| No. | Notes | MODEL HEATING CAPACITY BLOWER DESIGNATION VARIATION AIRFLOW | RGRA 04 M A E | RGRA 06 M A E | RGRA 07 M A E | RGRA 07 Y B G | RGRA 09 Z A J | RGRA 10 Z A J | RGRA 12 R A J |
| 28 | Stk | Heat Exchanger - See Note 5 | AS-61849-01 | AS-61849-02 | AS-61849-03 | AS-61849-05 | AS-61849-04 | AS-61849-06 | AS-61849-07 |
| 32 | Stk | Burner Tubes - Before F1799 | 75-24001-01 (3) | 75-24001-01 (4) | 75-24001-01 (5) | 75-24001-01 (5) | 75-24001-01 (6) | 75-24001-01 (7) | 75-24001-01 (8) |
| 32 | Stk | Burner Assembly - After F1799 | AS-61984-03 | AS-61984-04 | AS-61984-05 | AS-61984-05 | AS-61984-06 | AS-61984-07 | AS-61984-08 |
| 36 | Stk | Manifold (w/o Orifices) - Before F1799 | AS-61815-01 | AS-61815-02 | AS-61815-03 | AS-61815-03 | AS-61815-04 | AS-61815-05 | AS-61815-06 |
| 36 | Stk | Manifold (w/o Orifices) - F1799 thru F1906 | 81-101150-01 | 81-101150-02 | 81-101150-03 | 81-101150-03 | 81-101150-04 | 81-101150-05 | 81-101150-06 |
| 36 | Stk | Manifold (w/o Orifices) - After F1906 | 81-24395-01 | 81-24395-02 | 81-24395-03 | 81-24395-03 | 81-24395-04 | 81-24395-05 | 81-24395-06 |
| 37 | Burner Orifice - Natural Gas | See Orfice Selection Chart | |||||||
| 37 | Burner Orifice - LP | See Orfice Selection Chart | |||||||
| 40 | Stk | Ignitor - Direct Spark Ignition | 62-24141-04 | 62-24141-04 | 62-24141-04 | 62-24141-04 | 62-24141-04 | 62-24141-04 | 62-24141-04 |
| 43 | Stk | Ignitor - Hot Surface Ignition | 62-22868-02 | 62-22868-02 | 62-22868-02 | 62-22868-02 | 62-22868-02 | 62-22868-02 | 62-22868-02 |
| No. | Notes | MODEL GAS CODE | RGRA DC | RGRA DF | RGRA DG | RGRA DH |
| 21 | Stk | Integrated Furnace Control Board (IFC) | 62-24044-01 | 62-24084-01 | 62-24084-02 | 62-24044-01 |
| 38 | Stk,2 | Gas Valve - Natural Gas | 60-22866-01 | 60-22866-01 | 60-23490-01 | 60-23490-01 |
| 38 | Stk | Gas Valve - LP | See Note 2 | See Note 2 | See Note 2 | See Note 2 |
| 39 | Stk | Flame Sensor | 62-23543-01 | 62-23543-01 | 62-23543-01 | 62-23543-01 |
| Stk | LP Conversion Kit - US | FP-02 | FP-02 | FP-02 | FP-02 | |
| Stk | LP Conversion Kit - Canada | FP-05 | FP-05 | FP-05 | FP-05 | |
| No. | Notes | MODEL GAS CODE | RGRA EH | RGRA EJ | RGRA EK | RGRA EL |
| 21 | Stk | Integrated Furnace Control Board (IFC) | 62-24136-03 | 62-24140-04 | 62-24136-03 | 62-24140-04 |
| 38 | Stk,2 | Gas Valve - Natural Gas | 60-22866-01 | 60-22866-01 | 60-23490-01 | 60-23490-01 |
| 38 | Stk | Gas Valve - LP | See Note 2 | See Note 2 | See Note 2 | See Note 2 |
| 39 | Stk | Flame Sensor | 62-23543-01 | 62-23543-01 | 62-23543-01 | 62-23543-01 |
| Stk | LP Conversion Kit - US | FP-02 | FP-02 | FP-02 | FP-02 | |
| Stk | LP Conversion Kit - Canada | FP-05 | FP-05 | FP-05 | FP-05 | |
| No. | Notes | MODEL GAS CODE | RGRA FY | RGRA FZ | ||
| 21 | Stk | Integrated Furnace Control Board (IFC) | 62-24140-04 | 62-24136-03 | ||
| 38 | Stk,2 | Gas Valve - Natural Gas | 60-100394-02 | 60-100394-01 | ||
| 38 | Stk | Gas Valve - LP | See Note 2 | See Note 2 | ||
| 39 | Stk | Flame Sensor | 62-23543-01 | 62-23543-01 | ||
| Stk | LP Conversion Kit - U.S. Models | FP-02 | FP-02 | |||
| Stk | LP Conversion Kit - Canadian Models | FP-02 | FP-05 |