---
title: "Wd21x31902 — $153K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/wd21x31902"
last_updated: "2026-08-09T06:58:11.052Z"
locale: en
meta:
description: "Niche score 32/100 · $153K/yr market · 14K searches/yr · $74.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 32/100 · $153K/yr market · 14K searches/yr · $74.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Wd21x31902 — $153K/yr Amazon US Niche (2026) - Flapen"
---
# **wd21x31902**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 33Growth 17Conversion 97Competition 0Returns 10Price range 62Avg price 84Brand share 0Review moat 97Quality gap 19
**Conversion**
**Incredible****14.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Incredible****65**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$74.36**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$44.25–$133.55**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$153K**
$153K/yr · 14K searches
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-16.0%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****9.2%**
return rate — above 5% kills the launch gate
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, wd21x31902 is a $153K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan. Verdict: Skip it — 32/100.
Data updated Jul 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **wd21x31902 market data**
- **Units sold / yr**
- **2K–3K**
- avg 500–750/product
- **Revenue / yr**
- **$149K–$186K**
- units × avg price
- **Conversion rate**
- **14.9%**
- **Avg BSR**
- **#20,397**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **67%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **20 months**
- **Avg seller age**
- **197 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▼falling
**Sellers**
**8**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- FrameFirm53% - Generic38% - GE9%
## **Demand & seasonality**
Weekly Amazon search volume, last 108 weeks — -16.0% search growth over the last 90 days.
400300Spike '24Black Friday '24Holiday '24Spike '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/appliances/wd21x31902/trend)
## **Top wd21x31902 search terms**
- **wd21x31902c**7K/yr-35.5%12.9% conv. - **ge dishwasher user interface board**3K/yr+7.2%0.6% conv. - **wd21x31902**4K/yr+11.9%11.3% conv. [**All search terms **](https://flapen.com/research/us/appliances/wd21x31902/search-terms)
## **Top wd21x31902 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.
0%15%$23K30%$46K45%$69K60%$92K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 3 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**WD21X31902C WD21X31902 WD21X23462 Dishwasher User Interface Control Board**FrameFirm**$45.28**4.6★135 rev](https://www.amazon.com/dp/B0DPG592YF) [2**WD21X31902C dishwasher Control Board fit for GE dishwasher**Generic**$44.25**4.5★57 rev](https://www.amazon.com/dp/B0D232XMGK) [3**GE Dishwasher User Interface Control Board - OEM Replacement (WD21X31902)**GE**$133.55**5.0★3 rev](https://www.amazon.com/dp/B0FVHSTPD5)
### **Newest**
by launch date
[**GE Dishwasher User Interface Control Board - OEM Replacement (WD21X31902)**GE**$133.55**3 rev8mo ago](https://www.amazon.com/dp/B0FVHSTPD5) [**WD21X31902C WD21X31902 WD21X23462 Dishwasher User Interface Control Board**FrameFirm**$45.28**135 rev1y ago](https://www.amazon.com/dp/B0DPG592YF) [**WD21X31902C dishwasher Control Board fit for GE dishwasher**Generic**$44.25**57 rev2y ago](https://www.amazon.com/dp/B0D232XMGK)
### **Trending**
90-day click momentum
[**GE Dishwasher User Interface Control Board - OEM Replacement (WD21X31902)**GE**$133.55**5.0★**▲ 25%**](https://www.amazon.com/dp/B0FVHSTPD5) [**WD21X31902C dishwasher Control Board fit for GE dishwasher**Generic**$44.25**4.5★**— 2%**](https://www.amazon.com/dp/B0D232XMGK) [**WD21X31902C WD21X31902 WD21X23462 Dishwasher User Interface Control Board**FrameFirm**$45.28**4.6★**— 5%**](https://www.amazon.com/dp/B0DPG592YF)
## **What buyers say about wd21x31902**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**21%
*“Excellent Value Over OEM”*
**Quality-Overall**16%
*“Great product”*
**Advertised Vs Actual Product**13%
*“Got the job done”*
**Size-Overall**13%
*“Perfect fit”*
**Compatibility-Overall**8%
*“Compatible on my GE dishwasher”*
**Ease Of Use**8%
*“If youre handy, easy job”*
**Functionality-Overall**5%
*“seems to work ok so far”*
**Durability**5%
*“Working well several months after replacing”*
**Maintenance And Repair**5%
*“Easy fix”*
### **What buyers complain about **
**Noise Level**23%
*“We would hear the dishwasher beep when no one was near it”*
**Assembly/Installation**14%
*“Once that was done I disconnected the wire from the lower motherboard”*
**Durability**14%
*“Blew out after a month”*
**Defective Material/Parts**9%
*“Fixed their dumb broken one”*
**Functionality-Overall**9%
*“Did not work”*
**Touch/Button Controls**9%
*“You have to hold two buttons down for 5 seconds”*
**Instructions/User Manual/Troubleshooting**9%
*“that the user interface board in the door was the problem”*
**Connectivity-Overall**5%
*“They made a long video of disconnecting the whole machine from electric, water supply, water drain, etc”*
### **Top return reasons **
**Functionality-Overall**22%
**Defective Material/Parts**19%
**Compatibility-Overall**16%
**Touch/Button Controls**13%
**Size-Overall**9%
**Value For Money**4%
**Connectivity-Overall**4%
**Assembly/Installation**3%
**Durability**3%
**Maintenance And Repair**2%
## **Common questions**
- **Is wd21x31902 profitable to sell on Amazon United States?**
- The niche generates $153K/yr across 3 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.0%. Flapen's verdict: Skip it (32/100).
- **How competitive is the wd21x31902 niche?**
- 3 brands and 8 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in wd21x31902?**
- Top complaints mined from reviews: Noise Level, Assembly/Installation, Durability. The return rate is 9.2% — above our launch gate.
- **When does demand for wd21x31902 peak?**
- Demand peaks in Jan; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the wd21x31902 niche?**
- Listings span $44.25–$133.55; the average listing price is $74.36 (sweet spot $15–$100). The average incumbent carries 65 reviews — the moat a new listing must climb.
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