel‐resistant diaphragms and seals, it precisely meters the fuel-air mixture to keep your engine starting easily, idling smoothly, and delivering consistent power under load. This OEM unit (OEM No. 4140 120 0619) is engineered to meet Stihl specifications for fit and performance, making it a dependable choice when refurbishing a tired or faulty carburettor. It is suitable for a range of 4140‐series machines listed below, helping restore reliability and efficiency for regular domestic, professional, and grounds maintenance use.
Key Features:
- Genuine Stihl carburettor (C1Q‐S186D), OEM No. 4140 120 0619 for assured compatibility and longevity.
- Durable die‐cast aluminium construction with fuel‐resistant diaphragms and gaskets for dependable service life.
- Accurate fuel-air metering for stable idle, smooth acceleration, and consistent cutting performance.
- Manufactured to OEM standards for correct fitment and linkage alignment on compatible models.
- Helps restore easy starting and reduces hesitation or stalling compared with worn units.
- Straightforward replacement using existing mounting screws, fuel lines, and throttle/choke linkages.
- Suitable for everyday use in grass trimming, brushcutting, edging, and general grounds maintenance.
- Replaces earlier/superseded Stihl references where listed, including 4140 120 0616.
Typical Applications:
Used to replace worn or faulty carburettors on compatible Stihl brushcutters, trimmers, hedge trimmers, edgers, and Kombi engines. Ideal for restoring reliable starting, steady idle, and consistent power during grass trimming, light scrub clearing, edging, and routine property or site maintenance.
Also known as:
Carb, carburetor (US), diaphragm carburettor, fuel mixer, carb assembly, C1Q series carb, replacement carb unit for Stihl 4140‐series machines.
Fits Models:
FS 38, FS 45, FS 45 C, FS 45 L, FS 46, FS 46 C, FS 55, FS 55 C, FS 55 R, FS 55 RC, FS 55 T, HL 45, KM 55, KM 55 C, KM 55 R, KM 55 RC, FC 55, FC 55 DZ
Alternate Part Numbers:
4140 120 0616, 4140-120-0619, 41401200619, 41401200616
Product Specifications
| L&S Part No. | 4140 120 0619 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41401200634 |
| Unit of Sale | 1 |
| Applications | FC 55, FC 55 DZ, FC55, FC55DZ, FS 38, FS 45, FS 45 C, FS 45 L, FS 46, FS 46 C, FS 55, FS 55 C, FS 55 R, FS 55 RC, FS 55 T, FS38, FS45, FS45C, FS45L, FS46, FS46C, FS55, FS55C, FS55R, FS55RC, FS55T, HL 45, HL45, KM 55, KM 55 C, KM 55 R, KM 55 RC, KM55, KM55C, KM55R, KM55RC |
| Machine Type | Brushcutters |
| Fits Brands | Stihl |
| Fits Models | FS38, FS45, FS46 | FS55, FS55C, FS55R | KM55, KM55C, KM55R, KM55RC | FC 55 DZ | HL45 |
