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3/16 fuel line

Skip it41/100

a small market ($112K/yr) — 3/16 fuel line doesn't clear our bar today.

Market/yr

$112K

Growth (1y)

+187.5%

Products

14

Brands

13

was 16 a year ago

Sellers

16

Price range

$6.93–$22.33

Returns

1.1%

Rating

4.6★

41/100

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Scored 41/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
6
×0.30
Growth
75
×0.30
Competition
26
×0.20
Quality gap
27
×0.10
Returns
91
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +187.5% year over year.
2K1KSpike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

No pronounced peak months · busiest ÷ quietest = 1.4×

Competition

36%YAMAKATO
  • YAMAKATO36%
  • ALLWIN13%
  • YS-TM11%
  • ZONBANG7%
  • Sunxeke7%
  • Bullwall6%
  • Other (7 brands)21%

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack. 13 brands and 16 sellers compete here.

Brands

13 falling

was 16 a year ago

Sellers

16

Top 5 brand share

73%

#ProductBrandPriceRatingReviewsClick shareTrend

Product shelf

All 14 tracked products in this niche.

Reviews

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

What buyers love

Quality-Overall32%

“Good variety”

Size-Overall18%

“A selection of sizes included”

Advertised Vs Actual Product12%

“Worked as advertised”

Value For Money10%

“Good value”

Ease Of Use3%

“Many uses”

Fuel Efficiency3%

“Excellent fuel line”

Cutting/Trimming3%

“Easy to cut easy to fit”

Efficiency3%

“Works good”

Flexibility2%

“Flexible, kink free”

Durability2%

“working great - durability of big brand names”

What buyers complain about

Size-Overall18%

“Misleading sizes”

Durability16%

“it was falling apart”

Quality-Overall8%

“Don't settle for cheap garbage”

Leak-Proof8%

“leakage and durability not so good will go soft on hot places”

Color5%

“Clear tube not black tube”

Defective Material/Parts5%

“Quality parts and a ton of fuel line”

Hard Feel5%

“It has turned hard”

Ease Of Use4%

“Cant use them”

Thickness3%

“Very thin tubing we'll see how long it lasts”

Design-Overall3%

“Definitely not designed to be fuel line”

Top return reasons

  • Size-Overall78%
  • Advertised Vs Actual Product4%
  • Quality-Overall4%
  • Functionality-Overall3%
  • Defective Material/Parts2%
  • Material Quality1%
  • Value For Money1%
  • Compatibility-Overall1%
  • Thin1%
  • Width1%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.65 median price · 2.2% median returns across 14,117 tracked niches.