10/4 wire
Skip itSoft demand (-33.3% this quarter) — this niche doesn't clear our bar today.
Review moat
Incredible98.48avg incumbent reviews — the moat a new listing must climb
Avg price
Great$73.88avg listing price — sweet spot $15–$100
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Conversion
Good4.8%search→purchase rate — share of searches ending in a sale
Price range
Okay$15.78–$205.39cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay3.7%return rate — above 5% kills the launch gate
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Market size
Bad$95K$95K/yr · 27K searches
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Growth
Bad-33.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 10/4 wire is a $95K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 89% of demand. Verdict: Skip it — 39/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
10/4 wire market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $74K–$92K
- units × avg price
- Conversion rate
- 4.8%
- Avg BSR
- #402
- Page quality
- 0%
- Prime
- 97%
- Sponsored
- 90%
- Out of stock
- 14.7%
- Avg brand age
- 51 months
- Avg seller age
- 202 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
11 falling
Sellers
30
Top-5 brand share
89%
Top 20: 100%
Top-5 click share
49%
Top 20: 88%
Open market
8%
- CLLOMAGY46%
- YDDECW18%
- Kimbluth15%
- energeaster6%
- FIRMERST4%
- Southwire3%
- Open — no brand owns it (5 brands, 8%)
Demand
Weekly Amazon search volume, last 25 weeks — -33.3% search growth over the last 90 days.Top 10/4 wire search terms
- 10/4 wire11K/yr
- 10/4 soow cord4K/yr
- 10 gauge 4 conductor wire3K/yr
- 10/4 romex4K/yr
- 10-4 wire3K/yr
- 10/4 so cord3K/yr
Top 10/4 wire 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
10/4 Wire 30amp 10 Gauge SJOOW Cable 10AWG 4 Conductor 300V SJOOW Portable Power Cord Cable for Welder Battery Charger RV Generator Machinery-10ft Extension Cord for Industrial Commercial Outdoor Use
CLLOMAGY$26.024.7★74 rev
25ft 10/4 10AWG SOOW Portable Power Cable 600V 10 Gauge SOOW Electrical Cable-4 Conductor Extension Cord for Welder Machine Generator Portable Light EV Car Charger Motor Lead Industrial Outdoor
CLLOMAGY$54.094.6★101 rev
10/4 SJTW Yellow Wire 20 Feet - 10 AWG 4 Conductor SJTW Cable with UV-Resistant Jacket for Motor Leads Battery Chargers and Machine - 20 ft Electrical Wire
YDDECW$49.055.0★11 rev
Kimbluth SJTW 10/4 Wire 20FT Heavy Duty Copper Wire 10 Gauge 4 Conductor Outdoor Extension Power Cable for Battery Automotive Motor Industrial
Kimbluth$54.775.0★1 rev
50ft 10/4 Wire 10AWG SOOW Wire 10 Gauge 10/4 Portable Power Cable 10 Gauge 4 Conductor Electric Cable SOOW Extension Cord for NEMA 14-30amp Generator Welder Portable Light EV Car Charger Motor Lead
CLLOMAGY$107.084.6★101 rev
Newest
by launch dateKimbluth SJTW 10/4 Wire 20FT Heavy Duty Copper Wire 10 Gauge 4 Conductor Outdoor Extension Power Cable for Battery Automotive Motor Industrial
Kimbluth$54.771 rev
Kimbluth SJTW 10/4 Wire 100FT Heavy Duty Copper Wire 10 Gauge 4 Conductor Outdoor Extension Power Cable for Battery Automotive Motor Industrial
Kimbluth$197.821 rev
10/4 SJTW Yellow Wire 20 Feet - 10 AWG 4 Conductor SJTW Cable with UV-Resistant Jacket for Motor Leads Battery Chargers and Machine - 20 ft Electrical Wire
YDDECW$49.0511 rev
10/4 SJTW Yellow Wire 10 Feet - 10 AWG 4 Conductor SJTW Cable with UV-Resistant Jacket for Motor Leads Battery Chargers and Machine - 10 ft Electrical Wire
YDDECW$29.1411 rev
10/4 SOOW Wire 50FT 10 AWG 600V SOOW Bulk Cable 10 Gauge 4 Conductor Portable Power Cable Extension Cord for Welder Generator Portable Light Circuits EV Car Charger Motor Lead
Kimbluth$104.2917 rev
Trending
90-day click momentumKimbluth SJTW 10/4 Wire 20FT Heavy Duty Copper Wire 10 Gauge 4 Conductor Outdoor Extension Power Cable for Battery Automotive Motor Industrial
Kimbluth$54.775.0★
NEMA L14-30 Generator Extension Cord - 30A 125/250V 10/4 SOOW - UL Listed - Iron Box Part # IBX-5805 (8 ft)
Iron Box$51.195.0★
Kimbluth SJTW 10/4 Wire 100FT Heavy Duty Copper Wire 10 Gauge 4 Conductor Outdoor Extension Power Cable for Battery Automotive Motor Industrial
Kimbluth$197.825.0★
10/4 SOOW Wire 50FT 10 AWG 600V SOOW Bulk Cable 10 Gauge 4 Conductor Portable Power Cable Extension Cord for Welder Generator Portable Light Circuits EV Car Charger Motor Lead
Kimbluth$104.294.9★
YDDECW 20ft 10/4 10 AWG SJTW 300V Wire (4 Conductor) - 10 Gauge SJTW Cable with UV-Resistant Jacket for Motor Leads Battery Chargers and Machine - 4 Conductor - 20 Feet Electrical Wire
YDDECW$47.294.8★
What buyers say about 10/4 wire
What buyers praise and complain about, mined from review topics.What buyers love
“Great value”
“Worked perfectly what I needed”
“high quality cable at a very reasonable price”
“It works just fine”
“finely stranded wire which is very flexible”
“Perfect for what I needed to hook up generator to house”
What buyers complain about
“Info about product incorrect”
Top return reasons
Common questions
- Is 10/4 wire profitable to sell on Amazon United States?
- The niche generates $95K/yr across 29 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -33.3%. Flapen's verdict: Skip it (39/100).
- How competitive is the 10/4 wire niche?
- 11 brands and 30 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 89% of demand.
- What do buyers complain about in 10/4 wire?
- Top complaints mined from reviews: Advertised Vs Actual Product. The return rate is 3.7%.
- What does it cost to enter the 10/4 wire niche?
- Listings span $15.78–$205.39; the average listing price is $73.88 (sweet spot $15–$100). The average incumbent carries 98 reviews — the moat a new listing must climb.