Description
Overview:
The Carburettor C1Q-S118C is a genuine Stihl replacement for the fuel system on selected cut-off saws. Built around a robust die-cast aluminium body with durable seals and diaphragms, it meters the correct air-fuel mixture to keep a two‐stroke engine running cleanly and reliably. This OEM unit is engineered for a precise fit on Stihl TS410 and TS420 disc cutters, restoring performance when the original carb has worn, clogged or been damaged. As an authentic Stihl part (OEM reference 4238 120 0603 / 42381200603), it supports smooth starting, steady idling, and strong throttle response under load. It is a practical choice for routine maintenance or a direct replacement to help protect engine health and extend machine service life in tough site conditions.
Key Features:
- Genuine Stihl part for assured compatibility and build quality
- Direct replacement for C1Q-S118C (OEM 4238 120 0603) to restore correct fueling
- Durable metal-bodied construction for long service in dusty, high-vibration use
- Accurate metering helps cold starting, clean acceleration, and stable idle
- Supports efficient combustion to maintain power and reduce bogging under load
- Seamless fit on specified models for straightforward installation and setup
- Suitable for standard two-stroke petrol/oil mixes used in cut-off saws
- Helps prevent lean running that can lead to overheating and premature wear
Typical Applications:
Ideal for maintaining the performance of Stihl cut-off saws used for cutting concrete, masonry, asphalt, paving slabs, and steel on construction sites, utilities work, road and rail maintenance, landscaping, and hire fleets. A sound carburettor is essential for reliable daily starting, consistent power through long cuts, and dependable running in dusty, demanding environments.
Also known as:
Carb, carburetor (US), fuel metering unit, mixer, C1Q S118C pattern designation, replacement carb assembly for Stihl cut-off saws. Commonly referenced when troubleshooting poor starting, erratic idle, hesitation on acceleration, or when rebuilding the fuel system during scheduled servicing.
Fits Models:
TS 410, TS 410 A, TS 420, TS 420 A, TS410, TS410A, TS420, TS420A
Alternate Part Numbers:
4238-120-0603, 4238 120 0600, 42381200603, 42381200600, C1Q-S118C, C1QS118C, 4238/03, 423803
Product Specifications
| L&S Part No. | 4238 120 0603 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42381200603 |
| Unit of Sale | 1 |
| Applications | TS 410, TS 410 A, TS 420, TS 420 A, TS410, TS410A, TS420, TS420A |
| Machine Type | Disc Cutters |
| Fits Brands | Stihl |
| Fits Models | TS410, TS420 |
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