Is water heater replacement parts profitable to sell on Amazon United States?

The niche generates $310K/yr across 37 tracked products. 4 of 10 products launched in the last 360 days are still selling. 90-day search growth is -22.7%. Flapen's verdict: Worth a look (52/100).

How competitive is the water heater replacement parts niche?

26 brands and 128 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 56% of demand.

What do buyers complain about in water heater replacement parts?

Top complaints mined from reviews: Durability, Functionality-Overall, Defective Material/Parts. The return rate is 6.7% — above our launch gate.

When does demand for water heater replacement parts peak?

Demand peaks in Jan–Feb; the busiest month runs 1.8× the quietest.

What does it cost to enter the water heater replacement parts niche?

Listings span $17.89–$237.05; the average listing price is $69.64 (sweet spot $15–$100). The average incumbent carries 289 reviews — the moat a new listing must climb.

water heater replacement parts

Worth a look

Shows a thin review moat (289 avg reviews), but soft demand (-22.7% this quarter) keeps it on the watch list.

Review moat

Great289.38

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$69.64

avg listing price — sweet spot $15–$100

Brand share

Great56%

top-5 brand share — no brand owns this niche

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Competition

Good42%

top-5 click share — leaders hold, buyers still browse

Market size

Good$310K

$310K/yr · 166K searches

Price range

Okay$17.89–$237.05

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Okay2.7%

search→purchase rate — share of searches ending in a sale

Returns

Bad6.7%

return rate — above 5% kills the launch gate

Growth

Bad-22.7%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand High Returns High Price

According to Flapen's Amazon United States niche tracking, water heater replacement parts is a $310K/yr Amazon United States market (166K searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Jan–Feb. Verdict: Worth a look — 52/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

water heater replacement parts market data

Units sold / yr: 3K–3K; avg 0–100/product
Revenue / yr: $174K–$209K; units × avg price
Conversion rate: 2.7%
Avg BSR: #6,797
Page quality: 0%
Prime: 89%
Sponsored: 86%
Out of stock: 0.0%
Avg brand age: 40 months
Avg seller age: 164 days

Competition & brand share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

26 rising

Sellers

128

Top-5 brand share

56%

Top 20: 96%

Top-5 click share

42%

Top 20: 84%

Open market

38%

Rheem16%
JURPLIX15%
Pontuss9%
Hoeine9%
Enruieer8%
Inchoco6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -22.7% search growth over the last 90 days.

Peak months: Jan, Feb · busiest ÷ quietest = 1.8×

Open Trend

Top water heater replacement parts search terms

rheem water heater parts32K/yr -19.0%1.7% conv.
water heater replacement parts28K/yr -29.8%0.3% conv.
richmond water heater parts20K/yr -23.1%2.0% conv.
rheem parts by model number22K/yr -41.9%0.2% conv.
rheem pilot assembly kit6K/yr +45.4%5.2% conv.
water heater parts8K/yr -3.6%0.5% conv.
rheem replacement parts5K/yr -1.5%0.5% conv.
ge water heater parts5K/yr -18.1%1.4% conv.
rheem water heater replacement parts4K/yr -27.3%1.5% conv.
gas water heater parts5K/yr -31.2%0.7% conv.

All search terms

Top water heater replacement parts products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SP21058 SP20824 Pilot Assembly for Water Heater Parts with Thermopile & Sparker

JURPLIX$41.124.4★41 rev

Upgraded SP20075 Pilot and Igniter Assembly Compatible with Rheem Water Heater Pilot Assembly PROTECH GE Richmond Water Heater Pilot Assembly Water Heater Pilot Assembly for Natural Gas

Pontuss$26.064.2★221 rev

Hoeine SP21058 Pilot Assembly Kit with Thermopile for Rheem Water Heater

Hoeine$44.314.0★40 rev

Upgraded SP20075 Pilot and Igniter Assembly Replacement Kit Compatible with Rheem GE Richmond Water Heater Pilot Assembly Natural Gas Water Heater Parts Including Burner Door Gasket

Inchoco$25.964.3★141 rev

Rheem SP20867C Combination Gas Control Replacement Kit Natural Gas (NG) Water Heater Valve OEM Thermostat & Gas Regulator

Rheem$237.053.0★29 rev

Newest

by launch date

SP21058 SP20824 Pilot Assembly for Water Heater Parts with Thermopile & Sparker

JURPLIX$41.1241 rev

7mo ago

SP21058 Pilot Assembly Replacement Kit for Rheem Water Heater Parts Compatible with Select Rheem & Ruud Gas Water Heaters Complete Water Heater Pilot Burner Assembly Thermopile Thermocouple etc.

YDHFTYS$61.4413 rev

7mo ago

Water Heater Pilot Assembly Fit for Rheem Ruud Richmond SP20754 SP21058 SP21059 SP20800 NG/LP Universal Burner Ignition Replacement Kit with Thermopile and Sparker

Quwfesudy$39.957 rev

9mo ago

SP21058 SP20824 Pilot Burner Assembly Replacement Kit

Sejaede$41.337 rev

10mo ago

Hoeine SP21058 Pilot Assembly Kit with Thermopile for Rheem Water Heater

Hoeine$44.3140 rev

10mo ago

What buyers say about water heater replacement parts

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall21%

“Exact Fit”

Assembly/Installation16%

“Easy install”

Value For Money13%

“Worth the purchase”

Advertised Vs Actual Product9%

“As advertised”

Quality-Overall9%

“good quality”

Efficiency9%

“Works great”

Ease Of Use4%

“Very simple to use”

Instructions/User Manual/Troubleshooting2%

“Easy to follow instructions”

Correct Contents2%

“This replacement pilot assembly kit arrived with all the parts neatly organized and clearly labeled”

Socket/Port/Plug2%

“Functional, socket worked”

What buyers complain about

Durability15%

“Product stopped working after only 2 months of use”

Functionality-Overall13%

“Did not work”

Defective Material/Parts10%

“It didn't work, wrong part, defective”

Quality-Overall8%

“Product is junk”

Size-Overall7%

“the stem is too short to thread in”

Assembly/Installation7%

“I received a faulty assembly”

Advertised Vs Actual Product6%

“Doesn't look like the picture”

Leak-Proof4%

“leaks gas when connected to the gas control valve”

Compatibility-Overall3%

“Not compatible”

Product Condition2%

“Item arrived previously opened”

Top return reasons

Size-Overall26%

Compatibility-Overall15%

Defective Material/Parts14%

Functionality-Overall11%

Advertised Vs Actual Product10%