---
product_id: 8435808
title: "HDC Radiator Stop Leak Tablet - 60 Grams, Brown"
brand: "bar's leaks"
price: "€ 20.53"
currency: EUR
in_stock: true
reviews_count: 13
category: "Bar's Leaks"
url: https://www.desertcart.fr/products/8435808-hdc-radiator-stop-leak-tablet-60-grams-brown
store_origin: FR
region: France
---

# Lubricates water pump seals Seals leaks fast Inhibits rust & corrosion HDC Radiator Stop Leak Tablet - 60 Grams, Brown

**Brand:** bar's leaks
**Price:** € 20.53
**Availability:** ✅ In Stock

## Summary

> 🚗 Fix leaks like a pro—without the shop hassle!

## Quick Answers

- **What is this?** HDC Radiator Stop Leak Tablet - 60 Grams, Brown by bar's leaks
- **How much does it cost?** € 20.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/8435808-hdc-radiator-stop-leak-tablet-60-grams-brown)

## 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

- • **OEM-Trusted Formula:** Used by automakers for 30+ years—proven reliability
- • **Electrolysis Control:** Neutralizes harmful electrical currents to prevent damage
- • **Leak-Proof Confidence:** Stops radiator leaks from within—no mechanic needed
- • **Smooth Seal Lubrication:** Keeps water pump seals running friction-free
- • **Rust & Corrosion Defense:** Protects your cooling system for longer engine life

## Overview

Bar's Leaks HDC Radiator Stop Leak Tablet is a 60-gram chemical-based sealant designed to repair radiator leaks quickly and effectively. It seals leaks, inhibits rust and corrosion, lubricates water pump seals, and controls electrolysis, extending the life of your vehicle’s cooling system. Trusted by OEM automakers for over 30 years, this easy-to-use tablet offers a cost-effective alternative to expensive repairs.

## Description

We all love using our tablets these days — reading, gaming, surfing the web, you name it! Unfortunately, that kind of tablet won’t be able to fix your leaky radiator. Like so many of the parts on your vehicle, your radiator needs regular maintenance to remain in tip-top condition. When you need radiator leak repair, you may be picturing a time-consuming and expensive trip to the mechanic. But, with Bar’s Leaks, that doesn’t have to be your reality when searching to repair a radiator leak. Our product engineers created these Bar’s Leaks Radiator Stop Leak Tablets to repair radiator leaks from within so you can get back on the road in no time. These tablets might not be able to surf the web, but they are definitely more powerful than you think. But what our radiator leak repair tablets offer in effectiveness, they don’t sacrifice in usability or affordability. In fact, you need no special automotive expertise to apply our tablets to repair radiator leaks. Our Radiator Stop Leak Tablets inhibit the formation of rust and scale, neutralize pH imbalance, control electrolysis, lubricate and seal internal, external and coolant-to-oil leaks. Imagine getting that range of effectiveness in a product you can buy off the shelf rather than through service only a mechanic can provide. In fact, this is the same product that’s been used right on the assembly line by OEM automakers around the world for 30+ years. This solution is the result of careful research and testing on the part of our team of top-flight chemical engineers. They work each day to improve existing products like our radiator leak repair tablets, as well as to develop new products to keep up with the latest in automotive innovations and technologies. Your leak’s days are numbered. Pick up a pack at your nearest auto parts store and make sure you watch our how-to video for an easy step-by-step installation process.

Review: Legit Product - All anyone needs to know is IT WORKS. As long as the leak isn't a gaping hole. And it did not clog my heater core.
Review: Worked on my marine CAT 3208 - I had to change head on my boat’s diesel CAT3208. Did not have any problems with the gasket, but head needed to be replaced. However, after the change I noticed small leak around the head gasket. Initially I purchased Bar’s Head Fix, but decided to call the company to get some tips on the installation. The company’s rep, after listening to the nature of my problem, stirred me towards Bar’s tablets. I followed the instructions on the amount, pre diluted tablets, and so far no leak. Just took a 50 mi trip down the coast everything looks good. I was little anxious initially, my engine is 40 years old and I did not properly flushed it, just changed coolant during head replacement procedure. I don’t know how long it is going to last, so far definitely worth it.

