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55

coolant temperature sensor

Worth a look

Shows no brand lock-in (top 5 brands take 57% of clicks), but soft demand (-8.3% this quarter) keeps it on the watch list.

Market size 54Growth 21Conversion 48Competition 76Returns 32Price range 69Avg price 68Brand share 78Review moat 74Quality gap 62

Brand share

Great57%

top-5 brand share — no brand owns this niche

Competition

Great39%

top-5 click share — an open shelf

Review moat

Good526.83

avg incumbent reviews — the moat a new listing must climb

Price range

Good$5.70–$36.06

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

Avg price

Good$14.19

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good$361K

$361K/yr · 660K searches

Conversion

Okay3.9%

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

Returns

Okay5.1%

return rate — above 6% kills the launch gate

Growth

Bad-8.3%

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

Competition

Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.

Brands

25 falling

Sellers

109

Top-5 brand share

57%

Open market

39%

  • ACDelco22%
  • GM GENUINE PARTS12%
  • A-Premium11%
  • Beck/Arnley7%
  • GKmow5%
  • Manymiba5%

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%5%$18K10%$36K15%$54K20%$72K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 41 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.3% search growth over the last 90 days.
23K18KHoliday '24SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Reviews

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

What buyers love

Size-Overall27%

“Easy fit”

Quality-Overall13%

“Fair quality for a fair price”

Value For Money12%

“Good Value”

Efficiency10%

“Working good”

Assembly/Installation8%

“This was a nice clean install”

Advertised Vs Actual Product6%

“Did the job”

Coolant4%

“the cooling system seems happier overall”

Ease Of Use4%

“Easy peasy”

Durability2%

“still holding up”

Filtration2%

“keeps the air quality good”

What buyers complain about

Durability17%

“Easily breaks”

Sensor13%

“They say you have to replace both sensor”

Compatibility-Overall13%

“It is not compatible with my jeep liberty”

Size-Overall11%

“discovered it wasnt the correct size. way too small”

Quality-Overall8%

“Bad quality control”

Functionality-Overall5%

“Didnt work”

Defective Material/Parts2%

“Part failed after a week”

Heating2%

“the clip is brittle from the heat its been exposed to”

Socket/Port/Plug2%

“Plug connection is different”

Advertised Vs Actual Product2%

“this did not fit my car as it advertised very disappointed”

Top return reasons

Sensor23%
Size-Overall19%
Coolant14%
Compatibility-Overall14%
Defective Material/Parts7%
Advertised Vs Actual Product4%
Functionality-Overall4%
Value For Money3%
Measurement/Reading Accuracy2%
Socket/Port/Plug2%