Skip to accessibility statement
Free shipping on orders over $99
●
Your Zip:
43230
ORDER STATUS
Your Zip:
43230
HELP
MENU
CONTACT & SUPPORT
Live Chat: Online Now
SIGN IN
0
CART
×
SIGN IN
Shop by Category
Plumbing
Heating
HVAC
Electrical
PEX
Fittings
Valves
Tools
Resources
Our Team
Account
Order History
Returns
Customer Support
Give Us Feedback
Tools
Reorder
Quick Order
Saved Carts
Lists
Resources
PEX Plumbing
PEX Tools
Radiant Heat
Boiler Room
Plumbing Supplies
Air Conditioning
Video Library
Project Calculators
Find Parts For Your Unit
Filter menu expanded
Filters
Hide Filters
6,247 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (610)
Show
In Stock Only
(610)
Category
–
Accessories & Tools (26)
Blower & Switches (301)
Burners & Ignition (456)
Common Parts (2781)
Elements/Thermostats (75)
Gas Valves (268)
Heat Exchanger Parts (21)
Heater System Pkgs. (1)
High Efficiency Parts (168)
HSI Power Vent Parts (92)
See More
Review Score
–
5 Filter (387)
(387)
4 Filter (28)
(28)
3 Filter (9)
(9)
2 Filter (3)
(3)
1 Filter (4)
(4)
Price Range
–
$1 to $5 Filter (5)
$1 to $5 (5)
$5 to $10 Filter (283)
$5 to $10 (283)
$10 to $15 Filter (292)
$10 to $15 (292)
$15 to $20 Filter (230)
$15 to $20 (230)
$20 to $25 Filter (241)
$20 to $25 (241)
$25 to $30 Filter (254)
$25 to $30 (254)
$30 to $35 Filter (203)
$30 to $35 (203)
$35 to $40 Filter (195)
$35 to $40 (195)
$40 to $45 Filter (180)
$40 to $45 (180)
$45 to $50 Filter (167)
$45 to $50 (167)
See More
Home
Plumbing Supplies
Water Heater Parts
AO Smith Water Heater Parts
AO Smith Hot Water Heater Parts
6247 items
FILTER
Grid
List
Sort: Top Sellers
100262939 Compare Checkbox
Compare
2" CAV NG Service Gas Valve Kit, HW, N3, 100262939
SKU:
100262939
AO Smith
SKU:
100262939
Brand:
AO Smith
(42)
–
+
$234.99
each
ADD TO CART
Add to List
In Stock
Get 20 by
Tomorrow, Jul 17
Total Available: 195
In Stock
Get 20 by
Tomorrow, Jul 17
Total Available: 195
Add to List
100109594 Compare Checkbox
Compare
3/4" Standard Aluminum Anode Rod (33" Length), 100109594
SKU:
100109594
AO Smith
SKU:
100109594
Brand:
AO Smith
(92)
–
+
$48.68
each
ADD TO CART
Add to List
In Stock
Get 93 by
Tomorrow, Jul 17
Total Available: 221
In Stock
Get 93 by
Tomorrow, Jul 17
Total Available: 221
Add to List
100271888 Compare Checkbox
Compare
Kit, Spark Igniter Assembly, (straight), 100271888
SKU:
100271888
AO Smith
SKU:
100271888
Brand:
AO Smith
(7)
–
+
$168.25
each
ADD TO CART
Add to List
In Stock
Get 45 by
Tomorrow, Jul 17
Total Available: 264
In Stock
Get 45 by
Tomorrow, Jul 17
Total Available: 264
Add to List
100108683 Compare Checkbox
Compare
WH10-A, Upper Thermostat w/ E.C.O, Electric, 100108683
SKU:
100108683
AO Smith
SKU:
100108683
Brand:
AO Smith
(85)
–
+
$23.01
each
ADD TO CART
Add to List
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 192
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 192
Add to List
100112330 Compare Checkbox
Compare
Pilot Assembly Kit (Natural Gas), 100112330
SKU:
100112330
AO Smith
SKU:
100112330
Brand:
AO Smith
(42)
–
+
$58.14
each
ADD TO CART
Add to List
In Stock
Get 97 by
Tomorrow, Jul 17
Total Available: 339
In Stock
Get 97 by
Tomorrow, Jul 17
Total Available: 339
Add to List
100113151 Compare Checkbox
Compare
Flame Sensor Rod Kit, 100113151
SKU:
100113151
AO Smith
