0+ (Unillustrated Parts)  
1+ Solenoid valve  
2+ Breather hose  
3+ Hose band  
4+ T-piece  
5+ Elbow  
6+ Vacuum valve bracket  
7+ Setscrew  

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.