Suburban NT40 Furnace Parts Diagram & OEM Parts List
Use this Suburban NT40 40,000 BTU ducted furnace parts breakdown to identify replacement cabinet parts, duct collars, thermostats, electrodes, ignition modules, limit switches, gas valves, burners, motors, blower wheels, gaskets, vent parts and other OEM RV furnace service parts.
Looking for replacement furnace parts? Shop our RV Furnace Parts Collection for ignition boards, motors, sail switches, limit switches, gas valves, thermostats, blower wheels and more.
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Suburban NT40 Cabinet, Duct & Junction Box Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 1 | 101332 | 1 | CABINET ASM USE 101880 |
| 1 | 101880 | 1 | CABINET |
| 2 | 121662 | 2 | FASTNER TINNERMAN USE 122060 |
| 4 | 101330 | 1 | FRONT, CABINET USE 101879 |
| 5 | 101879 | 1 | FRONT, CABINET |
| 6 | 50715 | 4 | DUCT COLLAR, 4 IN. |
| 7 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 9 | 90544 | 1 | JUNCTION BOX COVER |
| 10 | 230218 | 1 | BUSHING SNAP 7/8 IN |
Suburban NT40 Electrode, Ignition, Intake & Vent Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| NS | 520797 | 1 | GASKET KIT |
| 13 | 21166BK | 1 | CHAMBER, COMBUSTION |
| 15 | 70163 | 1 | GASKET, ELECTRODE USE 071076 |
| 15 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 15 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 15 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 16 | 230956 | 1 | ELECTRODE 3 PRONG - Below Serial# 920500001 |
| 16 | 525019 | 1 | SERVICE KIT, ELECTRODE - Below Serial# 920500001 |
| 16 | 231933 | 1 | ELECTRODE - Above Serial# 920500001 |
| 16 | 525029 | 1 | SERVICE KIT, ELECTRODE - Above Serial# 920500001 |
| NS | 231261 | 1 | ELECTRODE WIRE |
| 19 | 30764 | 1 | BURNER ACCESS DOOR |
| 20 | 70398 | 1 | GASKET, BURNER ACCESS DOOR USE 071076 |
| 20 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 20 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 20 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 22 | 231807 | 1 | LIMIT SWITCH 190 DEGREE |
| 24 | 70362 | 1 | BUSHING, SNAP |
| 25 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 26 | 230714 | 1 | SPLICER |
| 28 | 63248 | 1 | BRACKET POWER SUPPLY |
| 32 | 520741 | 1 | MODULE BOARD, WAS SUPERCEEDED BY 520820. USE 521099 |
| 32 | 520820 | 1 | MODULE BOARD, WAS SUPERCEEDED USE 521099 |
| 32 | 521099 | 1 | IGNITION CONTROL MODULE |
| 34 | 70807 | 1 | INSULATOR, MODULE BOARD |
| 35 | 230218 | 1 | BUSHING SNAP 7/8 IN |
| 36 | 90301 | 1 | PANEL, BOARD MOUNTING |
| 37 | 63522 | 1 | SUPPORT BRACKET |
| 39 | 52041 | 1 | INTAKE TUBE ASSY |
| 39 | 50933 | 1 | TUBE, INTAKE 3IN LONG 2IN OD USE 52041 |
| 40 | 260123 | 1 | CAP,VENT/EXH TUBE ASSY USE 260350 |
| 40 | 260350 | 1 | VENT CAP & EXHAUST TUBE ASSY USE 260560 |
| 40 | 260560 | 1 | VENT CAP, EXHAUST TUBE, RAIN SHEILD ASSY |
| 42 | 232351 | 1 | ON/OFF SWITCH |
| NS | 2614A | 1 | FURNACE CORE REPLACEMENT RP-40N |
Suburban NT40 Burner, Gas Valve & Manifold Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 44 | 10702 | 1 | BURNER ASSY |
| 45 | 180216 | 1 | ORIFICE #49 (LP GAS ONLY) |
| 46 | 70408 | 1 | GASKET, MANIFOLD PIPE |
| 48 | 171107 | 1 | PIPE, MANIFOLD USE 171472 |
| 48 | 171472 | 1 | MANIFOLD PIPE |
| 49 | 62571 | 1 | BRACKET, VALVE MOUNTING |
| 50 | 170012 | 1 | ELBOW,STREET 90 DEGREE USE 171427 |
| 50 | 171427 | 1 | ELBOW, STREET |
| 51 | 170374 | 1 | GAS FITTING, 90° ELBOW |
| 51 | 525025 | 1 | SERVICE KIT, FITTING BRASS 3/8 90 DEG ELBOW |
| 53 | 161123 | 1 | GAS VALVE 3/8 X 1/8 |
Suburban NT40 Blower, Motor & Combustion Air Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 61 | 350098 | 1 | WHEEL ROOM AIR |
| 63 | 390384BK | 1 | BLOWER HOUSNG ASSY |
| 65 | 121247 | 2 | SCREW, 2-56 X 5/8 HEX |
| 66 | 232279 | 1 | SWITCH, SAIL USE 233355 |
| 66 | 233355 | 1 | SAIL SWITCH |
| 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 | 390179 | 1 | HOUSING COMBUSTION 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 |
Need help finding the correct Suburban NT40 furnace part?
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your furnace model number, serial number and part number.
Click any manufacturer part number above to search our inventory. If you cannot find the part you need, contact us with your furnace model number, serial number and part number.
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