10 bestHead Gasket Sealersof January 2026
112M consumers helped this year.
1
Bar's Products Leak HG-1 Head Seal Blown Head Gasket Repair
Bar's Leaks
9.9
2
BlueDevil Pour-N-Go Head Gasket Sealer - 16 Ounce (00209)
BlueDevil Products
9.8
3
K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair
K-Seal
9.7
4
K-SEAL Permanent COOLANT Leak Repair Liquid 236ml - Stop Radiator Leak, Head Gasket Repair,Block/Head Sealer-No Draining/No Flushing,for All Cars, Light Trucks, Heavy Trucks & Buses
K-Seal
9.5
5
J-B Weld 32926 Ultimate Blue RTV Silicone Gasket Maker and Sealant - 9.5 oz.
J-B Weld
9.3
6
Evergreen HSHB4030C Cylinder Head Gasket Set Head Bolt
Evergreen Pet Supplies
9.1
7
Bar's Products Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz
Bar's Leaks
8.8
8
Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube
Permatex
8.5
9
AUTOXBERT 105g 3.7oz High Temperature Instant RTV Silicone Sealant Gasket Maker Bonding Engine Parts Valve Oil Resistant Waterproof Temp
AUTOXBERT
8.2
10
WFLNHB Head Gasket Replacement for 1999 2000 2001 Chevy GMC Buick Cadillac 4.8L 5.3L HS9292PT HS9292PT-1 HS54331 HS54331A
WFLNHB
8.0
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