Includes head shell, domes, aluminum head washers, and orings. Head shell is clear anodized for protection against corrosion. This head is completely sealed by orings, no head gasket required.
For reference, the stock head is equivalent to 46cc domes.
For '99 models with stock carbs, you need to check your serial# for the correct ignitor. If the serial# is KAW44000 or lower then you need the 44cc dome for premium pump gas. If the serial# is KAW44001 or higher then you can use the 42cc domes for premium pump gas.