---
title: "Fs19764 — $108K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/fs19764"
last_updated: "2026-08-11T03:39:08.413Z"
locale: en
meta:
description: "Niche score 50/100 · $108K/yr market · 8K searches/yr · $70.52 avg price. Soft demand (-22.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $108K/yr market · 8K searches/yr · $70.52 avg price. Soft demand (-22.2% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Fs19764 — $108K/yr Amazon US Niche (2026) - Flapen"
---
# **fs19764**
**Worth a look**
Shows searches that convert (19.6% search→purchase), but soft demand (-22.2% this quarter) keeps it on the watch list.
Market size 26Growth 14Conversion 100Competition 30Returns 95Price range 68Avg price 86Brand share 45Review moat 98Quality gap 28
**Conversion**
**Incredible****19.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Incredible****30.11**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Incredible****1.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$70.52**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$15.98–$140.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****67%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$108K**
$108K/yr · 8K searches
**Growth**
**Bad****-22.2%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, fs19764 is a $108K/yr Amazon United States market (8K searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fs19764 market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$53K–$71K**
- units × avg price
- **Conversion rate**
- **19.6%**
- **Avg BSR**
- **#2,855**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **67%**
- **Out of stock**
- **1.6%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **137 days**
## **Competition & brand share**
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **—flat
**Sellers**
**27**
**Top-5 brand share**
**78%**
Top 20: 100%
**Top-5 click share**
**67%**
Top 20: 100%
**Open market**
**17%**
- Fleetguard42% - TONYCO14% - YIFALAI9% - AULDAY7% - BANGTE6% - Cummins5% - Open — no brand owns it (6 brands, 17%)
## **Demand**
Weekly Amazon search volume, last 12 weeks — -22.2% search growth over the last 90 days.
175125Apr '26May '26May '26May '26Jun '26Jun '26
[**Open Trend **](https://flapen.com/research/us/automotive/fs19764/trend)
## **Top fs19764 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%$11K20%$22K30%$32K40%$43K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**FS19764 Fleetguard Fuel Filter for Cummins ISX15 ISX12**Fleetguard**$36.05**5.0★14 rev](https://www.amazon.com/dp/B07N87VRGB) [2**Fleetguard FS19764**Fleetguard**$34.06**4.8★303 rev](https://www.amazon.com/dp/B00A32XEC6) [3**4 Pack of FS19764 Fuel Filter Water Separator Replaces FS19765 FS19763 FS19766 P550851 PF7930 21737499 85120233 PF7928 P550849 L9765 L9763FXL 33763 PF9814 Fits Cummins X12 X15 ISX12 ISX15**TONYCO**$59.59**5.0★4 rev](https://www.amazon.com/dp/B0DRHN4JWK) [4**FS19764 Fuel Filter Water Separator Replaces FS19765 FS19763 FS19766 P550851 PF7930 WF10005 21737499 85120233 PF7928 P550849 L9765 L9763FXL 33763 PF9814 Fits Cummins X12 X15 ISX12 ISX15**YIFALAI**$19.66**4.9★21 rev](https://www.amazon.com/dp/B0CPDXG6YQ) [5**BANGTE 6/Pack FS19764 Fuel/Water Separator Replace For CUMMINS ISX ISL9 ISX15 ISX12 X12 X15 ISX11.9 Diesel Engine Caterpillar CT13 2015-2016 CT15 13-16 Diesel Engine biodiesel compatible**BANGTE**$95.98**4.5★4 rev](https://www.amazon.com/dp/B0CJVNPRBJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**6PCS FS19764 Fuel Filter Water Separator Compatible with L9765 L9763FXL 33763 FS19766 PF9814 33964 Replaces for FS19765 P550851 PF7930 WF10005 L9765 L9763FXL 33763 FS19766 PF9814 33964**SEGULER**$85.79**1 rev3mo ago](https://www.amazon.com/dp/B0GSG9WLVB) [**4PCS FS19764 Fuel Filter Water Separator Fit for Cummins X12 X15 ISX12 ISX15 Engine Replace FS19765 P550851 PF7930**AULDAY**$56.09**0 rev10mo ago](https://www.amazon.com/dp/B0FPC295F4) [**6PCS FS19764 Fuel Filter Water Separator