Heat exchanger/766020 diagram
Part #91593
Replaced by #12908
Heat exchanger/766020 diagram
Part #600587
Heat exchanger diagram
Part #600586
Part #609227
Furnace body diagram
Part #612254
Part #611872
Heat exchanger diagram
Part #612443
Heat exchanger diagram
Part #1001184
Heat exchanger/766020 diagram
Part #613209
Part #604141
The manufacturer no longer makes this part, and there's no substitute part