1+ Oil filler cap  
2+ O-ring  
3+ Oil filler pipe  
4+ Support bracket  
5+ Setscrew  
6+ Bush  
7+ Filler tube housing  
8+ Washer faced setscrew  
9+ Baffle plate  
10+ Hose  
11+ Worm drive hose clip  
12+ Oil drain pipe  
13+ Nut  
14+ Olive  

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.