Head Gasket Sealer
FailThe top 5 brands take 100% of clicks, so Head Gasket Sealer is a Fail.
- Flapen Score
- 49 / 100Ranks 3,500 of 7,287 Automotive niches · on the category median49
- Market size
- $750K/yr252K searches / yr
- 90-day growth
- -8.6%search demand this quarter
- Competition
- 69%top-5 click share · 5 brands · 90 sellers
Flapen Score
Head Gasket Sealer against its category
The dotted line is the Automotive average. Past it, Head Gasket Sealer is stronger. Inside it, weaker.
Market
The Head Gasket Sealer market on Amazon at a glance
Shoppers on Amazon United States searched for Head Gasket Sealer 252K times last year and spent an estimated $750K. All 5 brands take every click. Flapen scores it 49 out of 100, a Fail.
01 · Demand
An estimated 6.3% of those searches ended in a purchase.
Shoppers searched for this 252K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 6.3% of those searches ended in a purchase. Searches in the last 90 days moved -8.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $750K a year.
- Searches, last 12 months
- 252K
- Growth, 90 days vs prior 90
- -8.6%
- Conversion, latest week
- 6.3%
- Market size, estimated
- $750Ka year
- Peak month
- April1.3× the quietest month
- Top search term
- head gasket sealer92K searches a year
02 · Price
A sale here is worth $47.15.
Listings sell for $47.15 on average, from $11.84 to $133.38. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 750 to 1,000 of them. At $47.15 that is $35K to $47K a year per listing.
- Average price
- $47.15inside the $15 to $100 sweet spot
- Price range
- $11.84–$133.38
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- $35K–$47K
- Returns
- 3.1%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% 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 #265 within Fillers, Adhesives & Sealants. It carries 2,520 reviews at 4.04 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #265in Fillers, Adhesives & Sealants
- Average rating
- 4.04 starsAmazon United States average 4.42 stars
- Average reviews
- 2,520per listing
- Listings tracked
- 13
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 76 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 76 months
Products
Top Head Gasket Sealer products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 8, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
BlueDevil Products 38386 Head Gasket Sealer - 1 Quart
- Price
- $48.63
- Rating
- 4.1/5
- Reviews
- 2,616
- Age
- 19y ago

Bars Leaks HG-1 HEAD SEAL Blown Head Gasket Repair
- Price
- $32.46
- Rating
- 4.1/5
- Reviews
- 4,755
- Age
- 22y ago

BlueDevil Products 00209 Pour-N-Go Head Gasket Sealer - 16 Ounce
- Price
- $24.89
- Rating
- 4.1/5
- Reviews
- 1,654
- Age
- 14y ago

K-Seal ST3501 Pour & Go Head Gasket Sealer 16 oz Repairs Blown Head Gaskets Cracked Heads & Engine Blocks
- Price
- $22.51
- Rating
- 4.1/5
- Reviews
- 2,109
- Age
- 11y ago

Steel Seal Blown Head Gasket Fix Repair Sealer for 4 Cylinder Engines
- Price
- $87.82
- Rating
- 3.7/5
- Reviews
- 417
- Age
- 11y ago
Trending
estimated 90-day click momentum
BlueDevil Products 49499 Oil Stop Leak - 8 Ounce
- Price
- $18.92
- Rating
- 4.1/5
- Reviews
- 3,440
- Age
- 19y ago

K-Seal ST5501 Multi-Purpose One Step Coolant Leak Repair 8oz Pour and Go Mixes with All Antifreeze No Flushing Required
- Price
- $12.56
- Rating
- 4.3/5
- Reviews
- 13,323
- Age
- 17y ago

Steel Seal Blown Head Gasket Fix Repair Sealer - 6 Cylinder
- Price
- $133.38
- Rating
- 3.8/5
- Reviews
- 673
- Age
- 11y ago

Bars Leaks 1100 Head Gasket Repair Sealant 20 oz
- Price
- $12.18
- Rating
- 4.3/5
- Reviews
- 762
- Age
- 20y ago

BlueDevil Products 38386 Head Gasket Sealer - 1 Quart
- Price
- $48.63
- Rating
- 4.1/5
- Reviews
- 2,616
- Age
- 19y ago
Newest
by launch date
BlueDevil Products 00212 Head Gasket Repair - 16 Ounce
- Price
- $46.06
- Rating
- 3.9/5
- Reviews
- 25
- Age
- 6y ago

K-Seal ST3501 Pour & Go Head Gasket Sealer 16 oz Repairs Blown Head Gaskets Cracked Heads & Engine Blocks
- Price
- $22.51
- Rating
- 4.1/5
- Reviews
- 2,109
- Age
- 11y ago

Steel Seal Blown Head Gasket Fix Repair Sealer for 4 Cylinder Engines
- Price
- $87.82
- Rating
- 3.7/5
- Reviews
- 417
- Age
- 11y ago

Steel Seal Blown Head Gasket Fix Repair Sealer - 8 Cylinder
- Price
- $132.95
- Rating
- 3.6/5
- Reviews
- 714
- Age
- 11y ago

Steel Seal Blown Head Gasket Fix Repair Sealer - 6 Cylinder
- Price
- $133.38
- Rating
- 3.8/5
- Reviews
- 673
- Age
- 11y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 69% of clicks. Leaders hold, but buyers still shop past them.
Brands
5 falling
Sellers
90
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
69%
Top 20: 100%
Open market
0%
- BlueDevil Products39%
- Bar's Leaks29%
- STEEL SEAL17%
- K-Seal13%
- Blue Magic2%
Demand
Head Gasket Sealer search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Head Gasket Sealer search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- head gasket sealer92K/yr
- blue devil head gasket sealer58K/yr
- blue devil20K/yr
- steel seal head gasket sealer15K/yr
- steel seal14K/yr
- bars leaks head gasket sealer7K/yr
- liquid glass head gasket sealer4K/yr
- head gasket sealant6K/yr
- head gasket repair9K/yr
- bluedevil head gasket repair4K/yr
Reviews and returns
What reviews say buyers love and hate about Head Gasket Sealer
We read the reviews and the return reasons for every product selling here.
“Arrived leaking”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Head Gasket Sealer questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









