Water Heater Parts of 2025

Advertising Disclosure

Last Updated - April 20, 2025

Best Choice

1

Clicked 94 times in the last month

Chromex
Chromex Tankless Water Heater Flush Kit with Certified Liquid Descaling Solution and 1/6HP Extra Strength Pump

9.9 Easy installation

9.9 Simple to use

9.7 Instruction

Why we love it

Easy to use.

Extend water heater lifespan.

Safe and non corrosive.
Main highlights

Key Features
Comprehensive kit includes 5-gallon bucket, 1/6 HP pump, hoses, descaler solution, and pump grate; safe for various materials and systems.

Ideal Use Cases
Perfect for owners of Rinnai, Bosch, Noritz, and other tankless water heaters looking to improve efficiency and extend lifespan with easy maintenance.

Customer Praise
Most reviews highlight the ease of use and effectiveness of the cleaning solution, appreciating the straightforward instructions and quick cleaning process.
Show more
9.7

Exceptional

View offer on:

Show more
Curious about how we select the top products for you? Explore How It Works

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.
Value for Money

2

Chromex
Chromex Tankless Water Heater Flush Kit with Concentrated Vinegar, Dilutes to 4 Gallons and 1/6HP Extra Strength Pump
Main highlights

Works with most all tankless water heaters such as Rinnai, Bosch, Noritz, Rheem, Takagi, Tempra, Navien, Ecosmart, Stiebel, Eccotemp, Atmor, Trutankless, Marey Power, and others.
Our descaling kit is an ideal match for those who want to adhere to Rinnai and other manufacturer guidelines and ensure you maintain your appliance responsibly and effectively. Add 3 parts water for standard vinegar strength.
Maintain and extend the lifespan of your tankless water heater with our 5 Piece Tankless Water Heater Flush Kit. Kit includes 6 gallon bucket with lid, 1/6 HP Pump, PVC Coated Premium Hoses, Pump Grate, 20% concentrated vinegar. Bonus maintenance tag included.
Chromex manufactures a variety of quality tools for both the do it yourself-er and the professional. We know that sometimes things can get a bit messy. We are here to help! Please contact us with any questions or concerns. All our products also come with a 1-year warranty and hassle-free returns.
6 Foot hoses easily connect to tankless heater valves, and the kit will clean most heaters in 30 minutes or less! Usage instructions are included as an info-graphic on this listing as well as with your kit.
Show more
9.5

Excellent

View offer on:

Show more
3

Honeywell
Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1" Cavity made by Resideo
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)
Show more
9.3

Excellent

View offer on:

Show more
4

Corro-Protec
Corro-Protec Powered Anode Rod for Water Heater, 20-Year Warranty, Eliminates Rotten Egg/Sulfur Smell within 24 hours, Stops Corrosion and Reduces Limescale, Electrical Anode Rod Made of Titanium

