For all owners of on-road or off-road .21 engines, Reds, Picco or OS type (equipped with a 22E-type carburetor), a new sealing ring enabling to perfectly fix the dust cover (boot) onto the carburetor.

Once mounted on the carburetor's dust cover, it helps to keep the bellows in place, thus preventing troublesome air and dust ingress, and making the engine's carburation and maintenance more consistent over time (less air intake and better engine longevity).

1-piece kit.

Inner diameter: 18 mm. Compatible with all engines whose bellows outer diameter ranges between 18.0 and 18.5 mm