Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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10 Best water heaters parts of 2026
Save up to 22% off
Best Choice1
Reliance9.9Exceptional
Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters
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product dimensions: 12W x 8H
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item weight: 1.94 pounds
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batteries included: No
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item model number: 9007884005
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best sellers rank: 100,890 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 118 in Water Heater Replacement Parts
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Value for Money2
HYDRO MASTER9.8Exceptional
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
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item weight:3.75 pounds
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batteries included:No
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item model number:0560301
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best sellers rank:#5,732 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2 in Water Heater Replacement Parts
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3
DROMIX9.7Exceptional
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
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product dimensions:N/A
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item weight: 1.61 pounds
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batteries included: No
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item model number: EWH-01
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best sellers rank: 22,393 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 9 in Water Heater Replacement Parts
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4
DROMIX9.6Exceptional
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
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product dimensions:N/A
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item weight: 1.74 pounds
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batteries included: No
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item model number: EWH-02
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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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5
NISHCON9.5Excellent
NISHCON EWH-01 Electric Water Heater Tune-Up Kit, Water Heater Parts Fit for Most Electric Water Heaters, Includes 2× Heater Elements - 4500W 240V (3500W@208V), Upper & Lower Heater Thermostat
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6
yrjns9.4Excellent
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
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product dimensions: 1 x 0.5 x 0.2 inches
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item weight: 1.72 pounds
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batteries included:N/A
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item model number: 44 Magnesium Water Heater Anode Rod
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best sellers rank: 24,499 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 20 in Water Heater Replacement Parts 4,183 in Parts & Accessories
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7
NISHCON9.3Excellent
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
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8
Lamudo9.1Excellent
9003542 Pilot Assembly Replacement for Natural Gas Water Heater, Compatible with Reliance, A.O.Smith, Kenmore, State GS and GSX, Replaces 100109295,9003542005,18324-190
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product dimensions: 2.2 x 2.2 x 1.5 inches
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item weight: 5.6 ounces
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batteries included: No
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item model number: 9003542
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best sellers rank: 27,065 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 11 in Water Heater Replacement Parts
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9
DROMIX9.0Excellent
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
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product dimensions:N/A
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item weight: 2.72 pounds
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batteries included: No
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item model number: EWH-03
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best sellers rank: 32,377 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 15 in Water Heater Replacement Parts
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10
Lrichy8.7Very Good
Lrichy 5 in 1 Value RV Water Heater Parts Spare Kit for Suburban, 520814 Control Circuit Board, 232306 & 232282 T-STAT and E.C.O Switch, 232258 Igniter Electrode, 232362 Electric Element Switch
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