O.S. Engine OS73300812 Triple 8mm Intake Dust Caps (3 pcs) — Air Filter Maintenance Part  [OS73300812]

Triple 8mm Intake Covers

This O.S. Engine OS73300812 accessory is supplied as a trio of dust caps for R/C engine intake and filter interfaces. They help limit debris ingress at 8mm diameter openings commonly used on model engines, serving basic protection needs during handling and storage.

Confirm that the target spigot or shaft is 8mm before fitting; these caps are not universal. To fit, press each cap over the intake or filter spigot until it seats fully, then verify the fit. Remove caps prior to engine start; no special tools are normally required.

In workshop routines, these caps are handy for keeping mating surfaces tidy during transport, tuning sessions, and filter maintenance. They are intended as expendable protective items for repeated pre-run checks and short-term protection.