---
title: "Stihl Fs90r Carburetor — $59K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/stihl-fs90r-carburetor"
last_updated: "2026-08-09T22:31:13.629Z"
locale: en
meta:
description: "Niche score 55/100 · $59K/yr market · 22K searches/yr. A concentrated shelf (top 5 take 92% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $59K/yr market · 22K searches/yr. A concentrated shelf (top 5 take 92% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Stihl Fs90r Carburetor — $59K/yr Amazon US Niche (2026) - Flapen"
---
# **stihl fs90r carburetor**
**Worth a look**
Shows searches that convert (16.7% search→purchase), but a concentrated shelf (top 5 take 92% of clicks) keeps it on the watch list.
Market size 15Growth 95Conversion 98Competition 7Returns 93Price range 61Avg price 77Brand share 21Review moat 75Quality gap 58
**Conversion**
**Incredible****16.7%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Incredible****+120.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$15.90**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****504.29**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$12.62–$18.70**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$59K**
$59K/yr · 22K searches
**Competition**
**Bad****92%**
top-5 click share — a locked-up shelf
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, stihl fs90r carburetor is a $59K/yr Amazon United States market (22K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 55/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **stihl fs90r carburetor market data**
- **Units sold / yr**
- **3K–4K**
- avg 500–750/product
- **Revenue / yr**
- **$48K–$64K**
- units × avg price
- **Conversion rate**
- **16.7%**
- **Avg BSR**
- **#530**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **317 days**
## **Competition & brand share**
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**12**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**92%**
Top 20: 100%
**Open market**
**4%**
- Hipa49% - HUZTL21% - karvayna10% - Kendwin7% - Ferilter5% - Harbot5% - Open — no brand owns it (1 brand, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +120.1% search growth over the last 90 days.
2K1KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 17.6×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/stihl-fs90r-carburetor/trend)
## **Top stihl fs90r carburetor search terms**
- **stihl fs90r carburetor**12K/yr+145.3%12.9% conv. - **fs90r carburetor**5K/yr+125.6%16.2% conv. - **stihl fs90 carburetor**2K/yr+165.7%13.4% conv. - **stihl ht101 carburetor**3K/yr+4.6%15.3% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/stihl-fs90r-carburetor/search-terms)
## **Top stihl fs90r carburetor 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%$9K30%$18K45%$26K60%$35K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hipa FS90R Carburetor for STIHL FS90 HT101 FS110R FS90 KM110R FS100RX KM90R FS110 FS 90R HT 101 FS 110 FS 110R FC90 HT131 HL100K HL100 FS100 HT100 FS87 HL90 Trimmer C1Q-S174**Hipa**$18.55**4.5★1,318 rev](https://www.amazon.com/dp/B06WWJXLFL) [2**HUZTL FS 90 R Carburetor kit for Stihl FS90R FS90 FS110R FS100 KM90R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weed Eater C1Q-S174 Carb**HUZTL**$18.70**4.6★575 rev](https://www.amazon.com/dp/B07XJMQ8HJ) [3**Karvayna FS90R Carburetor for STIHL FS90R FS90 FS110R FS110 FS100RX FS100 KM90R KM110R HT101 HT100 HL100 HL100K FC90 FS110RX HT 101 FS 90 90R 110R Carb Trimmer Parts C1Q-S174 C1Q-S110 Tune Up Kit**karvayna**$17.95**4.4★61 rev](https://www.amazon.com/dp/B0FQ483M5T) [4**Kendwin FS90R Carburetor for STIHL FS90 FS 90R FS110R FS100 KM90R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weedeater Replace C1Q-S174 41801200611**Kendwin**$12.62**3.8★15 rev](https://www.amazon.com/dp/B0G32KNKL3) [5**FS90R FS110 FS110R Carburetor for STIHL HT101 FS90 FS130 FS130R FS100 KM110R KM130 HL100 HT100 FS87 FS100R KM90 KM90R KM100 KM110 FC90 FC95 FC100 FC110 HL90 Trimmer Weed Eater Pole Saw Carb**Ferilter**$16.23**4.5★343 rev](https://www.amazon.com/dp/B07QMDM2PN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kendwin FS90R Carburetor for STIHL FS90 FS 90R FS110R FS100 KM90R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weedeater Replace C1Q-S174 41801200611**Kendwin**$12.62**15 rev7mo ago](https://www.amazon.com/dp/B0G32KNKL3) [**Karvayna FS90R Carburetor for STIHL FS90R FS90 FS110R FS110 FS100RX FS100 KM90R KM110R HT101 HT100 HL100 HL100K FC90 FS110RX HT 101 FS 90 90R 110R Carb Trimmer