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45

2007 honda accord radiator

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A small market ($47K/yr) — this niche doesn't clear our bar today.

Market size 12Growth 42Conversion 30Competition 51Returns 23Price range 71Avg price 83Brand share 68Review moat 88Quality gap 52

Review moat

Great249.39

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$77.61

avg listing price — sweet spot $15–$100

Price range

Good$52.06–$119.24

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

Brand share

Good64%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good55%

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

Growth

Okay+13.4%

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

Conversion

Okay2.4%

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

Returns

Bad6.4%

return rate — above 6% kills the launch gate

Market size

Bad$47K

$47K/yr · 25K searches

Competition

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

38

Top-5 brand share

64%

Open market

31%

  • PHILTOP34%
  • Nilight13%
  • Torchbeam7%
  • BDFHYK6%
  • DWVO5%
  • UIU4%

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%$5K20%$9K30%$14K40%$19K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 23 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 10 weeks — +13.4% search growth over the last 90 days.
700500Spike '26May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26

Reviews

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

What buyers love

Size-Overall48%

“Perfect fit”

Quality-Overall15%

“Quality”

Durability11%

“3 months later still holding up”

Assembly/Installation7%

“Easy to install”

Value For Money6%

“good for the money”

Leak-Proof4%

“I have no leaks whatsoever”

Heating4%

“This part was effective and fixed my overheating issue so safe to say its well made and durable, I have no leaks whatsoever”

What buyers complain about

Leak-Proof33%

“Leaks”

Size-Overall33%

“Denso radiator cap does NOT fit”

Compatibility-Overall8%

“It doesn't fit in 2003 Honda Accord”

Quality-Overall8%

“Bad quality no answer from seller”

Sensor8%

“Fan switch sensor doesn't fit”

Top return reasons

Compatibility-Overall29%
Size-Overall27%
Defective Material/Parts7%
Coolant6%
Advertised Vs Actual Product6%
Leak-Proof4%
Product Condition4%
Sensor3%
Value For Money3%
Functionality-Overall3%