Compatible with Cummins X12 X15 ISX12 ISX15 Replaces FS19765 FS19763 FS19766 P550851 PF7930 WF10005 21737499**AULDAY**$85.61**2 rev10mo ago](https://www.amazon.com/dp/B0FPC3QXC3) [**FS19764 Fuel Filter Water Separator Fit for Cummins X12 X15 ISX12 ISX15 Engine Replace FS19765 P550851 PF7930**AULDAY**$15.98**6 rev10mo ago](https://www.amazon.com/dp/B0FP9HS6MC) [**LF14000NN FF5776 FS19764 Filter Kit Compatible with CumminsX12 X15 ISX12 ISX15 Diesel Engine. Replace K37-1012 K37-1011 2864993 2893612 C3685306 4331007 96498 4367100 LF9080 P559000**Flying Bull**$52.51**8 rev1y ago](https://www.amazon.com/dp/B0F8ZYXX4T)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**6PCS FS19764 Fuel Filter Water Separator Compatible with L9765 L9763FXL 33763 FS19766 PF9814 33964 Replaces for FS19765 P550851 PF7930 WF10005 L9765 L9763FXL 33763 FS19766 PF9814 33964**SEGULER**$85.79**5.0★**▲ 284%**](https://www.amazon.com/dp/B0GSG9WLVB) [**FS19764 Fuel Filter Water Separator Fit for Cummins X12 X15 ISX12 ISX15 Engine Replace FS19765 P550851 PF7930**AULDAY**$15.98**5.0★**▲ 175%**](https://www.amazon.com/dp/B0FP9HS6MC) [**FS19764 Fleetguard Fuel Filter for Cummins ISX15 ISX12**Fleetguard**$36.05**5.0★**▲ 122%**](https://www.amazon.com/dp/B07N87VRGB) [**LF14000NN FF5776 FS19764 Filter Kit Compatible with CumminsX12 X15 ISX12 ISX15 Diesel Engine. Replace K37-1012 K37-1011 2864993 2893612 C3685306 4331007 96498 4367100 LF9080 P559000**Flying Bull**$52.51**5.0★**▲ 73%**](https://www.amazon.com/dp/B0F8ZYXX4T) [**GETOPAUTO LF14000NN FF5776 FS19764 Maintenance Filters Kit Compatible with Cummins**GETOPAUTO**$69.42**4.0★**▲ 51%**](https://www.amazon.com/dp/B0CJ35GX7Q)
**~~View all trending →~~**
## **What buyers say about fs19764**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**24%
*“A lot less expensive than going to Kenworth”*
**Quality-Overall**21%
*“Genuine Fleetguard quality”*
**Size-Overall**20%
*“The best fit”*
**Filtration**16%
*“Genuine Fleetguard Filter”*
**Assembly/Installation**7%
*“Installation was straightforward”*
**Leak-Proof**4%
*“It fit perfectly with no leaks”*
**Maintenance And Repair**4%
*“this is a practical part to keep on hand for regular maintenance”*
**Advertised Vs Actual Product**2%
*“work as intended”*
**Fuel Efficiency**2%
*“the engine runs smoothly with no fuel flow issues”*
**Strength**1%
*“The construction feels solid”*
### **Top return reasons **
**Size-Overall**33%
**Filtration**25%
**Compatibility-Overall**10%
**Defective Material/Parts**8%
**Value For Money**7%
**Advertised Vs Actual Product**7%
**Certifications**3%
**Width**3%
**Quality-Overall**3%
## **Common questions**
- **Is fs19764 profitable to sell on Amazon United States?**
- The niche generates $108K/yr across 18 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -22.2%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the fs19764 niche?**
- 12 brands and 27 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 78% of demand.
- **What does it cost to enter the fs19764 niche?**
- Listings span $15.98–$140.44; the average listing price is $70.52 (sweet spot $15–$100). The average incumbent carries 30 reviews — the moat a new listing must climb.
## **Related niches in Automotive**
- 72 [**brake bleeder kit**](https://flapen.com/research/us/automotive/brake-bleeder-kit)$2.2M/yr+8.2%**Launch it**- 72 [**gas can pump**](https://flapen.com/research/us/automotive/gas-can-pump)$1.7M/yr+20.1%**Launch it**- 72 [**dewalt hedge trimmer**](https://flapen.com/research/us/automotive/dewalt-hedge-trimmer)$1.6M/yr+158.2%**Launch it**- 72 [**iron eraser**](https://flapen.com/research/us/automotive/iron-eraser)$107K/yr>1,000%**Worth a look**- 72 [**marine fuel line**](https://flapen.com/research/us/automotive/marine-fuel-line)$198K/yr+104.3%**Worth a look**- 72 [**garden hose filter**](https://flapen.com/research/us/automotive/garden-hose-filter)$729K/yr+110.7%**Worth a look**[**All Automotive niches **](https://flapen.com/research/us/automotive)