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Directory: Catalog > Water
Heaters > A.O. Smith > Parts
Parts List: A.O. Smith HW-399, HW-420, HWB-399, HWB-420; Series 104/105, 106/107, SMR Canada Z-14
- Links are included to the parts that are available to be purchased.
- Parts that are not listed in the chart are either discontinued by AO Smith or are not available for purchase.
- The item number in the first column corresponds to the location of the part in the line art drawing below the chart.
| Item |
Description |
HWB/HW-399/420
Series 104 - 107
|
| 5 |
Bracket, Shield - Series 104, 106 |
190473 (new # 100110664) |
| 6 |
Burner, Main: |
|
| |
- Natural Gas, Altitude 0 - 2,000 ft. |
98593-2 (new # 100110239) |
| 7 |
Burner, Pilot (with Orifice): |
|
| |
- Natural Gas, Series 104, 106 |
210871 (new # 100110271) |
| 11 |
Clamp, Capillary Tube |
94998 (new # 100111094) |
| 14 |
Coil, Combustion Chamber |
97486 (new # 100110253) |
| 16 |
Control, Intermittent Ignition - Natural Gas |
191182-2 (new # 100109879) |
| 17 |
Control, Limit |
93661-4 (new # 100110233) |
| 25 |
Exchanger, Heat |
190913 (new # 100110236) |
| 26 |
Fitting, Limit Control |
97570 (new # 100029838) |
| 28 |
Hood, Draft: |
|
| |
- Series 104, 106 |
98428-707 (n/a)
/ 98428-704 (new # 100110360) |
| |
- Series 105, 107 |
98428-707 (n/a)
/ 98428-704 (new # 100110360) |
| 40 |
Ring, Support |
85405 (new # 100110422) |
| 44 |
Shield, Base Radiation |
96015 (new # 100110645) |
| 45 |
Sheild, Door |
191119 (new # 100110369) |
| 46 |
Shield, Floor |
96025 (new # 100110647) |
| 48 |
Shield, Pilot - Series 104, 106 |
170247 (new # 100110660) |
| 51 |
Switch, Safety Flow (Required, but not supplied with unit) |
211480 (new # 100110588) |
| 52 |
Tape, Asbestos Free (Used with Item 40) |
95072-1 (new # 100110424) |
| 54 |
Thermal Balancer |
98190 (new # 100110724) |
| 58 |
Tube, By-Pass |
94451-3 (new # 100110644) |
| 60 |
Valve, Gas Control: |
|
| |
- Natural Gas |
78450-4 (no longer available) / 78450 (new # 100110218) |
| |
- Propane |
76468-8* / 76468-7 (new # 100109851) |
| 62 |
Valve, Relief - Models HWB 50 psi |
210451-1 (new # 100111922) |
| 70 |
Ignitor |
69905-1 (new # 100111719) |
NOTES:
- The manufacturer may change part numbers and availability at any time. |
Download original AO Smith Parts List
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