Skip to content

Engine Block Heater

Fail

Demand is soft, at -89.9% this quarter, so Engine Block Heater is a Fail.

Flapen Score
49
49 / 100
Ranks 3,500 of 7,287 Automotive niches · on the category median
Market size
$110K/yr340K searches / yr
90-day growth
-89.9%search demand this quarter
Competition
38%top-5 click share · 30 brands · 62 sellers

Flapen Score

Engine Block Heater against its category

The dotted line is the Automotive average. Past it, Engine Block Heater is stronger. Inside it, weaker.

49Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Engine Block Heater market on Amazon at a glance

Shoppers on Amazon United States searched for Engine Block Heater 340K times last year and spent an estimated $110K. The top 5 brands take 53% of clicks. Demand peaks in Jan–Feb–Nov–Dec. Flapen scores it 49 out of 100, a Fail.

01 · Demand

An estimated 0.5% of those searches ended in a purchase.

Shoppers searched for this 340K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.5% of those searches ended in a purchase. Searches in the last 90 days moved -89.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $110K a year.

Searches, last 12 months
340K
Growth, 90 days vs prior 90
-89.9%
Conversion, latest week
0.5%
Market size, estimated
$110Ka year
Peak month
January23.7× the quietest month
Top search term
engine block heater96K searches a year

02 · Price

A sale here is worth $60.94.

Listings sell for $60.94 on average, from $12.86 to $153.79. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 100 to 250 of them. At $60.94 that is $6K to $15K a year per listing.

Average price
$60.94inside the $15 to $100 sweet spot
Price range
$12.86–$153.79
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
8K–10K
Units per listing a year
100–250
Revenue per listing a year
$6K–$15K
Returns
3.4%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

61% of listings pay for placement with sponsored ads. 92% ship with Prime. On an average day, 18.2% of listings are out of stock. The average listing ranks #523 within Engines & Engine Parts. It carries 115 reviews at 4.29 stars, so a new listing needs social proof before a better product.

Sponsored listings
61%
Prime listings
92%
Out of stock, average day
18.2%
Average rank
#523in Engines & Engine Parts
Average rating
4.29 starsAmazon United States average 4.42 stars
Average reviews
115per listing
Listings tracked
49

04 · Newcomers

0 of last year's 8 launches cleared the first-year sales bar.

8 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 37 months on average, so the names here are settling in.

Launched, last 12 months
8
Successful launches
0Amazon's first-year sales bar
Average brand age
37 months

Products

Top Engine Block Heater products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take only 38% of clicks. An open shelf where new products get seen.

Brands

30 rising

Sellers

62

Top-5 brand share

53%

Top 20: 93%

Top-5 click share

38%

Top 20: 77%

Open market

42%

  • Brand 114%
  • Brand 213%
  • Brand 310%
  • Brand 49%
  • Brand 57%
  • Brand 65%

Demand

Engine Block Heater search demand

Weekly searches over the year, seasonality beneath. Pick a range.

50K30KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 23.7×

Search terms

Top Engine Block Heater search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • engine block heater96K/yr
  • block heater66K/yr
  • magnetic block heater37K/yr
  • engine heater19K/yr
  • automotive replacement engine heaters2K/yr
  • magnetic oil pan heater16K/yr
  • block heater for diesel engine8K/yr
  • magnetic heater11K/yr
  • diesel engine heater8K/yr
  • magnetic engine block heater14K/yr

Reviews and returns

What reviews say buyers love and hate about Engine Block Heater

We read the reviews and the return reasons for every product selling here.

13%of positive reviews mention “Quality-Overall”
14%of negative reviews mention “Heating”
3.4%of orders come back
“Small block heater NOT”
A buyer, on “Heating”14% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

16 topics

NegativePositive

FAQ

Common Engine Block Heater questions

Answered from the same tracked data.