The most expensive part in this assembly is the Shaft,counter(nt:15).
With two applications this O Ring(d:1.9,id:19.8) is the most specified part.
A sample from the products for the Transmission (model K4/k5/k6) include: Shaft,counter(nt:15), Shim(25x34x1), Gear,2nd Driven(nt:25), Joint Set,chain.