---
title: "Ac Relay — $41K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/ac-relay"
last_updated: "2026-08-09T13:39:21.517Z"
locale: en
meta:
description: "Niche score 42/100 · $41K/yr market · 79K searches/yr · $14.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $41K/yr market · 79K searches/yr · $14.47 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Ac Relay — $41K/yr Amazon US Niche (2026) - Flapen"
---
# **ac relay**
**Skip it**
A small market ($41K/yr) — this niche doesn't clear our bar today.
Market size 10Growth 40Conversion 45Competition 23Returns 52Price range 72Avg price 71Brand share 43Review moat 74Quality gap 60
**Review moat**
**Good****547.93**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$6.86–$35.78**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$14.47**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.6%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+11.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****73%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$41K**
$41K/yr · 79K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, ac relay is a $41K/yr Amazon United States market (79K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Skip it — 42/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ac relay market data**
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$36K–$43K**
- units × avg price
- **Conversion rate**
- **3.6%**
- **Avg BSR**
- **#33**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **73%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**13 **▼falling
**Sellers**
**35**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**16%**
- ecocstm41% - KVAEY14% - FASTSTORM9% - GM GENUINE PARTS9% - ACDelco6% - Ronybuy5% - Open — no brand owns it (7 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.6% search growth over the last 90 days.
5K4KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/automotive/ac-relay/trend)
## **Top ac relay search terms**
- **fan relay**27K/yr+18.0%2.1% conv. - **cooling fan relay**19K/yr+15.3%1.9% conv. - **radiator fan relay**16K/yr+15.9%1.7% conv. - **blower motor relay**17K/yr-6.9%1.2% conv. [**All search terms **](https://flapen.com/research/us/automotive/ac-relay/search-terms)
## **Top ac relay 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%10%$4K20%$8K30%$12K40%$17K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**4 PCS Relays 5 Pin Relay 40A Waterproof Car Relays 12V Relay Switch for Electric Cooling Fans Motor Starters Automotive Taillights**ecocstm**$8.52**4.3★302 rev](https://www.amazon.com/dp/B0DC9SL6F9) [2**KVAEY 2 PCS Car AC Relay G8HL-H71 4 Pin Multiple Use Power Relay Assembly Fan Relay Automotive Starter Relay Compatible with Accord Element Civic CR-Z CR-V Car Accessories (2 PCS)**KVAEY**$6.86**4.2★150 rev](https://www.amazon.com/dp/B0DHCT7TYS) [3**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) [4**GM Genuine Parts 13500114 Multi-Purpose Relay**GM GENUINE PARTS**$9.35**4.6★901 rev](https://www.amazon.com/dp/B08NMVWKCS) [5**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★42 rev](https://www.amazon.com/dp/B0DHRR4BYR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PAIYUE 4PCS Fan Relay Car Accessories 4 Pins Car AC Relay Automotive Replacement Starter Relays Air Conditioning Compressor Relays Replace OEM G8HL-H71-12VDC Apply to Air Conditioning Fan Headlight**PAIYUE**$8.99**12 rev6mo ago](https://www.amazon.com/dp/B0GFMY5GPD) [**yorpyep 4 PCS 5 Pin Relay DC 12 V 30 A Multi-Purpose Oil Pump Air Conditioning Fan Relay Heavy Duty Accessories Waterproof Housing Plug and Play Motor Replacement for Most Cars Trucks (Black)**yorpyep**$8.00**8 rev1y ago](https://www.amazon.com/dp/B0FC6GH3HP) [**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**42 rev1y