The Secondary Drive Gear (model K8/k9) assembly is constructed from several parts from which the Gear Set,secondary is the most expensive.
The O Ring(d:1.7,id:6) is the cheapest item from this partsfiche.
A sample from the products for the Secondary Drive Gear (model K8/k9) include: O Ring(d:2.4,id:23.7), Stopper,sec Driven Bearing, O Ring(d:2.4,id:90.8), Bolt.