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50

aluminum radiator with electric fan

Worth a look

Shows a thin review moat (105 avg reviews), but weak search conversion (0.5%) keeps it on the watch list.

Market size 25Growth 50Conversion 6Competition 86Returns 39Price range 23Avg price 43Brand share 64Review moat 95Quality gap 68

Review moat

Great104.56

avg incumbent reviews — the moat a new listing must climb

Competition

Great29%

top-5 click share — an open shelf

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Brand share

Good66%

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

Growth

Okay+19.8%

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

Avg price

Okay$217.37

avg listing price — sweet spot $15–$100

Returns

Okay4.3%

return rate — above 6% kills the launch gate

Market size

Okay$101K

$101K/yr · 97K searches

Price range

Bad$19.13–$369.65

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

Conversion

Bad0.5%

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

Competition

Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.

Brands

27 falling

Sellers

28

Top-5 brand share

66%

Open market

29%

  • DNA MOTORING23%
  • AW ALLOYWORKS23%
  • ENGINKUHLER8%
  • LUXERAD8%
  • RadySpeed4%
  • ECMRAD4%

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%$3K6%$6K9%$9K12%$12K1101001K 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 — +19.8% search growth over the last 90 days.
2K2KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Reviews

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

What buyers love

Quality-Overall26%

“Good quality”

Size-Overall16%

“Perfect fit”

Value For Money11%

“worth the money”

Assembly/Installation7%

“Installation was easy enough”

Advertised Vs Actual Product6%

“works better than advertised”

Leak-Proof6%

“No leaks, runs cool”

Efficiency5%

“WORKS GREAT”

Design-Overall4%

“Built very well”

Coolant2%

“It seems to be cooling so much better”

Brightness/Shine/Glow1%

“shiney”

What buyers complain about

Leak-Proof19%

“it also leaked”

Size-Overall11%

“bigger than 16 not the claimed 15 3/8”

Assembly/Installation8%

“Havent been able to install yet”

Mounting5%

“I had to trim the mounting brackets”

Strength5%

“Fans weak”

Compatibility-Overall5%

“Doesn't fit a 1997 Honda Civic”

Quality-Overall5%

“Poor quality control”

Socket/Port/Plug4%

“Wiring is not plug and play”

Durability3%

“it's way too early to tell how durable it's going to be”

Defective Material/Parts3%

“Item came damaged”

Top return reasons

Size-Overall50%
Compatibility-Overall11%
Defective Material/Parts6%
Advertised Vs Actual Product5%
Width5%
Leak-Proof5%
Mounting4%
Coolant3%
Functionality-Overall2%
Assembly/Installation2%