Find the Suburban SF-25F component reference by starting with the cabinet illustration, continuing to the burner and gas train, and then checking the vent and blower section. Use the reference key in each table to follow a numbered callout back to its illustrated component.
Select a linked part number to view its details and availability. Match the furnace model and serial-number range before ordering.
1. Cabinet, thermostat and duct layout
| Reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 1 | 101242 | 1 | CABINET, FRONT, 3 - HOLE |
| 2 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 5 | 101889 | 1 | CABINET ASM |
| 6 | 50733 | 1 | COVER, DUCT |
| 7 | 50715 | 1 | DUCT COLLAR, 4 IN. |
2. Burner, manifold and electrode references
| Reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 8 | 122694 | 1 | NUT |
| 9 | 171596 | 1 | MANIFOLD ASSY |
| 10 | 120158 | 1 | SCREW, #8 X 3/8 |
| 11 | 180306 | 1 | ORIFICE, #53 |
| 12 | 70811 | 1 | GASKET, BURNER ACCESS |
| 12 | 525010 | 1 | SERVICE. KIT, GASKET, BURNER, ACCESS COVER |
| 12 | 71263 | 1 | GASKET, BURNER ACCESS COVER - Above Serial# 094101431 |
| 12 | 525031 | 1 | SERVICE KIT, GASKET BURNER ACCESS COVER - Above Serial# 094101431 |
| 13 | 121704 | 1 | PLATE, TINNERMAN |
| 14 | 63198 | 1 | PLATE, SECONDARY (BACK) |
| 15 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 16 | 62933 | 1 | PLATE, SECONDARY AIR (FRONT) |
| 17 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 18 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 19 | 62935 | 1 | PLATE, SECONDARY AIR, BOTTOM |
| 20 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 21 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 22 | 232286 | 1 | ELECTRODE, SINGLE PROBE W/ WIRE (L SHAPE) - Above Serial No 934701426 Ending Serial No 171416095 |
| 22 | 525009 | 1 | SERVICE KIT, ELECTRODE W/GROMMET (L SHAPE) - Above Serial No 934701426 Ending Serial No 171416095 |
| 22 | 233306 | 1 | ELECTRODE & WIRE ASSY (STRAIGHT) - Above Serial No 171416095 |
| 22 | 525051 | 1 | SERVICE KIT ELECTRODE, STRAIGHT - Above Serial No 171416095 |
| 23 | 10762 | 1 | BURNER ASSEMBLY |
| 24 | 70963 | 1 | GROMMET |
| 25 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 26 | 161122 | 1 | GAS VALVE, 3/8 INLET NPT X 3/8 INVERTED OUTLET - Above Serial# 971303163 |
| 26 | 161133 | 1 | GAS VALVE, 3/8 INLET NPT X 3/8 INVERTED OUTLET - Below Serial# 921403846 |
| NS | 521074 | 1 | SOLENOID KIT FOR WHITE RODGERS VALVES |
| NS | 521075 | 1 | SOLENOID KIT FOR SEVEN UNIVERSE VALVES |
| 27 | 171574 | 1 | PIPE ASSEMBLY,GAS INLET |
| 28 | 121857 | 1 | SCREW #8-18 X 1/2 |
| 29 | 170374 | 1 | GAS FITTING, 90° ELBOW |
| 29 | 525025 | 1 | SERVICE KIT, FITTING BRASS 3/8 90 DEG ELBOW |
3. Vent, blower and ignition assemblies
| Reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 30 | 121853 | 1 | SCREW, #10 X 3/4 |
| 31 | 260231 | 1 | VENT CAP & EXHAUST TUBE ASSY |
| 32 | 51248 | 1 | VENT TUBE, INTAKE USE 51446 |
| 32 | 51446 | 1 | VENT TUBE, INTAKE |
| 33 | 121857 | 1 | SCREW #8-18 X 1/2 |
| 34 | 390852 | 1 | COMBUSTION AIR HOUSING (FRONT) |
| 35 | 121929 | 1 | SCREW, #8 - 18 X 2 1/4 |
| 36 | 121928 | 1 | SCREW 6-19 X 1/2 PH PH |
| 37 | 390848 | 1 | COMBUSTION AIR HOUSING (REAR) |
| 37 | 390849 | 1 | COMBUSTION AIR HOUSING (REAR) |
| 38 | 350122 | 1 | COMBUSTION AIR WHEEL USE 350184 |
| 38 | 350184 | 1 | WHEEL, COMBUSTION AIR |
| 39 | 71084 | 1 | GASKET, FIREWALL COMBUSTION AIR |
| 40 | 231706 | 1 | MOTOR ASSM 2 1/2 IN DIAMETER USE 233101 - BELOW SERIAL NUMBER: 012106952 |
| 40 | 232682 | 1 | MOTOR ASSY, 3 IN DIAM W/GASKET - ABOVE SERIAL NUMBER: 012106952 |
| 40 | 233101 | 1 | MOTOR ASSY, 2 1/2 IN DIAM - BELOW SERIAL NUMBER: 012106952 |
| 41 | 121945 | 1 | SCREW # 4-20 X 5/8 |
| 42 | 390872 | 1 | HOUSING, BLOWER FRONT HALF |
| 43 | 121857 | 1 | SCREW #8-18 X 1/2 |
| 44 | 390851 | 1 | HOUSING, BLOWER REAR HALF |
| 45 | 230509 | 1 | MICRO SWITCH & PADDLE USE 233356 - Below Serial# 924201894 |
| 45 | 233356 | 1 | MICRO SWITCH & PADDLE - Below Serial# 924201894 |
| 45 | 525024 | 1 | SERVICE KIT, SAIL SWITCH - Below Serial# 924201894 |
| 45 | 232261 | 1 | SWITCH, SAIL USE 233382 |
| 45 | 233382 | 1 | SAIL SWITCH |
| 45 | 525003 | 1 | SERVICE KIT, SAIL SWITCH |
| 46 | 121928 | 1 | SCREW 6-19 X 1/2 PH PH |
| 47 | 121928 | 1 | SCREW 6-19 X 1/2 PH PH |
| 48 | 232351 | 1 | ON/OFF SWITCH |
| 49 | 63446 | 1 | BRACKET, ON/OFF SWITCH |
| 50 | 520820 | 1 | MODULE BOARD, WAS SUPERCEEDED USE 521099 |
| 50 | 521099 | 1 | IGNITION CONTROL MODULE |
| 51 | 70973 | 1 | INSULATOR CAP, MODULE BOARD COIL |
| 52 | 350123 | 1 | BLOWER ROOM AIR WHEELUSE 350129 |
| 52 | 350129 | 1 | BLOWER WHEEL |
| 53 | 121857 | 1 | SCREW #8-18 X 1/2 |
| 54 | 231809 | 1 | BUSHING, STRAIN RELIEF |
| 55 | 121857 | 1 | SCREW #8-18 X 1/2 |
| 56 | 231809 | 1 | BUSHING, STRAIN RELIEF |
| 57 | 70808 | 1 | GASKET, FIREWALL CHAMBER |
| 58 | 21149BK | 1 | CHAMBER ASSY FINAL |
| 59 | 232504 | 1 | SWITCH, LIMIT USE 233532 - S# 921403896 & ABOVE |
| 59 | 233532 | 1 | SWITCH, LIMIT 160 DEGREE |
| 59 | 525006 | 1 | SERVICE KIT, LIMT SWITCH 160OPEN/120 CLOSED |
| 59 | 231630 | 1 | LIMIT SWITCH 175 DEGREE - S# 921403895 & BELOW |
| 60 | 120158 | 1 | SCREW, #8 X 3/8 |
| 61 | 120158 | 1 | SCREW, #8 X 3/8 |
| 62 | 110747 | 1 | SUBURBAN FIREWALL |
| NS | 2608A | 1 | FURNACE CORE REPLACEMENT RP-30FQ |
Replacement parts for this furnace
Shop components listed for the Suburban SF-25F. Each photo opens the corresponding product. Use the diagrams and serial ranges below to choose the correct version.
Ignition and control parts
Airflow and housing components
Burner, vent and duct parts