11% Off

9.5 worth the money

9.5 Easy installation

9.5 Aroma
Main highlights

STANDARD DEDICATED ANODE PORT INSTALLATION [standard for all water heater brands except Bradford White] - This 40-89-gallon model is designed for installation in a dedicated anode port located on top of your water heater. If you need to install your anode in the hot water outlet instead (no anode port or old anode stuck), select our anode for Bradford White tank and hot water outlet installation.
SAY GOODBYE TO ODORS - Eliminate your water heater odor problem by removing the rotten egg smell in hot water with our advanced powered anode rod.
SAFE WITH ALL WATER SOURCES, TREATMENT SYSTEMS & WATER HEATER TYPES - Corro-Protec anodes are safe with any water sources [city and well water], water treatment systems [water softeners, filtration, reverse osmosis, etc.], and water heater tanks [electric, gas, solar, hybrid and geothermal].
PERMANENT CORROSION PROTECTION - Designed to replace your 40-89-gallon water heater’s hex head anode rod, it can defend against any level of water hardness, including the increased corrosiveness of softened water.
MAXIMUM DURABILITY WITH TITANIUM - Forget about the constant replacement of aluminum anode rods or magnesium ones—our titanium-made powered anode rod is maintenance-free and is made of materials that do not disintegrate.
MAXIMIZE ENERGY SAVINGS - Our energy-efficient design combats sediment build-up, enhancing water quality and prolonging tank life while saving you money on energy bills.
INSTALLATION SIMPLIFIED - We’ve included comprehensive, easy-to-follow step-by-step instructions, ensuring a smooth installation process of the water heater anode rod and its accompanying long 12-foot cord power supply. 1" 1/16 and 1" 3/16 sockets will be required for removal and installation.
HASSLE-FREE HOT WATER - Corro-Protec’s powered anode rods are revolutionizing the water heater maintenance by preventing and solving numerous water heater problems.
CERTIFIED LEAD-FREE - Our titanium mixed-metal oxide rod is not just lead-free but also boasts the prestigious Gold Seal by the Water Quality Association for your safety and trust.
20-YEAR WARRANTY & QUALITY – Manufactured in Canada since 2006, our hot water heater anode rod is backed by a 20-year warranty, fully compatible with your water heater warranty under U.S. MMWA law, and significantly extends the life of your tank.
Show more
9.0

Excellent

View offer on:

Show more
5

Lamudo
9003542 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)

8.9 Easy installation

8.7 Temperature control

8.4 materials Quality

Why we love it

High compatibility with various water heater brands.

Includes all necessary components for easy installation.

12-month warranty ensures long-term reliability.
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.
Show more
8.7

Very Good

View offer on:

Show more
6

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

9.3 Easy installation

8.7 worth the money

8.0 Simple to clean
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.
Show more
8.6

Very Good

View offer on:

Show more
7

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

9.9 worth the money

9.9 Easy installation

9.9 Simple to take off
Main highlights

When choosing an RV anode rod, consider the nut type based on water conditions. Steel nuts suit softer water, while galvanized nuts offer better durability in harsh, mineral-rich environments. Also, pick the right rod size: Suburban models need a 9.25" x 3/4" NPT rod; Atwood models require a 4.5" x 1/2" NPT rod. Don’t overlook these essentials for your water heater!
Trailblazing USA-Based Small Business: Led by an owner with over a decade of experience in the water heater industry and extensive RV travel, we understand what it takes to provide the perfect RV water heater experience.
Tired of Stubborn Anode Rods or your RV Element ? Our Dual Hex Removal Tool is your new best friend. It makes maintenance a breeze, ensuring your water stays hot without the struggle. The only thing that should be tough on your trip is deciding which trail to hike!
The Ultimate RV Accessories Kit: Embark on every journey with confidence, thanks to our comprehensive RV Accessories Kit. It includes the Dual Hex Wrench for easy anode replacement and the Oneness 369 RV Water Heater Element, engineered with Incoloy 840 for corrosion resistance and high-temperature stability, ensuring reliable, enduring water heater performance.
Superior Corrosion Protection for Suburban Water Heaters: Designed specifically for Suburban water heaters, our RV water heater anode rod with a 9.25” x 3/4” NPT rod offers unmatched defense against rust and corrosion. It sacrifices itself to protect your tank, ensuring reliable hot water on every adventure.
Our Magnesium is composed of 99.9% pure magnesium. The Best Choice for RVing: Our magnesium anode rod offers superior protection for your RV hot water tank anode rod, especially in the varied water conditions often encountered on the road. Unlike aluminum or zinc, which can corrode quickly, magnesium is more effective at drawing corrosive elements away from the tank.
Feeling Chilly? Time to Upgrade! Your anode rod for hot water heater RV might be waving the white flag. Upgrade with our Suburban anode rod for RV water heater, perfect for models SW6DE, SW10DE, SW12DE—because nobody likes unexpected cold showers.
Don’t Let Corrosion Ruin Your Cozy Camper: A corroded camper anode rod water heater can turn your warm RV into a cold, unwelcoming space. Our RV anode rod acts as your knight in shining armor, battling tank corrosion to secure your comfort. Bonus: Your RV will be the warmest on the block!
Comprehensive Compatibility for Suburban Water Heaters: Our RV anode rod is an essential part of maintaining your Suburban water heater’s efficiency and is compatible with various RV brands. Whether you need crossroads RV replacement parts, heartland RV parts, keystone RV parts catalog, RV replacement parts catalog, or winnebago parts, this anode rod ensures your Suburban water heater remains in top condition.
Show more
8.5

