The component with the lowest price in the GASKET KIT (2) schematic is the Washer,plug Drain 14.
The Gasket Kit (2) is made up of components including this Gasket Kit,b (nas) which is the most expensive.
Some items from this specific schematic: O-ring 32.95x2.62, Washer Sealing 8, O-ring,14.7x3.7, O-ring,35.3x2.4.