1+ Oil sump  
2+ Oil sump gasket  
3+ Filter  
4+ Bolt  
5+ Shoulder bolt  
6+ Spacer  
7+ Oil pick up tube  
8+ Gearbox gasket and seal kit  
9+ Screw  

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.