ago](https://www.amazon.com/dp/B0DHRR4BYR) [**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**125 rev1y ago](https://www.amazon.com/dp/B0DKXLNQQC) [**KVAEY 2 PCS Car AC Relay G8HL-H71 4 Pin Multiple Use Power Relay Assembly Fan Relay Automotive Starter Relay Compatible with Accord Element Civic CR-Z CR-V Car Accessories (2 PCS)**KVAEY**$6.86**150 rev1y ago](https://www.amazon.com/dp/B0DHCT7TYS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**PAIYUE 4PCS Fan Relay Car Accessories 4 Pins Car AC Relay Automotive Replacement Starter Relays Air Conditioning Compressor Relays Replace OEM G8HL-H71-12VDC Apply to Air Conditioning Fan Headlight**PAIYUE**$8.99**4.0★**▲ 188%**](https://www.amazon.com/dp/B0GFMY5GPD) [**yorpyep 4 PCS 5 Pin Relay DC 12 V 30 A Multi-Purpose Oil Pump Air Conditioning Fan Relay Heavy Duty Accessories Waterproof Housing Plug and Play Motor Replacement for Most Cars Trucks (Black)**yorpyep**$8.00**3.4★**▲ 99%**](https://www.amazon.com/dp/B0FC6GH3HP) [**Ronybuy 4-PIN 12V DC IP65 Waterproof Relay with Harness 40/30 AMP Relay Switch - Heavy Duty 12&16 AWG Tinned Copper Wires SPST Automotive Relay Kit for Horns Starters Radiator Motor Fans Pack of 1**Ronybuy**$9.60**4.6★**▲ 29%**](https://www.amazon.com/dp/B0D87QZV2J) [**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★**▲ 28%**](https://www.amazon.com/dp/B0DKXLNQQC) [**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★**▲ 23%**](https://www.amazon.com/dp/B0DHRR4BYR)
**~~View all trending →~~**
## **What buyers say about ac relay**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Quality at a fair price”*
**Value For Money**22%
*“Worth it”*
**Advertised Vs Actual Product**12%
*“Works as Intended”*
**Assembly/Installation**9%
*“Very easy, hook up and use”*
**Efficiency**8%
*“Works great”*
**Size-Overall**8%
*“fit perfect”*
**Water Resistance**3%
*“they feel much more substantial than the standard non-waterproof versions”*
**Socket/Port/Plug**1%
*“Excellent relay and socket”*
**Motor Power**1%
*“Fan motor assembly did the trick”*
**Heating**1%
*“Heater”*
### **What buyers complain about **
**Size-Overall**24%
*“Also they are significantly shorter than the original”*
**Compatibility-Overall**20%
*“Does NOT fit a 2006 Honda CR-V”*
**Functionality-Overall**13%
*“Didn't work”*
**Quality-Overall**8%
*“Switch is junk”*
**Advertised Vs Actual Product**8%
*“Falsely advertised”*
**Value For Money**6%
*“Not worth the price”*
**Durability**4%
*“Failed in 4 days”*
**Sensor**2%
*“After having tap the hole in the side of my block a little bigger for the sensor to fit Wired everything up according to the directions Had nothing”*
**Amplification**2%
*“blows them so I had to use 25 amp”*
**Heating**2%
*“Thermal switch lasted one heat cycle on truck”*
### **Top return reasons **
**Size-Overall**41%
**Compatibility-Overall**25%
**Functionality-Overall**10%
**Advertised Vs Actual Product**7%
**Defective Material/Parts**6%
**Value For Money**2%
**Connectivity-Overall**1%
**Assembly/Installation**1%
**Quality-Overall**1%
**Heating**1%
## **Common questions**
- **Is ac relay profitable to sell on Amazon United States?**
- The niche generates $41K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +11.6%. Flapen's verdict: Skip it (42/100).
- **How competitive is the ac relay niche?**
- 13 brands and 35 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in ac relay?**
- Top complaints mined from reviews: Size-Overall, Compatibility-Overall, Functionality-Overall. The return rate is 2.9%.
- **When does demand for ac relay peak?**
- Demand peaks in Jun–Jul–Aug; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the ac relay niche?**
- Listings span $6.86–$35.78; the average listing price is $14.47 (sweet spot $15–$100). The average incumbent carries 548 reviews — the moat a new listing must climb.
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