---
title: "inline fuel filter — Niche Verdict: Worth a look (61/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/inline-fuel-filter"
last_updated: "2026-07-13T22:35:49.739Z"
locale: en
meta:
  description: "inline fuel filter shows low returns (1.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:description": "inline fuel filter shows low returns (1.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:title": "inline fuel filter — Niche Verdict: Worth a look (61/100) | Amazon United States - Flapen"
---

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# **inline fuel filter**

**Worth a look**

Shows low returns (1.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 34Growth 49Conversion 76Competition 59Returns 93Price range 79Avg price 75Brand share 76Review moat 74Quality gap 40

**Returns**

**Great****1.1%**

return rate — above 6% kills the launch gate

**Price range**

**Great****$5.96–$49.96**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Conversion**

**Great****7.2%**

search→purchase rate — share of searches ending in a sale

**Brand share**

**Great****59%**

top-5 brand share — no brand owns this niche

**Avg price**

**Great****$14.95**

avg listing price — sweet spot $15–$100

**Review moat**

**Good****553**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Good****49%**

top-5 click share — leaders hold, buyers still browse

**Growth**

**Okay****+19.6%**

90-day search growth — must beat 0% to launch

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Market size**

**Okay****$164K**

$164K/yr · 153K searches

## **Competition**

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**23 **▼falling

**Sellers**

**70**

**Top-5 brand share**

**59%**

**Open market**

**34%**

- Wix17% - K&N13% - CocoMocart13% - Snwoygr9% - Deflife7% - Strongthium7%

## **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%4%$7K8%$13K12%$20K16%$26K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 33 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![K&N 81-0300 Replacement Fuel Filter](https://m.media-amazon.com/images/I/31SH-DGRZgL.jpg)**K&N 81-0300 Replacement Fuel Filter**K&N**$9.21**4.5★3,954 rev](https://www.amazon.com/dp/B07X64ZN5H) [2![CocoMocart 10 Pack 1/4 Inch Inline Fuel Filter for Kawasaki Briggs & Stratton Kohler Engines - Universal Replacement Gasoline Filters with Magnet 1/4 and 5/16 For John Deere](https://m.media-amazon.com/images/I/41AJ0cblKEL.jpg)**CocoMocart 10 Pack 1/4 Inch Inline Fuel Filter for Kawasaki Briggs & Stratton Kohler Engines - Universal Replacement Gasoline Filters with Magnet 1/4 and 5/16 For John Deere**CocoMocart**$9.95**4.4★2,127 rev](https://www.amazon.com/dp/B06XDJR2JT) [3![Snwoygr 10 PCS Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Third Generation Universal Replacement Fuel Filter for 1/4 IN and 5/16 IN](https://m.media-amazon.com/images/I/41dQW8J0T7L.jpg)**Snwoygr 10 PCS Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Third Generation Universal Replacement Fuel Filter for 1/4 IN and 5/16 IN**Snwoygr**$6.81**4.4★612 rev](https://www.amazon.com/dp/B0DFXQCWBH) [4![WIX Racing Filters Fuel Filter](https://m.media-amazon.com/images/I/31Lbqmj5h9L.jpg)**WIX Racing Filters Fuel Filter**Wix**$6.28**4.7★1,244 rev](https://www.amazon.com/dp/B000CSEUPG) [5![WIX 33033 Universal In-Line Fuel Filter with 3/8 Clamp-On Inlet/Outlet Max Pressure 60-PSI](https://m.media-amazon.com/images/I/312wdEaXbkL.jpg)**WIX 33033 Universal In-Line Fuel Filter with 3/8 Clamp-On Inlet/Outlet Max Pressure 60-PSI**Wix**$7.31**4.8★1,477 rev](https://www.amazon.com/dp/B000C9WJ8U)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![3/16 Fuel Line Gas Filter Kits 5mm Fuel Hose Inline Fuel Filters Shut Off Valve Petcock Petrol Switch Set for Go Kart ATV Motorcycle Pitbike Scooter Moped Quad Buggy Parts (Orange)](https://m.media-amazon.com/images/I/41avYJ7thNL.jpg)**3/16 Fuel Line Gas Filter Kits 5mm Fuel Hose Inline Fuel Filters Shut Off Valve Petcock Petrol Switch Set for Go Kart ATV Motorcycle Pitbike Scooter Moped Quad Buggy Parts (Orange)**CocoMocart**$10.93**30 rev5mo ago](https://www.amazon.com/dp/B0GJDCDS4F) [![ATMOAUS Universal 1/4 Fuel Line Kit 3.3 Feet with 2 Magnetic Inline Fuel Filters 8 Hose Clamps for Small Engines](https://m.media-amazon.com/images/I/41YTonrAppL.jpg)**ATMOAUS Universal 1/4 Fuel Line Kit 3.3 Feet with 2 Magnetic Inline Fuel Filters 8 Hose Clamps for Small Engines**ATMOAUS**$10.02**51 rev8mo ago](https://www.amazon.com/dp/B0FSS1N9HM) [![TRHSIFF 10 PCS 1/4 Inch and 5/16 Inch Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Upgrade Universal Replacement Fuel Filter with 10 Clips](https://m.media-amazon.com/images/I/41DSvSeD8UL.jpg)**TRHSIFF 10 PCS 1/4 Inch and 5/16 Inch Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Upgrade Universal Replacement Fuel Filter with 10 Clips**TRHSIFF**$7.31**96 rev8mo ago](https://www.amazon.com/dp/B0FXPKD5QN) [![EVIL ENERGY 3/8 Barb Billet Inline Fuel Filter 30 Micron Aluminum Black for Car EFI & Carb Fuel Systems Motorcycle and Boats](https://m.media-amazon.com/images/I/31MiB0CRGdL.jpg)**EVIL ENERGY 3/8 Barb Billet Inline Fuel Filter 30 Micron Aluminum Black for Car EFI & Carb Fuel Systems Motorcycle and Boats**EVIL ENERGY**$19.77**107 rev1y ago](https://www.amazon.com/dp/B0F7RCPY7C) [![Inline Fuel Filter for Lawn Mower Small Engine Kohler John Deere Kawasaki - Gas Filter Replacement with High Flow Design (12-Pack)](https://m.media-amazon.com/images/I/41Ahj7W2onL.jpg)**Inline Fuel Filter for Lawn Mower Small Engine Kohler John Deere Kawasaki - Gas Filter Replacement with High Flow Design (12-Pack)**WYTUDTE**$8.33**103 rev1y ago](https://www.amazon.com/dp/B0FG2CVYV8)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![AM116304 Fuel Filter 25 050 22-S for John Deere Kohler 120-436 GY20709 For 1/4 and 5/16 Fuel Line Replaces 71-5960 120-436 GY20709 38666 149-2206-01 21541500 98021](https://m.media-amazon.com/images/I/41s9k4rpFoL.jpg)**AM116304 Fuel Filter 25 050 22-S for John Deere Kohler 120-436 GY20709 For 1/4 and 5/16 Fuel Line Replaces 71-5960 120-436 GY20709 38666 149-2206-01 21541500 98021**ASSOTS**$6.22**4.6★**▲ 142%**](https://www.amazon.com/dp/B08R94CM9W) [![3/16 Fuel Line Gas Filter Kits 5mm Fuel Hose Inline Fuel Filters Shut Off Valve Petcock Petrol Switch Set for Go Kart ATV Motorcycle Pitbike Scooter Moped Quad Buggy Parts (Orange)](https://m.media-amazon.com/images/I/41avYJ7thNL.jpg)**3/16 Fuel Line Gas Filter Kits 5mm Fuel Hose Inline Fuel Filters Shut Off Valve Petcock Petrol Switch Set for Go Kart ATV Motorcycle Pitbike Scooter Moped Quad Buggy Parts (Orange)**CocoMocart**$10.93**4.4★**▲ 122%**](https://www.amazon.com/dp/B0GJDCDS4F) [![TRHSIFF 10 PCS 1/4 Inch and 5/16 Inch Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Upgrade Universal Replacement Fuel Filter with 10 Clips](https://m.media-amazon.com/images/I/41DSvSeD8UL.jpg)**TRHSIFF 10 PCS 1/4 Inch and 5/16 Inch Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Upgrade Universal Replacement Fuel Filter with 10 Clips**TRHSIFF**$7.31**4.4★**▲ 100%**](https://www.amazon.com/dp/B0FXPKD5QN) [![FUEL FILTERS INDUSTRIAL HIGH PERFORMANCE UNIVERSAL INLINE GAS FUEL LINE 3/8 2 Pack](https://m.media-amazon.com/images/I/31eBQdNeYaL.jpg)**FUEL FILTERS INDUSTRIAL HIGH PERFORMANCE UNIVERSAL INLINE GAS FUEL LINE 3/8 2 Pack**Deflife**$9.51**4.5★**▲ 96%**](https://www.amazon.com/dp/B0CZLKX3YF) [![Quicksilver 879885Q Inline Fuel Filter for Mercury and Mariner Outboards](https://m.media-amazon.com/images/I/21HQn5YTgOL.jpg)**Quicksilver 879885Q Inline Fuel Filter for Mercury and Mariner Outboards**Quicksilver**$15.48**4.8★**▲ 83%**](https://www.amazon.com/dp/B004QJQO6A)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +19.6% search growth over the last 90 days.

