---
title: "8557403 — $63K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/8557403"
last_updated: "2026-08-09T02:38:00.392Z"
locale: en
meta:
description: "Niche score 42/100 · $63K/yr market · 18K searches/yr · $15.70 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $63K/yr market · 18K searches/yr · $15.70 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "8557403 — $63K/yr Amazon US Niche (2026) - Flapen"
---
# **8557403**
**Skip it**
A concentrated shelf (top 5 take 82% of clicks) — this niche doesn't clear our bar today.
Market size 16Growth 19Conversion 100Competition 15Returns 46Price range 76Avg price 77Brand share 27Review moat 84Quality gap 53
**Conversion**
**Incredible****22.3%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****317.2**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$15.70**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.39–$35.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Returns**
**Okay****3.3%**
return rate — above 5% kills the launch gate
**Brand share**
**Okay****89%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-11.5%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$63K**
$63K/yr · 18K searches
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, 8557403 is a $63K/yr Amazon United States market (18K searches/yr). The top 5 brands hold 89% of demand. Verdict: Skip it — 42/100.
Data updated Jul 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **8557403 market data**
- **Units sold / yr**
- **3K–4K**
- avg 250–500/product
- **Revenue / yr**
- **$47K–$63K**
- units × avg price
- **Conversion rate**
- **22.3%**
- **Avg BSR**
- **#1,385**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **210 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**10**
**Top-5 brand share**
**89%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**5%**
- AMI PARTS50% - PartsBroz14% - Sikawai11% - SUUJI8% - puxyblue7% - Romalon6% - Open — no brand owns it (1 brand, 5%)
## **Demand**
Weekly Amazon search volume, last 47 weeks — -11.5% search growth over the last 90 days.
400300Sep '25Nov '25Dec '25Feb '26Mar '26May '26Jul '26
[**Open Trend **](https://flapen.com/research/us/appliances/8557403/trend)
## **Top 8557403 search terms**
- **8557403**7K/yr-16.0%19.5% conv. - **wp8557403**4K/yr-4.3%21.4% conv. - **280148**3K/yr-7.7%16.8% conv. - **8318314**3K/yr-14.2%11.0% conv. [**All search terms **](https://flapen.com/research/us/appliances/8557403/search-terms)
## **Top 8557403 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%10%$6K20%$13K30%$19K40%$25K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**280148 Thermal Cut Off Kit Includes 8557403 Thermostat 8318314**AMI PARTS**$14.80**4.4★480 rev](https://www.amazon.com/dp/B08CZC3FZD) [2**WP8557403 High Limit Thermostat Sensor Fit for Whirl-Pool Dryers**AMI PARTS**$9.80**4.4★158 rev](https://www.amazon.com/dp/B08CZHLMM2) [3**WP8557403 8557403 Dryer High Limit Thermostat for Whirlpool Kenmore Maytag**PartsBroz**$9.71**4.5★168 rev](https://www.amazon.com/dp/B0CCPN5SNT) [4**8557403 Dryer Thermostat&8318314 Thermal Fuse by MIFLUS**Sikawai**$13.98**4.2★100 rev](https://www.amazon.com/dp/B08D3HXQSS) [5**280148 Dryer Thermal Cut Off Kit Includes 8557403 Thermostat 8318314 Thermal Fuse Replacement Part Compatible with Whirlpool Dryers Replaces for 280148VP AP3874047 1175772 PS991443 EAP991443 WP8557403**SUUJI**$10.07**4.6★83 rev](https://www.amazon.com/dp/B0C85B48KY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**WP8557403 8557403 Dryer High Limit Thermostat for Whirlpool Kenmore Maytag**PartsBroz**$9.71**168 rev2y ago](https://www.amazon.com/dp/B0CCPN5SNT) [**280148 Dryer Thermal Cut Off Kit Includes 8557403 Thermostat 8318314 Thermal Fuse Replacement Part Compatible with Whirlpool Dryers Replaces for 280148VP AP3874047 1175772 PS991443 EAP991443 WP8557403**SUUJI**$10.07**83 rev3y ago](https://www.amazon.com/dp/B0C85B48KY) [**8544771 