SKU:
100113151
Brand:
AO Smith
(6)
–
+
$118.30
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tomorrow, Jul 17
Total Available: 246
In Stock
Get 4 by
Tomorrow, Jul 17
Total Available: 246
Add to List
100108421 Compare Checkbox
Compare
WH9, Lower Thermostat, Electric, 100108421
SKU:
100108421
AO Smith
SKU:
100108421
Brand:
AO Smith
(50)
–
+
$16.00
each
ADD TO CART
Add to List
In Stock
Get 76 by
Tomorrow, Jul 17
Total Available: 287
In Stock
Get 76 by
Tomorrow, Jul 17
Total Available: 287
Add to List
100271890 Compare Checkbox
Compare
Kit, Spark Ignition Cable, 100271890
SKU:
100271890
AO Smith
SKU:
100271890
Brand:
AO Smith
(19)
–
+
$29.36
each
ADD TO CART
Add to List
In Stock
Get 39 by
Tomorrow, Jul 17
Total Available: 374
In Stock
Get 39 by
Tomorrow, Jul 17
Total Available: 374
Add to List
100112336 Compare Checkbox
Compare
Gas Control Valve Kit (Natural Gas), 100112336
SKU:
100112336
AO Smith
SKU:
100112336
Brand:
AO Smith
(131)
–
+
$217.66
each
ADD TO CART
Add to List
In Stock
Get 111 by
Tomorrow, Jul 17
Total Available: 230
In Stock
Get 111 by
Tomorrow, Jul 17
Total Available: 230
Add to List
100108283 Compare Checkbox
Compare
High-Watt Density Basic Screw-In Element, 240V 4500W, 100108283
SKU:
100108283
AO Smith
SKU:
100108283
Brand:
AO Smith
(24)
–
+
$17.60
each
ADD TO CART
Add to List
In Stock
Get 64 by
Tomorrow, Jul 17
Total Available: 358
In Stock
Get 64 by
Tomorrow, Jul 17
Total Available: 358
Add to List
100108660 Compare Checkbox
Compare
3/4" Standard Magnesium Anode Rod (0.84" Dia.), 100108660
SKU:
100108660
AO Smith
SKU:
100108660
Brand:
AO Smith
(103)
–
+
$52.35
each
ADD TO CART
Add to List
In Stock
Get 103 by
Tomorrow, Jul 17
Total Available: 290
In Stock
Get 103 by
Tomorrow, Jul 17
Total Available: 290
Add to List
100109136 Compare Checkbox
Compare
Kit, Plumbers Tune Up Kit, 4500w, 240v, 10, 100109136
SKU:
100109136
AO Smith
SKU:
100109136
Brand:
AO Smith
(16)
–
+
$48.02
each
ADD TO CART
Add to List
In Stock
Get 70 by
Tomorrow, Jul 17
Total Available: 224
In Stock
Get 70 by
Tomorrow, Jul 17
Total Available: 224
Add to List
100093992 Compare Checkbox
Compare
Burner Assembly for Natural Gas, 100093992
SKU:
100093992
AO Smith
SKU:
100093992
Brand:
AO Smith
(22)
–
+
$140.00
each
ADD TO CART
Add to List
In Stock
Get 57 by
Tomorrow, Jul 17
Total Available: 176
In Stock
Get 57 by
Tomorrow, Jul 17
Total Available: 176
Add to List
100112663 Compare Checkbox
Compare
Flame Vapor Sensor, 100112663
SKU:
100112663
AO Smith
SKU:
100112663
Brand:
AO Smith
(25)
–
+
$71.40
each
ADD TO CART
Add to List
In Stock
Get 114 by
Tomorrow, Jul 17
Total Available: 246
In Stock
Get 114 by
Tomorrow, Jul 17
Total Available: 246
Add to List
100309396 Compare Checkbox
Compare
Kit, Thermostat, Pcb Assembly, Universal Et, 100309396
SKU:
100309396
AO Smith
SKU:
100309396
Brand:
AO Smith
(34)
–
+
$170.80
each
ADD TO CART
Add to List
In Stock
Get 44 by
Tomorrow, Jul 17
Total Available: 142
In Stock
Get 44 by
Tomorrow, Jul 17
Total Available: 142
Add to List
100109624 Compare Checkbox
Compare
16" Aluminum Anode Rod, 3/4" NPT, 100109624
SKU:
100109624
AO Smith
SKU:
100109624
Brand:
AO Smith
(59)
–
+
$26.52
each
ADD TO CART
Add to List
In Stock
Get 77 by
Tomorrow, Jul 17
Total Available: 239
In Stock
Get 77 by
Tomorrow, Jul 17
