---
product_id: 49982191
title: "LOYWW250 Wondarweld 250ml, black"
brand: "holts"
price: "฿2671"
currency: THB
in_stock: true
category: "Holts"
url: https://www.desertcart.co.th/products/49982191-loyww250-wondarweld-250ml-black
store_origin: TH
region: Thailand
---

# High-temp resistance Permanent crack sealing Compatible with iron, steel & aluminum LOYWW250 Wondarweld 250ml, black

**Brand:** holts
**Price:** ฿2671
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it once, fix it forever — keep your engine running like new!

## Quick Answers

- **What is this?** LOYWW250 Wondarweld 250ml, black by holts
- **How much does it cost?** ฿2671 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/49982191-loyww250-wondarweld-250ml-black)

## Best For

- holts enthusiasts

## Why This Product

- Trusted holts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Engine Savior:** Permanently seals cracks to avoid costly rebuilds
- • **Trusted Legacy:** From Holts, a 65+ year industry leader in automotive care
- • **Heavy-Duty Durability:** Resists extreme heat, pressure, and vibrations
- • **Universal Compatibility:** Works seamlessly on iron, steel, and aluminum engines
- • **Quick & Professional Fix:** Stops leaks in water jackets and cylinder blocks fast

## Overview

Holts Wondarweld 250ml is a professional-grade engine repair liquid that permanently seals cracks and leaks in cylinder blocks, heads, and gaskets. Compatible with iron, steel, and aluminum engines, it withstands high temperatures, water pressure, and vibrations, preventing expensive engine rebuilds. Trusted for over 65 years, Holts delivers a reliable, heavy-duty solution for cooling system repairs.

## Description

Product Description Wondarweld is a professional quality cooling system repair product. It is a heavy duty repair which fixes cracks in cylinder heads, engine blocks and head gaskets permanently. Read the instructions on the back of pack carefully and do not pour into oil. Manufacturer's Description Wondarweld is designed to repair cracks in a car’s engine block. Suitable for steel, iron and aluminium engines, it prevents the need for an engine rebuild whilst resisting high temperatures, water pressure and vibrations.Wondarweld can solve several types of engine problems including external cracks, which occurs when the coolant fluid leaks (either because the engine has frozen or there is damage to the head gasket); internal cracks (gas mixing with water resulting in bubbles entering the expansion chamber, white smoke at the exhaust, hardening of flexible pipes (due to the contamination between the compression in cylinders and the coolant system) and leakages at the bottom of the cylinder gasket. Comes in a 250ml bottle.Founded in the United Kingdom more than 65 years ago, Holts has become an industry leader in the manufacture and global distribution of automotive aftermarket products.

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Holts Wondarweld - 250ml
- Permanently seals cracked cylinder blocks as well as internal and external leaks in the water jacket
- Prevents the need for engine rebuild
- Suitable for iron, steel and aluminium engines
- car parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ALTYS4O |
| Best Sellers Rank | 273,958 in Automotive ( See Top 100 in Automotive ) 930 in Fillers, Adhesives & Sealants |
| Brand | Holts |
| Customer Reviews | 3.7 3.7 out of 5 stars (4) |
| Date First Available | 10 Dec. 2012 |
| Item Weight | 259 g |
| Item model number | LOYWW250 |
| Manufacturer | HOLTS |
| Manufacturer part number | WW250 |
| Model | LOYWW250 |
| Product Dimensions | 56.69 x 32.31 x 27.61 cm; 258.55 g |

## Images

![LOYWW250 Wondarweld 250ml, black - Image 1](https://m.media-amazon.com/images/I/61Zp+-9uQAL.jpg)

## Frequently Bought Together

- Holts LOYWW250 Wondarweld 250ml, Black
- Liqui Moly 1803 Injection Cleaner 300ml
- Liqui Moly 8374 - Engine Oil Additive

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**Shop now:** [https://www.desertcart.co.th/products/49982191-loyww250-wondarweld-250ml-black](https://www.desertcart.co.th/products/49982191-loyww250-wondarweld-250ml-black)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-22*