Gas burners and manifold diagram
Part #612919
The manufacturer no longer makes this part, and there's no substitute part
Vent system diagram
Part #609537
Blower assembly diagram
Part #604006
Replaced by #1012514
Heat exchanger diagram
Part #504096
Heat exchanger diagram
Part #610411
Heat exchanger diagram
Part #610286
Furnace body diagram
Part #607900
Vent system diagram
Part #606943
Part #613577
Heat exchanger diagram
Part #608151