head gasket sealer
Skip it52/100a small market ($750K/yr) — head gasket sealer doesn't clear our bar today.
Market/yr
$750K
Growth (1y)
+153.1%
Products
13
Brands
5
was 8 a year ago
Sellers
90
Price range
$11.84–$133.38
Returns
3.1%
Rating
4.0★
Skip it
Scored 52/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 104 weeks — +153.1% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.3×
Competition
- BlueDevil Products39%
- Bar's Leaks29%
- STEEL SEAL17%
- K-Seal13%
- Blue Magic2%
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them. 5 brands and 90 sellers compete here.
Brands
5 falling
was 8 a year ago
Sellers
90
Top 5 brand share
100%
Product shelf
All 13 tracked products in this niche.
BlueDevil Products 38386 Head Gasket Sealer - 1 Quart
BlueDevil Products
$48.634.1★2,616 reviews
Bars Leaks HG-1 HEAD SEAL Blown Head Gasket Repair
Bar's Leaks
$32.464.1★4,755 reviews
BlueDevil Products 00209 Pour-N-Go Head Gasket Sealer - 16 Ounce
BlueDevil Products
$24.894.1★1,654 reviews
K-Seal ST3501 Pour & Go Head Gasket Sealer 16 oz Repairs Blown Head Gaskets Cracked Heads & Engine Blocks
K-Seal
$22.514.1★2,109 reviews
Steel Seal Blown Head Gasket Fix Repair Sealer for 4 Cylinder Engines
STEEL SEAL
$87.823.7★417 reviews
Bars Leaks 1100 Head Gasket Repair Sealant 20 oz
Bar's Leaks
$12.184.3★762 reviews
Steel Seal Blown Head Gasket Fix Repair Sealer - 8 Cylinder
STEEL SEAL
$132.953.6★714 reviews
K-Seal ST5501 Multi-Purpose One Step Coolant Leak Repair 8oz Pour and Go Mixes with All Antifreeze No Flushing Required
K-Seal
$12.564.3★13,323 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“it still not leaking”
“Its very effective”
“Great Product”
“Works as advertised”
“Worth the purchase”
“Followed the directions”
“Stopped my coolant leak”
“that it would not affect the repair”
“easy to use”
“2 years - still working”
What buyers complain about
“Arrived leaking”
“Did not work”
“I had a moderate coolant leak somewhere”
“Repairs are ridiculous”
“Car started overheating again”
“clogs”
“More expensive than cheap fixes”
“Lasted about a month then it failed dramatically”
“Lasted exactly 7 miles when followed directions exactly ending in large fail”
“Trash”
Top return reasons
- Leak-Proof30%
- Functionality-Overall15%
- Coolant10%
- Compatibility-Overall10%
- Maintenance And Repair6%
- Advertised Vs Actual Product6%
- Value For Money5%
- Defective Material/Parts4%
- Product Condition2%
- Size-Overall2%