Prestone Head Gasket & Engine block repair (400ml)

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Prestone Head Gasket & Engine block repair 

This head gasket and engine block repair couldn't be easier to use, just simply pour and fix permanently. This is an advanced sealer which can be used at home to fix leaks anywhere in the cooling system of your car engine.

Preston head gasket & engine block repair benefits;

  • Professional permanent seal in minutes
  • No clogging or damaging effect
  • Guaranteed for any car and any coolant/antifreeze
  • Anti-corrosion formula and protects against future leaks
  • Simply pour and fix, for a permanent repair 

Prestone Head Gasket and Engine Block Repair provides a fast and professional solution for fixing leaks in;

  • Engine blocks
  • Cylinder heads
  • Head gaskets
  • Freeze plugs
  • Water pump gaskets
  • Radiators 
  • Heater cores
  • Hoses

Guaranteed to be compatible with all makes and models of vehicles, Prestone's head gasket and engine block repair can be added to any colour of existing coolant or antifreeze, offering you peace of mind that you are choosing the right sealant for your car. It can treat up to 14 litres of coolant and can be used in small, medium and large cooling systems.


You don't need to drain or flush the system first. The unique US formula fixes and works through the entire cooling system to seek out and fix leaks in a matter of minutes, it also protects corrosion and future leaks. 

This product has not been reviewed yet.

IMPORTANT NOTE ABOUT DELIVERY OF ELECTRIC BIKES:  We only deliver electric bikes to local areas within a 30 mile radius of our store in Durham. Some of the postcodes we cover include NE, SR, TS, DH, DL - If you live more than 30 miles from our Durham Store (DH1 5AU) then please call us before ordering to enquire about delivery. WE DO NOT SHIP ELECTRIC BIKES TO OTHER LOCATIONS.

OTHER GOODS:  Please note that there are restrictions on shipping some product types to certain locations. We are unable to ship any liquid or aerosol products outside the UK. We also have to use a courier service for aerosol products within the UK.

We offer FREE DELIVERY to UK locations on orders over £50.00 when ordering via the website, however, we are not able to offer free delivery to certain postcodes in the Highlands of Scotland and other UK Island and Offshore locations on orders that weight over 15kg or were the parcel is over 1 metre in length. We would like to apologise for this but our couriers charge a premium to deliver goods to these locations. Note that for courier deliveries we use a combination of Royal Mail Special Delivery (for smaller items to certain postcodes) and Parcelforce or UK Mail.

International Deliveries: We currently only ship goods within Europe unless the item is displayed as 'Worldwide Shipping Available'. Please note that we are unable to ship any liquids or aerosol products outside the UK.

If you wish to return any item please contact our Sales Team in advance to obtain a Returns Authorisation Number. Please note that we accept goods back within one month of the initial purchase date provided that the goods have not been used or fitted and that the original packaging is in 'as new' condition.

Please note that we are not able to refund or cancel any orders for custom made goods. This includes Rally Mudflaps, Ulter Sports Exhausts and Silver Rear Bumper Protectors. All of these goods are custom made to order so once we have processed your order and the production of the part has commenced we will not be able to process a refund.