It's a capacitor. Page 54 of the manual. Bell Assembly (p/n C-8461-1) shows item number 14 is 5043-09072-00 = Capacitor, 0.1ufd, 500V.
https://www.greatplainselectronics.com/proddetail.asp?prod=CCD-0.1uF-500V-P5
The one installed (in the photo) doesn't look like the same specification as the manual.