1+ Crankshaft  
2+ Woodruff key  
3+ Crankshaft damper  
4+ Damper bolt  
5+ Crankshaft thrust washer  
6+ Dowel  
7+ Crankshaft oil seal  
8+ Crankshaft oil seal  
9+ Crankshaft main bearing  
10+ Crankshaft main bearing  
11+ Sealing ring  
12+ Split collet  
13+ Crankshaft  

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.