---
title: "electric fan relay kit — Niche Verdict: Worth a look (52/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/electric-fan-relay-kit"
last_updated: "2026-07-14T03:18:12.817Z"
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meta:
  description: "electric fan relay kit shows a sweet-spot price point ($30.64 avg), but a small market ($84K/yr) keeps it on the watch list."
  "og:description": "electric fan relay kit shows a sweet-spot price point ($30.64 avg), but a small market ($84K/yr) keeps it on the watch list."
  "og:title": "electric fan relay kit — Niche Verdict: Worth a look (52/100) | Amazon United States - Flapen"
---

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# **electric fan relay kit**

**Worth a look**

Shows a sweet-spot price point ($30.64 avg), but a small market ($84K/yr) keeps it on the watch list.

Market size 21Growth 63Conversion 42Competition 36Returns 78Price range 86Avg price 95Brand share 46Review moat 85Quality gap 45

**Avg price**

**Incredible****$30.64**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$9.60–$58.66**

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

**Review moat**

**Great****301.68**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Great****1.8%**

return rate — above 6% kills the launch gate

**Growth**

**Good****+41.2%**

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

**Brand share**

**Okay****78%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Okay****3.4%**

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

**Competition**

**Okay****63%**

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

**Market size**

**Bad****$84K**

$84K/yr · 82K searches

## **Competition**

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**14 **▼falling

**Sellers**

**38**

**Top-5 brand share**

**78%**

**Open market**

**17%**

- FASTSTORM46% - ZOZOMOTORS13% - Oriental Power8% - ecocstm6% - Ronybuy5% - JUNRUO5% - Open — no brand owns it (8 brands, 17%)

