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Steel Seal Head Gasket Repair
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Steel Seal Head Gasket Repair

(1)View Reviews
Product code: ABSS
£42.00 incl. VAT
Next Day Delivery Available
Click & Collect Available
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Product Information
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Customer Reviews

Steel Seal is the simplest, most effective head gasket repair on the market.

If you are looking for a simple DIY pour in head gasket fix that will save you thousands against a mechanical repair then look no further than Steel Seal head gasket repair.

Steel Seal Head Gasket Repair creates a seal (as the name suggests) that will set like steel, this will repair the leaks in the cylinder head gasket permanently.

Steel Seal can be used in all types of vehicles and engines with a water cooling system regardless of whether your vehicle is petrol or diesel. Steel Seal Head Gasket Repair has a solid track record of repairing cars, bikes, vans, pickups, 4x4's, tractors, lorries and was once even used in an aeroplane!

Directions For Use:

1. Make sure the engine is cold and remove the radiator cap.

2. Ensure there is plenty of water/coolant in the vehicle, but enough room for Steel Seal to make its way into the system. If you need to add coolant, add Steel Seal first and top up with coolant before starting the engine.

3. Pour Steel Seal directly into the radiator or expansion tank and tighten the radiator cap.

4. Turn the heater and fan to maximum. Start the engine and run your vehicle up to temperature (please note this can take between 15-25 minutes depending on the condition of your vehicle). Once your vehicle reaches operating temperature run for 30 minutes.

5.Turn off vehicle and allow to cool completely. Top up with antifreeze/water as necessary, replace radiator cap tightly.

For Best Results: 

  • Unless you are confident that no coolant additives have been used in the past, we recommend flushing the cooling system with clean water.
  • Steel Seal is compatible with most antifreezes but also works in clean water. We do not recommend using Steel Seal with long life / extended antifreeze. If completing the treatment with water only, simply follow the steps above with plain water and add antifreeze afterwards for best results.

Additional Directions For Back Pressure: 

These directions are for vehicles with bubbling in the header tank or air forcing past the coolant cap which could prevent Steel Seal from getting to the head gasket.

  • Remove plugs one at a time until bubbling stops to locate the problem cylinder causing the back pressure or bubbling in the overflow tank.
  • If accessible, remove injector wire from that cylinder. This will limit the proportion of unburned fuel going into the combustion chamber.
  • If you cannot find the spark plug/cylinder that is causing the back pressure, drain the coolant level down just to the top of the radiator core and run the engine with the radiator cap off, or leave the expansion cap off the expansion bottle with water only just visible.

UK Mainland Delivery (Excludes Northern Ireland)


FREE Standard Delivery on orders over £30 (Upgrade to 1 - 2 business days Delivery for £1.99)

£7.99 1 - 2 Day Delivery on orders under £30 (Business days only)

£5.99 3 - 5 Day Delivery on orders under £30 (Business days only)

Please allow 1 business day dispatch time. Although we aim to dispatch all orders on a same day basis, we generally have to wait until the next business day for the couriers to collect from us. Orders placed before 12:00 have the best chance of arriving on time.

Business days are Monday to Friday only


Click & Collect

Available Free of Charge from our branches

Harrogate - HG2 8RB

Malton - YO17 6YF

Scarborough - YO12 4HA

Selby - YO8 8LZ

Thirsk - YO7 3FF

York - Layerthorpe - YO31 7YW

York - Poppleton - YO26 6RX



We have a no quibble 14 day returns policy.

Please let us know within 14 days of receiving your item(s)

You will then have 14 days to return the item to us

We will then process the refund within 14 days of receiving the returned item(s)


leave a review
Roger C Hawkins
Works great. I was optimistic at first, mechanic in a can. So far so good after two weeks.