This is the genuine Stihl air-filter kit you need to keep Cut-Off saws running strong. It’s the OEM replacement made for Stihl TS series saws so the engine breathes clean and the motor lasts longer under dust and grit. The kit includes the main air filter plus the pre-filter to trap heavy dust before it hits the paper element, so you get better protection and longer service life.
Fit and swap are simple: this part (4238-140-4404) is built to fit TS410, TS420 and the newer TS480i / TS500i Cutquik saws, so you don’t have to fudge the seal or mess with makeshift filters on the job. Replace the filter on a regular schedule or sooner when you’re cutting concrete all day — a clean filter keeps power, reduces fouled plugs and cuts down on rebuilds. Size and form are made to match the factory spec so the filter seats tight and the saw keeps full airflow without sucking in dirt around the edges. Common aftermarket listings and OEM listings give the same measurements and note that the kit ships with the smaller pre-filter plus the main element, ready to drop in.
If you run dusty, change often; if you run clean jobs, inspect and change before heavy cuts. Buy this kit to stop power loss, protect the carb and head gasket, and save downtime. It’s cheap insurance — a little money for one quick swap keeps the saw cutting at full power and avoids the headache of a clogged carb or seized engine down the line.
