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10 bestRadiator Leak Sealerof February 2025

112M consumers helped this year.

1

K-Seal Permanent Coolant Leak Repair for Cooling Systems Head Gaskets Radiators
K-Seal Permanent Coolant Leak Repair for Cooling Systems Head Gaskets Radiators

Generic

10.0

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2

Car Radiator & Hose Stop Leak Repair Additive Anti Corrosion 250ml Repairs Weld Cooling System Rads
Car Radiator & Hose Stop Leak Repair Additive Anti Corrosion 250ml Repairs Weld Cooling System Rads

ARZER

10.0

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3

K-Seal Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant
K-Seal Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant

K-Seal

9.8

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8% off

4

Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml

Wynn's

9.6

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5

K-Seal HD Coolant Leak Repair 472ml
K-Seal HD Coolant Leak Repair 472ml

K-Seal

9.5

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Holts Sealit Leak Repair 250ml, (Packing May Vary)

Holts Sealit Leak Repair 250ml, (Packing May Vary)

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Holts Radweld Radiator and Coolant System Leak Repair 250ml No

Holts Radweld Radiator and Coolant System Leak Repair 250ml No

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Bars Powdered Radiator, Engine Block and Gasket Leak Sealant 15 gr

Bars Powdered Radiator, Engine Block and Gasket Leak Sealant 15 gr

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Bar's BARSRSC1L91 Refrigeration System Leak Sealant Additive, Radiator, 200 ml

Bar's BARSRSC1L91 Refrigeration System Leak Sealant Additive, Radiator, 200 ml

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6

Holts 1831469 Radweld Plus New Formula 250ml
Holts 1831469 Radweld Plus New Formula 250ml

Holts

9.2

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5% off

7

LIQUI MOLY Pro-Line Radiator Stop Leak K | 250 ml | Cooler additive | SKU: 5178
LIQUI MOLY Pro-Line Radiator Stop Leak K | 250 ml | Cooler additive | SKU: 5178

Liqui Moly

9.0

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8

AMK® Holts Radweld Stops Leaks In Radiator & Hoses For Car Cooling System 250ml Repairs Leak
AMK® Holts Radweld Stops Leaks In Radiator & Hoses For Car Cooling System 250ml Repairs Leak

AMK

8.7

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9

FERNOX Central Heating Leak Sealer F4 Express 400ml - Fast Results - 30 sec - (Replacement 58232)
FERNOX Central Heating Leak Sealer F4 Express 400ml - Fast Results - 30 sec - (Replacement 58232)

Fernox

8.5

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22% off

10

HOLTS Wondarweld - 500ml - WW500
HOLTS Wondarweld - 500ml - WW500

Holts

8.2

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