Part No : K5501D

• Fixes most leaks in water-cooled engines
• A permanent repair, guaranteed for the lifetime of the engine
• Scientifically tested
• Trusted by professionals

Coolant leaks don’t have to result in costly repair bills – simply add K-Seal to your coolant system for a quick and permanent fix. K-Seal is scientifically tested, trusted by millions of customers worldwide, and the only coolant leak repair fluid carried by the AA, the UK’s largest roadside repair company.

Just pour & go

K-Seal couldn’t be simpler to use. Just shake the bottle, add the fluid to your coolant system, and run your engine as normal. K-Seal’s unique formula will seek out holes and cracks, and permanently seal them, with no adverse impact on the efficiency of your engine cooling.

How to use K-Seal

1. Shake the bottle vigorously and add the entire contents to the radiator or header/expansion tank

If adding to the radiator do not pour directly onto the radiator core. K-Seal products are compatible with all types of antifreeze / coolant and are not affected by other additives that may already be in the cooling system.

It does not matter if you add K-Seal products to a cold or hot engine but take care when working with a hot engine.

For very small cooling systems e.g. motorbikes, it is possible to add just part of the bottle but you must make sure that the contents are extremely well mixed first.

2. Run the engine up to operating temperature

The quickest way is to take the vehicle for a gentle drive otherwise leave the engine idling until the temperature gauge reaches the normal level.

3. Either replace the cooling system contents or leave K-Seal in the system

After K-Seal has made a repair it is not necessary to leave it in the system because the repair is permanent. You can either choose to replace the contents of the cooling system or leave the original K-Seal product in the system.