1+ Fuel filler gaiter  
2+ Paint clearing setscrew  
3+ Spring clip  
4+ Filter  
5+ Fuel filler drain tube  
6+ Hose clip  
7+ Hose clip  
8+ Drain tube grommet  
9+ Hose clip  
10+ Fuel filler cap  

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.