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12 volt coil with internal resistor

Worth a look

Shows a sweet-spot price point ($34.97 avg), but a small market ($96K/yr) keeps it on the watch list.

Market size 24Growth 63Conversion 73Competition 50Returns 33Price range 95Avg price 95Brand share 24Review moat 74Quality gap 38

Avg price

Incredible$34.97

avg listing price — sweet spot $15–$100

Price range

Incredible$17.14–$66.84

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

Review moat

Good526.5

avg incumbent reviews — the moat a new listing must climb

Conversion

Good6.8%

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

Growth

Good+40.2%

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

Competition

Okay55%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay4.3%

return rate — above 5% kills the launch gate

Market size

Bad$96K

$96K/yr · 40K searches

Brand share

Bad91%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, 12 volt coil with internal resistor is a $96K/yr Amazon United States market (40K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 50/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

12 volt coil with internal resistor market data

Units sold / yr
3K–4K
avg 100–250/product
Revenue / yr
$105K–$140K
units × avg price
Conversion rate
6.8%
Avg BSR
#383
Page quality
0%
Prime
100%
Sponsored
38%
Out of stock
0.7%
Avg brand age
64 months
Avg seller age
172 days

Competition & brand share

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 rising

Sellers

106

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

55%

Top 20: 96%

Open market

5%

  • Pertronix41%
  • Spectra Premium23%
  • Parts Player14%
  • XYZIL8%
  • CNPAPC5%
  • Standard Motor Products4%
  • Open — no brand owns it (4 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +40.2% search growth over the last 90 days.
1K750Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May · busiest ÷ quietest = 2.2×

Top 12 volt coil with internal resistor search terms

  • 12v coil9K/yr
  • pertronix flamethrower coil5K/yr
  • 12 volt coil6K/yr
  • 12v ignition coil6K/yr
  • 12 volt coil with internal resistor5K/yr
  • 12 volt ignition coil4K/yr
  • pertronix coil5K/yr
All search terms

Top 12 volt coil with internal resistor 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%4%$4K8%$8K12%$11K16%$15K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about 12 volt coil with internal resistor

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

What buyers love

Quality-Overall27%

“Great product, solid quality and works as intended; very easy to install”

Advertised Vs Actual Product17%

“Worked as expected”

Size-Overall11%

“Works and fits”

Efficiency11%

“Worked perfectly”

Assembly/Installation7%

“Easy to install”

Motor Power4%

“Must work great, tractor started”

Value For Money4%

“Good price”

Strength4%

“Really felt impressive horsepower”

Fuel Efficiency3%

“Just what my 66 Chevy needed to get it running good again”

Add-Ons/Attachments3%

“It looks really nice all hooked up to my engine”

What buyers complain about

Durability39%

“Quit working after 2 months”

Functionality-Overall9%

“i did not work”

Product Condition9%

“Product looks like it had been used”

Size-Overall7%

“I hope it was just the wrong size”

Flammable5%

“It sparks”

Defective Material/Parts5%

“don't think amazon will sell defective items that are not usable”

Heating5%

“after a few cranks the coil got so hot i could not touch it”

Leak-Proof5%

“leaked allover the engine”

Quality-Overall5%

“Low Quality Studs”

Flexibility5%

“wont tighten back up”

Top return reasons

Functionality-Overall22%
Defective Material/Parts16%
Compatibility-Overall14%
Size-Overall10%
Product Condition6%
Advertised Vs Actual Product6%
Leak-Proof5%
Durability2%
Value For Money2%
Assembly/Installation2%

Common questions

Is 12 volt coil with internal resistor profitable to sell on Amazon United States?
The niche generates $96K/yr across 24 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +40.2%. Flapen's verdict: Worth a look (50/100).
How competitive is the 12 volt coil with internal resistor niche?
10 brands and 106 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in 12 volt coil with internal resistor?
Top complaints mined from reviews: Durability, Functionality-Overall, Product Condition. The return rate is 4.3%.
When does demand for 12 volt coil with internal resistor peak?
Demand peaks in Apr–May; the busiest month runs 2.2× the quietest.
What does it cost to enter the 12 volt coil with internal resistor niche?
Listings span $17.14–$66.84; the average listing price is $34.97 (sweet spot $15–$100). The average incumbent carries 527 reviews — the moat a new listing must climb.