1+ Mounting plate  
2+ Timer relay  
3+ Relay  
4+ Relay  
5+ Bulb check module  
6+ Flasher unit  
7+ Relay  
8+ Reverse inhibit relay  
9+ Delay timer  
10+ Over voltage indicator unit  
11+ Setscrew  
12+ Shakeproof washer  

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.