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10 Best water heaters parts of 2025
Explore top picks
Best Choice1
RaneinRanein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Key specs-
Brand:Ranein
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Color:Gray
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Battery Life:N/A
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Screen Size:N/A
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RAM Size:N/A
9.9Exceptional
Our Rating
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Value for Money2
ChromexChromex Tankless Water Heater Flush Kit with Gallon Liquid Descaling Solution and 1/6HP Extra Strength Pump
9.8Exceptional
Our Rating
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3
RheemRheem AM39922-1 Water Heater Burner Assembly Kit - RG40S-40 Natural Gas
9.7Exceptional
Our Rating
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4
RelianceReliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters
Key specs-
size:Pack of 1
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style:Indoor Installation
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usage:N/A
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special features:N/A
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material:N/A
9.6Exceptional
Our Rating
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5
Lamudo9003542 Pilot Assembly Replacement for Natural Gas Water Heater, Compatible with Reliance, A.O.Smith, Kenmore, State GS and GSX, Replaces 100109295,9003542005(12-month warranty)
9.3Excellent
Our Rating
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6
HYDRO MASTERHYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass
9.2Excellent
Our Rating
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7
DROMIXEWH-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
9.1Excellent
Our Rating
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8
PulaimUpgrade 100112330 Water Heater Pilot Assembly, Replace 9007876 Thermopile for Water Heater, Compatible with 300 301 Series Whirlpool Water Heater Parts & A.O.Smith, American, State, Kenmore, Reliance
Key specs-
size:5.9 x 4.7 x 0.5 inches
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style:Water heater pilot assembly
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usage:N/A
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special features:N/A
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material:High quality materials
9.0Excellent
Our Rating
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9
puxyblueEWH-03 Electric Water Heater Tune-Up Kit by puxyblue - Fit for A O Simith Ken-more Whhirl-pool with Upper & Lower Heater Thermostat, Heater Elements, Element Wrench, Water Heater Parts
8.9Very Good
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10
LrichyLrichy 3 in 1 Value RV Water Heater Replacement Parts Spare Kit for Atwood/Dometic, 91365 RV Water Heater Circuit Board, 91447 Thermal Cut Off & Thermostat Kit, 93868 Spark Probe Igniter Electrode
Key specs-
material:High-quality materials
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special feature:Integrated kit
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wattage:N/A
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color:N/A
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operation mode:N/A
8.7Very Good
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