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BlueDevil  |  SKU: 38386

Blue Devil Head Gasket Sealer 946ml

$16599
Tax included Shipping calculated at checkout.

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365-Day Warranty
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Delivery and Shipping

  • Shipping is a flat rate of $11.95, *however occasionally Heavy or Bulky items, Dangerous Goods or deliveries to regional/remote areas may incur an extra freight charge. Our Customer Service team will be in contact if this does occur.
  • Orders to major capital cities except WA generally arrive within 3 to 5 business days, WA delivery times are normally 5 to 10 business days.
  • For further information please refer our Shipping & Delivery page.

365-Day Warranty

  • AutoMegaStore offers a 365-day warranty - 365 days from date of purchase. We will either credit, replace, or refund your item. The warranty covers all manufacturing faults and defects. 
  • For further information please refer our Warranty page.

Item Returns

  • At AutoMegaStore, we want you to be 100% happy with your purchase. If, for any reason, you are not satisfied, you may return the product to us within 30 days of the date of purchase.
  • Email us with your name, order number, and images of the intended returned product, and our Customer
    Care team will arrange authorisation for the return.
  • For further information please refer our Refunds & Returns page.

Blue Devil Head Gasket Sealer will repair and seal leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs.

  • Contains no solid or particulate matter that can harm a vehicles engine 
  • Good for Head Gaskets, Warped or Cracked Heads, Heater Cores, and Freeze Plugs 
  • Head gasket sealant is an alternative solution for costly and time consuming repairs

 Made in USA.

Blue Devil head gasket sealant contains no solid or particulate matter and will not clog or harm your engine. It bonds to metal, aluminium, cast, alloy, or plastic, and its safe and easy to use.

Blue Devil Head Gasket Sealer is compatible in gasoline and diesel engines. Many people are unsure how to fix a blown gasket but know that Blue Devil's Head Gasket Sealer is the best formula available as it stops leaks permanently.

 Directions:

  1. Cooling system must be clean and free flowing before applying Blue Devil Head Gasket Sealer.
  2. REMOVE THERMOSTAT and flush cooling system using Blue Devil Radiator Flush (or comparable flushing agent) and then flush with water.
  3. Fill cooling system with WATER. Leave enough room for the recommended amount of Blue Devil. (See Table)
  4. IMPORTANT: ENGINE MUST BE COLD BEFORE YOU BEGIN. Remove the radiator cap and start the engine while cold, then turn heater to Max.
  5. IMPORTANT: POUR SLOWLY! With the engine idling, SLOWLY POUR Blue Devil into the radiator (take 1 minute pour time for entire bottle - 30 seconds for 1/2 bottle). After pouring Blue Devil slowly, let vehicle idle with CAP ON for 50 minutes. You do not need to flush the system a second time after process is complete.
  6. Let engine cool before installing new thermostat. Drain enough fluid to refill with compatible antifreeze.

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Flat Rate Shipping*
365-Day Warranty
Easy Returns