In this schematic the "Seal,valve Stem" is used most often.
Parts such as the Gasket Kit A: Gasket,ex.pipe (nas), Washer,oil Bolt, O-ring,35.3x2.4, Gasket,cylinder (mca) are included in the Vt1100c Shadow 1100 1989 (k) Usa California Gasket Kit A parts fiche.
The Wash,sealing,7mm is the cheapest item from this partsfiche.