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10 Best water heaters parts of 2026

Save up to 22% off
  • Best Choice

    1

    AO Smith 100112342 - K,FINAL BURNER ASSY,NAT,16",#37 ORIFICE
    A. O. Smith
    9.8
    Exceptional

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

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  • Value for Money

    2

    Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters
    Reliance
    9.7
    Exceptional

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

    • product dimensions: 12W x 8H
    • item weight: 1.94 pounds
    • batteries included: No
    • item model number: 9007884005
    • best sellers rank: 100,890 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 118 in Water Heater Replacement Parts

  • 3

    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
    9.6
    Exceptional

    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

    • product dimensions:N/A
    • item weight: 1.61 pounds
    • batteries included: No
    • item model number: EWH-01
    • best sellers rank: 22,393 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 9 in Water Heater Replacement Parts

  • 4

    HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass
    HYDRO MASTER
    9.5
    Excellent

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

    22% Off
    • product dimensions:N/A
    • item weight:‎3.75 pounds
    • batteries included:‎No
    • item model number:‎0560301
    • best sellers rank:#5,732 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2 in Water Heater Replacement Parts

  • 5

    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
    DROMIX
    9.4
    Excellent

    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

    • product dimensions:N/A
    • item weight: 1.74 pounds
    • batteries included: No
    • item model number: EWH-02
    • best sellers rank: 84,124 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 92 in Water Heater Replacement Parts
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  • 6

    EWH-02 Electric Water Heater Tune-Up Kit By NISHCON, Fit for Most Brands Water Heaters Includes Upper & Lower Heater Thermostat and Protective Covers, Water Heater Heating Elements
    NISHCON
    9.3
    Excellent

    EWH-02 Electric Water Heater Tune-Up Kit By NISHCON, Fit for Most Brands Water Heaters Includes Upper & Lower Heater Thermostat and Protective Covers, Water Heater Heating Elements

  • 7

    AutoAlly RV Water Heater Replacement Parts Kit for Atwood: 93844 Solenoid Gas, 91638 Burner Tube Valve, 93868 Igniter - Compatible with 6/10 Gallon Tanks, GC10A-4E, G6A-8E/G6A-6E/G6A-4E, G10-3E
    AutoAlly
    9.0
    Excellent

    AutoAlly RV Water Heater Replacement Parts Kit for Atwood: 93844 Solenoid Gas, 91638 Burner Tube Valve, 93868 Igniter - Compatible with 6/10 Gallon Tanks, GC10A-4E, G6A-8E/G6A-6E/G6A-4E, G10-3E

  • 8

    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
    Hoeine
    8.9
    Very Good

    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

    11% Off

  • 9

    Reliance Water Heater 100109136 Electric Water Heater Plumber Repair Pack, Includes 1 Each Upper Thermostat, 1 set
    Reliance
    8.8
    Very Good

    Reliance Water Heater 100109136 Electric Water Heater Plumber Repair Pack, Includes 1 Each Upper Thermostat, 1 set

    • product dimensions:1 x 7.13 x 17.25 inches
    • item weight:3.52 ounces
    • batteries included:N/A
    • item model number:100109136
    • best sellers rank: 85,705 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 83 in Water Heater Replacement Parts

  • 10

    3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass, 3/4 Inch Service Installation Valve for rheem,rinai,ecosmart,navien,noritz,takagi,bosch
    Iococee
    8.7
    Very Good

    3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass, 3/4 Inch Service Installation Valve for rheem,rinai,ecosmart,navien,noritz,takagi,bosch

    12% Off
    • product dimensions:N/A
    • item weight: 4.55 pounds
    • batteries included: No
    • item model number:N/A
    • best sellers rank: 61,828 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 60 in Water Heater Replacement Parts

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