---
title: "Ff5825nn — $98K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/ff5825nn"
last_updated: "2026-08-11T01:28:25.536Z"
locale: en
meta:
description: "Niche score 46/100 · $98K/yr market · 13K searches/yr · $105.57 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $98K/yr market · 13K searches/yr · $105.57 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Ff5825nn — $98K/yr Amazon US Niche (2026) - Flapen"
---
# **ff5825nn**
**Skip it**
Soft demand (-13.3% this quarter) — this niche doesn't clear our bar today.
Market size 25Growth 18Conversion 75Competition 46Returns 97Price range 22Avg price 73Brand share 39Review moat 99Quality gap 22
**Review moat**
**Incredible****16.58**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****7.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$105.57**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Market size**
**Bad****$98K**
$98K/yr · 13K searches
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Price range**
**Bad****$24.21–$365.34**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-13.3%**
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, ff5825nn is a $98K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan. Verdict: Skip it — 46/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ff5825nn market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$106K–$132K**
- units × avg price
- **Conversion rate**
- **7.1%**
- **Avg BSR**
- **#3,444**
- **Page quality**
- **0%**
- **Prime**
- **74%**
- **Sponsored**
- **68%**
- **Out of stock**
- **8.3%**
- **Avg brand age**
- **28 months**
- **Avg seller age**
- **131 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**27**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 100%
**Open market**
**14%**
- Fleetguard49% - Fourtry12% - GETOPAUTO11% - FOCUSFILTER5% - Cummins5% - OBNES4% - Open — no brand owns it (6 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 88 weeks — -13.3% search growth over the last 90 days.
300200Spike '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/automotive/ff5825nn/trend)
## **Top ff5825nn 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%$10K20%$20K30%$30K40%$39K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**FF5825NN Fleetguard Fuel Filter - Genuine OEM filter for Cummins ISX15 & ISX12 engines - 1 Pack**Fleetguard**$106.08**4.6★40 rev](https://www.amazon.com/dp/B07KY2QHZC) [2**Genuine Fleetguard - Cummins Filtration LF14000NN - FF5825NN - FS19765 Fleetguard Filters Kit For Cummins**Fleetguard**$138.67**4.3★28 rev](https://www.amazon.com/dp/B09NV2X5DH) [3**FF5825NN Fuel Filter Compatible with C ummins ISX11.9 ISX15.0 QSX11.9 X15 Engines Freight liner Peter bilt Ken worth Trucks Replaces FF5825NN 5599456 5365988 DBF6776 BF46129 WF10515 3-Pack**Fourtry**$62.73**5.0★3 rev](https://www.amazon.com/dp/B0FJM75R96) [4**Fleetguard FF5825NN Fuel Filter Pack of 2 Heavy Duty Diesel Engine**Fleetguard**$145.55**5.0★1 rev](https://www.amazon.com/dp/B07QZLK1L4) [5**Fleetguard FF5825NN Fuel Filter (6 Pack)**Fleetguard**$365.34**4.6★77 rev](https://www.amazon.com/dp/B07KY2VW1F)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**LOJYU FF5825NN*3 Secondary Fuel Filter for Cummins X15 ISX15 for Freightliner Cascadia for Kenworth T680 Replaces 5365988 FF5776 BF46129 4 Micron Synthetic Media**LOJYU**$60.51**2 rev6mo ago](https://www.amazon.com/dp/B0FR4P6ZMW) [**FOCUSFILTER FF5825NN OEM Grade Fuel Filter Fit