Dryer Heating Element Fit for Whirlpool Kenmore Maytag 8557403 High Limit Thermostat 8318314 Thermal Fuse 280148 Thermal Cut Off Kit wp8544771 AP6013115 PS11746337 By puxyblue**puxyblue**$20.83**225 rev4y ago](https://www.amazon.com/dp/B09B3HLP4S) [**BlueStars 8544771 WED9200SQ0 Dryer Heating Element 280148 (8557403 & 8318314) Thermal Cut Off Kit 3392519 Thermal Fuse 8577274 Thermistor For Whirlpool WED9550WW1 WED9400SW2 WED7300XW0 Kenmore Dryer**BlueStars**$35.58**358 rev5y ago](https://www.amazon.com/dp/B08ZN3X5QF) [**8557403 Dryer Thermostat&8318314 Thermal Fuse by MIFLUS**Sikawai**$13.98**100 rev5y ago](https://www.amazon.com/dp/B08D3HXQSS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**280148 Dryer Thermostat and Thermal Fuse Kit Replaces 8557403 8318314 AP3874047 PS991443 Compatible with Whirlpool Maytag Kenmore Dryers Fix No Heat & Overheating Issues 1-Year Warranty by Romalon**Romalon**$12.69**4.5★**▲ 78%**](https://www.amazon.com/dp/B082SQP4TK) [**WP8557403 High Limit Thermostat Sensor Fit for Whirl-Pool Dryers**AMI PARTS**$9.80**4.4★**▲ 76%**](https://www.amazon.com/dp/B08CZHLMM2) [**8544771 Dryer Heating Element Fit for Whirlpool Kenmore Maytag 8557403 High Limit Thermostat 8318314 Thermal Fuse 280148 Thermal Cut Off Kit wp8544771 AP6013115 PS11746337 By puxyblue**puxyblue**$20.83**4.5★**▲ 33%**](https://www.amazon.com/dp/B09B3HLP4S) [**BlueStars 279973 Dryer Thermal Cut-Off Fuse Kit - Compatible with Whirlpool Kenmore Maytag KitchenAid Electric Dryer Replacement Fuse Parts - Replaces 8318314 3391913 AP3094323 PS334387 279973VP**BlueStars**$8.39**4.5★**▲ 30%**](https://www.amazon.com/dp/B0744GRXFK) [**8557403 Dryer Thermostat&8318314 Thermal Fuse by MIFLUS**Sikawai**$13.98**4.2★**▲ 11%**](https://www.amazon.com/dp/B08D3HXQSS)
**~~View all trending →~~**
## **What buyers say about 8557403**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**33%
*“Exact Fit”*
**Functionality-Overall**14%
*“now my dryer works better than ever”*
**Advertised Vs Actual Product**14%
*“As advertised and easy to install”*
**Value For Money**13%
*“much cheaper than the whirlpool kit”*
**Heating**10%
*“Worked perfectly in fixing the heating element in my dryer”*
**Correct Contents**5%
*“exact part”*
**Ease Of Use**5%
*“Easy to replace”*
**Quality-Overall**2%
*“Excellent Price and Quality”*
### **What buyers complain about **
**Durability**37%
*“A little over two months and is dead”*
**Quality-Overall**20%
*“This was clearly a component quality issue”*
**Heating**13%
*“eventually blowing the thermal fuse”*
**Size-Overall**7%
*“Just created some confusion at first fitting”*
**Value For Money**3%
*“Cheap part”*
**Design-Overall**3%
*“Poorly constructed”*
**Natural Resource Wastage**3%
*“Waste of money”*
**Unsustainable Design**3%
*“Poorly manufactured”*
**Assembly/Installation**2%
*“Installation was a bit awkward due to the dryer design”*
### **Top return reasons **
**Defective Material/Parts**24%
**Functionality-Overall**19%
**Heating**18%
**Size-Overall**13%
**Compatibility-Overall**8%
**Advertised Vs Actual Product**4%
**Durability**4%
**Quality-Overall**2%
**Assembly/Installation**1%
**Connectivity-Overall**1%
## **Common questions**
- **Is 8557403 profitable to sell on Amazon United States?**
- The niche generates $63K/yr across 10 tracked products. 90-day search growth is -11.5%. Flapen's verdict: Skip it (42/100).
- **How competitive is the 8557403 niche?**
- 7 brands and 10 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 89% of demand.
- **What do buyers complain about in 8557403?**
- Top complaints mined from reviews: Durability, Quality-Overall, Heating. The return rate is 3.3%.
- **What does it cost to enter the 8557403 niche?**
- Listings span $8.39–$35.58; the average listing price is $15.70 (sweet spot $15–$100). The average incumbent carries 317 reviews — the moat a new listing must climb.
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