electric fan relay kit
Worth a lookShows a sweet-spot price point ($30.64 avg), but a small market ($84K/yr) keeps it on the watch list.
Avg price
Incredible$30.64avg listing price — sweet spot $15–$100
Price range
Great$9.60–$58.66cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great301.68avg incumbent reviews — the moat a new listing must climb
Returns
Great1.8%return rate — above 5% kills the launch gate
Growth
Good+41.2%90-day search growth — must beat 0% to launch
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay3.4%search→purchase rate — share of searches ending in a sale
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Market size
Bad$84K$84K/yr · 82K searches
According to Flapen's Amazon United States niche tracking, electric fan relay kit is a $84K/yr Amazon United States market (82K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 52/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
electric fan relay kit market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $92K–$123K
- units × avg price
- Conversion rate
- 3.4%
- Avg BSR
- #19
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 89%
- Out of stock
- 5.2%
- Avg brand age
- 45 months
- Avg seller age
- 188 days
Competition & brand share
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%
Top 20: 100%
Top-5 click share
63%
Top 20: 100%
Open market
17%
- FASTSTORM46%
- ZOZOMOTORS13%
- Oriental Power8%
- ecocstm6%
- Ronybuy5%
- JUNRUO5%
- Open — no brand owns it (8 brands, 17%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +41.2% search growth over the last 90 days.Peak months: May, Jun · busiest ÷ quietest = 2.0×
Top electric fan relay kit search terms
- electric fan relay kit22K/yr
- fan relay kit10K/yr
- dual fan relay kit9K/yr
- radiator fan controller7K/yr
- dual electric fan relay kit6K/yr
- electric fan controller kit7K/yr
- electric fan wiring kit6K/yr
- electric fan controller5K/yr
- cooling fan relay kit4K/yr
- electric fan relay3K/yr
Top electric fan relay kit 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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$21.444.6★125 rev
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$35.044.8★123 rev
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$35.784.5★515 rev
FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54
FASTSTORM$39.483.7★81 rev
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$40.894.3★76 rev
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
Ywdiml$10.555 rev
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$36.3030 rev
FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54
FASTSTORM$39.4881 rev
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$40.8976 rev
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$37.9610 rev
Trending
90-day click momentumYwdiml 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$10.555.0★
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$36.304.1★
FASTSTORM Digital Radiator Fan Switch Kit 12V/24V Adjustable 104F-230F w/Dual Electric Fan Switch Kit Replace #0444 Dual Fan Control IP54
FASTSTORM$39.483.7★
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$20.844.4★
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$37.965.0★
What buyers say about electric fan relay kit
What buyers praise and complain about, mined from review topics.What buyers love
“Quality at a fair price”
“Worth it”
“Exactly advertised”
“Very easy, hook up and use”
“Very Useful”
“It's very easy to adjust your desired Fan on temperature”
“controller works very well”
“Very Useful”
“they feel much more substantial than the standard non-waterproof versions”
“It's very easy to adjust your desired Fan on temperature”
What buyers complain about
“Didn't work that well”
“Switch is junk”
“No directions”
“Main power wire too small”
“they would not come on at temperature”
“Just burned up the second controller in a year,this time it lasted 2 months”
“False advertizing-throw the bumbs out”
“Brand new product out or the box doesnt work”
“Is not waterproof”
“Hard to install”
Top return reasons
Common questions
- Is electric fan relay kit profitable to sell on Amazon United States?
- The niche generates $84K/yr across 19 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +41.2%. Flapen's verdict: Worth a look (52/100).
- How competitive is the electric fan relay kit niche?
- 14 brands and 38 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in electric fan relay kit?
- Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Instructions/User Manual/Troubleshooting. The return rate is 1.8%.
- When does demand for electric fan relay kit peak?
- Demand peaks in May–Jun; the busiest month runs 2.0× the quietest.
- What does it cost to enter the electric fan relay kit niche?
- Listings span $9.60–$58.66; the average listing price is $30.64 (sweet spot $15–$100). The average incumbent carries 302 reviews — the moat a new listing must climb.