Parts C1Q-S174 C1Q-S110 Tune Up Kit**karvayna**$17.95**61 rev10mo ago](https://www.amazon.com/dp/B0FQ483M5T) [**HUZTL FS 90 R Carburetor kit for Stihl FS90R FS90 FS110R FS100 KM90R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weed Eater C1Q-S174 Carb**HUZTL**$18.70**575 rev6y ago](https://www.amazon.com/dp/B07XJMQ8HJ) [**FS90R FS110 FS110R Carburetor for STIHL HT101 FS90 FS130 FS130R FS100 KM110R KM130 HL100 HT100 FS87 FS100R KM90 KM90R KM100 KM110 FC90 FC95 FC100 FC110 HL90 Trimmer Weed Eater Pole Saw Carb**Ferilter**$16.23**343 rev7y ago](https://www.amazon.com/dp/B07QMDM2PN) [**Harbot FS90R Carburetor for Stihl FS110R FS100 FS90 KM90R FS 90 R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weedeater Replace C1Q-S174 4180 120 0611**Harbot**$13.71**648 rev7y ago](https://www.amazon.com/dp/B07Q4QCXF7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kendwin FS90R Carburetor for STIHL FS90 FS 90R FS110R FS100 KM90R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weedeater Replace C1Q-S174 41801200611**Kendwin**$12.62**3.8★**▲ 89%**](https://www.amazon.com/dp/B0G32KNKL3) [**Karvayna FS90R Carburetor for STIHL FS90R FS90 FS110R FS110 FS100RX FS100 KM90R KM110R HT101 HT100 HL100 HL100K FC90 FS110RX HT 101 FS 90 90R 110R Carb Trimmer Parts C1Q-S174 C1Q-S110 Tune Up Kit**karvayna**$17.95**4.4★**▲ 15%**](https://www.amazon.com/dp/B0FQ483M5T) [**Hipa FS90R Carburetor for STIHL FS90 HT101 FS110R FS90 KM110R FS100RX KM90R FS110 FS 90R HT 101 FS 110 FS 110R FC90 HT131 HL100K HL100 FS100 HT100 FS87 HL90 Trimmer C1Q-S174**Hipa**$18.55**4.5★**— 5%**](https://www.amazon.com/dp/B06WWJXLFL) [**Powtol FS 90 R Carburetor for STIHL FS90R FS90 FS110R FS110 FS87 FS100 HL90 HL95 HL100 HT100 HT101 KM90 KM100 KM110 KM110R SP90 Trimmer Replace C1Q-S174 4180 120 0611**Powtol**$13.52**4.5★**— 3%**](https://www.amazon.com/dp/B077QLKB1P) [**HUZTL FS 90 R Carburetor kit for Stihl FS90R FS90 FS110R FS100 KM90R KM90 FS100RX FS110 KM110R HT100 HT101 Trimmer Weed Eater C1Q-S174 Carb**HUZTL**$18.70**4.6★**— 3%**](https://www.amazon.com/dp/B07XJMQ8HJ)
**~~View all trending →~~**
## **What buyers say about stihl fs90r carburetor**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**21%
*“Easy install”*
**Value For Money**21%
*“Great price”*
**Size-Overall**16%
*“Fit great”*
**Quality-Overall**14%
*“just beautifully made”*
**Advertised Vs Actual Product**7%
*“Better than expected”*
**Durability**4%
*“Been going strong for couple years”*
**Adjustability/Rotatability/Reclining**4%
*“Its easy to adjust everything if you need to”*
**Product Condition**4%
*“Runs like it did new”*
**Maintenance And Repair**2%
*“Easy repair with this kit”*
**Instructions/User Manual/Troubleshooting**2%
*“Great instructions, easy to follow”*
### **What buyers complain about **
**Quality-Overall**26%
*“Quality control issue”*
**Functionality-Overall**18%
*“Carburetor does not work very good”*
**Leak-Proof**17%
*“Leaks”*
**Filtration**9%
*“Air filter in not correct”*
**Adjustability/Rotatability/Reclining**9%
*“Its not perfect and needs adjusting,”*
**Assembly/Installation**5%
*“Primer bulb was super stiff didnt figure it out until after it was installed”*
**Durability**3%
*“is so cheaply made that it started falling apart”*
**Ease Of Use**2%
*“start became a little more difficult”*
### **Top return reasons **
**Functionality-Overall**29%
**Size-Overall**21%
**Defective Material/Parts**12%
**Leak-Proof**11%
**Advertised Vs Actual Product**7%
**Maintenance And Repair**5%
**Mechanism Issues**4%
**Metal Quality**1%
**Add-Ons/Attachments**1%
**Connectivity-Overall**1%
## **Common questions**
- **Is stihl fs90r carburetor profitable to sell on Amazon United States?**
- The niche generates $59K/yr across 7 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +120.1%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the stihl fs90r carburetor niche?**
- 7 brands and 12 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in stihl fs90r carburetor?**
- Top complaints mined from reviews: Quality-Overall, Functionality-Overall, Leak-Proof. The return rate is 1.1%.
- **When does demand for stihl fs90r carburetor peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 17.6× the quietest.
- **What does it cost to enter the stihl fs90r carburetor niche?**
- Listings span $12.62–$18.70; the average listing price is $15.90 (sweet spot $15–$100). The average incumbent carries 504 reviews — the moat a new listing must climb.
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