In this schematic the "Plate,clutch Friction (mca)" is used most often.
The Clutch ('80-'81 Kl250-a3/a4) is made up of components including this Clutch Assy which is the most expensive.
The lowest price component in this Clutch ('80-'81 Kl250-a3/a4) parts-list fiche is the Bolt-upset.
