The Suburban SF-30VHQ is a 30,000 BTU ducted furnace requiring an exterior access door. Follow three separate illustrated reference groups for the cabinet, fuel train and electrode, then the motor, blower and exhaust hardware.
Find the component in the numbered diagram, then check its Suburban part number, quantity and serial-number range in the table. Confirm the full model suffix before selecting a replacement.
SF-30VHQ — cabinet and thermostat components
| Drawing reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 1A | 102316 | 1 | CABINET FRONT ASSEMBLY 2-HOLE |
| 2 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 3 | 71195 | 1 | GASKET, BOTTOM DUCT |
| 3 | 521260 | 1 | GASKET, VERICAL BOTTOM (10 PACK) |
| 5 | 103136 | 1 | CABINET ASSEMBLY |
| 5B | 63516 | 1 | BRACKET, CABINET MOUNTING |
| 5C | 63514 | 1 | BRACKET, REAR VERTICAL MOUNTING |
| 6 | 50733 | 2 | COVER, DUCT |
| 7 | 50715 | 2 | DUCT COLLAR, 4 IN. |
SF-30VHQ — burner, gas valve and ignition parts
| Drawing reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 9 | 171743 | 1 | MANIFOLD ASSY, COMPLETE |
| 11 | 180307 | 1 | ORIFICE #52 METRIC THREADS |
| 12 | 71263 | 1 | GASKET, BURNER ACCESS COVER |
| 15 | 121651 | 1 | SCREW 8-18 X 1/2 |
| 19 | 62935 | 1 | PLATE, SECONDARY AIR, BOTTOM |
| 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 | 233497 | 1 | ELECTRODE USE 233306 |
| 22 | 233306 | 1 | ELECTRODE & WIRE ASSY (STRAIGHT) - Above Serial No 171416095 |
| 22 | 525051 | 1 | SERVICE KIT ELECTRODE, STRAIGHT - Above Serial No 171416095 |
| 23 | 10865 | 1 | BURNER ASSEMBLY, COMPLETE |
| 26 | 161122 | 1 | GAS VALVE, 3/8 INLET NPT X 3/8 INVERTED OUTLET |
| 27 | 171574 | 1 | PIPE ASSEMBLY,GAS INLET |
| 27A | 171576 | 1 | PIPE ASSY, GAS INLET |
| 29A | 170374 | 1 | GAS FITTING, 90° ELBOW |
SF-30VHQ — exhaust, motor and blower assemblies
| Drawing reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 31 | 260553 | 1 | VENT CAP AND EXHAUST TUBE ASSEMBLY |
| 32 | 51248 | 1 | VENT TUBE, INTAKE USE 51446 |
| 32 | 51446 | 1 | VENT TUBE, INTAKE |
| 33 | 280582 | 1 | RAIN SHIELD |
| 36 | 122001 | 2 | SCREW, #6-19 X 3/4 |
| 38 | 521235 | 1 | WHEEL, COMBUSTION AIR |
| 39 | 72087 | 1 | GASKET, FIREWALL |
| 40 | 521258 | 1 | MOTOR ASSY W/GASKET |
| 41 | 121971 | 1 | SCREW # 4-24 X 5/8 |
| 42 | 521259 | 1 | BLOWER HOUSING, FRONT HALF |
| 43 | 121857 | 5 | SCREW #8-18 X 1/2 |
| 44 | 521253 | 1 | BLOWER HOUSING, REAR HALF |
| 45 | 232261 | 1 | SWITCH, SAIL USE 233382 |
| 45 | 233382 | 1 | SAIL SWITCH |
| 48 | 232351 | 1 | ON/OFF SWITCH |
| 50 | 521099 | 1 | IGNITION CONTROL MODULE |
| 52 | 521233 | 1 | BLOWER WHEEL, ROOM AIR |
| 54 | 70362 | 1 | BUSHING, SNAP |
| 56 | 71206 | 1 | BUSHING, STRAIN RELIEF |
| 58 | 21373 | 1 | CHAMBER/FIREWALL ASSY, FRONT GAS MODELS |
| 58 | 21374 | 1 | CHAMBER/FIREWALL ASSY, REAR GAS MODELS |
| 59 | 232504 | 1 | SWITCH, LIMIT USE 233532 |
| 59 | 233532 | 1 | SWITCH, LIMIT 160 DEGREE |
Replacement parts shown in the diagrams
These product listings match manufacturer numbers linked in the diagram tables. Confirm the complete furnace model, serial number and applicable component revision before ordering; product listings show current availability.
Ref 2 · MPN 161154
Suburban 161154 White Heat-Only Mechanical RV Furnace Thermostat
View product and availability
Ref 31 · MPN 260553
Suburban 260553 Furnace Exhaust Vent with Rain Shield - SF-Series & SH-Series
View product and availability
Ref 38 · MPN 521235
Suburban 521235 Furnace Combustion Wheel SF-25Q, SF-30Q, SF-35Q, SFVH & SFV
View product and availability
Ref 48 · MPN 232351
Suburban 232351 Furnace On/Off Switch | Select SF, SH & NT
View product and availability
Ref 50 · MPN 521099
Suburban 521099 12V Furnace Fan-Control Ignition Module
View product and availability