## Features

- Seals leaks
- Conditions cooling system
- Inhibits rust and corrosion
- Lubricates water pump seals
- Helps control electrolysis

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000KKND3Q |
| Best Sellers Rank | #386,558 in Automotive ( See Top 100 in Automotive ) #20 in Radiator Sealers |
| Brand | Bar's Leaks |
| Color | Brown |
| Customer Reviews | 4.3 4.3 out of 5 stars (939) |
| Date First Available | January 16, 2007 |
| Global Trade Identification Number | 00046087000069 |
| Is Discontinued By Manufacturer | No |
| Item Form | Tablets |
| Item Weight | 1.6 ounces |
| Item dimensions L x W x H | 7.5 x 5 x 0.8 inches |
| Item model number | HDC |
| Manufacturer | Bar's Leaks |
| Manufacturer Part Number | HDC |
| Material | Chemical-based sealant |
| Number of Items | 1 |
| Product Dimensions | 7.5 x 5 x 0.8 inches |
| Surface Recommendation | Aluminum/Metal |
| UPC | 046087000069 |
| Unit Count | 60 Grams |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Bar's Leaks
- **Item Weight:** 1.6 ounces
- **Item dimensions L x W x H:** 7.5 x 5 x 0.8 inches
- **Material:** Chemical-based sealant
- **Water Resistance Level:** Not Water Resistant

## Images

![HDC Radiator Stop Leak Tablet - 60 Grams, Brown - Image 1](https://m.media-amazon.com/images/I/71bMUTltgqL.jpg)

## Questions & Answers

**Q: Will this also stop small leaks in a heater core?**
A: Heater core leaks can be tough...... but yes... It should

**Q: Will tablets clog radiator or any systems in SUVs?**
A: I don't believe that this particular product will clog the radiator, hoses or heater core in any vehicle.  I purchased this particular product because for my vehicle, a GM V-8 car from 2003, these tablets are added to the coolant both by the manufacturer when the car is first assembled and by the dealer when the coolant is being changed.  These tablets are listed as a requirement to prevent trouble going forward.  With 150,000 miles on the vehicle at this point with these tablets being in the coolant from day one, I've had no cooling system issues.  These tablets are made of very finely ground up walnut shells and are not made with synthetic polymers or sealants.

**Q: Will this product work and be compatable with the oat purple antifreeze in a 2014 jeep grand cherokee?**
A: Does not work, don’t waste your money

**Q: i have my dads cadilliac ,,with a pin hole in readiator...seems the radiator cap is on the reservoir..can i put these in reservoir??? thanks!!**
A: Thank you for your question, and for considering Bar's Leaks Radiator Stop Leak Tablets (part number HDC) to help with a pinhole leak in the Cadillac radiator. As long as the coolant reservoir is pressurized, you may add the tablets there. For quicker results, you can also crumble the tablets up a little bit before installing them. The proper dosage is 2 tablets per gallon of coolant, and we do recommend installing them into a clean cooling system, following the instructions.

If you have any other questions, or we may be of additional assistance, please feel free to call our Tech Support Team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm, Eastern time.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Legit Product
*by D***R on May 23, 2025*

All anyone needs to know is IT WORKS. As long as the leak isn't a gaping hole. And it did not clog my heater core.

### ⭐⭐⭐⭐⭐ Worked on my marine CAT 3208
*by K***Y on June 9, 2023*

I had to change head on my boat’s diesel CAT3208. Did not have any problems with the gasket, but head needed to be replaced. However, after the change I noticed small leak around the head gasket. Initially I purchased Bar’s Head Fix, but decided to call the company to get some tips on the installation. The company’s rep, after listening to the nature of my problem, stirred me towards Bar’s tablets. I followed the instructions on the amount, pre diluted tablets, and so far no leak. Just took a 50 mi trip down the coast everything looks good. I was little anxious initially, my engine is 40 years old and I did not properly flushed it, just changed coolant during head replacement procedure. I don’t know how long it is going to last, so far definitely worth it.

### ⭐⭐⭐⭐ I was highly skeptical, but this product worked as advertised.
*by D***H on June 17, 2013*

My radiator developed a slow but significant leak after I clumsily bumped my Nissan Pathfinder SUV into a reinforced cinder block wall at low speed in a parking garage. I have ordered a replacement, but needed to patch my old radiator well enough to get me through to the next weekend when I will have time to do the swap. The label says the tablets will fit in "most" radiators intact - That may be true for full-size American cars and pickups, but not for any Japanese vehicle I've owned. Following the instructions, I dissolved all six tablets in hot water, poured the resulting slurry into the radiator. I topped off with deionized water and started driving around - First to an auto parts store to get a new radiator cap, coolant, and sealant to prepare for next weekend's projects. After three trips of a few miles each, the leak had attenuated noticeably. I drove out for dinner, and when I arrived at the restaurant there was no noticeable fluid leaking. I checked the radiator this morning, and found it completely full. There was no sign of any leak then or after my Monday morning commute. I've used other leak-stop products before, and I have to say this one appears to be the most effective. I wouldn't trust anything other than a fully sound radiator as a permanent fix, but I am cautiously confident that the Bar's Leaks treatment will get me to Saturday morning without further intervention.

## Frequently Bought Together

- Bar's Leaks HDC Radiator Stop Leak Tablet - 60 Grams, Brown
- Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz.
- K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fr/products/8435808-hdc-radiator-stop-leak-tablet-60-grams-brown](https://www.desertcart.fr/products/8435808-hdc-radiator-stop-leak-tablet-60-grams-brown)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-10*