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Steel Seal Head Gasket Sealer 16 oz for 4 cylinder cars - Free 2-3 Day Shipping For Sale
Steel Seal Head Gasket Sealer 16 oz for 4 cylinder cars - Free 2-3 Day Shipping

Steel Seal Head Gasket Sealer 16 oz for 4 cylinder cars - Free 2-3 Day Shipping

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Steel Seal Head Gasket Repair

SIMPLE POUR IN SOLUTION: FIXES BLOWN HEAD GASKETS: 99% SUCCESS RATE: MONEY BACK GUARANTEE Steel Seal - Permanent Head Gasket Repair for all 4 cylinder cars - 16 FL OZ
Item Description Does your car have a blown head gasket?
  • White smoke coming out of your car's tailpipe?
  • Is there water in your car's oil?
  • Is your engine overheating?
  • Coolant squirting out of spark plugs?
  • Is there backpressure or bubbling in your car's radiator?
  • External leaks and leaking freeze plugs?

These are all classic symptoms of a broken head gasket. Ignoring these symptoms can lead to a costly repair bill. Fixing these problems is easy and guaranteed with Steel Seal.

Repair in 3 Easy Steps Pretreatment Head gasket failure is a symptom, not the cause of overheating. The original source of cooling system failure, if still present, must be repaired before attempting to repair your head gasket.
**STEEL SEAL IS NOT COMPATIBLE WITH All ANTIFREEZE FORMULATIONS** Therefore, for best results, coolant should be temporarily drained and replaced with fresh water. Once repaired, drain Steel Seal from the cooling system and replace with 50/50 antifreeze.
You may have to do additional steps if you have bubbling in the radiator or back pressure. Read carefully before starting the repair. Call us if you need assistance.
Water in oil
If water is present, you must change the oil and filter before proceeding. Change oil and leave one quart low. Add last quart after the repair is complete Repair Procedure
1. Make sure the engine is cold and remove the radiator cap. Pour Steel Seal directly into the radiator. Tighten the radiator cap back on. Ensure coolant is present before running the engine. If you have drained the coolant out, pour Steel Seal into the system and top off with coolant and move to step two.
2. Turn the heater and fan to maximum. Start the engine and run your vehicle up to temperature. Once your vehicle reaches operating temperature run for 30 minutes. Turn off vehicle and allow to cool completely. Top off with antifreeze/water as necessary, replace radiator cap tightly.
3. Leave the Steel Seal in your system and drive the vehicle as usual.
NB: If you are introducing Steel Seal via an expansion tank please make sure that there is sufficient room for Steel Seal to go directly into the cooling system and that it does not just sit in expansion tank/reservoir.
For best results:
  • If you have tried inferior products flush your cooling system with clean water after disconnecting bottom radiator hose. Do not use a flushing agant.
  • If you have flushed the system reconnect bottom radiator hose.
Steel Seal Guarantee

We guarantee that Steel Seal will permanently repair a blown head gasket, cracked head or block. If Steel Seal fails to repair a blown head gasket or fails at any point during the time you own your vehicle, we will send you additional product at no extra cost.

Steel Seal's highest priority is to repair your head gasket and keep it repaired.

100% money back

If you feel Steel Seal has failed to repair your head gasket please contact Technical support within 30 days of purchase for a full refund of the purchase price, less shipping and handling.

Unconditional lifetime warranty

Original owner — Non transferable

After thirty days Steel Seal will automatically initiate an unconditional life time Warranty.

If Steel Seal fails at any future date just contact technical support for a free re-treatment.

Just call our tech-support team at 855-771-1972


Mail to: Steel Seal, Unit 30, offeravon Industrial Estate, offerford-On-Avon, Warwickshire, United Kingdom, B50 4JN

Returns Policy

Customers may return Steel Seal to us within 30 days of purchase date for a full refund of the purchase price, less shipping and handling.

Product must be returned in re-saleable condition and shipped by a traceable method. Please include the name and address the product was ordered under to speed up the processing of your refund.

FAQ How does Steel Seal Work?

Steel Seal is poured into the radiator of a cold engine. Once the engine is started and reaches operating temperature, Steel Seal is distributed through the engine. The product is drawn into the damaged area and seals the crack with a thermo-chemical bonding process.

What kind of head gasket symptoms will Steel Seal fix?
  • White smoke out of the tailpipe
  • Water in the oil
  • External leaks and leaking freeze / Bubbling in the radiator
What kind of vehicles can Steel Seal be used on?

Any type of closed, water cooled engine can be fixed with Steel Seal, whether it's gasoline or diesel. We've fixed cars, trucks, motorcycles, boats and heavy equipment.

How long will Steel Seal last?

We guarantee it for as long as you own your vehicle. No other product on the market has a guarantee like ours.

Will Steel Seal clog the engine's cooling system?

Steel Seal is a clear formula that contains no fibrous materials or particles that could clog engine coolant passages.

What is Steel Seal made of?

Steel Seal is comprised of a proprietary chemical formula, that when introduced into your cooling system, will create a permanent seal as strong as steel.

Is Steel Seal compatible with antifreeze?

Yes, Steel Seal is compatible with regular antifreeze but is not compatible with Dex-Cool or other extended life antifreeze.


Steel Seal offers free USPS Priority shipping (2-3 day shipping) within the continental United States to any orders of 4, 6 or 8 cylinder bottles. We ship Monday - Friday excluding holidays. If your payment is received by 2:00pm EST we will do our best to ship your package the same day.

If after 2:00pm EST it will ship the next business day.

Free shipping does not apply to:

  • International orders
  • Orders to Canada
  • USPS Express shipping

If you have any Sales questions or need Tech Support, please contact us at 855-771-1972

Your response Is Important To Us

Steel Seal will fix the problems stated above, but your vehicle may have issues that are beyond Steel Seal's repair. If you find Steel Seal is not working or you need assistance with the repair, please call us and we will help diagnose your problems, free of charge. We offer a free re-dose of our product if your car needs additional sealer or we have a lifetime money back guarantee if it doesn't work. If you have any issues with our product, please contact us before leaving negative response so that we can help diagnose your vehicles situation.

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