Identify the Suburban NT20SEQ furnace by assembly, using model-specific illustrated lists for cabinet, motor, burner and gas system components.
Links appear only where the manufacturer number matches a current NewRVParts listing without a conflicting model. Parts without a confirmed match remain as plain-text references.
1. Cabinet, intake and exhaust fittings
| Reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 1 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 4 | 30785PW | 1 | 030785PW, CABINET FRONT(WHITE) |
| 4 | 30785SG | 1 | 030785SG CABINET FRONT (STD GRAY) |
| 4 | 30785GL | 1 | 030785GL. CABINET FRONT (LIGHT GRAY) |
| 5 | 102396 | 1 | CABINET |
| 6 | 70569 | 1 | BUSHING SNAP |
| 7 | 50712 | 1 | TUBE, INTAKE 5IN LONG (STANDARD) |
| 7.1 | 50711 | 1 | TUBE, INTAKE 2-3/4IN LONG |
| 7.2 | 50708 | 1 | TUBE, INTAKE 7-1/4IN LONG |
| 8 | 260572 | 1 | VENT CAP & EXHAUST TUBE ASSEMBLY |
2. Switches, blower and combustion-air parts
| Reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 9 | 121247 | 1 | SCREW, 2-56 X 5/8 HEX |
| 10 | 62476 | 1 | BRACKET, MICRO SW MOUNTING |
| 11 | 233100 | 1 | MICRO SWITCH ASM USE 525028 |
| 11 | 233352 | 1 | MICRO SWITCH |
| 11 | 525028 | 1 | SERVICE KIT, SAIL SWITCH |
| 12 | 21234BK | 1 | COMBUSTION CHAMBER/SHIELD ASSEMBLY |
| 13 | 121951 | 1 | NUT #2-56 |
| 15 | 70243 | 1 | GROMMET |
| 17 | 233020 | 1 | LIMIT SWITCH USE 233484 |
| 17 | 233484 | 1 | LIMIT SWITCH |
| 20 | 230714 | 1 | SPLICER |
| 22 | 70270 | 1 | BUSHING, SNAP 1/2 IN. |
| 24 | 521099 | 1 | IGNITION CONTROL MODULE |
| 27 | 62392 | 1 | BRACKET, COMBUSTION AIR HOUSING MOUNTING |
| 29 | 70450 | 1 | GASKET, BURNER TUNNEL |
| 32 | 350208 | 1 | WHEEL, COMBURSTION AIR |
| 34 | 391059 | 1 | HOUSING COMBUSTION AIR (REAR) |
| 38 | 391058 | 1 | HOUSING COMBUSTION AIR (FRONT) |
| 39 | 121928 | 10 | SCREW 6-19 X 1/2 PH PH |
| 41 | 521068 | 1 | MOTOR |
| 42 | 350207 | 1 | IMPELLER, ROOM AIR |
| 43 | 63447 | 1 | BRACKET, COMBUSTION AIR HOUSING MOUNTING |
| 63 | 63262 | 1 | BRACKET, SWITCH MOUNTING |
| 64 | 232351 | 1 | ON/OFF SWITCH |
| NS | 2612A | 1 | FURNACE CORE REPLACEMENT RP-16NEQ |
3. Burner, gas valve and ignition components
| Reference | Manufacturer part number | Quantity | Component details |
|---|---|---|---|
| 45 | 231931 | 1 | ELECTRODE (SINGLE PROBE) |
| 45 | 525033 | 1 | SERVICE KIT, ELECTRODE |
| 46 | 70163 | 1 | GASKET, ELECTRODE USE 071076 |
| 50 | 10978 | 1 | BURNER ASM. W/ACCESS DOOR |
| 51 | 70398 | 1 | GASKET, BURNER ACCESS DOOR USE 071076 |
| 54 | 170374 | 1 | GAS FITTING, 90° ELBOW |
| 54 | 525025 | 1 | SERVICE KIT, FITTING BRASS 3/8 90 DEG ELBOW |
| 55 | 161123 | 1 | GAS VALVE 3/8 X 1/8 |
| 56 | 63531 | 2 | BRACKET, MANIFOLD MOUNTING (2REQ) |
| 58 | 171786 | 1 | MANIFOLD ASSEMBLY |
| 60 | 180231 | 1 | ORIFICE, MAIN BURNER |
| 61 | 70449 | 1 | GASKET, MANIFOLD PIPE |
Replacement parts shown in the diagrams
These products have matching manufacturer part numbers in the reference tables above. Confirm the furnace model, serial range and product details before ordering; check each listing for current availability.
Ref 1 · MPN 161154
Suburban 161154 White Heat-Only Mechanical RV Furnace Thermostat
View product and availability
Ref 8 · MPN 260572
Suburban 260572 Furnace Vent with Rain Shield, Exhaust Tube with Cap
View product and availability
Ref 24 · MPN 521099
Suburban 521099 12V Furnace Fan-Control Ignition Module
View product and availability
Ref 34 · MPN 391059
Suburban 391059 Rear Furnace Combustion Air Housing NT16SEQ, NT16SQ, NT20SEQ & NT20SQ
View product and availability
Ref 41 · MPN 521068
Suburban 521068 Furnace Motor for NT16SEQ & NT20SEQ
View product and availability
Ref 64 · MPN 232351
Suburban 232351 Furnace On/Off Switch | Select SF, SH & NT
View product and availability
Ref NS · MPN 2612A
Suburban 2612A Furnace Core, , 16,000 BTU, for NT-16SEQ / NT-20SEQ
View product and availability
Ref 45 · MPN 525033
Suburban 525033 NT-Series Furnace Single-Probe Igniter
View product and availability
Ref 55 · MPN 161123
Suburban 161123 12V Gas Valve | Selected NT/VT Furnaces
View product and availability