Description
Overview:
The Carburettor C1Q‐S54A is a genuine Stihl OEM carburettor designed for the Stihl HS45 hedge trimmer. Built with a durable die‐cast alloy body and precision internal components, it meters and mixes air and fuel to keep the engine starting reliably, idling smoothly, and running at full power under load. As a direct Stihl replacement, it restores correct fuelling characteristics and helps reduce issues such as hard starting, poor throttle response, or stalling. Suitable for professional grounds care and home garden use alike, this unit is made for the HS45 and maintains the original performance and emissions characteristics of the machine without modification.
Key Features:
- Genuine Stihl part for assured fit and compatibility on HS45
- OEM-quality materials for long service life in tough conditions
- Diaphragm-type design maintains fuel delivery in varied working positions
- Stable idle and reliable acceleration for smoother trimming
- Direct-fit replacement to minimise downtime and setup effort
- Compatible with existing throttle and choke linkages on the HS45
- Supports correct tuning to factory specifications
Typical Applications:
Replacement carburettor for restoring performance on Stihl HS45 hedge trimmers used in garden maintenance, landscaping, estates, and commercial grounds work. Ideal when the original unit is worn, contaminated, or beyond economical repair, or when symptoms include flooding, surging, flat spots, or difficult hot or cold starts.
Also known as:
C1Q‐S54A carb, HS45 carb assembly, Stihl hedge trimmer carburettor, OEM carburettor for HS45, Stihl 4228‐120‐0601 carb, fuel mixer assembly for HS45.
Fits Models:
HS45
Alternate Part Numbers:
4228 120 0601, 42281200601
Product Specifications
| L&S Part No. | 4228 120 0601 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42281200601 |
| Unit of Sale | 1 |
| Machine Type | Hedgetrimmers |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures fit for HS45 hedge trimmer - Die-cast alloy body for durability - Diaphragm-type design for consistent fuel delivery - Direct-fit replacement reduces setup time - Compatible with HS45 throttle and choke linkages |
| Fits Models | HS45 |


