Holts Wondarweld is a professional cooling system repair product that’s designed to fix small cracks and holes in the cylinder head, engine block and head gasket. Thanks to its heavy-duty formula, the product provides a permanent repair without causing damage or clogging the system, so you can fix small problems without the need for a costly repair.
How Does Wondarweld Work?
Wondarweld is a professional, heavy-duty repair solution that’s suitable for all engine types. Added direct to the cylinder head, it permanently seals small holes and cracks in the engine block, head gaskets and water pump gaskets, restoring the integrity of the engine and cooling system.
Once added to the engine, Wondarweld circulates through the cooling system, seeking out small holes, cracks, and leaks to form a permanent repair. Lab-developed to ensure maximum performance and longevity, the product is safe for use on all common engine materials, including steel, aluminium, and iron.
A 250 ml bottle of Wondarweld is sufficient for cooling systems up to 8-litre.
How Do I Use Wondarweld?
Before using Wondarweld, drain the cooling system and flush with Cooling System Flush to remove any residue and contaminants left behind by the old coolant. After draining, reattach the bottom hose.
To use Wondarweld, you’ll need to remove the top hose from the cylinder head outlet before removing the thermostat. Do this, then use a funnel to apply the product directly into the cylinder head outlet, taking care not to pour into oil as this can cause serious engine damage.
After applying the product, replace the thermostat and top hose. Refill the system with clean water and run the engine for 15 minutes to repair the leak.
When the repair is complete and no fluid is leaking, drain the system again, flush with clean water, and then top up with a high-quality coolant/antifreeze product (add link here for Prestone coolant).
Do I Have to Remove the Engine Thermostat to Use Wondarweld?
Yes. Since Wondarweld is designed to be applied directly to the cylinder head outlet, you’ll need to remove the top hose and thermostat to access it. After pouring the product into the system, you can replace the thermostat and hose before circulating the product through the system.
Does Wondarweld Offer a Permanent Repair?
Holts Wondarweld is designed to provide a permanent repair for small holes and cracks in engine blocks, cylinder head gaskets and water pump gaskets. Tested to the highest standards, it is used by professionals to fix cooling system leaks without the need for other more time and labour-intensive means of repair.
"Delivery Service | Description | Please Note | Price |
---|---|---|---|
Standard Item Delivery over €50 | 3-4 Working Days (07:00 - 19:30hrs) |
Weekdays Only (only applies to orders placed before 4pm) |
Free* |
Standard Item Delivery under €50 | 3-4 Working Days (07:00 - 19:30hrs) |
Weekdays Only (only applies to orders placed before 4pm) |
€4.99 |
Remote Area Delivery | 3-4 Working Days (07:00 - 19:30hrs) |
Weekdays Only (only applies to orders placed before 4pm) |
€11.99 |
Oversized Items | 3-4 Working Days (07:00 - 19:30hrs) |
Weekdays Only (only applies to orders placed before 3pm) |
€11.99 |
Remote Area Delivery - Oversized Items | 3-4 Working Days (07:00 - 19:30hrs) |
Weekdays Only (only applies to orders placed before 4pm) |
€18.99 |
PLEASE NOTE: Orders placed after 4pm, will be processed the following day, adding 1 working day to the delivery service. For orders placed on a non-working day (Saturday or Sunday) please add 1 working day to your delivery date.
If your item is Over-Weight (Over 20kgs) or you are located in a remote area you may incur an additional charge. If this is the case the cost will be automatically calculated by our system at the checkout phase.
Due to the volume of deliveries, please allow a full 7 working days before contacting our customer service centre. All delivery times are approximate and can be delayed due to circumstances outside of our control.
No deliveries will be made on Sundays or Bank/ Public Holidays.
Delivery timescales will vary for items which are not marked as in-stock.
*Free Standard Delivery for order over €50 excludes Oversize and Remote area times.
Our Click & Collect service is FREE.
Click & Collect is easy way to check the stock, latest price and reserve products at your local Euro Car Parts branch. Click & Collect is available for all products and if in stock at your selected branch, items will be available for immediate collection and held until the end of the next working day. To Reserve your products, simply choose Click & Collect as checkout method and enter your branch. Our system will than check the latest stock at your nearest branches and if items are in stock you can reserve them immediately. Alternatively, if the items are not in stock, our system will offer you a later collection date, if available. Once you submit the form, you will receive e-mail containing your proof of reservation and reference number. Do not forget to bring your confirmation email with you when you visit our branch to collect your order.
At Euro Car Parts we hope that you are happy with your purchase, however we know that sometimes you will need to return or cancel an item. You can return your purchase to any of our Euro Car Parts Stores.
Before returning your item(s) please contact Euro Car Part Ltd for a Returns Authorisation Number.
For any returns queries, call us on 1800 818 440. Find out more about returns.
You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 60 days of purchase. Exceptions apply to certain products - find out more about our refund policy.
For more information call Euro Car Parts Customer Services Department on 1800 818 440 or Email the customer service department at custservice.ie@eurocarparts.com