0+ (Unillustrated Parts)  
1+ Snap ring  
2+ Centering plate  
3+ O-ring  
4+ O-ring  
5+ Piston  
6+ Cup spring  
7+ Stop ring  
8+ Clutch disc  
9+ Clutch disc  
10+ End clutch disc  
11+ Free wheel  
12+ Piston  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.