Includes ALL gaskets, o-rings and washers to rebuild the whole engine. K&S manufactures the most complete gasket sets on the market with high quality gasket materials from Japan and the US. This 54 piece kit includes the following parts: Cylinder Head Gasket, Cylinder Base Gasket , Crankcase Cover Gasket 1 & 2, Oil Pump Cover Gasket, Camshaft Tensioner Case Part No. 28-610_KS.