CONFIRM THE PART FITS
Part Information
This secondary heat exchanger (part number 4021309S) is for furnaces.
Secondary heat exchanger 4021309S extracts additional heat from exhaust gases, and condenses the exhaust gases into water and carbon dioxide.
Disconnect electrical power and shut off the gas supply before installing this part. Wear work gloves to protect your hands.
Top models using the same part
| Model Name | Model Number | Diagram Name |
|---|---|---|
| Model #GMT090-4B Goodman furnace | GMT090-4B | Heat exchanger assembly |
| Model #GMTH070-4B Goodman furnace | GMTH070-4B | Heat exchanger assembly |
| Model #GMTH045-3B Goodman furnace | GMTH045-3B | Heat exchanger assembly |
| Model #GMT115-5B Goodman furnace | GMT115-5B | Heat exchanger assembly |
| Model #GDT115-5B Goodman furnace | GDT115-5B | Heat exchanger assembly |
| Model #GMT070-4B Goodman furnace | GMT070-4B | Heat exchanger assembly |
| Model #GMT070-3B Goodman furnace | GMT070-3B | Heat exchanger assembly |
| Model #GMNT120-5B Goodman furnace | GMNT120-5B | Heat exchanger assembly |
| Model #GMT140-5B Goodman furnace | GMT140-5B | Heat exchanger assembly |
| Model #GMNT100-4B Goodman furnace | GMNT100-4B | Heat exchanger assembly |