Best A O Smith Water Heaters In September 2026

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Are you an enthusiast of Best A O Smith Water Heaters? If so, you definitely want to check out the following top 10 Best A O Smith Water Heaters.

To help you in your search, we have completed this list of the Best A O Smith Water Heaters.

Top Rated Best A O Smith Water Heaters Of 2026

Rank	Product Name	Score
1	Thermocouple Replacement for A.O.Smith Gas Furnace Water Heater 24" Thermocouple TC-K24 Buy Now	9.7 Buy Now
2	Reliance Gas Thermopile Assembly 100112330 9007876005 9007870005 100093980 Water Heater Pilot Assy Compatible Buy Now	9.5 Buy Now
3	Apcom WH10-A Bradford White Upper Water Heater Thermostat Buy Now	9.1 Buy Now
4	Rheem SP20060 Electric Water Heater Tune-Up Kit Buy Now	8.8 Buy Now
5	Reliance Water Heater 100109136 Electric Water Heater Plumber Repair Pack, Includes 1 Each Buy Now	8.6 Buy Now
6	A.O. SMITH 9003542005 Water Heater FV Pilot, 190-Degree C, Natural Buy Now	8.3 Buy Now
7	A.O. Smith by Honeywell Gas Control Valve 100262939 2" Cavity Natural Thermostat Compatible Buy Now	8.1 Buy Now
8	Reliance Water Heater Pilot Assembly 100109295 9003542005 Replacement Part Natural Gas Compatible Buy Now	7.8 Buy Now
9	Reliance 9003542 Asembly Natural Gas Water Heater pilot SAME DAY SHIPPING Buy Now	7.5 Buy Now
10	Reliance Hot Water Heater Gas Control Valve 100112336 9007884005 100093974 1" Cavity Thermostat Buy Now	7.2 Buy Now

1. Thermocouple Replacement for A.O.Smith Gas Furnace Water Heater 24" Thermocouple TC-K24

• Thermocouple
• Upgraded replacement for
• This is a brand new replacement gas furnace water heater thermocouple
• Top quality replacement part!
• 24"

2. Reliance Gas Thermopile Assembly 100112330 9007876005 9007870005 100093980 Water Heater Pilot Assy

• Gas thermopile assembly for hot water heaters 100112330 9007876005
• A service technician is recommended for this repair because the gas supply line connections must be checked for leaks after the repair
• Pilot/thermopile w/tubing,natural

3. Apcom WH10-A Bradford White Upper Water Heater Thermostat

• Upper thermostat for bradford white

4. Rheem SP20060 Electric Water Heater Tune-Up Kit

• Sp20060
• Brand name: rheem
• Repair kit
• Plumber's pack

5. Reliance Water Heater 100109136 Electric Water Heater Plumber Repair Pack, Includes 1 Each

• The package height of the product is 43.05 inches
• Country of origin: china
• The package width of the product is 17.65 inches
• The package length of the product is 5.84 inches

6. A.O. SMITH 9003542005 Water Heater FV Pilot, 190-Degree C, Natural

• This product is manufactured in china
• This product adds a great value
• 9003542 natural gas pilot assembly, works on the following water heater

7. A.O. Smith by Honeywell Gas Control Valve 100262939 2" Cavity Natural Thermostat Compatible

• Temperature control assembly 100262939 supplies the burner with gas to heat the water
• A service technician is recommended for the repair to ensure the gas supply line is leak free
• Please provide model and serial number of your water heater if you need us to determine correct gas valve part number!
• Honeywell gas control valve is compatible with all a.o. smith manufactured products including a.o. smith, reliance, state, american, whirlpool and craftmaster branded heaters
• Temperature ratings: ambient-- 0 c to 60 c, tco limit-- 87 c

8. Reliance Water Heater Pilot Assembly 100109295 9003542005 Replacement Part Natural Gas Compatible

• High arc spout and s lever handles
• Water heater fv pilot
• Natural gas pilot assembly 100109295 9003542005

9. Reliance 9003542 Asembly Natural Gas Water Heater pilot SAME DAY SHIPPING

• Reliance water heater co
• 2.2 gpm flow rate
• High arc spout
• S lever handles
• Reliance water heater #9003542 nat gas pilot assembly

10. Reliance Hot Water Heater Gas Control Valve 100112336 9007884005 100093974 1" Cavity Thermostat

• Honeywell gas control valve is compatible with all a.o. smith manufactured products including a.o. smith, reliance, state, and american branded heaters
• A service technician is recommended for the repair to ensure the gas supply line is leak free
• Temperature control assembly 100112336 supplies the burner with gas to heat the water
• Temperature ratings: ambient-- 0 c to 60 c, tco limit-- 87 c
• Please provide model and serial number of your water heater if you need us to determine correct gas valve part number!