10 bestHead Gasket Sealersof October 2025
112M consumers helped this year.
1

Bar's Products Leak HG-1 Head Seal Blown Head Gasket Repair
Bar's Leaks

9.9
2

Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube
Permatex

9.8
3

Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5)
Bar's Leaks

9.6
4

K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair
K-Seal

9.4
5

Bar's Products Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz
Bar's Leaks

9.2
6

Permatex 20539 Indian Head Gasket Shellac Compound, 2 oz.
Permatex

8.9
7

AUTOXBERT 105g 3.7oz High Temperature Instant RTV Silicone Sealant Gasket Maker Bonding Engine Parts Valve Oil Resistant Waterproof Temp
AUTOXBERT

8.7
8

Evergreen HSHB4030C Cylinder Head Gasket Set Head Bolt
Evergreen Pet Supplies

8.4
9

Fel-Pro 8891Pt1 Head Gasket
Fel-Pro

8.1
10

BlueDevil Head Gasket Sealer - 32 ounce(38386)
BlueDevil Products

7.8

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