Skip to content
51

oil filter housing gasket

Worth a look

Shows a thin review moat (284 avg reviews), but soft demand (-33.8% this quarter) keeps it on the watch list.

Market size 20Growth 8Conversion 50Competition 85Returns 72Price range 38Avg price 80Brand share 66Review moat 86Quality gap 53

Review moat

Great284.22

avg incumbent reviews — the moat a new listing must climb

Competition

Great30%

top-5 click share — an open shelf

Avg price

Great$17.07

avg listing price — sweet spot $15–$100

Returns

Good2.1%

return rate — above 6% kills the launch gate

Brand share

Good65%

top-5 brand share — brands hold most of the demand

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Conversion

Good4.0%

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

Price range

Okay$3.41–$225.49

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

Market size

Bad$78K

$78K/yr · 113K searches

Growth

Bad-33.8%

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

Competition

Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.

Brands

37 rising

Sellers

141

Top-5 brand share

65%

Open market

31%

  • Fel-Pro34%
  • MAHLE11%
  • GM GENUINE PARTS9%
  • MOXRUQ7%
  • KoiLuvGo5%
  • MOTOKU4%

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%2%$2K4%$3K6%$5K8%$6K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

All 73 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -33.8% search growth over the last 90 days.
3K2KSpike '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Mar · busiest ÷ quietest = 2.0×

Reviews

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

What buyers love

Size-Overall24%

“Fit great”

Quality-Overall19%

“The housing is good quality”

Leak-Proof12%

“No leaks”

Value For Money9%

“Much cheaper”

Advertised Vs Actual Product6%

“Worked as advertised”

Assembly/Installation5%

“The install was very straight forward”

Efficiency3%

“Works perfectly”

Durability3%

“The gasket looks very durable”

Lubrication2%

“Easy upgrade for my engine oil system”

Coolant2%

“Great quality, my truck has been loving the fact it's not leaking oil and coolant anymore”

What buyers complain about

Leak-Proof24%

“Leaks Oil”

Quality-Overall12%

“the second one looks like it never seen quality control”

Size-Overall9%

“It is too big”

Assembly/Installation4%

“unfortunately had to install in recently”

Defective Material/Parts4%

“Auto part”

Compatibility-Overall3%

“Does not fit”

Durability3%

“After a week of use it broke again”

Thickness3%

“What to thick leaving a gap between plates”

Lubrication3%

“DO NOT USE PROVIDED GASKETS”

Sensor2%

“Reviews for online sensor orders indicate issues”

Top return reasons

Size-Overall24%
Compatibility-Overall13%
Leak-Proof12%
Defective Material/Parts11%
Coolant6%
Advertised Vs Actual Product6%
Value For Money4%
Filtration4%
Assembly/Installation3%
Quality-Overall2%