---
product_id: 225628777
title: "Bar's Products Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz"
brand: "bar's leaks"
price: "6090 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/225628777-bars-products-leaks-1186-liquid-aluminum-stop-leak-16-9
store_origin: IS
region: Iceland
---

# Compatible with all coolant types Lowers water temperature Seals leaks instantly Bar's Products Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz

**Brand:** bar's leaks
**Price:** 6090 kr
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal leaks like a pro, keep your engine chill! 🌬️

## Quick Answers

- **What is this?** Bar's Products Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz by bar's leaks
- **How much does it cost?** 6090 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/225628777-bars-products-leaks-1186-liquid-aluminum-stop-leak-16-9)

## Best For

- bar's leaks enthusiasts

## Why This Product

- Trusted bar's leaks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **System Conditioning:** Not just a sealant, it conditions and protects your cooling system
- • **Instant Leak Sealing:** Stops radiator, heater core, gasket & freeze plug leaks fast
- • **No Draining Required:** Easy, mess-free application—just add and drive
- • **Advanced Xtreme Cool™ Formula:** Reduces overheating and lowers engine water temperature
- • **Universal Coolant Compatibility:** Works with all silicate & non-silicate antifreeze blends

## Overview

Bar's Leaks Liquid Aluminum Stop Leak is a scientifically formulated, 16.9 oz liquid additive that permanently seals radiator, heater core, gasket, and freeze plug leaks. Featuring the patented Xtreme Cool™ technology, it lowers engine water temperature to prevent overheating. Compatible with all types of antifreeze and requires no draining, making it a hassle-free solution to maintain and protect your vehicle’s cooling system.

## Description

Bar’s Leaks® Liquid Aluminum Radiator & Heater Core Stop Leak is the best radiator stop leak money can buy. Scientifically formulated to permanently seal coolant leaks that are the cause of most overheating problems. Liquid Aluminum is part of the next generation stop leak line which not only seal leaks, but also conditions the system. Contains Xtreme Cool™ which stops overheating and reduces water temperature. It is guaranteed to safely and easily seal leaks in plastic, aluminum and metal (copper / steel) radiators, heater cores, gaskets and freeze plugs. It will not harm the cooling system, no draining is required. Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water. For most vehicles leaks seal instantly.

## Features

- Bar's Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Brand | Bar's Leaks |
| Package Information | Tin |
| Liquid Volume | 16.9 Fluid Ounces |
| Item Weight | 0.8 Pounds |
| Item Form | Liquid |
| Global Trade Identification Number | 00046087011867 |
| Manufacturer | Bar's Leaks |
| Net Quantity | 1.00 Count |
| UPC | 046087011867 |
| Number of Items | 1 |
| Model | Radiator Stop Leak, 16.9 Oz. |
| Product Dimensions | 4.57 x 7.62 x 16.76 cm; 362.87 g |
| Item model number | 1186 |
| Exterior | Painted |
| Manufacturer Part Number | 1186 |
| Colour | Gray |
| Assembly Required | No |
| Voltage | 12 Volts |
| Country of Origin | USA |
| Item Weight | 363 g |

## Product Details

- **Material:** Plastic
- **Brand:** Bar's Leaks
- **Package Information:** Tin
- **Liquid Volume:** 16.9 Fluid Ounces
- **Item Weight:** 0.8 Pounds

## Images

![Bar's Products Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz - Image 1](https://m.media-amazon.com/images/I/710LVf+KX5S.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: My radiator leaking from the seam.  Slightly overheating.  Will this seal at the seam?**
A: It should,depending on how big the leak/crack is,the one on my semi truck was dripping big,half a gallon a day,I was worried bc that s a $2,000.00 repair,I bought it not expecting any results,since I had previously used Bars leak (the small silver bottle) and didn t work,so this was a prayer and a last hope, 5,000 mls later and not a leak,not extra coolant added,it is liquid aluminum,so it bonds to wherever the leak is and forms a sealing coat...I think of it as welding from the inside...I hope it works for you as it did for me,it really was an answer to prayer...I know I m a bit dramatic but it was.PS,try to follow recommended amount or as close as recommended,not much less and not much more,I used 2 bottles on a 11 gal radiator.God bless.

**Q: can it be used in a Tahoe plastic tank**
A: i used it in my volvo which has a plastic expansion tank and no problems. it won't fix big leaks but if you're losing just a little coolant over time and can't find the leak this is the stuff to use!

**Q: My volkswagen golf gti 2018 doesn’t have a radiator cap can i still put it in a coolant reservoir to seal my radiator leak?**
A: If direct access to radiator is not available, install in overflow tank. Please ensure overflow is pressurized before adding. 

DIRECTIONS

Allow engine to cool. Make sure engine is cool enough so radiator cap can be safely removed.
Shake well. Pour Bar’s Leaks Liquid Aluminum directly into radiator. One bottle treats systems up to 4 gallons. Use 1/2 bottle in 3 and 4 cylinder engines. TIP: If direct access to radiator is not available, install in overflow tank.
Fill radiator and overflow tank to proper level and reinstall radiator cap.
Drive/idle engine for 15 to 20 minutes. If leak continues, second application may be required or mechanical attention is needed. For severe leaks, like a blown head gasket, it is recommended to use Bar’s Leaks Head Gasket Fix or Blown Head Gasket Repair.
Leave Bar’s Leaks Liquid Aluminum in cooling system for continued protection.

If you have any other technical questions, feel free to contact our Technical Service Professionals at 800-345-6572 or if you would prefer you can use the contact us page on our website.

**Q: will this work on the head also?**
A: Try it...it's inexpensive.  Whether it works depends on the specifics of your problem.  I tried it on a 4 cylinder BMW with a new head and profile gasket and a slow leak.  It worked great.

## Frequently Bought Together

- Bar's Leaks Cooling System Radiator Stop Leak 16.9 oz.
- PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems
- Bar's Leaks 1109 Liquid Copper Block Seal, Intake and Radiator Stop Leak, 18 oz. | One Step, Safe for All Cooling Systems

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-03*