The NT34SP furnace uses a four-section illustrated parts breakdown. The sections follow the housing and ducts, ignition and chamber, gas and burner, and blower and combustion-air assemblies. Use the manufacturer part numbers and service notes to identify the installed components.
Use the four illustrations to locate the component, then match its callout to the part number in the table. Select a linked number for product details and check the furnace model and serial range before ordering.
1. Cabinet, ducts and harness
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 1 | 101874 | 1 | CABINET ASM COMPLETE |
| 2 | 121662 | 1 | FASTNER TINNERMAN USE 122060 |
| 3 | 62164 | 1 | BOTTOM DUCT GASKET - * |
| 5 | 101873DG | 1 | CAB FRONT |
| 6 | 50715 | 4 | DUCT COLLAR, 4 IN. |
| 7 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 8 | 520322 | 1 | POWER SUPPLY HARNESS |
| NS | 520323 | 1 | 520323 POWER SUPPLY CNCT USE 232699 |
| NS | 232699 | 1 | WIRE HARNESS, INTERNAL |
2. Electrode, chamber and ignition
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| NS | 520797 | 1 | GASKET KIT |
| 10 | 231933 | 1 | ELECTRODE - Above S# 920500001 |
| 10 | 525029 | 1 | SERVICE KIT, ELECTRODE - Above S# 920500001 |
| 10 | 230956 | 1 | ELECTRODE 3 PRONG - Below S# 920500001 |
| 10 | 525019 | 1 | SERVICE KIT, ELECTRODE - Below S# 920500001 |
| NS | 231261 | 1 | ELECTRODE WIRE |
| 12 | 30764 | 1 | BURNER ACCESS DOOR |
| 13 | 70163 | 1 | GASKET, ELECTRODE USE 071076 |
| 13 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 13 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 13 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 18 | 70398 | 1 | GASKET, BURNER ACCESS DOOR USE 071076 |
| 18 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 18 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 18 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 19 | 20932BK | 1 | COMBUSTION CHAMBER ASSY |
| 21 | 230496 | 1 | LIMIT SWITCH 230 DEGREE |
| 24 | 70362 | 1 | BUSHING, SNAP |
| 25 | 121252 | 2 | SCREW 10 X 3/8 PH PH |
| 26 | 60270 | 1 | WIRE CLAMP |
| 27 | 230714 | 1 | SPLICER |
| 30 | 230218 | 1 | BUSHING SNAP 7/8 IN |
| 31 | 63248 | 1 | BRACKET POWER SUPPLY |
| 32 | 232351 | 1 | ON/OFF SWITCH |
| 34 | 63522 | 1 | SUPPORT BRACKET |
| 35 | 520820 | 1 | MODULE BOARD, WAS SUPERCEEDED USE 521099 |
| 35 | 521099 | 1 | IGNITION CONTROL MODULE |
| 38 | 70807 | 1 | INSULATOR, MODULE BOARD |
| 39 | 90301 | 1 | PANEL, BOARD MOUNTING |
| 42 | 260542 | 1 | VENT CAP USE 260573 |
| 42 | 260573 | 1 | VENT CAP |
| 43 | 50906 | 1 | SUBURBAN INTAKE TUBE 3 IN |
| 46 | 121711 | 1 | SCREW #8X3.25 PH PH 410SS |
| NS | 2613A | 1 | FURNACE CORE REPLACEMENT RP-30N |
3. Burner and manifold
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 48 | 10701 | 1 | BURNER ASSY |
| 49 | 180222 | 1 | ORIFICE #51 |
| 50 | 70408 | 1 | GASKET, MANIFOLD PIPE |
| 51 | 171468 | 1 | MANIFOLD PIPE |
| 53 | 161123 | 1 | GAS VALVE 3/8 X 1/8 |
| 54 | 171434 | 1 | PIPE ASSY, GAS INLET |
