Some items from this specific schematic: O-ring,13.5x1.4, Gasket,sealed Cov (nas), O Ring Retainer, O-ring,1.5x4.1.
With a quantity of eight pieces, the Seal,valve Stem is the most used part in the GASKET KIT A diagram.
The O-ring 21.9x2.5 is the cheapest item from this partsfiche.