---
title: "Coolant Temperature Sensor — $361K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/coolant-temperature-sensor"
last_updated: "2026-08-10T17:19:26.417Z"
locale: en
meta:
description: "Niche score 55/100 · $361K/yr market · 660K searches/yr · $14.19 avg price. Soft demand (-8.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $361K/yr market · 660K searches/yr · $14.19 avg price. Soft demand (-8.3% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Coolant Temperature Sensor — $361K/yr Amazon US Niche (2026) - Flapen"
---
# **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 25Price range 69Avg price 68Brand share 78Review moat 74Quality gap 62
**Brand share**
**Great****57%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Review moat**
**Good****526.83**
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**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****$361K**
$361K/yr · 660K searches
**Conversion**
**Okay****3.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****5.1%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-8.3%**
90-day search growth — must beat 0% to launch
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, coolant temperature sensor is a $361K/yr Amazon United States market (660K searches/yr). The top 5 brands hold 57% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **coolant temperature sensor market data**
- **Units sold / yr**
- **25K–30K**
- avg 500–750/product
- **Revenue / yr**
- **$355K–$426K**
- units × avg price
- **Conversion rate**
- **3.9%**
- **Avg BSR**
- **#558**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **71%**
- **Out of stock**
- **2.2%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
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%**
Top 20: 95%
**Top-5 click share**
**39%**
Top 20: 75%
**Open market**
**39%**
- ACDelco22% - GM GENUINE PARTS12% - A-Premium11% - Beck/Arnley7% - GKmow5% - Manymiba5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -8.3% search growth over the last 90 days.
23K18KHoliday '24 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/automotive/coolant-temperature-sensor/trend)
## **Top coolant temperature sensor search terms**
- **coolant temperature sensor**232K/yr-12.2%2.6% conv. - **engine coolant temperature sensor**75K/yr+1.0%2.5% conv. - **coolant temp sensor**54K/yr-16.1%3.0% conv. - **ect sensor**42K/yr-0.2%2.6% conv. - **sensor de temperatura**35K/yr-21.1%0.5% conv. - **temp sensor**35K/yr-16.7%0.4% conv. - **temperature sensor for car**28K/yr-0.8%2.3% conv. - **coolant sensor**26K/yr-3.6%2.1% conv. - **automotive replacement coolant temperature sensors**20K/yr+12.3%1.6% conv. - **sensor de temperatura del refrigerante**21K/yr+4.8%1.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/coolant-temperature-sensor/search-terms)
## **Top coolant temperature sensor products on Amazon**
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 moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**ACDelco Gold 213-4514 (19236568) Engine Coolant Temperature Sensor**ACDelco**$18.71**4.6★5,257 rev](https://www.amazon.com/dp/B001W0FSMM) [2**A-Premium Engine Coolant Temperature Sensor Compatible with Dodge Grand Caravan 08-19 Ram 1500 2500 3500 Challenger Durango Journey Jeep**A-Premium**$9.10**4.6★409 rev](https://www.amazon.com/dp/B09462QMBQ) [3**GM Genuine Parts 213-4333 (12608814) Engine Coolant Temperature Sensor**GM GENUINE PARTS**$24.88**4.6★894 rev](https://www.amazon.com/dp/B001DX9UM2) [4**GKmow 1 PC Engine Temperature Sensor ECT Temp Sensor Replace 15404280 12191170 60811520 12608814 Car Parts Compatible with Delphi (Gold)**GKmow**$8.65**3.8★151 rev](https://www.amazon.com/dp/B0CPS139CD) [5**NewYall Engine Coolant Cooling Temperature Temp Sensor Sender for Chevy GMC Cadillac Buick Oldsmobile Pontiac**NewYall**$8.95**4.4★777 rev](https://www.amazon.com/dp/B07GWZCDHK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**KPFILEH Engine Coolant Temperature Sensor OEM#19236568 15326388 Automotive Engine Water Coolant Temperature Sensor Replacement Accessories Fit for Most Cars SUVs Trucks (Gold)**KPFILEH**$5.70**5 rev8mo ago](https://www.amazon.com/dp/B0FZ4CY6LW) [**Sandfren Car Engine Coolant Temperature Sensor Vehicles Cooling Water Temp Sensor with Connector Pigtail Harness Automotive OEM# 19236568 Replacement Compatible with Avalanche Cobalt Aveo**Sandfren**$9.00**30 rev8mo ago](https://www.amazon.com/dp/B0FWQKDXHN) [**Engine Coolant Temperature Sensor for 1999-2014 Chevrolet Silverado 1999-2014 GMC Sierra 2000-2015 Chevrolet Tahoe 2000-2016 GMC Yukon 2000-2014 Chevrolet Suburban 2134514 19236568**Manymiba**$9.60**15 rev10mo ago](https://www.amazon.com/dp/B0FPCJGCHM) [**Rebvugr Engine Coolant Temperature Sensor Temperature Sending Unit Water Temp Sender Sending Unit Sensor Car Accessories Compatible with Dodge Jeep Chrysler Replace OEM#56027873 2132811 