5K4KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 1.8×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Filtration**19%

*“Great filter”*

**Quality-Overall**16%

*“This kit is high quality”*

**Value For Money**13%

*“Good Price”*

**Advertised Vs Actual Product**12%

*“As advertised”*

**Size-Overall**12%

*“Perfect fit and exactly as described”*

**Fuel Efficiency**5%

*“Keep your fuel clean”*

**Efficiency**4%

*“The clear filter helps keep an eye on debris”*

**Assembly/Installation**3%

*“It looks GREAT when initially installed”*

**Leak-Proof**2%

*“Didnt leak,”*

**Mounting**1%

*“I like that this comes with the mount”*

### **What buyers complain about **

**Filtration**18%

*“Filter are junk”*

**Leak-Proof**14%

*“They leak”*

**Quality-Overall**14%

*“no quality control”*

**Size-Overall**10%

*“They're a bit smaller than I expected”*

**Durability**8%

*“Do not last”*

**Fuel Efficiency**5%

*“This will not flow enough fuel for automotive applications”*

**Material Quality**2%

*“This hose feels like a different kind of material”*

**Value For Money**2%

*“They are spendy for what it is”*

**Jamming/Clogging**2%

*“Some of these filters either leak or are clogged”*

**Advertised Vs Actual Product**1%

*“Not what I was looking for”*

### **Top return reasons **

**Size-Overall**66%

**Filtration**12%

**Compatibility-Overall**6%

**Advertised Vs Actual Product**3%

**Defective Material/Parts**2%

**Value For Money**1%

**Fuel Efficiency**1%

**Leak-Proof**1%

**Quality-Overall**1%

**Functionality-Overall**1%