---
title: "ff5825nn — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/ff5825nn"
last_updated: "2026-07-13T22:38:47.198Z"
locale: en
meta:
  description: "soft demand (-13.3% this quarter) — ff5825nn doesn't clear our bar today."
  "og:description": "soft demand (-13.3% this quarter) — ff5825nn doesn't clear our bar today."
  "og:title": "ff5825nn — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
---

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# **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 6% 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

## **Competition**

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%**

**Open market**

**14%**

- Fleetguard49% - Fourtry12% - GETOPAUTO11% - FOCUSFILTER5% - Cummins5% - OBNES4% - Open — no brand owns it (6 brands, 14%)

## **Product shelf**

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](https://m.media-amazon.com/images/I/41QOopPI8KL.jpg)**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](https://m.media-amazon.com/images/I/41kHLgv2CvL.jpg)**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](https://m.media-amazon.com/images/I/31zHTlzhp1L.jpg)**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](https://m.media-amazon.com/images/I/41EzuNP6KoL.jpg)**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)](https://m.media-amazon.com/images/I/41fJJe5DuAL.jpg)**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](https://m.media-amazon.com/images/I/4173dAdK21L.jpg)**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](https://m.media-amazon.com/images/I/41sNME9gL7L.jpg)**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](https://m.media-amazon.com/images/I/41b+H3gx4GL.jpg)**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)](https://m.media-amazon.com/images/I/31sUAPZ4u8L.jpg)**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](https://m.media-amazon.com/images/I/31XbgT9HG8L.jpg)**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](https://m.media-amazon.com/images/I/41sNME9gL7L.jpg)**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](https://m.media-amazon.com/images/I/4173dAdK21L.jpg)**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](https://m.media-amazon.com/images/I/41EzuNP6KoL.jpg)**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](https://m.media-amazon.com/images/I/21lbFKG9ByL.jpg)**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](https://m.media-amazon.com/images/I/41b+H3gx4GL.jpg)**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 →~~**

## **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×

## **Reviews**

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%