Rheem-Ruud AS-58386-92 Heater Element

Will this heater element work on model UBEA 21J15SFCAI serial T M4097 04096

Yes, there are 3 on the unit.  

Will this element fit model number UBHA-21 J20SFHA? It is a Rheem-Ruud electric furnace. It looks like the part but not sure of the part number.

AS-58386-92 is the one for model UBHA21J20SFHA and there are 5 on that unit.

Will this element fit Rheem model RBHA-17J10NFAA

Yes, it does.