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oil filter wrench

Launch it

A $2.2M/yr market growing +1.1% this quarter with returns at 2.5% — clears our launch bar.

Market size 95Growth 26Conversion 65Competition 78Returns 62Price range 79Avg price 84Brand share 77Review moat 52Quality gap 48

Market size

Incredible$2.2M

$2.2M/yr · 2.0M searches

Avg price

Great$18.77

avg listing price — sweet spot $15–$100

Price range

Great$6.62–$48.80

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

Competition

Great37%

top-5 click share — an open shelf

Brand share

Great58%

top-5 brand share — no brand owns this niche

Conversion

Good5.8%

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

Returns

Good2.5%

return rate — above 6% kills the launch gate

Review moat

Good1,410.33

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+1.1%

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

Competition

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

27 falling

Sellers

78

Top-5 brand share

58%

Open market

37%

  • WORKPRO35%
  • Orion Motor Tech6%
  • HORUSDY6%
  • DURATECH6%
  • BILITOOLS5%
  • Lisle5%

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%$86K8%$172K12%$259K16%$345K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 42 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +1.1% search growth over the last 90 days.
40K30KSpike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Reviews

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

What buyers love

Quality-Overall18%

“The quality is fair”

Filtration10%

“My husband was thrilled with how easy it removed the filter”

Size-Overall10%

“fits my car perfectly”

Ease Of Use9%

“Easy to use”

Value For Money8%

“Great deal”

Advertised Vs Actual Product7%

“As Advertised”

Efficiency6%

“Good tool that works well”

Grip4%

“Easy grip”

Strength3%

“well built”

Durability3%

“feel durable”

What buyers complain about

Filtration12%

“You can't get any filters with these”

Size-Overall11%

“Doesn't fit”

Grip9%

“Lack of grip”

Quality-Overall8%

“Cheap Quality”

Durability7%

“breaks after a few uses”

Functionality-Overall5%

“functionality sucks”

Compatibility-Overall5%

“Doesnt work for VWs”

Ease Of Use4%

“even the hard to get to one”

Strength3%

“Very flimsy,”

Value For Money3%

“Little cheap”

Top return reasons

Size-Overall47%
Filtration10%
Functionality-Overall9%
Compatibility-Overall8%
Advertised Vs Actual Product5%
Grip4%
Value For Money3%
Defective Material/Parts3%
Quality-Overall2%
Mechanism Issues2%