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K-Seal will permanently repair coolant leaks in the radiator, head, head gasket, block and all hard parts of the cooling system. Independently tested to meet ASTM D3147 K-Seal is safe for use in all water cooled engines.
No need to drain or flush, just Shake, Pour & Go!
No need to drain or flush, just Shake, Pour & Go!
The #1 bestselling coolant leak repair in the UK and the USA.
Millions sold worldwide.
Millions sold worldwide.