Part #878122
Replaced by #40A15
Magnetron and air flow diagram
Part #878016
The manufacturer no longer makes this part, and there's no substitute part
Backguard diagram
Part #878191
Replaced by #WP8203546
Manifold diagram
Part #878121
Oven diagram
Part #878092
Replaced by #WPW10208653
Oven diagram
Part #878093
Replaced by #WPW10208653
Oven door and broiler diagram
Part #878089
Replaced by #WPW10208653
Microwave door diagram
Part #878909
Replaced by #WP98392
Microwave door diagram
Part #878930
The manufacturer no longer makes this part, and there's no substitute part
Oven diagram
Part #878088
The manufacturer no longer makes this part, and there's no substitute part