Total Available: 239
Add to List
100110899 Compare Checkbox
Compare
Igniter for BTH/SUF/HCG, Natural & Propane, 100110899
SKU:
100110899
AO Smith
SKU:
100110899
Brand:
AO Smith
(20)
–
+
$128.80
each
ADD TO CART
Add to List
In Stock
Get 48 by
Tomorrow, Jul 17
Total Available: 165
In Stock
Get 48 by
Tomorrow, Jul 17
Total Available: 165
Add to List
100271921 Compare Checkbox
Compare
Kit, Danfoss Ignition Transformer, 100271921
SKU:
100271921
AO Smith
SKU:
100271921
Brand:
AO Smith
(4)
–
+
$142.80
each
ADD TO CART
Add to List
In Stock
Get 20 by
Tomorrow, Jul 17
Total Available: 85
In Stock
Get 20 by
Tomorrow, Jul 17
Total Available: 85
Add to List
100270743 Compare Checkbox
Compare
Kit, Diptube, .65x40.5, Ce, 5x3/4"npt, 100270743
SKU:
100270743
AO Smith
SKU:
100270743
Brand:
AO Smith
(10)
–
+
$31.64
each
ADD TO CART
Add to List
In Stock
Get 20 by
Tomorrow, Jul 17
Total Available: 64
In Stock
Get 20 by
Tomorrow, Jul 17
Total Available: 64
Add to List
100271923 Compare Checkbox
Compare
Kit, Rg148 Enhanced Blower Assembly W/o Press, 100271923
SKU:
100271923
AO Smith
SKU:
100271923
Brand:
AO Smith
(9)
$963.30
each
CALL TO ORDER
1-888-757-4774
Add to List
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 122
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 122
Add to List
100093983 Compare Checkbox
Compare
Pilot Assembly, Thermopile w/ Tubing (Propane), 100093983
SKU:
100093983
AO Smith
SKU:
100093983
Brand:
AO Smith
(30)
–
+
$63.24
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tomorrow, Jul 17
Total Available: 73
In Stock
Get 8 by
Tomorrow, Jul 17
Total Available: 73
Add to List
100093631 Compare Checkbox
Compare
Kit, Igniter Replacement, 100093631
SKU:
100093631
AO Smith
SKU:
100093631
Brand:
AO Smith
(31)
–
+
$70.14
each
ADD TO CART
Add to List
In Stock
Get 41 by
Tomorrow, Jul 17
Total Available: 106
In Stock
Get 41 by
Tomorrow, Jul 17
Total Available: 106
Add to List
100293455 Compare Checkbox
Compare
Kit, Pilot/thermopile W/tubing, Natural, 100293455
SKU:
100293455
AO Smith
SKU:
100293455
Brand:
AO Smith
(11)
–
+
$62.15
each
ADD TO CART
Add to List
In Stock
Get 18 by
Tomorrow, Jul 17
Total Available: 99
In Stock
Get 18 by
Tomorrow, Jul 17
Total Available: 99
Add to List
100112652 Compare Checkbox
Compare
Gas Valve, Natural Gas, 100112652
SKU:
100112652
AO Smith
SKU:
100112652
Brand:
AO Smith
(24)
–
+
$366.10
each
ADD TO CART
Add to List
In Stock
Get 52 by
Tomorrow, Jul 17
Total Available: 87
In Stock
Get 52 by
Tomorrow, Jul 17
Total Available: 87
Add to List
100187882 Compare Checkbox
Compare
Flame Sensor, 100187882
SKU:
100187882
AO Smith
SKU:
100187882
Brand:
AO Smith
(1)
–
+
$166.60
each
ADD TO CART
Add to List
In Stock
Get 50 by
Tue, Jul 21
Total Available: 60
In Stock
Get 50 by
Tue, Jul 21
Total Available: 60
Add to List
100108290 Compare Checkbox
Compare
Corrogard Zinc-Plated Copper Mid-Line Screw-In Element, 240v 4500w, 100108290
SKU:
100108290
AO Smith
SKU:
100108290
Brand:
AO Smith
(42)
–
+
$25.69
each
ADD TO CART
Add to List
In Stock
Get 67 by
Tomorrow, Jul 17
Total Available: 218
In Stock
Get 67 by
Tomorrow, Jul 17
Total Available: 218
Add to List
100312667 Compare Checkbox
Compare
PCP-IEC Blue Board, 100312667
SKU:
100312667
AO Smith
SKU:
100312667
Brand:
AO Smith
(1)
–
+
$279.48