## **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%$8K20%$17K30%$25K40%$34K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![FASTSTORM Electric Fan Relay Kit 12V 60 AMP Electric Radiator Cooling Waterproof Fan Relay Kit with Thermostat Control Switch 185 On 175 Off Upgrade](https://m.media-amazon.com/images/I/51IDeKdKYBL.jpg)**FASTSTORM Electric Fan Relay Kit 12V 60 AMP Electric Radiator Cooling Waterproof Fan Relay Kit with Thermostat Control Switch 185 On 175 Off Upgrade**FASTSTORM**$21.44**4.6★125 rev](https://www.amazon.com/dp/B0DKXLNQQC) [2![FASTSTORM Dual Electric Fan Relay Kit Electric Radiator Fan Kit Temperature Sensor Switch 185 On 175 Off Automotive Wiring Kit 60 Amp Cooling Fan Relay Switch Kit 4 Pin Waterproof Relay Kit](https://m.media-amazon.com/images/I/51OYm+x7xTL.jpg)**FASTSTORM Dual Electric Fan Relay Kit Electric Radiator Fan Kit Temperature Sensor Switch 185 On 175 Off Automotive Wiring Kit 60 Amp Cooling Fan Relay Switch Kit 4 Pin Waterproof Relay Kit**FASTSTORM**$35.04**4.8★123 rev](https://www.amazon.com/dp/B0DKWNQF43) [3![ZOZOMOTORS Dual Electric Fan Relay Kit Radiator Electric Cooling Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off 40 AMP Waterproof Relay Kit](https://m.media-amazon.com/images/I/517nZgpZ4nL.jpg)**ZOZOMOTORS Dual Electric Fan Relay Kit Radiator Electric Cooling Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off 40 AMP Waterproof Relay Kit**ZOZOMOTORS**$35.78**4.5★515 rev](https://www.amazon.com/dp/B098X63RRS) [4![FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54](https://m.media-amazon.com/images/I/51bRWCH7R8L.jpg)**FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54**FASTSTORM**$39.48**3.7★81 rev](https://www.amazon.com/dp/B0F9YJ3NXS) [5![12V/24V Digital Electric Radiator Fan Controller Switch Kit with Adjustable Temperature Range (104-230F) LED Real-Time Display Thermatic Dual Fan Relay Kit for Automotive Systems (Part #0444)](https://m.media-amazon.com/images/I/41evHLeQr5L.jpg)**12V/24V Digital Electric Radiator Fan Controller Switch Kit with Adjustable Temperature Range (104-230F) LED Real-Time Display Thermatic Dual Fan Relay Kit for Automotive Systems (Part #0444)**Oriental Power**$40.89**4.3★76 rev](https://www.amazon.com/dp/B0DSBKCTNV)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Ywdiml Car Electric Fan Relay Kit 40 AMP Vehicles Electric Cooling Radiator Fan Relay Switch Kit 185 On 175 Off Automotive Thermostat Switch Wiring Set Universal for Most Vehicles](https://m.media-amazon.com/images/I/41RLU4bVO4L.jpg)**Ywdiml Car Electric Fan Relay Kit 40 AMP Vehicles Electric Cooling Radiator Fan Relay Switch Kit 185 On 175 Off Automotive Thermostat Switch Wiring Set Universal for Most Vehicles**Ywdiml**$10.55**5 rev8mo ago](https://www.amazon.com/dp/B0G1R4XLBF) [![674-00923 Dual Speed Electric Fan Control Wiring Harness Kit with Relay Compatible with Chevy Avalanche Silverado Suburban Cadillac Escalade GMC Sierra Yukon 1999-2007 Retrofit Stand Alone Fan Wire](https://m.media-amazon.com/images/I/41-yTgeeDoL.jpg)**674-00923 Dual Speed Electric Fan Control Wiring Harness Kit with Relay Compatible with Chevy Avalanche Silverado Suburban Cadillac Escalade GMC Sierra Yukon 1999-2007 Retrofit Stand Alone Fan Wire**GDUKOP**$36.30**30 rev11mo ago](https://www.amazon.com/dp/B0FLJFK8MR) [![FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54](https://m.media-amazon.com/images/I/51bRWCH7R8L.jpg)**FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54**FASTSTORM**$39.48**81 rev1y ago](https://www.amazon.com/dp/B0F9YJ3NXS) [![12V/24V Digital Electric Radiator Fan Controller Switch Kit with Adjustable Temperature Range (104-230F) LED Real-Time Display Thermatic Dual Fan Relay Kit for Automotive Systems (Part #0444)](https://m.media-amazon.com/images/I/41evHLeQr5L.jpg)**12V/24V Digital Electric Radiator Fan Controller Switch Kit with Adjustable Temperature Range (104-230F) LED Real-Time Display Thermatic Dual Fan Relay Kit for Automotive Systems (Part #0444)**Oriental Power**$40.89**76 rev1y ago](https://www.amazon.com/dp/B0DSBKCTNV) [![Digital Radiator Fans Controller Swith Kit 12V/24V Adjustable Temperature Range Digital Electric Thermatic Fan Switch Kit from 104F to 230F (40C to 110C) Replace #0444 DC0444](https://m.media-amazon.com/images/I/41U-PlehBiL.jpg)**Digital Radiator Fans Controller Swith Kit 12V/24V Adjustable Temperature Range Digital Electric Thermatic Fan Switch Kit from 104F to 230F (40C to 110C) Replace #0444 DC0444**ATRACYPART**$37.96**10 rev1y ago](https://www.amazon.com/dp/B0DPHK5JSC)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Ywdiml Car Electric Fan Relay Kit 40 AMP Vehicles Electric Cooling Radiator Fan Relay Switch Kit 185 On 175 Off Automotive Thermostat Switch Wiring Set Universal for Most Vehicles](https://m.media-amazon.com/images/I/41RLU4bVO4L.jpg)**Ywdiml Car Electric Fan Relay Kit 40 AMP Vehicles Electric Cooling Radiator Fan Relay Switch Kit 185 On 175 Off Automotive Thermostat Switch Wiring Set Universal for Most Vehicles**Ywdiml**$10.55**5.0★**▲ 84%**](https://www.amazon.com/dp/B0G1R4XLBF) [![674-00923 Dual Speed Electric Fan Control Wiring Harness Kit with Relay Compatible with Chevy Avalanche Silverado Suburban Cadillac Escalade GMC Sierra Yukon 1999-2007 Retrofit Stand Alone Fan Wire](https://m.media-amazon.com/images/I/41-yTgeeDoL.jpg)**674-00923 Dual Speed Electric Fan Control Wiring Harness Kit with Relay Compatible with Chevy Avalanche Silverado Suburban Cadillac Escalade GMC Sierra Yukon 1999-2007 Retrofit Stand Alone Fan Wire**GDUKOP**$36.30**4.1★**▲ 84%**](https://www.amazon.com/dp/B0FLJFK8MR) [![FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54](https://m.media-amazon.com/images/I/51bRWCH7R8L.jpg)**FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54**FASTSTORM**$39.48**3.7★**▲ 50%**](https://www.amazon.com/dp/B0F9YJ3NXS) [![2 PCS Electric Fan Relay Kit Dual Electric Fan Relay Kit 185 On 175 Off Thermostat Switch 40A Relays 12V Cooling Radiator Fan Relays Wiring Kits for Replacing Faulty Wiring Truck Engine Cooling](https://m.media-amazon.com/images/I/51uxCSHDxOL.jpg)**2 PCS Electric Fan Relay Kit Dual Electric Fan Relay Kit 185 On 175 Off Thermostat Switch 40A Relays 12V Cooling Radiator Fan Relays Wiring Kits for Replacing Faulty Wiring Truck Engine Cooling**ecocstm**$20.84**4.4★**▲ 43%**](https://www.amazon.com/dp/B0DHRR4BYR) [![Digital Radiator Fans Controller Swith Kit 12V/24V Adjustable Temperature Range Digital Electric Thermatic Fan Switch Kit from 104F to 230F (40C to 110C) Replace #0444 DC0444](https://m.media-amazon.com/images/I/41U-PlehBiL.jpg)**Digital Radiator Fans Controller Swith Kit 12V/24V Adjustable Temperature Range Digital Electric Thermatic Fan Switch Kit from 104F to 230F (40C to 110C) Replace #0444 DC0444**ATRACYPART**$37.96**5.0★**▲ 29%**](https://www.amazon.com/dp/B0DPHK5JSC)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +41.2% search growth over the last 90 days.

