Some items from this specific schematic: Wash.o-ring Kit,b, O-ring 11x2.4, O-ring 18x3, O-ring,13.8x2.5.
With a quantity of four pieces, the O-ring 11x2.4 is the most used part in the GASKET KIT B diagram.
The Gasket Kit B assembly is constructed from several parts from which the Wash.o-ring Kit,b is the most expensive.