For Cummins ISX11.9 ISX15.0 QSX11.9 X15 Engines Fits Freightliner Peterbilt Kenworth Trucks Replaces 5599456 DBF6776 5365988 BF46129 WF10515**FOCUSFILTER**$24.21**0 rev6mo ago](https://www.amazon.com/dp/B0G7V7CS3Q) [**Genuine Fleetguard - Cummins Filtration LF14000NN - FF5825NN - FS19764 Maintenance Filters Kit For Cummins**Fleetguard**$142.45**2 rev7mo ago](https://www.amazon.com/dp/B0G5G7RNCT) [**FF5825NN-2 Fuel Filter Fit For Cummins ISX11.9 ISX15.0 QSX11.9 X15 Engines Fit For Freightliner OE FF5825NN 5599456 5365988 DBF6776 BF46129 WF10515 (set of 2)**XIAGONG**$56.54**0 rev8mo ago](https://www.amazon.com/dp/B0FVXLLV6S) [**3 Pack FleetG FF5825NN C-5599456 NanoNet Fuel Filter designed for heavy-duty; 5599456; 5365988; DBF6776; BF46129; WF10515; LFF6776XL**FilterMax JMV**$140.52**1 rev11mo ago](https://www.amazon.com/dp/B0G7NQDCMF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**FOCUSFILTER FF5825NN OEM Grade Fuel Filter Fit For Cummins ISX11.9 ISX15.0 QSX11.9 X15 Engines Fits Freightliner Peterbilt Kenworth Trucks Replaces 5599456 DBF6776 5365988 BF46129 WF10515**FOCUSFILTER**$24.21**0.0★**▲ 245%**](https://www.amazon.com/dp/B0G7V7CS3Q) [**LOJYU FF5825NN*3 Secondary Fuel Filter for Cummins X15 ISX15 for Freightliner Cascadia for Kenworth T680 Replaces 5365988 FF5776 BF46129 4 Micron Synthetic Media**LOJYU**$60.51**4.5★**▲ 229%**](https://www.amazon.com/dp/B0FR4P6ZMW) [**Fleetguard FF5825NN Fuel Filter Pack of 2 Heavy Duty Diesel Engine**Fleetguard**$145.55**5.0★**▲ 166%**](https://www.amazon.com/dp/B07QZLK1L4) [**OBNES Fuel filter replacement FF5825NN 5599456**OBNES**$29.80**5.0★**▲ 67%**](https://www.amazon.com/dp/B0C1ZT65HZ) [**Genuine Fleetguard - Cummins Filtration LF14000NN - FF5825NN - FS19764 Maintenance Filters Kit For Cummins**Fleetguard**$142.45**3.5★**▲ 37%**](https://www.amazon.com/dp/B0G5G7RNCT)
**~~View all trending →~~**
## **What buyers say about ff5825nn**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**35%
*“Nice combo price”*
**Filtration**29%
*“Good filter”*
**Quality-Overall**19%
*“feel like they're good quality”*
**Size-Overall**13%
*“Fits 2021 Cummins x-15 engine”*
### **What buyers complain about **
**Size-Overall**33%
*“They don't fit my truck what a waste”*
**Filtration**17%
*“Filter leaks”*
**Leak-Proof**17%
*“Filter leaks”*
**Quality-Overall**11%
*“Needs better quality seals”*
### **Top return reasons **
**Size-Overall**39%
**Filtration**28%
**Compatibility-Overall**17%
**Quality-Overall**4%
**Value For Money**4%
**Defective Material/Parts**4%
**Advertised Vs Actual Product**2%
## **Common questions**
- **Is ff5825nn profitable to sell on Amazon United States?**
- The niche generates $98K/yr across 19 tracked products. 1 of 6 products launched in the last 360 days are still selling. 90-day search growth is -13.3%. Flapen's verdict: Skip it (46/100).
- **How competitive is the ff5825nn niche?**
- 12 brands and 27 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in ff5825nn?**
- Top complaints mined from reviews: Size-Overall, Filtration, Leak-Proof. The return rate is 0.7%.
- **When does demand for ff5825nn peak?**
- Demand peaks in Jan; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the ff5825nn niche?**
- Listings span $24.21–$365.34; the average listing price is $105.57 (sweet spot $15–$100). The average incumbent carries 17 reviews — the moat a new listing must climb.
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