SU3035**Rebvugr**$6.54**31 rev11mo ago](https://www.amazon.com/dp/B0FKML24KG) [**Engine Coolant Temperature Sensor ECT Temp Sensor Replace D583 19022018 Compatible with 4Runner Avalon Camry Corolla Highlander Prius Sequoia Sienna Solara Tacoma Tundra**WEITARI**$14.00**77 rev1y ago](https://www.amazon.com/dp/B0DLWZKNHX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Engine Coolant Temperature Sensor for 1999-2014 Chevrolet Silverado 1999-2014 GMC Sierra 2000-2015 Chevrolet Tahoe 2000-2016 GMC Yukon 2000-2014 Chevrolet Suburban 2134514 19236568**Manymiba**$9.60**4.9★**▲ 222%**](https://www.amazon.com/dp/B0FPCJGCHM) [**KPFILEH Engine Coolant Temperature Sensor OEM#19236568 15326388 Automotive Engine Water Coolant Temperature Sensor Replacement Accessories Fit for Most Cars SUVs Trucks (Gold)**KPFILEH**$5.70**3.6★**▲ 220%**](https://www.amazon.com/dp/B0FZ4CY6LW) [**Sandfren Car Engine Coolant Temperature Sensor Vehicles Cooling Water Temp Sensor with Connector Pigtail Harness Automotive OEM# 19236568 Replacement Compatible with Avalanche Cobalt Aveo**Sandfren**$9.00**3.8★**▲ 143%**](https://www.amazon.com/dp/B0FWQKDXHN) [**Rebvugr Engine Coolant Temperature Sensor Temperature Sending Unit Water Temp Sender Sending Unit Sensor Car Accessories Compatible with Dodge Jeep Chrysler Replace OEM#56027873 2132811 SU3035**Rebvugr**$6.54**3.2★**▲ 141%**](https://www.amazon.com/dp/B0FKML24KG) [**19236568 213-4514 Engine Coolant Temperature Sensor Compatible with Chevy Avalanche Impala Trailblazer Suburban 1500 2500 HD Express Silverado GMC Envoy Sierra Yukon Savana Saturn 213-4333**A ABIGAIL**$12.15**4.5★**▲ 87%**](https://www.amazon.com/dp/B083FMNP5G)
**~~View all trending →~~**
## **What buyers say about coolant temperature sensor**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**27%
*“Easy fit”*
**Quality-Overall**13%
*“Fair quality for a fair price”*
**Value For Money**12%
*“Good Value”*
**Efficiency**10%
*“Working good”*
**Assembly/Installation**8%
*“This was a nice clean install”*
**Advertised Vs Actual Product**6%
*“Did the job”*
**Coolant**4%
*“the cooling system seems happier overall”*
**Ease Of Use**4%
*“Easy peasy”*
**Durability**2%
*“still holding up”*
**Filtration**2%
*“keeps the air quality good”*
### **What buyers complain about **
**Durability**17%
*“Easily breaks”*
**Sensor**13%
*“They say you have to replace both sensor”*
**Compatibility-Overall**13%
*“It is not compatible with my jeep liberty”*
**Size-Overall**11%
*“discovered it wasnt the correct size. way too small”*
**Quality-Overall**8%
*“Bad quality control”*
**Functionality-Overall**5%
*“Didnt work”*
**Defective Material/Parts**2%
*“Part failed after a week”*
**Heating**2%
*“the clip is brittle from the heat its been exposed to”*
**Socket/Port/Plug**2%
*“Plug connection is different”*
**Advertised Vs Actual Product**2%
*“this did not fit my car as it advertised very disappointed”*
### **Top return reasons **
**Sensor**23%
**Size-Overall**19%
**Coolant**14%
**Compatibility-Overall**14%
**Defective Material/Parts**7%
**Advertised Vs Actual Product**4%
**Functionality-Overall**4%
**Value For Money**3%
**Measurement/Reading Accuracy**2%
**Socket/Port/Plug**2%
## **Common questions**
- **Is coolant temperature sensor profitable to sell on Amazon United States?**
- The niche generates $361K/yr across 41 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -8.3%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the coolant temperature sensor niche?**
- 25 brands and 109 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 57% of demand.
- **What do buyers complain about in coolant temperature sensor?**
- Top complaints mined from reviews: Durability, Sensor, Compatibility-Overall. The return rate is 5.1% — above our launch gate.
- **When does demand for coolant temperature sensor peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the coolant temperature sensor niche?**
- Listings span $5.70–$36.06; the average listing price is $14.19 (sweet spot $15–$100). The average incumbent carries 527 reviews — the moat a new listing must climb.
## **Related niches in Automotive**
- 72 [**brake bleeder kit**](https://flapen.com/research/us/automotive/brake-bleeder-kit)$2.2M/yr+8.2%**Launch it**- 72 [**gas can pump**](https://flapen.com/research/us/automotive/gas-can-pump)$1.7M/yr+20.1%**Launch it**- 72 [**dewalt hedge trimmer**](https://flapen.com/research/us/automotive/dewalt-hedge-trimmer)$1.6M/yr+158.2%**Launch it**- 72 [**iron eraser**](https://flapen.com/research/us/automotive/iron-eraser)$107K/yr>1,000%**Worth a look**- 72 [**marine fuel line**](https://flapen.com/research/us/automotive/marine-fuel-line)$198K/yr+104.3%**Worth a look**- 72 [**garden hose filter**](https://flapen.com/research/us/automotive/garden-hose-filter)$729K/yr+110.7%**Worth a look**[**All Automotive niches **](https://flapen.com/research/us/automotive)