generator interlock kit
Skip itSoft demand (-66.9% this quarter) — this niche doesn't clear our bar today.
Review moat
Great245.47avg incumbent reviews — the moat a new listing must climb
Avg price
Great$16.31avg listing price — sweet spot $15–$100
Returns
Good2.5%return rate — above 5% kills the launch gate
Price range
Good$6.21–$26.29cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$75K$75K/yr · 215K searches
Growth
Bad-66.9%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, generator interlock kit is a $75K/yr Amazon United States market (215K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jan–Feb–Oct. Verdict: Skip it — 32/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
generator interlock kit market data
- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- $82K–$98K
- units × avg price
- Conversion rate
- 2.1%
- Avg BSR
- #894
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 40 months
- Avg seller age
- 144 days
Competition & brand share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
10
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
5%
- Natupal38%
- SPZOCE15%
- EXCELFU12%
- QYZZRS12%
- Joinfworld11%
- XMK8%
- Open — no brand owns it (2 brands, 5%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -66.9% search growth over the last 90 days.Peak months: Jan, Feb, Oct · busiest ÷ quietest = 4.0×
Top generator interlock kit search terms
- generator interlock kit99K/yr
- interlock kit30K/yr
- generator lockout kit13K/yr
- interlock10K/yr
- generator interlock11K/yr
- interlock kit 50 amp8K/yr
- generator breaker interlock kit7K/yr
- interlock kit with power inlet box5K/yr
- interlock switch4K/yr
- generator interlock kits4K/yr
Top generator interlock 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 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Natupal Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp panels. 1 3/8 inches Spacing between main and generator breaker Professional and Interlock Kit (SD200A)
Natupal$19.114.7★1,751 rev
Generator Interlock Kit Compatible with Eaton Cutler Hammer BR SERIES 150 and 200 amp Panels Generator Horizontal Electrical Interlock Kit 1 1/4-1 7/16 inches Spacing Between Main and Branch Breaker
EXCELFU$16.314.8★568 rev
Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp Panels.1 3/8 inches Spacing Between Main and Generator Breaker.Professional and Interlock Kit(1set)
QYZZRS$11.834.7★485 rev
Generator Interlock Kit Compatible with Eaton Cutler Hammer BR Series 150 & 200 Amp Panels 1 1/4-1 7/16 Inch Spacing Between Main Breaker and Branch Breaker Professional Interlock Kit
SPZOCE$25.854.9★46 rev
Generator Interlock Kit Compatible with Siemens Murray 150 or 200 Amp Panel
XMK$17.414.7★291 rev
Newest
by launch date
Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp Panels 1 3/8 inches Spacing Between Main and Generator BreakerProfessional and Interlock Kit(1set)
WHXMHRQ$6.2129 rev
Generator Interlock SD200A Professional and Safe Interlock Kit
MuuTuoL$8.1837 rev
Joinfworld Generator Interlock Kit Compatible with Eaton Cutler Hammer 100A and 125A Panels with Adjacent Main and Generator Breakers BR Series Professional and Interlock Kit
Joinfworld$11.4543 rev
Generator Interlock Kit Compatible with Eaton Cutler Hammer BR Series 150 & 200 Amp Panels 1 1/4-1 7/16 Inch Spacing Between Main Breaker and Branch Breaker Professional Interlock Kit
SPZOCE$25.8546 rev
Generator Interlock Kits are Compatible with Siemens or Murray 150 or 200 amp Panels. The spacing Between Main and Branch Breakers is 7/8-1 1/4Professional Interlock Kit
SPZOCE$25.9041 rev
Trending
90-day click momentum
Generator Interlock Kit Compatible with Square D QO & Homeline 150/200 Amp Panels 1 3/8 Spacing Between Main & Generator Breakers Professional and Interlock Kit (SD200A)
SPZOCE$26.294.6★
Joinfworld Generator Interlock Kit Compatible with Eaton Cutler Hammer 100A and 125A Panels with Adjacent Main and Generator Breakers BR Series Professional and Interlock Kit
Joinfworld$11.454.8★
Generator Interlock kit Compatible with General Electric GE 150/200 Amp Panels Professional Interlock kit 1 1/4 Distance Between Main and Branch Circuit Breakers
SPZOCE$25.764.8★
Joinfworld Generator Interlock Kit Compatible with Square D QO or Homeline 150 and 200 Amp Panels Interlock Kit with 1 3/8 Inch Spacing Between Main and Generator Breaker
Joinfworld$10.204.6★
Generator Interlock SD200A Professional and Safe Interlock Kit
MuuTuoL$8.184.6★
What buyers say about generator interlock kit
What buyers praise and complain about, mined from review topics.What buyers love
“Good fit”
“Works as advertised”
“The parts seem well made”
“Great Value”
“Easy to install”
“Easy”
“Works flawlessly”
“Clear instructions for DIY”
“Quality material”
“Compatible:”
What buyers complain about
“A tight fit”
“Instructions are confusing still cant figure it out”
“The installation was square and level, so it appears the plate itself may have been milled or cut slightly off”
“While advertise to fit my Simmons electrical box, the unit does not”
“FYI I've seen some saying These make it too easy to turn on everything at once”
“it will not work”
“The base plate needs to be thicker”
“Does not work with Simmons electrical panel”
“No UL Listing”
Top return reasons
Common questions
- Is generator interlock kit profitable to sell on Amazon United States?
- The niche generates $75K/yr across 15 tracked products. 90-day search growth is -66.9%. Flapen's verdict: Skip it (32/100).
- How competitive is the generator interlock kit niche?
- 8 brands and 10 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 87% of demand.
- What do buyers complain about in generator interlock kit?
- Top complaints mined from reviews: Size-Overall, Instructions/User Manual/Troubleshooting, Assembly/Installation. The return rate is 2.5%.
- When does demand for generator interlock kit peak?
- Demand peaks in Jan–Feb–Oct; the busiest month runs 4.0× the quietest.
- What does it cost to enter the generator interlock kit niche?
- Listings span $6.21–$26.29; the average listing price is $16.31 (sweet spot $15–$100). The average incumbent carries 245 reviews — the moat a new listing must climb.