| 56 | 71034 | 1 | GASKET, GAS INLET |
| 57 | 171428 | 1 | ELBOW 90 |
| 58 | 70534 | 1 | GASKET DISC COVER |
| 59 | 62408 | 1 | DISC COVER, GAS INLET |
| 60 | 170374 | 1 | GAS FITTING, 90° ELBOW |
| 60 | 525025 | 1 | SERVICE KIT, FITTING BRASS 3/8 90 DEG ELBOW |
4. Blower and combustion air
| Reference | Manufacturer part number | Quantity | Component description |
|---|---|---|---|
| 61 | 350113 | 1 | WHEEL, BLOWER METAL |
| 63 | 390283BK | 1 | BLOWER HOUSING ASSY |
| 65 | 230509 | 1 | MICRO SWITCH & PADDLE USE 233356 |
| 65 | 233356 | 1 | MICRO SWITCH & PADDLE |
| 65 | 525024 | 1 | SERVICE KIT, SAIL SWITCH |
| 66 | 121247 | 2 | SCREW, 2-56 X 5/8 HEX |
| 68 | 121951 | 2 | NUT #2-56 |
| 70 | 62138 | 3 | BRACKET MOTOR MOUNTING |
| 72 | 70385 | 2 | GASKET CROSSOVER TUBE |
| 73 | 50751 | 1 | TUBE, CROSSOVER |
| 75 | 231208 | 1 | MOTOR ASSY USE 521138 |
| 75 | 521138 | 1 | MOTOR NT34 M,S,SP NT40 |
| 76 | 70384 | 1 | GASKET, MOTOR MOUNT |
| 77 | 390410BK | 1 | HOUSING, COMB AIR ASSY |
| 79 | 350110 | 1 | WHEEL COMBUSTION AIR |
| 81 | 70386 | 1 | GASKET, COMBUSTION AIR |
| 82 | 390424 | 1 | HOUSING, COMBUSTION AIR (OUTSIDE) |
| 83 | 121712 | 1 | BOLT, TINNERMAN |
Replacement parts shown in the diagrams
The products pictured below have manufacturer numbers linked in the reference tables above. Confirm the furnace model, serial number and production revision before ordering. See individual listings for current availability.
Diagram ref 7 · MPN 161154
Suburban 161154 White Heat-Only Mechanical RV Furnace Thermostat
View product and availability
Diagram ref 8 · MPN 520322
Suburban 520322 Furnace Power Supply Wiring Harness, With 3-Pin Female Connector
View product and availability
Diagram ref 10 · MPN 525019
Suburban 525019 Igniter Electrode | P-30S/P-40, Early NT
View product and availability
Diagram ref NS · MPN 231261
Suburban 231261 22-Inch Electrode Wire for NT/P Furnaces
View product and availability
Diagram ref 18 · MPN 525011
Suburban 525011 Furnace Burner & Electrode Gasket Kit | NT/P
View product and availability
Diagram ref 32 · MPN 232351
Suburban 232351 Furnace On/Off Switch | Select SF, SH & NT
View product and availability
Diagram ref 35 · MPN 521099
Suburban 521099 12V Furnace Fan-Control Ignition Module
View product and availability
Diagram ref 42 · MPN 260573
Suburban 260573 Furnace Exhaust Vent NT-24SP, NT-30SP & NT-34SP
View product and availability
Diagram ref NS · MPN 2613A
Suburban 2613A Furnace Core , 30,000 BTU, Replacement for NT-30SP / NT-34SP
View product and availability
Diagram ref 53 · MPN 161123
Suburban 161123 12V Gas Valve | Selected NT/VT Furnaces
View product and availability
Diagram ref 65 · MPN 525024
Suburban 525024 Furnace Sail Switch | Select NT, SF & P-30S
View product and availability
Diagram ref 75 · MPN 521138
Suburban 521138 12 Volt Furnace Motor NT-34M, NT-34S, NT-34SP & NT-40
View product and availability
Diagram ref 82 · MPN 390424
Suburban 390424 Furnace Combustion Air Housing Cover NT30SP, NT34SP & NT40
View product and availability