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cummins oil filter

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Brand-locked demand (top 5 brands take 93% of clicks) — this niche doesn't clear our bar today.

Market size 48Growth 24Conversion 80Competition 21Returns 95Price range 73Avg price 95Brand share 17Review moat 68Quality gap 37

Returns

Incredible0.9%

return rate — above 6% kills the launch gate

Avg price

Incredible$39.11

avg listing price — sweet spot $15–$100

Conversion

Great8.2%

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

Price range

Good$12.85–$129.55

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

Review moat

Good771.71

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$264K

$264K/yr · 82K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-1.4%

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

Competition

Bad75%

top-5 click share — a locked-up shelf

Brand share

Bad93%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

83

Top-5 brand share

93%

Open market

3%

  • Mopar39%
  • Fleetguard36%
  • Arbriaty8%
  • Doc's Auto Parts6%
  • XIAGONG5%
  • MK-Morzon4%
  • Open — no brand owns it (1 brand, 3%)

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%$26K20%$53K30%$79K40%$106K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.4% search growth over the last 90 days.
5K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, Jul · busiest ÷ quietest = 1.9×

Reviews

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

What buyers love

Filtration29%

“Good quality filter”

Quality-Overall19%

“Seems to be very well made”

Size-Overall18%

“Fit perfect”

Value For Money17%

“Worth the money”

Advertised Vs Actual Product8%

“As advertised”

Assembly/Installation2%

“Easy to install, no leaks”

Efficiency2%

“Works fine”

Durability1%

“Durable”

Lubrication1%

“Company this with Royal Purple oil and its perfection”

Leak-Proof1%

“Easy to install, no leaks”

What buyers complain about

Filtration35%

“Do NOT trust this filter with your engine”

Quality-Overall13%

“or they just come from poor quality control”

Value For Money8%

“expensive”

Metal Quality5%

“Not the metal canister that my truck required”

Material Quality5%

“of sketchy materials”

Product Condition5%

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

Compatibility-Overall5%

“Does not work for 2019 Ram 2500”

Defective Material/Parts3%

“Parts”

Advertised Vs Actual Product3%

“Poor advertising as it stated it was a direct fit to my truck”

Maintenance And Repair3%

“diesels are VERY expensive to repair”

Top return reasons

Filtration34%
Size-Overall18%
Compatibility-Overall13%
Advertised Vs Actual Product12%
Defective Material/Parts10%
Value For Money5%
Product Condition2%
Functionality-Overall1%
Leak-Proof1%
Assembly/Installation1%