Jupiter Heating.com

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

  • Use the chart to find the part you need to order. A line art drawing is below the chart to assist you in locating your part.
  • Click on the underlined link to go directly to the part's page for pricing and ordering.
  • Part numbers that are no longer active in the AO Smith database are not included on the chart. In addition, some part numbers have changed to a new part number. Please see AO Smith New Part Cross Reference / Discontinued Part Guidelines for further assistance.
  • You can download and print the original PDF of the A.O. Smith parts list at the bottom of the page.

 

Item Description
HWB/HW-399/420
Series 104 - 107
3 Bracket, Gas Control String 93764 (new # 100110423)
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)
9 Bushing, Snap 98863 (new # 100030121)
10 Cap, Terminal End 98206 (new # 100029976)
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)
18 Control, Limit (Protector Switch) 77981-2 (new # 100110201)
22 Cover, Top 96096-701 (new # 100110316)
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)
32 Insulator 32779-1 (new # 100006572)
34 Leg 96383-701 (new # 100110346)
40 Ring, Support 85405 (new # 100110422)
43 Screw, Thumb 97288 (new # 100029820)
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)
53 Terminal, Segment (6 Required) 98205 (new # 100029975)
54 Thermal Balancer 98190 (new # 100110724)
56 Transformer 69170-10 (new # 100110732)
57 Tube, Asbestos Free 68831 (new # 100110419)
58 Tube, By-Pass 94451-3 (new # 100110644)
59 Tubing, 1/4 in. x 60 in. Wire Assorted Fittings (User to cut to required length) 1417-60 (new # 100109617)
60 Valve, Gas Control:  
  - Natural Gas 78450-4 (new # 100110218) / 78450 (new # 100110218)
  - Propane 76468-8* / 76468-7 (new # 100109851)
61 Valve, Pilot 200683 (new # 100059254)
62 Valve, Relief - Models HWB 50 psi 210451-1 (new # 100111922)
65 Wire, Ground 250° C 170889-69 (new # 100109808)
66 Standard hardware items to be purchased locally  
70 Ignitor 69905-1 (new # 100111719)
71 Glass Yarn (4 required) 68831-3 (new # 100110177)
72 Glass Yarn (4 required) 68831-4 (new # 100110420)
NOTES:
- The manufacturer may change part numbers and availability at any time.

 

 

 

Download original AO Smith Parts List
(Use the back arrow to return to this page, or open the PDF in a new tab.)