---
title: "1/4 Fuel Filter — $212K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/1-4-fuel-filter"
last_updated: "2026-08-09T03:39:14.031Z"
locale: en
meta:
description: "Niche score 65/100 · $212K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 65/100 · $212K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "1/4 Fuel Filter — $212K/yr Amazon US Niche (2026) - Flapen"
---
# **1/4 fuel filter**
**Worth a look**
Shows low returns (0.9%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 41Growth 76Conversion 84Competition 70Returns 95Price range 31Avg price 25Brand share 82Review moat 71Quality gap 47
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.2%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Great****53%**
top-5 brand share — no brand owns this niche
**Growth**
**Great****+62.6%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****645.95**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****43%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$212K**
$212K/yr · 257K searches
**Price range**
**Okay****$4.75–$19.70**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$8.98**
avg listing price — sweet spot $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, 1/4 fuel filter is a $212K/yr Amazon United States market (257K searches/yr). The top 5 brands hold 53% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Worth a look — 65/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **1/4 fuel filter market data**
- **Units sold / yr**
- **25K–30K**
- avg 250–500/product
- **Revenue / yr**
- **$225K–$269K**
- units × avg price
- **Conversion rate**
- **9.2%**
- **Avg BSR**
- **#110**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **84%**
- **Out of stock**
- **3.5%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**27 **▼falling
**Sellers**
**72**
**Top-5 brand share**
**53%**
Top 20: 92%
**Top-5 click share**
**43%**
Top 20: 81%
**Open market**
**43%**
- Strongthium15% - CocoMocart14% - MEAJOO8% - Snwoygr8% - Briggs & Stratton7% - WYTUDTE5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +62.6% search growth over the last 90 days.
9K7KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 4.1×
[**Open Trend **](https://flapen.com/research/us/automotive/1-4-fuel-filter/trend)
## **Top 1/4 fuel filter search terms**
- **1/4 fuel filter**57K/yr+40.7%8.4% conv. - **lawn mower fuel filter**33K/yr+106.7%7.9% conv. - **fuel filter for lawn mower**16K/yr+464.6%7.9% conv. - **small engine fuel filter**30K/yr+29.5%6.6% conv. - **briggs and stratton fuel filter**16K/yr+69.2%7.7% conv. - **1/4 inline fuel filter**13K/yr+25.7%8.2% conv. - **mower fuel filter**9K/yr+105.0%7.1% conv. - **lawnmower fuel filter**10K/yr+78.1%8.5% conv. - **in line fuel filter 1/4**11K/yr+17.5%8.6% conv. - **1/4 inch fuel filter**8K/yr+49.5%6.3% conv. [**All search terms **](https://flapen.com/research/us/automotive/1-4-fuel-filter/search-terms)
## **Top 1/4 fuel filter 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%4%$8K8%$17K12%$25K16%$34K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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) [2**Strongthium 691035 1/4 Inline Fuel Filter Kit for Briggs and Stratton Engine Kawasaki 490190027 493629 84001895 80025019 Toro Craftsman MTD Kawasaki Snapper Lawn Tractor Generator 40 Micron**Strongthium**$6.91**4.6★545 rev](https://www.amazon.com/dp/B0CDGYVW2D) [3**MEAJOO 6PCS 1/4 Inch Gas Inline Fuel Filters with magnet Universal for Stratton Small Engine Kohler Kawasaki Birggs John Deere Gasoline Generator Lawn Mower Motorcycle**MEAJOO**$5.96**4.2★200 rev](https://www.amazon.com/dp/B0D4J1RMZV) [4**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) [5**Briggs & Stratton OEM 691035 691035-2 Fuel Filters (2 Pack) 121S02-0001-F1 121S02-0023-F1 121S02-0026-F1 121S02-0130-F1 121S02-0130-F2 121S07-0006-F1 121S07-0024-F1 121S07-0027-F1 121S17-0127-F1**Briggs & Stratton**$12.80**4.6★1,800 