Air Foam Filter for Kosa Spalinowa TOP191S (fits models 3–4) — No name YTOP1903

Air Foam Filter for Kosa Spalinowa TOP191S (fits models 3–4) is a replacement foam air intake element designed to protect small petrol engines used in brushcutters and trimmers. The foam media traps dust, grass particles and other debris before they reach the carburetor and combustion chamber, helping to maintain proper air flow and combustion efficiency. This filter is intended for routine maintenance and quick swaps during seasonal servicing of Kosa Spalinowa TOP191S units compatible with the 3–4 model range.

Advantages

The foam construction provides effective filtration while allowing sufficient air flow for two-stroke and four-stroke small engines. Its flexible material fits into the original airbox housing, making installation straightforward without modifications. By capturing contaminants early, the filter helps reduce wear on engine components and supports consistent engine performance between full services.

Suitable for

• Routine maintenance of Kosa Spalinowa TOP191S models listed as 3–4
• Replacement of worn or clogged foam air elements in petrol brushcutters and trimmers
• Field swaps during seasonal servicing to restore engine breathing

Key specifications

• Filter type: foam air intake element
• Compatibility: designed for Kosa Spalinowa TOP191S models indicated as 3–4
• Function: captures dust, grass and debris to protect carburetor and engine
• Material: flexible open-cell foam for balance of filtration and airflow
• Installation: press-fit into original airbox with no special tools required

How to use

Turn off the engine and allow it to cool before attempting any maintenance. Open the airbox cover according to the machine’s service instructions, remove the old or damaged filter, and inspect the airbox for dirt and residue. Fit the foam filter into the housing, ensuring it seats evenly and seals around the intake opening. Replace the airbox cover and secure fasteners before starting the engine. Inspect the filter regularly and replace it when heavily soiled, torn or degraded.

Usage recommendations

For reliable performance, clean the foam filter using mild detergent and warm water if it is only lightly soiled; allow it to dry completely and apply the manufacturer-recommended light film of engine oil if instructed by the brushcutter’s service manual. Replace the filter at specified service intervals or sooner in dusty conditions.