Top view diagram
Part #317739-303
Gas section diagram
Part #HH18HA454
Blower assy diagram
Part #AA06BS228
Part #HK660003
The manufacturer no longer makes this part, and there's no substitute part
Inside view diagram
Part #HK02ZB022
Burner assy diagram
Part #50DK407029
Front view/rear view diagram
Part #48GS500302
Burner assy diagram
Part #48GS400192
Front view/rear view diagram
Part #48GS660005
Blower assy diagram
Part #48GS500242