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Rear Main Seal

Maybe

The average product has only 227 reviews. But demand is soft, at -15.5% this quarter, so Rear Main Seal is a Maybe.

Flapen Score
51
51 / 100
Top 39% of 7,287 Automotive niches · +2 vs the category median of 49
Market size
$200K/yr258K searches / yr
90-day growth
-15.5%search demand this quarter
Competition
36%top-5 click share · 17 brands · 113 sellers

Flapen Score

Rear Main Seal against its category

The dotted line is the Automotive average. Past it, Rear Main Seal is stronger. Inside it, weaker.

51Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Rear Main Seal market on Amazon at a glance

Shoppers on Amazon United States searched for Rear Main Seal 258K times last year and spent an estimated $200K. The top 5 brands take 82% of clicks. Demand peaks in Mar. Flapen scores it 51 out of 100, a Maybe.

01 · Demand

An estimated 4.0% of those searches ended in a purchase.

Shoppers searched for this 258K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.0% of those searches ended in a purchase. Searches in the last 90 days moved -15.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $200K a year.

Searches, last 12 months
258K
Growth, 90 days vs prior 90
-15.5%
Conversion, latest week
4.0%
Market size, estimated
$200Ka year
Peak month
March1.6× the quietest month
Top search term
rear main seal135K searches a year

02 · Price

A sale here is worth $19.46.

Listings sell for $19.46 on average, from $6.68 to $69.20. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 100 to 250 of them. At $19.46 that is $2K to $5K a year per listing.

Average price
$19.46inside the $15 to $100 sweet spot
Price range
$6.68–$69.20
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
10K–13K
Units per listing a year
100–250
Revenue per listing a year
$2K–$5K
Returns
3.5%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads.

95% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #548 within Bearings & Seals. It carries 227 reviews at 4.51 stars, so a new listing needs social proof before a better product.

Sponsored listings
95%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#548in Bearings & Seals
Average rating
4.51 starsAmazon United States average 4.42 stars
Average reviews
227per listing
Listings tracked
58

04 · Newcomers

2 of last year's 2 launches cleared the first-year sales bar.

2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 59 months on average, so the names here are settling in.

Launched, last 12 months
2
Successful launches
2Amazon's first-year sales bar
Average brand age
59 months

Products

Top Rear Main Seal 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 36% of clicks. An open shelf where new products get seen.

Brands

17 rising

Sellers

113

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

36%

Top 20: 66%

Open market

12%

  • Brand 147%
  • Brand 214%
  • Brand 39%
  • Brand 46%
  • Brand 56%
  • Brand 66%
  • Open — no brand owns it (11 brands, 12%)

Demand

Rear Main Seal search demand

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

6K4KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Mar · busiest ÷ quietest = 1.6×

Search terms

Top Rear Main Seal search terms shoppers use

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

  • rear main seal135K/yr
  • crankshaft seal49K/yr
  • front crankshaft seal19K/yr
  • front main seal16K/yr
  • rear main seal kit19K/yr
  • crank seal10K/yr
  • crank shaft seal5K/yr
  • rear crankshaft seal5K/yr

Reviews and returns

What reviews say buyers love and hate about Rear Main Seal

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

36%of positive reviews mention “Size-Overall”
38%of negative reviews mention “Leak-Proof”
3.5%of orders come back
“Leaking”
A buyer, on “Leak-Proof”38% 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.

17 topics

NegativePositive

FAQ

Common Rear Main Seal questions

Answered from the same tracked data.