Suburban P40B Park-Model Furnace Exploded Parts Reference
The P40B park-model furnace uses its own cabinet and control assemblies. This illustrated guide separates external cabinet components, internal electrical and vent pieces, the gas train, and the motor and blower system without assuming every P40 part fits P40B.
Use the drawing positions and Suburban part numbers below to identify each component. Check the furnace model, fuel type and serial number before choosing a replacement.
1. P40B cabinet and mounting pieces
Illustration 1 — P40B cabinet and mounting pieces. Match the drawing callout to the manufacturer number below.
Drawing reference
Manufacturer part number
Quantity
Component description
1
102274
1
CABINET ASSEMBLY P40B
2
121662
2
FASTNER TINNERMAN USE 122060
2
122060
2
FASTENER, TINNERMAN
4
101878
1
CABINET FRONT
6
50715
4
DUCT COLLAR, 4 IN.
7
161154
1
THERMOSTAT, WALL (WHITE)
9
90544
1
JUNCTION BOX COVER
10
231827
2
BUSHING, SNAP 7/8IN
2. Electrical, chamber and vent assemblies
Illustration 2 — Electrical, chamber and vent assemblies. Match the drawing callout to the manufacturer number below.
Drawing reference
Manufacturer part number
Quantity
Component description
11
520944
1
TRANSFORMER, 24VAC
13
021203BK
1
COMBUSTION CHAMBER ASSEMBLY
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
16
525019
1
SERVICE KIT, ELECTRODE
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
230825
1
LIMIT SWITCH 195 DEGREE
24
70362
1
BUSHING, SNAP
26
230714
1
SPLICER
28
63248
1
BRACKET POWER SUPPLY
32
520947
1
MODULE BOARD 24V
34
70538
1
INSULATOR, MODULE BOARD
35
231827
1
BUSHING, SNAP 7/8IN
36
90301
1
PANEL, BOARD MOUNTING
39
52041
1
INTAKE TUBE ASSY
40
260560
1
VENT CAP, EXHAUST TUBE, RAIN SHEILD ASSY
3. Burner, fuel-specific orifices and manifold
Illustration 3 — Burner, fuel-specific orifices and manifold. Match the drawing callout to the manufacturer number below.
Drawing reference
Manufacturer part number
Quantity
Component description
44
10702
1
BURNER ASSY
45
180216
1
ORIFICE #49 (LP GAS ONLY)
45
180259
1
ORIFICE #30 (NATURAL GAS ONLY)
46
70408
1
GASKET, MANIFOLD PIPE
48
171034
1
MANIFOLD PIPE
49
62819
1
VALVE MOUNTING BRACKET
50
170375
1
BRASS GAS FITTING
53
161132
1
VALVE 24V.A.C.
4. P40B motor, air wheels and blower housings
Illustration 4 — P40B motor, air wheels and blower housings. Match the drawing callout to the manufacturer number below.
Drawing reference
Manufacturer part number
Quantity
Component description
54
121595
4
TINNERMAN U-CLIP
55
232846
1
MOTOR
56
121951
2
NUT #2-56
57
121247
2
SCREW, 2-56 X 5/8 HEX
58
232325
1
SAIL SWITCH USE 233070
58
233070
1
SAIL SWITCH USE 233242
58
233242
1
SAIL SWITCH USE 233383
58
233383
1
SAIL SWITCH
59
520837
1
CAPACITOR, W/ BOOT
60
390543BK
1
BLOWER HOUSING ASSY
61
520837
1
CAPACITOR, W/ BOOT
63
62925
1
CLAMP, CAPACITOR
64
350086
1
WHEEL, ROOM AIR
66
70385
2
GASKET CROSSOVER TUBE
67
50751
1
TUBE, CROSSOVER
69
70844
1
GASKET, MOTOR
70
391021BK
1
COMBUSTION AIR HOUSING ASSM.
71
70362
1
BUSHING, SNAP
74
350124
1
WHEEL, COMBUSTION AIR
75
70386
1
GASKET, COMBUSTION AIR
76
121712
1
BOLT, TINNERMAN
77
390424
1
HOUSING, COMBUSTION AIR (OUTSIDE)
79
63522
1
SUPPORT BRACKET
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