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53

timing cover

Worth a look

Shows a sweet-spot price point ($36.86 avg), but soft demand (-8.8% this quarter) keeps it on the watch list.

Market size 50Growth 21Conversion 44Competition 88Returns 49Price range 46Avg price 95Brand share 53Review moat 91Quality gap 33

Avg price

Incredible$36.86

avg listing price — sweet spot $15–$100

Review moat

Great185.29

avg incumbent reviews — the moat a new listing must climb

Competition

Great27%

top-5 click share — an open shelf

Brand share

Good73%

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

Market size

Good$280K

$280K/yr · 218K searches

Returns

Okay3.2%

return rate — above 6% kills the launch gate

Price range

Okay$8.09–$194.84

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

Conversion

Okay3.5%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-8.8%

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

Competition

Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.

Brands

30 rising

Sellers

142

Top-5 brand share

73%

Open market

25%

  • Fel-Pro47%
  • Dorman16%
  • MNJWS3%
  • X AUTOHAUX3%
  • A-Premium2%
  • BSAMZO2%

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%3%$8K6%$17K9%$25K12%$34K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 77 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.8% search growth over the last 90 days.
5K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Reviews

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

What buyers love

Size-Overall31%

“Best fit”

Quality-Overall24%

“Good quality”

Leak-Proof11%

“still not leaking”

Value For Money10%

“Great price”

Advertised Vs Actual Product9%

“Works as it should”

Efficiency3%

“Gasket work well”

Assembly/Installation2%

“Easy install”

Material Quality1%

“The gasket material feels properly rubbery and dense, not the thin paper-thin stuff that tears if you look at it wrong”

Ease Of Use1%

“Easy”

Maintenance And Repair1%

“has everything needed to make proper repair”

What buyers complain about

Size-Overall18%

“the gasket was slightly too big”

Quality-Overall16%

“Maybe a little better quality control”

Leak-Proof9%

“leaked oil everywhere”

Defective Material/Parts7%

“The part arrived damaged”

Sensor5%

“had to remove it after install because one cam sensor hole was not machined all the way through”

Thickness3%

“The thickness also prevents the included bolts to seat themselves in the cover/gasket unit”

Motor Issues3%

“Destroyed the engine”

Ease Of Use3%

“not practical”

Product Condition3%

“The gasket is ancient”

Mounting3%

“Number of bolt pattern mounting holes”

Top return reasons

Size-Overall36%
Defective Material/Parts14%
Compatibility-Overall12%
Advertised Vs Actual Product7%
Value For Money5%
Leak-Proof4%
Maintenance And Repair3%
Product Condition3%
Functionality-Overall2%
Quality-Overall2%