each
ADD TO CART
Add to List
In Stock
Get 101 by
Tue, Jul 21
Total Available: 109
In Stock
Get 101 by
Tue, Jul 21
Total Available: 109
Add to List
100109908 Compare Checkbox
Compare
Flame Sensor Kit, 100109908
SKU:
100109908
AO Smith
SKU:
100109908
Brand:
AO Smith
–
+
$56.70
each
ADD TO CART
Add to List
In Stock
Get 42 by
Tomorrow, Jul 17
Total Available: 152
In Stock
Get 42 by
Tomorrow, Jul 17
Total Available: 152
Add to List
100187931 Compare Checkbox
Compare
16" Natural Gas Final Burner Assembly Kit, #34 Orifice, 100187931
SKU:
100187931
AO Smith
SKU:
100187931
Brand:
AO Smith
(12)
–
+
$157.36
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Jul 17
Total Available: 43
In Stock
Get 1 by
Tomorrow, Jul 17
Total Available: 43
Add to List
100112339 Compare Checkbox
Compare
10" WC Gas Valve, LP, 100112339
SKU:
100112339
AO Smith
SKU:
100112339
Brand:
AO Smith
(26)
–
+
$239.40
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tomorrow, Jul 17
Total Available: 68
In Stock
Get 8 by
Tomorrow, Jul 17
Total Available: 68
Add to List
100281571 Compare Checkbox
Compare
Thermopile Assembly, 100281571
SKU:
100281571
AO Smith
SKU:
100281571
Brand:
AO Smith
(10)
–
+
$77.37
each
ADD TO CART
Add to List
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 104
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 104
Add to List
100108260 Compare Checkbox
Compare
3/4" Standard Aluminum Anode Rod, 100108260
SKU:
100108260
AO Smith
SKU:
100108260
Brand:
AO Smith
(44)
–
+
$41.19
each
ADD TO CART
Add to List
In Stock
Get 40 by
Tomorrow, Jul 17
Total Available: 102
In Stock
Get 40 by
Tomorrow, Jul 17
Total Available: 102
Add to List
100271889 Compare Checkbox
Compare
Spark Ignitor Assembly, 100271889
SKU:
100271889
AO Smith
SKU:
100271889
Brand:
AO Smith
–
+
$199.50
each
ADD TO CART
Add to List
In Stock
Get 50 by
Tue, Jul 21
Total Available: 94
In Stock
Get 50 by
Tue, Jul 21
Total Available: 94
Add to List
100223203 Compare Checkbox
Compare
18" Final Burner Assembly Kit, 3.5" EXT AL, #34TP, 100223203
SKU:
100223203
AO Smith
SKU:
100223203
Brand:
AO Smith
(6)
–
+
$139.72
each
ADD TO CART
Add to List
In Stock
Get 13 by
Tomorrow, Jul 17
Total Available: 74
In Stock
Get 13 by
Tomorrow, Jul 17
Total Available: 74
Add to List
100271569 Compare Checkbox
Compare
3/4" NPT Anode Rod, Aluminum -Zinc (33" Length), 100271569
SKU:
100271569
AO Smith
SKU:
100271569
Brand:
AO Smith
(31)
–
+
$62.71
each
ADD TO CART
Add to List
In Stock
Get 17 by
Tomorrow, Jul 17
Total Available: 64
In Stock
Get 17 by
Tomorrow, Jul 17
Total Available: 64
Add to List
100108455 Compare Checkbox
Compare
Residential Orientation T & P Relief Valve Only, Model TP-102, 100108455
SKU:
100108455
AO Smith
SKU:
100108455
Brand:
AO Smith
(19)
–
+
$28.85
each
ADD TO CART
Add to List
In Stock
Get 14 by
Tomorrow, Jul 17
Total Available: 84
In Stock
Get 14 by
Tomorrow, Jul 17
Total Available: 84
Add to List
100111050 Compare Checkbox
Compare
Blower Assembly, 100111050
SKU:
100111050
AO Smith
SKU:
100111050
Brand:
AO Smith
(14)
–
+
$982.10
each
ADD TO CART
Add to List
In Stock
Get 9 by
Tomorrow, Jul 17
Total Available: 44
In Stock
Get 9 by
Tomorrow, Jul 17
Total Available: 44
Add to List
100111073 Compare Checkbox
Compare
16" KA-90 Universal Aluminum/Zinc Anode Rod, .75" DIA, 3/4" NPT, 100111073