Good

View offer on:

Show more
8

Rheem
Rheem AM39922-1 Water Heater Burner Assembly Kit - RG40S-40 Natural Gas

9.9 Easy installation

8.0 worth the money

Why we love it

Easy Installation

High Quality

Long Lasting
Main highlights

Key Features
Efficient heating with robust design, this RG40S-40 Natural Gas Burner Assembly Kit ensures consistent performance and durability for long-term use.

Ideal Use Cases
Perfect for residential water heaters requiring natural gas, excels in environments needing reliable hot water supply without frequent maintenance.

Customer Reviews Summary
Most praised for its easy installation process and significant improvement in water heater efficiency, leading to positive feedback from numerous users.
Show more
8.4

Good

View offer on:

Show more
9

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

8.2 Easy installation

8.0 worth the money

Why we love it

Durable value

Professional installation

Quality manufacturing
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.
Show more
8.3

Good

View offer on:

Show more
10

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

9.1 Easy installation

8.9 Simple to use

8.4 worth the money

Why we love it

Lead Free: Safe drinking water

Colored handles: Easy hot/cold identification

CSA Certified: Quality assured
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.
Show more
8.2

Good

View offer on:

Show more

Water Heater Parts of 2025

1

Chromex Tankless Water Heater Flush Kit with Certified Liquid Descaling Solution and 1/6HP Extra Strength Pump

Why we love it

2

Chromex Tankless Water Heater Flush Kit with Concentrated Vinegar, Dilutes to 4 Gallons and 1/6HP Extra Strength Pump

3

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

4

Corro-Protec Powered Anode Rod for Water Heater, 20-Year Warranty, Eliminates Rotten Egg/Sulfur Smell within 24 hours, Stops Corrosion and Reduces Limescale, Electrical Anode Rod Made of Titanium

5

9003542 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)

Why we love it

6

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

7

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

8

Rheem AM39922-1 Water Heater Burner Assembly Kit - RG40S-40 Natural Gas

Why we love it

9

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

Why we love it

10

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

Why we love it

Similar products on Amazon

Upgrade 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

$35.99

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

$37.98

Camco Automatic Temperature and Pressure Relief Valve with Extension Probe and Lever | Features an All Brass Body with a Stainless Steel Pressure Spring | (10473)

$15.90

Rheem SP20060 Electric Water Heater Tune-Up Kit, 2

$44.93

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

$42.99

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

$8.67

Sediment Buster - Water Heater Cleaning and Flushing Tool - Breaks up clogs, stirs and removes sediment and dirt from Electric or Gas Water Heaters - User Friendly

$39.99

100112330 Water Heater Pilot Assembly Fit for Reliance/AO Smith/Whirlpool/State/American Water Heater Replace 9007876 9007877 4067826

$26.99

DROMIX Water Heater Elements, 2 PCs Pack 4500W/240V, the Pack Including Element Wrench and Element Quick Change Tool, Fits Most Models of Dual Element Eletrical Water Heaters

$36.99

EWH-00 Electric Water Heater Thermostat for double element Heater, Includes 1x Upper Thermostat and 1x Lower Thermostat, Universal type for TOD & APCOM type, Fit for Most Electric Water Heaters

$26.59

Sign up and get exclusive special deals