Description
Overview:
This Air Intake Gasket is a Genuine Stihl replacement part for petrol cut-off saws, engineered to seal the intake path and maintain correct air-fuel metering. Made from a durable, fuel- and heat‐resistant gasket material, it sits between mating intake components to prevent unmetered air leaks that can cause poor running and accelerated wear. It is specified for Stihl TS 400 and TS 460 machines and matches OEM reference 4221 129 0903 for an accurate fit. A sound intake seal helps preserve starting, idle stability, throttle response, and overall cutting performance, especially in dusty environments common on building and landscaping sites. Use it when rebuilding, servicing, or troubleshooting air leaks around the intake assembly to restore reliable operation.
Key Features:
- Genuine Stihl part for assured compatibility and fit
- OEM reference 4221 129 0903 for straightforward identification
- Seals the intake joint to prevent air leaks and loss of performance
- Robust, fuel- and heat‐resistant construction for long service life
- Helps protect the engine by reducing ingress of abrasive dust through leaks
- Supports stable idle, clean acceleration, and consistent power under load
- Direct replacement for worn, damaged, or flattened intake gaskets
- Simple to install during routine maintenance or rebuilds with standard tools
Typical Applications:
Used during carburettor or intake refits, engine overhauls, and leak diagnostics on site saws. Suitable for workshop servicing, hire fleet maintenance, and DIY repairs where restoring a tight intake seal is essential for reliable starting, clean running, and engine protection in concrete, masonry, and metal cutting tasks.
Also known as:
Intake manifold gasket, carburettor intake gasket, air inlet gasket, carb to cylinder gasket, air boot seal, intake sealing gasket, manifold seal.
Fits Models:
TS 400, TS 460, TS400, TS460
Alternate Part Numbers:
4221-129-0903, 42211290903, 4221 129 0901, 42211290901
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