Parts such as the 004 Clutch: O-ring, Boss, Clutch, Washer, Thrust, Clutch Drum are included in the M620 2005 Eu (monster 620) 9151-1402d 004 Clutch parts fiche.
The M620 2005 Eu (monster 620) 9151-1402d 004 Clutch consists of twenty-two pieces with the Primary Driven Gear Comp. being the most expensive.