rev](https://www.amazon.com/dp/B010W22HAG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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) [**Podavelle 1/4 Billet Inline Fuel Filter 30 Micron Aluminum Black**Podavelle**$19.70**193 rev9mo ago](https://www.amazon.com/dp/B0FSRPVQHR) [**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) [**Panari 1/4 Inline Fuel Filter Kit for Brigs and Straton 691035 493629 for Kawasaki 49019-7001 49019-0027 Kohler 2505007S 2505021S Craftsman Toro Lawnmower Ffuel Filter Parts**Panari**$6.41**108 rev1y ago](https://www.amazon.com/dp/B0DMVX859P) [**YAMAKATO 1/4 Inline Copper Fuel Filters for Dirt Mini Bike ATV Motorcycle UTV Snowmobile more with 1/4 fuel lines 2pcs with 2 clamps**YAMAKATO**$6.95**97 rev1y ago](https://www.amazon.com/dp/B0DXKSTCMB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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★**▲ 93%**](https://www.amazon.com/dp/B0FXPKD5QN) [**Panari 1/4 Inline Fuel Filter Kit for Brigs and Straton 691035 493629 for Kawasaki 49019-7001 49019-0027 Kohler 2505007S 2505021S Craftsman Toro Lawnmower Ffuel Filter Parts**Panari**$6.41**4.1★**▲ 56%**](https://www.amazon.com/dp/B0DMVX859P) [**Briggs and Stratton 394358S Fuel Filter - 75 Micron - 2 Pack**Briggs & Stratton**$8.26**4.7★**▲ 37%**](https://www.amazon.com/dp/B010W44DK6) [**WIX Racing Filters Fuel Filter**Wix**$6.28**4.7★**▲ 34%**](https://www.amazon.com/dp/B000CSEUPG) [**MEAJOO 6PCS 1/4 Inch Gas Inline Fuel Filters with magnet Universal for Stratton Small Engine Kohler Kawasaki Birggs John Deere Gasoline Generator Lawn Mower Motorcycle**MEAJOO**$5.96**4.2★**▲ 27%**](https://www.amazon.com/dp/B0D4J1RMZV)
**~~View all trending →~~**
## **What buyers say about 1/4 fuel filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**17%
*“the air filter for perfect”*
**Quality-Overall**15%
*“Decent quality”*
**Value For Money**14%
*“Great Value”*
**Advertised Vs Actual Product**12%
*“As advertised”*
**Size-Overall**12%
*“Fit great”*
**Efficiency**5%
*“Works well”*
**Fuel Efficiency**4%
*“Keep your fuel clean”*
**Assembly/Installation**4%
*“Just as described; installed and worked as expected”*
**Leak-Proof**2%
*“Didnt leak,”*
**Durability**2%
*“So far its holding up well”*
### **What buyers complain about **
**Leak-Proof**17%
*“Leaked”*
**Filtration**17%
*“Filters not made well”*
**Quality-Overall**14%
*“no quality control”*
**Size-Overall**10%
*“Does Not Fit”*
**Durability**9%
*“Cracks easily”*
**Fuel Efficiency**3%
*“So loose it leaks fuel”*
**Value For Money**2%
*“Way cheaper”*
**Material Quality**2%
*“Bad materials bad quality do not waste your $”*
**Jamming/Clogging**2%
*“Some of these filters either leak or are clogged”*
**Advertised Vs Actual Product**2%
*“buried way down in the product ad”*
### **Top return reasons **
**Size-Overall**64%
**Filtration**14%
**Compatibility-Overall**5%
**Advertised Vs Actual Product**4%
**Defective Material/Parts**2%
**Leak-Proof**2%
**Value For Money**2%
**Quality-Overall**1%
**Fuel Efficiency**1%
**Functionality-Overall**1%
## **Common questions**
- **Is 1/4 fuel filter profitable to sell on Amazon United States?**
- The niche generates $212K/yr across 37 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +62.6%. Flapen's verdict: Worth a look (65/100).
- **How competitive is the 1/4 fuel filter niche?**
- 27 brands and 72 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 53% of demand.
- **What do buyers complain about in 1/4 fuel filter?**
- Top complaints mined from reviews: Leak-Proof, Filtration, Quality-Overall. The return rate is 0.9%.
- **When does demand for 1/4 fuel filter peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 4.1× the quietest.
- **What does it cost to enter the 1/4 fuel filter niche?**
- Listings span $4.75–$19.70; the average listing price is $8.98 (sweet spot $15–$100). The average incumbent carries 646 reviews — the moat a new listing must climb.
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