Wynn's Radiator stop leak 375ml Wynns - 1 View larger

Wynn's Radiator stop leak 375ml


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5-7 Day Lead time

R 55 incl. VAT


Wynn’s Radiator Stop Leak is a unique blend of non-ferrous fibres and surface active agents which combine to plug hairline cracks and pinholes
associated with cavitation pitting and corrosion.
It will not cause any blockage of the radiator core or cooling matrix, nor will it harm any cooling system components.
Radiator Stop Leak is compatible with all Ethylene Glycol and OAT coolants as well as Aluminium and rubber hose safe.
It is recommended that Wynn’s Radiator Stop Leak is carried in recovery vehicles as an essential emergency repair item.


Effect emergency repairs to prevent loss of coolant
Enables extended trips to be completed without costly repairs or time wasted
Will stop head gasket seepage preventing oil/water mixing
Simply removed by draining when maintenance needs to be carried out.
Plugs holes up to 0.7mm


Shake bottle well
Idle engine with heater on, add entire contents to radiator
Ensure radiator cap is firmly replaced

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