Does anyone know what the part number is for the AFC housing o-ring or gasket?? Also, is there a different parts source other than Cummins? (There isn't a cummins within a hundred miles of me... !!!) Perhaps Case?? Mine has leaked since I removed it to install the fuel plate. Also, Can someone explain how I remove the fuel heater assembly? I removed the bowl from the bottom to clean it out and couldn't get the heater assembly out. I think that is where my air leak (causing the hard start problem) is. It actually got worse after pulling the bowl, cleaning it, and replacing the lower rubber gasket. This hard to start problem is getting annoying!!! :{