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Heater Core Flush Kit

Fail

Demand is soft, at -72.7% this quarter, so Heater Core Flush Kit is a Fail.

Flapen Score
48
48 / 100
Ranks 3,828 of 7,287 Automotive niches · −1 vs the category median of 49
Market size
$183K/yr119K searches / yr
90-day growth
-72.7%search demand this quarter
Competition
67%top-5 click share · 17 brands · 80 sellers

Flapen Score

Heater Core Flush Kit against its category

The dotted line is the Automotive average. Past it, Heater Core Flush Kit is stronger. Inside it, weaker.

48Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Heater Core Flush Kit market on Amazon at a glance

Shoppers on Amazon United States searched for Heater Core Flush Kit 119K times last year and spent an estimated $183K. The top 5 brands take 72% of clicks. Demand peaks in Jan–Feb–Dec. Flapen scores it 48 out of 100, a Fail.

01 · Demand

An estimated 4.9% of those searches ended in a purchase.

Shoppers searched for this 119K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.9% of those searches ended in a purchase. Searches in the last 90 days moved -72.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $183K a year.

Searches, last 12 months
119K
Growth, 90 days vs prior 90
-72.7%
Conversion, latest week
4.9%
Market size, estimated
$183Ka year
Peak month
January12.5× the quietest month
Top search term
heater core flush kit61K searches a year

02 · Price

A sale here is worth $31.51.

Listings sell for $31.51 on average, from $9.28 to $84.10. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At $31.51 that is $3K to $8K a year per listing.

Average price
$31.51inside the $15 to $100 sweet spot
Price range
$9.28–$84.10
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
5K–6K
Units per listing a year
100–250
Revenue per listing a year
$3K–$8K
Returns
2.6%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

72% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.3% of listings are out of stock. The average listing ranks #240 within Cooling & Water Pump Tools. It carries 327 reviews at 4.27 stars, so a new listing needs social proof before a better product.

Sponsored listings
72%
Prime listings
100%
Out of stock, average day
1.3%
Average rank
#240in Cooling & Water Pump Tools
Average rating
4.27 starsAmazon United States average 4.42 stars
Average reviews
327per listing
Listings tracked
18

04 · Newcomers

1 of last year's 7 launches cleared the first-year sales bar.

7 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 51 months on average, so the names here are settling in.

Launched, last 12 months
7
Successful launches
1Amazon's first-year sales bar
Average brand age
51 months

Products

Top Heater Core Flush Kit 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 67% of clicks. Leaders hold, but buyers still shop past them.

Brands

17 falling

Sellers

80

Top-5 brand share

72%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

23%

  • Brand 121%
  • Brand 218%
  • Brand 311%
  • Brand 411%
  • Brand 510%
  • Brand 65%

Demand

Heater Core Flush Kit search demand

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

5K3KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Dec · busiest ÷ quietest = 12.5×

Search terms

Top Heater Core Flush Kit search terms shoppers use

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

  • heater core flush kit61K/yr
  • radiator flush tool5K/yr
  • heater core flush tool21K/yr
  • coolant flush gun10K/yr
  • coolant flush tool4K/yr
  • heater core flush11K/yr
  • heater core flush kit automotive4K/yr
  • ram heater core flush kit3K/yr

Reviews and returns

What reviews say buyers love and hate about Heater Core Flush Kit

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

18%of positive reviews mention “Quality-Overall”
13%of negative reviews mention “Quality-Overall”
2.6%of orders come back
“Poor quality”
A buyer, on “Quality-Overall”13% 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.

18 topics

NegativePositive

FAQ

Common Heater Core Flush Kit questions

Answered from the same tracked data.