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10 bestRadiator Sealerof December 2024

112M consumers helped this year.

1

Bar's Leaks 1111 Head Gasket Fix - 24 oz.
Bar's Leaks 1111 Head Gasket Fix - 24 oz.

Bar's Leaks

10.0

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2

J-B Weld 2110 Metal Fuel Tank Repair Kit , Gray
J-B Weld 2110 Metal Fuel Tank Repair Kit , Gray

JB Weld

10.0

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3

K-SEAL Coolant Leak Repair, ST9501 472ml Multi-Purpose Formula Stops Leaks in the Radiator, Head Gasket, Block, Water Pump Casing, Heater Core, Freeze Plug - Pour and Go - Designed for Canadian Market
K-SEAL Coolant Leak Repair, ST9501 472ml Multi-Purpose Formula Stops Leaks in the Radiator, Head Gasket, Block, Water Pump Casing, Heater Core, Freeze Plug - Pour and Go - Designed for Canadian Market

K-Seal

9.9

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4

POR-15 Fuel Tank Sealer - 16 oz Gray - Stops Rust, Corrosion, & Leaks | Seals Pinholes & Seams | Non-Porous, Flexible Film | Resistant to All Fuels, Alcohols, & Additives
POR-15 Fuel Tank Sealer - 16 oz Gray - Stops Rust, Corrosion, & Leaks | Seals Pinholes & Seams | Non-Porous, Flexible Film | Resistant to All Fuels, Alcohols, & Additives

POR-15

9.7

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5

511 Impregnator Sealer
511 Impregnator Sealer

Miracle Sealants

9.6

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6

J-B Weld KwikWeld Pro
J-B Weld KwikWeld Pro

JB Weld

9.3

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7

Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams
Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams

Bar's Leaks

9.1

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8

K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair

K-Seal

8.9

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9

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

8.6

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10

Bar's Leaks 1196 Grey Radiator Stop Leak - 11 oz.
Bar's Leaks 1196 Grey Radiator Stop Leak - 11 oz.

Bar's Leaks

8.4

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