Is 5221er1003s profitable to sell on Amazon United States?

The niche generates $53K/yr across 10 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +7.7%. Flapen's verdict: Skip it (45/100).

How competitive is the 5221er1003s niche?

9 brands and 28 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in 5221er1003s?

Top complaints mined from reviews: Durability, Size-Overall, Leak-Proof. The return rate is 4.6%.

What does it cost to enter the 5221er1003s niche?

Listings span $20.32–$76.85; the average listing price is $32.26 (sweet spot $15–$100). The average incumbent carries 391 reviews — the moat a new listing must climb.

5221er1003s

Skip it

A small market ($53K/yr) — this niche doesn't clear our bar today.

Conversion

Incredible13.3%

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

Avg price

Incredible$32.26

avg listing price — sweet spot $15–$100

Price range

Incredible$20.32–$76.85

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

Review moat

Great390.5

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Growth

Okay+7.7%

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

Returns

Okay4.6%

return rate — above 5% kills the launch gate

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Market size

Bad$53K

$53K/yr · 12K searches

Competition

Bad85%

top-5 click share — a locked-up shelf

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, 5221er1003s is a $53K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 45/100.

Data updated Jul 5, 2026 · scored weekly · How we score niches

5221er1003s market data

Units sold / yr: 2K–2K; avg 100–250/product
Revenue / yr: $48K–$65K; units × avg price
Conversion rate: 13.3%
Avg BSR: #2,922
Page quality: 0%
Prime: 100%
Sponsored: 80%
Out of stock: 5.1%
Avg brand age: 17 months
Avg seller age: 176 days

Competition & brand share

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

85%

Top 20: 100%

Open market

Gartu42%
LG25%
inruwo8%
Cusvivid7%
LinkEZ6%
BTROVIA5%
Open — no brand owns it (3 brands, 7%)

Demand

Weekly Amazon search volume, last 43 weeks — +7.7% search growth over the last 90 days.

Open Trend

Top 5221er1003s 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★)1 product missing review or click data not plotted

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

5221ER1003S Washer Water Inlet Valve Compatible with kenmore: WKE100HVA WM4000HBA WM3400CW WM4000HWA WM3470CW etc Replace 4869496 AP6798394 PS12587936 EAP12587936 PD00057211 etc

Gartu$23.514.1★52 rev

LG 5221ER1003S Washer Water Inlet Valve Assembly

LG$76.854.4★58 rev

5221ER1003S Washing Machine Cold Water Inlet Valve fit for LG Washer Replace 4869496 AP6798394 PS12587936 EAP12587936 PD00057211

inruwo$22.143.4★11 rev

5221ER1003S Washer Water Inlet Valve Assembly for LG Kenmore

Cusvivid$26.400.0★0 rev

LG Valve 5221ER1003A and 5220FR2075L

LinkEZ$24.304.6★1,302 rev

Newest

by launch date

5221ER1003S Washer Water Inlet Valve Assembly for LG Kenmore

Cusvivid$26.400 rev

2mo ago

5221ER1003S Washer Water Inlet Valve Assembly Compatible with LG Kenmore Washing Machines Replace for 4869496 AP6798394 PS12587936 EAP12587936 PD00057211

Lmkai$25.584 rev

10mo ago

AIYOYOLIFE Washer Water Inlet Valve Compatible with LG Washing Machine WM3400CW WM3460CV WM3500CW WKEX200HBA WKEX200HWA Replace#:5221ER1003S 4869496 AP6798394 PS12587936 EAP12587936 PD00057211

AIYOYOLIFE$20.329 rev

12mo ago

5221ER1003S Washer Water Inlet Valve Compatible with kenmore: WKE100HVA WM4000HBA WM3400CW WM4000HWA WM3470CW etc Replace 4869496 AP6798394 PS12587936 EAP12587936 PD00057211 etc

Gartu$23.5152 rev

1y ago

5221ER1003S Washer Water Inlet Valve Fits for LG

BTROVIA$21.324 rev

1y ago

What buyers say about 5221er1003s

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

What buyers love

Size-Overall27%

“Perfect Fit”

Value For Money13%

“Good price”

Quality-Overall10%

“Great quality,, easy installation, it fit great on my LG washer, and the best part, the price fits perfectly within anyone's budget”

Leak-Proof7%

“No leaks”

Functionality-Overall7%

“Direct replacement works good so far”

Ease Of Use6%

“Easy and quick”

Maintenance And Repair6%

“Easy replacement”

Efficiency4%

“Works well”

Compatibility-Overall3%

“compatible with original part number”

Advertised Vs Actual Product3%

“Works great as expected”

What buyers complain about

Durability18%

“It doesnt last a week”

Size-Overall13%

“This didn't fit my washing machine”

Leak-Proof9%

“was in a pickle, as the OEM failed and leaking, found a replacement which also failed at install”

Defective Material/Parts7%

“Product was damaged”

Advertised Vs Actual Product7%

“The manufacturer's listing on Amazon even said it would fit my model. It didn't”

Socket/Port/Plug6%

“Part does not fit electrical connectors or water connectors”

Water Resistance5%

“This product does not regulate water”

Compatibility-Overall3%

“it was not compatible with my newer machine”

Functionality-Overall3%

“didn't work”

Noise Level3%

“It has a VERY LOUD high pitch shrill sound when water is running through it”

Top return reasons

Size-Overall34%

Defective Material/Parts19%

Advertised Vs Actual Product11%

Compatibility-Overall11%

Leak-Proof5%

Functionality-Overall5%

Connectivity-Overall3%

Product Condition3%

Value For Money2%

Assembly/Installation2%

Common questions

Is 5221er1003s profitable to sell on Amazon United States?: The niche generates $53K/yr across 10 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +7.7%. Flapen's verdict: Skip it (45/100).
How competitive is the 5221er1003s niche?: 9 brands and 28 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in 5221er1003s?: Top complaints mined from reviews: Durability, Size-Overall, Leak-Proof. The return rate is 4.6%.
What does it cost to enter the 5221er1003s niche?: Listings span $20.32–$76.85; the average listing price is $32.26 (sweet spot $15–$100). The average incumbent carries 391 reviews — the moat a new listing must climb.