Advertising Disclosure

Best water heater parts - April 2026

Last Updated - April 1, 2026

1
Best Choice
14% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

AO Smith
14% Off

AO Smith 100112342 - K,FINAL BURNER ASSY,NAT,16",#37 ORIFICE

AO Smith

$164.00

$190.42
(14% Off)

More Details
Main highlights
- K,FINAL BURNER ASSY,NAT,16",#37 ORIFICE
$164.00
$190.42 (14% Off)
2
Best Value
30% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Honeywell
30% Off

Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1" Cavity made by Resideo

Honeywell

$149.99

$213.99
(30% Off)

More Details
Main highlights
- Temperature ratings: ambient-- 0 c to 60 c. Inlet/Outlet Size (in.) - 1/2 inch. NPT x 1/2 inch. Inverted Flare. Capacity - Min. 30 ft3/hr, Max. 75ft3/hr
- Temperature Range: 32 to 150 F
- Pressure regulator setting (psi): 5.0 in. Wc
- Mounting in the upright position
- An included integrated NTC temperature sensor reads water temperature within the appliance up to 221 F (105 C)
$149.99
$213.99 (30% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

DROMIX

EWH-01 Electric Water Heater Tune-Up Kit, Includes Two Water Heater Thermostats, Two Water Heater Heating Elements - 4500W 240V, T-O-D Style Thermostat, Water Heater Replacement Parts

DROMIX

$35.59

More Details
Main highlights
- 【Versatile Fits】The Tune-up Kits in Plumber's pack Fits Most Water Heaters with Dual Elements - Rheem, A.O Smith, Whirlpool, GE, Richmond, Ruud, BRADFORD WHITE; CRAFTMASTER; GENERAL ELECTRIC; GS WOOD; KENMORE; LOCHINVAR; RELIANCE; RICHMOND; STATE; MOR-FLO; APCOM etc
- 【ONE YEAR WARRANTY】Z Turn-up Kit Includes (2) 4500W 240V COPPER Water Heater Element, Insert Length: 13-9/16". 3500W@208V. Fit Most Brands of Water Heater >= 30 Gallons.
- 【ONE YEAR WARRANTY】Includes (1) Upper Water Heater Thermostat, (1) Lower Water Heater Thermostat, 120V ~ 480V
- 【More Durable】Extra Longer Life of Heating Element with Chromed Coating on the Heating Area
- 【Interchangeable】Therm-O-Disc Type Thermostat, Can interchange with APCOM type.
$35.59
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Reliance

Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters

Reliance

$139.28

More Details
Main highlights
- This product is manufactured in China
- This product adds a great value
- Note : This is a gas control valve and should be installed by a professional and not by homeowner as that potentially voids any warranty by not including professional installation.
$139.28
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

DROMIX

EWH-03 Electric Water Heater Tune-Up Kit with Element Wrench, Includes Upper & Lower Heater Thermostat, 2x Heater Elements - 4500W 240V (3500W@208V), 1 x Element Wrench, Water Heater Replacement Parts

DROMIX

$42.99

More Details
Main highlights
- 【ONE YEAR WARRANTY】If you find any issue not limited on quality problems, please contact us in time to support or return/refund, we will try our best to solve it for you, please rest assured to buy.
- 【Contents】(2) Water Heater thermostats: one is upper and another is lower thermostat. 120V ~ 480V, Temperature Adjustment Range: 90F ~ 150F. Thermo-O-Disc(TOD) Style, can exchangeable with Apcom Style.
- 【Contents】(1) Element wrench socket: One end size 1-1/2-inch hex removing all residential screw-in water heater elements. 5" Length providing the clearance needed for a correct connection and easy loosening.
- 【Contents】 (2) Copper Heating Elements with Gaskets: 4500W@240 (3800W@208V), Screw-in Type.
- 【Application】Plumber's TOD Style Thermostats Kit provides a quick tune-up to prelong the water heater's life. The Tune-up Kits in Plumber's pack has good compatibility, fitting Most Electric Water Heaters.
$42.99

Best water heater parts - April 2026

AO Smith 100112342 - K,FINAL BURNER ASSY,NAT,16",#37 ORIFICE

Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1" Cavity made by Resideo

EWH-01 Electric Water Heater Tune-Up Kit, Includes Two Water Heater Thermostats, Two Water Heater Heating Elements - 4500W 240V, T-O-D Style Thermostat, Water Heater Replacement Parts

Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters

EWH-03 Electric Water Heater Tune-Up Kit with Element Wrench, Includes Upper & Lower Heater Thermostat, 2x Heater Elements - 4500W 240V (3500W@208V), 1 x Element Wrench, Water Heater Replacement Parts

You may also like...

Upgrade 100112330 Water Heater Pilot Assembly, Replace 9007876 Thermopile, Compatible with 300 301 Series Whirlpool Water Heater Parts & A.O.Smith, American, State, Kenmore, Reliance

Rheem AP14270G Gas Control Thermostat, Natural Gas , Gray , 12.7X7.5X6.6 inches

EWH-02 Electric Water Heater Tune-Up Kit, Water Heater Parts - Two 4500W 240V Heater Elements, Universal Upper Water Heater Thermostat, Lower Thermostat and Protective Covers. Fits Most brands

Resideo CQ100A1013/U 24-Inch Replacement Thermocouple for Gas Furnaces, Boilers and Water Heaters

HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass

Hoeine Pilot Assembly for Water Heater Parts Compatible with Rheem Ruud Richmond SP21058 SP20824 SP20754 SP20800 | NG/LP Universal Burner Ignition Replacement Kit with Thermopile & Sparker

239-43676-03 & 415-43676-03 Resettable KSD301-290F Water Heater Thermal Switch, Compatible with Bradford White, Auto-Reset Thermal Limit/Cutoff Switch for Gas or Electric Models (4154367603)

RV Water Heater Anode Rod - 2-Pack, 2 Years Warranty - 9.25" x 3/4" NPT - Premium Magnesium Anode Rod for hot water heater Rv, Long-Lasting Protection Suburban Anode Rod for Rv Water Heater

Combination Gas Control Replacement Kit - NG

44" Flexible Magnesium Anode Rod, Hot Water Heater Anode Rod Replace for GE, Rheem, Reliance, Richmond, Kenmore Water Heater Including 1-1/16" Hex Socket Tool and Teflon Tape

Sign up and get exclusive special deals