Cat code: 777615

Holts Wondarweld 500ml

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Holts Wondarweld 500ml

Holts Wondarweld

The Holts Wondarweld is a heavy duty engine block and cylinder repair which can be used at home to repair leaks quickly and cost-effectively. It's a permanent repair which is anti-corrosive to protect against future leaks. Always read the instructions before use, and never pour into oil.

Click here to see instructions

Holts Wondarweld Extra Info

  • Permanently seals cracked cylinder blocks, internal & external leaks in water jacket
  • Suitable for steel, iron and aluminium engines
  • Prevents the need for engine rebuild
  • DO NOT POUR IN ENGINE OIL - always read the instructions carefully before us
  • Engine block and cylinder repair
  • Suitable for all cars
  • 500ml
*Please note the packaging may vary in store or via delivery

Additional Information

This product is for experienced amateurs and professional mechanics only.

Never pour Wondarweld into oil as this can cause serious engine damage.

Wondarweld is not compatible with antifreeze and coolant fluids.

Users must be strongly advised to read through all precautions, usage and dosage instructions carefully prior to use.

How can I get it?

Click & Collect

Delivery available

Choose your delivery day from £4.99

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

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Holts Wondarweld 500ml

£12.99 Fix leaks in your engine block with Wondarweld - never pour into oil.