Description
Overview:
The Fuel Tank Vent 4223 350 5803 is a Genuine Stihl part designed to keep your cut-off saw running reliably by balancing pressure in the fuel tank. Made from fuel‐resistant plastic with an internal breather valve, it allows air into the tank while helping to prevent pressure build-up that can interrupt fuel delivery. This supports smooth, consistent fuel flow to the carburettor, reducing stalling and hard starting. Purpose-built for Stihl disc cutters such as the TS400 and TS410, it integrates neatly in the standard vent port without modification. Suitable for professional and domestic users who need dependable performance from petrol two-stroke equipment, this vent is a simple, effective service item that helps protect engine performance over time.
Key Features:
- Genuine Stihl part for assured fit and function (MPN: 4223 350 5803)
- Helps prevent tank pressure build-up and vacuum lock for consistent fuel flow
- Fuel‐resistant construction for durability with petrol/2‐stroke mix
- Simple to install during routine maintenance with basic tools
- Stable running and easier restarts by maintaining correct tank ventilation
- Compact, lightweight form factor that fits the original vent location
- Suitable for regular, heavy-duty site use on masonry and metal cutting tasks
- Supports long service life of carburettor and fuel system components
- Compatible with a range of Stihl cut-off saw models for fleet consistency
Typical Applications:
Used on Stihl cut-off saws operating in construction, roadworks, utilities, landscaping, and hire fleets. Helps maintain smooth fuel delivery during prolonged cutting of concrete, stone, asphalt, and metal on site, in workshops, and in maintenance depots where reliable performance and quick servicing are important.
Also known as:
Fuel tank breather valve, tank ventilation valve, breather check valve, fuel tank vent plug, one-way tank vent, pressure equalisation valve for fuel systems.
Fits Models:
TS400, TS410, TS420, TS460, TS700, TS800
Alternate Part Numbers:
4223-350-5803, 42233505803, 4238 350 5800, 42383505800
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