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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 Products Leak HG-1 Head Seal Blown Head Gasket Repair

Bar's Leaks

9.9

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2

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

Permatex

9.8

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3

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

Bar's Leaks

9.6

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4

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

K-Seal

9.4

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5

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

Bar's Leaks

9.2

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6

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

Permatex

8.9

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7

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

AUTOXBERT

8.7

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8

Evergreen HSHB4030C Cylinder Head Gasket Set Head Bolt
Evergreen HSHB4030C Cylinder Head Gasket Set Head Bolt

Evergreen Pet Supplies

8.4

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9

Fel-Pro 8891Pt1 Head Gasket
Fel-Pro 8891Pt1 Head Gasket

Fel-Pro

8.1

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10

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

BlueDevil Products

7.8

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