THIS TUNE UP KIT INCLUDES AN AIR AND PRE FILTER, FUEL AND OIL FILTER, AND TWO SPARK PLUGS. THE AIR AND PRE FILTER REPLACE 24 083 03, 2408303, 24 083 03-S, 2408303S, 24 083 03-S1, 24 083 05, GY20576, 21536400,...