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mo-339 mopar oil filter

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Brand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.

Market size 29Growth 45Conversion 77Competition 33Returns 96Price range 50Avg price 50Brand share 12Review moat 63Quality gap 18

Returns

Incredible0.9%

return rate — above 6% kills the launch gate

Conversion

Great7.5%

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

Review moat

Good982.29

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$12.02

avg listing price — sweet spot $15–$100

Price range

Good$6.33–$23.59

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

Growth

Okay+16.0%

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

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

Market size

Okay$131K

$131K/yr · 145K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Brand share

Bad95%

top-5 brand share — brand-locked demand

Competition

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 rising

Sellers

87

Top-5 brand share

95%

Open market

2%

  • Mopar57%
  • Wix17%
  • Chrysler10%
  • K&N7%
  • BEONEO4%
  • Purolator3%
  • Open — no brand owns it (1 brand, 2%)

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%10%$13K20%$26K30%$39K40%$53K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 17 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +16.0% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May · busiest ÷ quietest = 1.9×

Reviews

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

What buyers love

Filtration28%

“Good quality filter”

Quality-Overall21%

“Really nice quality filter”

Size-Overall16%

“Fit perfect”

Value For Money12%

“Great value”

Advertised Vs Actual Product7%

“As advertised”

Assembly/Installation2%

“Easy installation”

Efficiency2%

“Works Well”

Ease Of Use1%

“Easy work”

Pressure1%

“The oil pressure looks normal”

Durability1%

“Looks durable”

What buyers complain about

Filtration21%

“Defective Filter”

Quality-Overall17%

“Bad quality control”

Size-Overall10%

“than realized 3 days later it says does not fit my vehicle”

Compatibility-Overall8%

“This is NOT compatible with a 2013 Dodge Journey even though it says it in the list”

Leak-Proof5%

“the filter made it 2 days before leaking”

Paint Quality5%

“In short, flaking paint can be seen on the body of the filter inside the gasket which seems like it could easily flake further and get into my oil”

Metal Quality4%

“I blew out the metal shavings”

Material Quality4%

“It was not what I expected with the material of this product”

Value For Money3%

“Not worth the money”

Product Condition2%

“my bag looked like it had been used several times”

Top return reasons

Size-Overall32%
Filtration25%
Compatibility-Overall15%
Value For Money6%
Defective Material/Parts5%
Advertised Vs Actual Product4%
Product Condition4%
Paint Quality2%
Quality-Overall1%
Leak-Proof1%