---
product_id: 39895805
title: "Pro-Line Radiator Stop Leak K 250ml"
brand: "liqui moly"
price: "HK$593"
currency: HKD
in_stock: true
reviews_count: 5
category: "Liqui Moly"
url: https://www.desertcart.hk/products/39895805-pro-line-radiator-stop-leak-k-250ml
store_origin: HK
region: Hong Kong
---

# Seals leaks instantly Compatible with all coolants Protects combustion chamber Pro-Line Radiator Stop Leak K 250ml

**Brand:** liqui moly
**Price:** HK$593
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the deal before your ride feels the heat!

## Quick Answers

- **What is this?** Pro-Line Radiator Stop Leak K 250ml by liqui moly
- **How much does it cost?** HK$593 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/39895805-pro-line-radiator-stop-leak-k-250ml)

## Best For

- liqui moly enthusiasts

## Why This Product

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

## Key Features

- • **Efficient Dosage:** 250 ml treats up to 40 liters of cooling water—maximum value, minimal waste.
- • **Trusted & Proven:** Highly rated with 4.5 stars from thousands of users who fixed leaks fast and easy.
- • **Instant Leak Sealing:** Stops small radiator leaks in seconds, saving you costly repairs.
- • **Long-Lasting Protection:** Prevents damage by securing the combustion chamber from coolant intrusion.
- • **Universal Compatibility:** Works flawlessly with aluminum, plastic radiators, and all standard coolant additives.

## Overview

Liqui Moly Pro-Line Radiator Stop Leak K is a powerful 250 ml additive designed to instantly seal small leaks and cracks in all radiator types, including aluminum and plastic. Compatible with all standard coolants and antifreeze, it protects your engine’s combustion chamber from damage caused by coolant leaks, offering a quick, reliable, and cost-effective solution trusted by thousands of users.

## Description

For all cooling water and heating systems with and without water filters. Also suitable for aluminum and plastic radiators. 250 ml sufficient for up to 40 l cooling water. Compatible with all standard treating agents for coolants and antifreeze. Can also be used as a preventative measure.

Review: Piccola falla nel radiatore del mia Yamaha R1, riparato senza problemi, prodotto valido
Review: Great product worked really quick I had a hair line crack in a plastic water pump housing sealed it up in seconds easy to use and wasn’t that expensive either

## Features

- Small leaks caused by stone impacts, porous soldering points and hairline cracks in the cooling simple are easy to localize (one notices that the cooling water level is sinking). Radiator Stop Leak K completely seals such leaks immediately with ease. Secures the combustion chamber from damages caused by coolant admission.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004FPUUSS |
| Best Sellers Rank | #479,950 in Automotive ( See Top 100 in Automotive ) #21 in Radiator Sealers #5,858 in Oils & Fluids |
| Brand | Liqui Moly |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,759) |
| Date First Available | August 28, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9.7 ounces |
| Item model number | 5178 |
| Manufacturer | Liqui Moly GmbH |
| Manufacturer Part Number | 5178 |
| Product Dimensions | 26.02 x 9.29 x 5.28 inches |

## Images

![Pro-Line Radiator Stop Leak K 250ml - Image 1](https://m.media-amazon.com/images/I/71hjKV4yzlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***O on June 15, 2025*

Piccola falla nel radiatore del mia Yamaha R1, riparato senza problemi, prodotto valido

### ⭐⭐⭐⭐⭐ Review
*by J***N on May 18, 2025*

Great product worked really quick I had a hair line crack in a plastic water pump housing sealed it up in seconds easy to use and wasn’t that expensive either

### ⭐⭐⭐⭐⭐ Review
*by A***D on July 9, 2024*

i have coolant leak more than month , but now leak get fixed , i recommend to anyone have coolant leak to use this product it very good and reliable

## Frequently Bought Together

- LIQUI MOLY Pro-Line Radiator Stop Leak K | 250 ml | Cooler additive | SKU: 5178
- JOVS Jovs Antifreeze Coolant 5 Litre Long Life Red Ready Mixed Engine Coolant Ready to Use
- Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml

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**Shop now:** [https://www.desertcart.hk/products/39895805-pro-line-radiator-stop-leak-k-250ml](https://www.desertcart.hk/products/39895805-pro-line-radiator-stop-leak-k-250ml)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-26*