10 Best water heaters parts of 2026

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Best Choice

1

A. O. Smith

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

Exceptional

Our Rating
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Value for Money

2

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

Key Features
Enhances safety and efficiency in gas appliances, manufactured in China, ensuring reliable performance and adding significant value to your setup.

Ideal Use Cases
Perfect for professional installation in residential or commercial gas systems, optimizing functionality and ensuring compliance with safety standards.

Customer Reviews
Most praised for its durability and reliability, customers appreciate the peace of mind and quality assurance it offers.
Key specs
- wattage:2000 watts
- size:Pack of 1
- style:Indoor Installation
- color:N/A
- material:N/A
9.7

Exceptional

Our Rating

8.2
Easy installation

8.0
worth the money
3

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
9.6

Exceptional

Our Rating

9.3
Easy installation

8.7
worth the money

8.0
Simple to clean
4

ONENESS 369
Oneness 369 RV Water Heater Anode Rod 2-Pack, 2 Years Warranty - 9.25" x 3/4" NPT Premium Magnesium Rv hot water heater anode rod, Suburban RV Water Heater Parts
Main highlights

Durable Magnesium Composition
Made from 99.9% pure magnesium, this anode rod ensures superior protection against corrosion, extending the life of your RV water heater.

Perfect for Suburban Models
Ideal for Suburban models SW6DE, SW10DE, SW12DE, ensuring compatibility and peak performance in your RV water heater.

Highly Praised for Longevity
Customers frequently commend its long-lasting performance and effective corrosion resistance, making it a reliable choice for RV owners.
Key specs
- Brand:ONENESS 369
- Is Electric:Yes
- Part Number:ONE-RV-MG-2P
- Color:Silver
- Manufacturer:ONENESS 369
9.4

Excellent

Our Rating
5

ONENESS 369

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
9.3

Excellent

Our Rating

9.9
worth the money

9.9
Easy installation

9.9
Simple to take off
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6

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

22% Off
Main highlights

Key Features and Benefits
Lead-free brass, 3/4-Inch IPS, easy identification colored handles, includes pressure relief valve, CSA certified, easy installation.

Ideal Use Cases
Perfect for tankless water heater installations requiring safe, lead-free components and effective system isolation for maintenance.

Customer Reviews Summary
Highly praised for its straightforward installation process and the reliable, easy-to-use color-coded valve handles.
9.2

Excellent

Our Rating

9.1
Easy installation

8.9
Simple to use

8.4
worth the money
7

yrjns

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
9.1

Excellent

Our Rating
8

DROMIX
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
Main highlights

Key Features
Comprehensive tune-up kit for electric water heaters, including thermostats and copper elements, with a one-year warranty to extend appliance life.

Ideal Use Cases
Best for repairing 30-gallon and larger electric water heaters from major brands, ensuring optimal performance and energy efficiency.

Customer Praise
Highly praised for its easy installation and compatibility with multiple water heater brands, significantly improving heater efficiency.
9.0

Excellent

Our Rating

9.9
Simple to use

8.7
Easy installation

8.4
Simple to take off
9

NISHCON

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
8.9

Very Good

Our Rating
10

Lamudo
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
Main highlights

Upgraded Replacement Pilot Assembly
This 9003542 pilot assembly is designed for natural gas water heaters, made of premium material, offers stable and durable performance, and includes a 12-month warranty.

Ideal for Natural Gas Water Heaters
Perfect for replacing the pilot assembly in Reliance, A.O.Smith, Kenmore, State GS and GSX natural gas water heaters, ensuring compatibility and ease of installation.

Exact Replacement and Easy Installation
Customers appreciate the exact fit and straightforward installation process, with many noting it resolved their water heater issues quickly and efficiently.
8.7

Very Good

Our Rating

8.9
Easy installation

8.7
Temperature control

8.4
materials Quality

10 Best water heaters parts of 2026

1

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

How do we rank?

How do we rank?

Analyzing top stores

2

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

8.2

8.0

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

9.3

8.7

8.0

4

Oneness 369 RV Water Heater Anode Rod 2-Pack, 2 Years Warranty - 9.25" x 3/4" NPT Premium Magnesium Rv hot water heater anode rod, Suburban RV Water Heater Parts

5

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

9.9

9.9

9.9

6

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

9.1

8.9

8.4

7

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

8

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

9.9

8.7

8.4

9

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

10

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

8.9

8.7

8.4

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