SKU:
100111073
AO Smith
SKU:
100111073
Brand:
AO Smith
(31)
–
+
$41.13
each
ADD TO CART
Add to List
In Stock
Get 21 by
Tomorrow, Jul 17
Total Available: 104
In Stock
Get 21 by
Tomorrow, Jul 17
Total Available: 104
Add to List
100187864 Compare Checkbox
Compare
Blower Assembly, 100187864
SKU:
100187864
AO Smith
SKU:
100187864
Brand:
AO Smith
(9)
–
+
$1,019.20
each
ADD TO CART
Add to List
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 75
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 75
Add to List
100108571 Compare Checkbox
Compare
3/4" KA-90 Aluminum / Zinc Anode Rod, 100108571
SKU:
100108571
AO Smith
SKU:
100108571
Brand:
AO Smith
(60)
–
+
$73.97
each
ADD TO CART
Add to List
In Stock
Get 37 by
Tomorrow, Jul 17
Total Available: 106
In Stock
Get 37 by
Tomorrow, Jul 17
Total Available: 106
Add to List
100109945 Compare Checkbox
Compare
Digital Thermostat, 100109945
SKU:
100109945
AO Smith
SKU:
100109945
Brand:
AO Smith
(3)
–
+
$259.12
each
ADD TO CART
Add to List
In Stock
Get 15 by
Tomorrow, Jul 17
Total Available: 70
In Stock
Get 15 by
Tomorrow, Jul 17
Total Available: 70
Add to List
100109621 Compare Checkbox
Compare
3/4" x 5" Pipe Nipple w/ Heat Traps (Pack of 2), 100109621
SKU:
100109621
AO Smith
SKU:
100109621
Brand:
AO Smith
(1)
–
+
$39.90
each
ADD TO CART
Add to List
In Stock
Get 17 by
Tomorrow, Jul 17
Total Available: 47
In Stock
Get 17 by
Tomorrow, Jul 17
Total Available: 47
Add to List
100266133 Compare Checkbox
Compare
10" Straight Concentric Pipe Vent Kit, 100266133
SKU:
100266133
AO Smith
SKU:
100266133
Brand:
AO Smith
(4)
–
+
$51.75
each
ADD TO CART
Add to List
In Stock
Get 14 by
Tomorrow, Jul 17
Total Available: 50
In Stock
Get 14 by
Tomorrow, Jul 17
Total Available: 50
Add to List
100346612 Compare Checkbox
Compare
Ultra Low Nox Burner Assembly, 16", TCO 1" Valve, 100346612
SKU:
100346612
AO Smith
SKU:
100346612
Brand:
AO Smith
(5)
–
+
$387.18
each
ADD TO CART
Add to List
In Stock
Get 24 by
Tomorrow, Jul 17
Total Available: 79
In Stock
Get 24 by
Tomorrow, Jul 17
Total Available: 79
Add to List
100110780 Compare Checkbox
Compare
FV Sensor Kit, 100110780
SKU:
100110780
AO Smith
SKU:
100110780
Brand:
AO Smith
(33)
–
+
$73.03
each
ADD TO CART
Add to List
In Stock
Get 72 by
Tomorrow, Jul 17
Total Available: 152
In Stock
Get 72 by
Tomorrow, Jul 17
Total Available: 152
Add to List
100109434 Compare Checkbox
Compare
16" Magnesium Anode Rod Kit .84 DIA, 100109434
SKU:
100109434
AO Smith
SKU:
100109434
Brand:
AO Smith
(22)
–
+
$35.28
each
ADD TO CART
Add to List
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 59
In Stock
Get 22 by
Tomorrow, Jul 17
Total Available: 59
Add to List
100109926 Compare Checkbox
Compare
Natural Pilot Burner, 100109926
SKU:
100109926
AO Smith
SKU:
100109926
Brand:
AO Smith
(6)
–
+
$76.30
each
ADD TO CART
Add to List
In Stock
Get 2 by
Mon, Jul 20
Total Available: 14
In Stock
Get 2 by
Mon, Jul 20
Total Available: 14
Add to List
100191120 Compare Checkbox
Compare
Spark Igniter, 100191120
SKU:
100191120
AO Smith
SKU:
100191120
Brand:
AO Smith
(4)
–
+
$113.40
each
ADD TO CART
Add to List
In Stock
Get 18 by
Tomorrow, Jul 17
Total Available: 70
In Stock
Get 18 by
Tomorrow, Jul 17
Total Available: 70
Add to List
1
2
3
4
...
131
Refresh
×
Video