Suburban NT42T Furnace Parts Diagram & OEM Parts List
Use this Suburban NT42T 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 NT42T Cabinet, Duct & Harness Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 1 | 101033 | 1 | CABINET ASSEMBLY |
| 2 | 50715 | 4 | DUCT COLLAR, 4 IN. |
| 2A | 70612 | 4 | GASKET, DUCT COLLAR |
| 3 | 101002 | 1 | CABINET FRONT ASSM. |
| 4 | 121224 | 2 | SCREW, #10 X 3/4 |
| 5 | 121389 | 2 | SCREW, #10 X 1/2 |
| 6 | 160902 | 1 | WALL THERMOSTAT USE 161154 |
| 6 | 161154 | 1 | THERMOSTAT, WALL (WHITE) |
| 7 | 230789 | 1 | POWER SUPPLY HARNESS (FEMALE) |
Suburban NT42T Electrode, Ignition, Vent & Combustion Chamber Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 8 | 121407 | 2 | SCREW 8-32 X 3/8 HEX BK |
| 9 | 230956 | 1 | ELECTRODE 3 PRONG |
| 9 | 525019 | 1 | SERVICE KIT, ELECTRODE |
| NS | 231261 | 1 | ELECTRODE WIRE |
| 10 | 121421 | 2 | NUT, 10-24 HEX(THREAD LOCKING) |
| 11 | 30764 | 1 | BURNER ACCESS DOOR |
| 12 | 70163 | 1 | GASKET, ELECTRODE USE 071076 |
| 12 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 12 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 12 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 14 | 121388 | 4 | SCREW, #10 X 1/2 |
| 17 | 70398 | 1 | GASKET, BURNER ACCESS DOOR USE 071076 |
| 17 | 71076 | 1 | BURNER/ELECTRODE GASKET SET USE 72103 |
| 17 | 72103 | 1 | GASKET KIT, BURNER /ELECTRODE |
| 17 | 525011 | 1 | SERVICE KIT, GASKETS BURNER / ELECTRODE |
| 18 | 20927 | 1 | COMBUSTION CHAMBER |
| 19 | 120158 | 2 | SCREW, #8 X 3/8 |
| 20 | 230888 | 1 | LIMIT SWITCH 240 DEGREE |
| 22 | 121252 | 1 | SCREW 10 X 3/8 PH PH |
| 23 | 70362 | 1 | BUSHING, SNAP |
| 24 | 121252 | 2 | SCREW 10 X 3/8 PH PH |
| 25 | 60270 | 1 | WIRE CLAMP |
| 26 | 230714 | 1 | SPLICER |
| 27 | 120714 | 2 | SCREW, #6 X 1/4 |
| 28 | 120158 | 1 | SCREW, #8 X 3/8 |
| 29 | 70270 | 1 | BUSHING, SNAP 1/2 IN. |
| 30 | 62135 | 1 | BRACKET, POWER SUPPLY |
| 31 | 120158 | 2 | SCREW, #8 X 3/8 |
| 34 | 230587 | 1 | MODULE BOARD USE 520741 |
| 34 | 520741 | 1 | MODULE BOARD, WAS SUPERCEEDED BY 520820. USE 521099 |
| 34 | 520820 | 1 | MODULE BOARD, WAS SUPERCEEDED USE 521099 |
| 34 | 521099 | 1 | IGNITION CONTROL MODULE |
| 36 | 121357 | 2 | SCREW 6 X 5/8 PH PH |
| 37 | 70538 | 1 | INSULATOR, MODULE BOARD |
| 38 | 90301 | 1 | PANEL, BOARD MOUNTING |
| 39 | 231202 | 1 | TIME DELAY RELAY USE 521069 |
| 39 | 521069 | 1 | TIME DELAY RELAY |
| 40 | 121357 | 2 | SCREW 6 X 5/8 PH PH |
| 41 | 260123 | 1 | CAP,VENT/EXH TUBE ASSY USE 260350 |
| 41 | 260350 | 1 | VENT CAP & EXHAUST TUBE ASSY USE 260560 |
| 41 | 260560 | 1 | VENT CAP, EXHAUST TUBE, RAIN SHEILD ASSY |
| 42 | 52041 | 1 | INTAKE TUBE ASSY |
| 42 | 50933 | 1 | TUBE, INTAKE 3IN LONG 2IN OD USE 52041 |
| 43 | 110506 | 1 | RADIATION SHIELD ASSY |
| 44 | 50633 | 1 | COLLAR/SHIELD EXH |
| 45 | 121224 | 4 | SCREW, #10 X 3/4 |
Suburban NT42T Burner, Gas Valve & Manifold Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 47 | 10639 | 1 | BURNER ASSEMBLY |
| 48 | 180216 | 1 | ORIFICE #49 (LP GAS ONLY) |
| 49 | 70408 | 1 | GASKET, MANIFOLD PIPE |
| 50 | 121388 | 4 | SCREW, #10 X 1/2 |
| 51 | 170924 | 1 | MANIFOLD PIPE |
| 52 | 160832 | 1 | VALVE USE 161078 |
| 52 | 161078 | 1 | VALVE USE 161123 |
| 52 | 161123 | 1 | GAS VALVE 3/8 X 1/8 |
| 53 | 62571 | 1 | BRACKET, VALVE MOUNTING |
| 54 | 120158 | 2 | SCREW, #8 X 3/8 |
| 55 | 170012 | 1 | ELBOW,STREET 90 DEGREE USE 171427 |
| 55 | 171427 | 1 | ELBOW, STREET |
| 60 | 160740 | 1 | VALVE, SHUTOFF |
Suburban NT42T Blower, Motor & Combustion Air Parts
| Reference # | Mfg Part Number | Qty | Description |
|---|---|---|---|
| 61 | 350098 | 1 | WHEEL ROOM AIR |
| 62 | 121252 | 4 | SCREW 10 X 3/8 PH PH |
| 63 | 390384 | 1 | BLOWER HOUSING ASSEMBLY |
| 64 | 121227 | 3 | SCREW,10-24 X 1/2 |
| 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 | 121661 | 2 | FASTENER TINNERMAN #2-56 |
| 69 | 121388 | 3 | SCREW, #10 X 1/2 |
| 70 | 62138 | 3 | BRACKET MOTOR MOUNTING |
| 71 | 120717 | 3 | NUT, HEX # 10-24 KEPS |
| 72 | 70385 | 2 | GASKET CROSSOVER TUBE |
| 73 | 50751 | 1 | TUBE, CROSSOVER |
| 74 | 121388 | 2 | SCREW, #10 X 1/2 |
| 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 |
| 78 | 121436 | 3 | SCREW #10-16 X 1/2 |
| 79 | 350077 | 1 | WHEEL COMB AIR |
| 80 | 121436 | 3 | SCREW #10-16 X 1/2 |
| 81 | 70386 | 1 | GASKET, COMBUSTION AIR |
| 82 | 390424 | 1 | HOUSING, COMBUSTION AIR (OUTSIDE) |
| 83 | 120615 | 9 | SCREW 8 X 1/2 PH PH |
| 83A | 121712 | 1 | BOLT, TINNERMAN |
Need help finding the correct Suburban NT42T furnace part?
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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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