3K2KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: May, Jun · busiest ÷ quietest = 2.0×

## **Reviews**

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

### **What buyers love **

**Quality-Overall**22%

*“Quality at a fair price”*

**Value For Money**13%

*“Worth it”*

**Advertised Vs Actual Product**13%

*“Exactly advertised”*

**Assembly/Installation**10%

*“Very easy, hook up and use”*

**Efficiency**10%

*“Very Useful”*

**Heating**4%

*“It's very easy to adjust your desired Fan on temperature”*

**Functionality-Overall**3%

*“controller works very well”*

**Ease Of Use**3%

*“Very Useful”*

**Water Resistance**3%

*“they feel much more substantial than the standard non-waterproof versions”*

**Adjustability/Rotatability/Reclining**2%

*“It's very easy to adjust your desired Fan on temperature”*

### **What buyers complain about **

**Functionality-Overall**29%

*“Didn't work that well”*

**Quality-Overall**17%

*“Switch is junk”*

**Instructions/User Manual/Troubleshooting**9%

*“No directions”*

**Size-Overall**6%

*“Main power wire too small”*

**Heating**5%

*“they would not come on at temperature”*

**Durability**4%

*“Just burned up the second controller in a year,this time it lasted 2 months”*

**Advertised Vs Actual Product**3%

*“False advertizing-throw the bumbs out”*

**Defective Material/Parts**3%

*“Brand new product out or the box doesnt work”*

**Water Resistance**2%

*“Is not waterproof”*

**Assembly/Installation**2%

*“Hard to install”*

### **Top return reasons **

**Functionality-Overall**31%

**Size-Overall**16%

**Compatibility-Overall**16%

**Defective Material/Parts**7%

**Advertised Vs Actual Product**6%

**Value For Money**4%

**Assembly/Installation**4%

**Heating**3%

**Quality-Overall**2%

**Amplification**2%