Replacement air filter for all years Subaru Robin engines EX27 EX30 using part number 279-32612-08 or 0140-4099. Filter measures 4 1/2" x 6 7/8" x 3/4" (113mm x 173mm x 20mm) Filter is shipped un-oiled; add 1-2 cap fulls of oil to the filter and squeeze/work it for a minute in the supplied bag, then install.Product Description