
Suburban SFV20Q Furnace Illustrated Parts Reference & Diagrams
The SFV20Q service illustration separates the front cabinet and duct assembly from the exhaust and airflow system and the burner section. Its parts references belong to this specific model; confirm both the model and production serial before selecting a part.
How to use this reference: Every number is an illustrated original reference, not a guaranteed replacement. Direct links appear only where the exact manufacturer number has an active matching NewRVParts listing. Compare the serial number and all configuration notes before ordering.
SFV20Q Cabinet and air duct components

| Ref. | Mfg number | Qty | Original description |
|---|---|---|---|
| 1A | 102316 | 1 | CABINET FRONT ASSEMBLY 2-HOLE |
| 2 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 3 | 71195 | 1 | GASKET, BOTTOM DUCT |
| 5 | 102328 | 1 | CABINET ASSEMBLY |
| 5B | 63516 | 1 | BRACKET, CABINET MOUNTING |
| 5C | 63514 | 1 | BRACKET, REAR VERTICAL MOUNTING |
| 6 | 50733 | 1 | COVER, DUCT |
| 7 | 50715 | 1 | DUCT COLLAR, 4 IN. |
SFV20Q Blower, exhaust and electrical components

| Ref. | Mfg number | Qty | Original description |
|---|---|---|---|
| 31 | 260231 | 1 | VENT CAP & EXHAUST TUBE ASSY |
| 32 | 51248 | 1 | VENT TUBE, INTAKE USE 51446 (REAR GAS MODELS ONLY) |
| 32 | 51249 | 1 | VENT TUBE ASSEMBLY INTAKE (FRONT GAS MODELS ONLY) |
| 33 | 280582 | 1 | RAIN SHIELD |
| 34 | 390852 | 1 | COMBUSTION AIR HOUSING (FRONT) |
| 38 | 350211 | 1 | COMBUSTION AIR WHEEL |
| 40 | 233004 | 1 | MOTOR ASSEMBLY W/GASKET |
| 42 | 391039 | 1 | BLOWER ASSY, ROOM AIR, FRONT |
| 44 | 391035 | 1 | BLOWER HOUSING, ROOM AIR, REAR |
| 45 | 232261 | 1 | SWITCH, SAIL USE 233382 |
| 45 | 233382 | 1 | SAIL SWITCH |
| 45 | 525003 | 1 | SERVICE KIT, SAIL SWITCH |
| 48 | 232351 | 1 | ON/OFF SWITCH |
| 50 | 521099 | 1 | IGNITION CONTROL MODULE |
| 52 | 350206 | 1 | WHEEL, ROOM AIR |
| 58 | 21228BK | 1 | CHAMBER ASSEMBLY FINAL |
| 59 | 232888 | 1 | LIMIT SWITCH 225 DEGREE |
| 62 | 110795 | 1 | FIREWALL |
SFV20Q Burner and gas-system components

| Ref. | Mfg number | Qty | Original description |
|---|---|---|---|
| 9 | 171743 | 1 | MANIFOLD ASSY, COMPLETE |
| 11 | 180305 | 1 | ORIFICE #55 METRIC THREADS |
| 12 | 71263 | 1 | GASKET, BURNER ACCESS COVER |
| 12 | 525031 | 1 | SERVICE KIT, GASKET BURNER ACCESS COVER |
| 22 | 232286 | 1 | ELECTRODE, SINGLE PROBE W/ WIRE (L SHAPE) |
| 22 | 525009 | 1 | SERVICE KIT, ELECTRODE W/GROMMET |
| 22 | 233306 | 1 | ELECTRODE & WIRE ASSY (STRAIGHT) |
| 23 | 10767 | 1 | BURNER ASSEMBLY |
| 26 | 161122 | 1 | GAS VALVE, 3/8 INLET NPT X 3/8 INVERTED OUTLET |
| 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 (REAR GAS MODELS ONLY) |
| 27 | 171576 | 1 | PIPE ASSY, GAS INLET (FRONT GAS MODELS ONLY) |
| 29A | 170374 | 1 | GAS FITTING, 90° ELBOW (FRONT GAS MODELS ONLY) |
| 29A | 525025 | 1 | SERVICE KIT, FITTING BRASS 3/8 90 DEG ELBOW (FRONT GAS MODELS ONLY) |
Matching parts and product images
These NewRVParts product listings correspond to manufacturer part numbers referenced in the diagrams above. Confirm the complete appliance model, serial-number range and original part number before ordering. Listing images may include manufacturer logos.











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