--- product_id: 10430225 title: "Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz." price: "€ 28.55" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.hr/products/10430225-bars-leaks-plt11-pelletized-hd-radiator-stop-leak-11-oz store_origin: HR region: Croatia --- # Lubricates water pump seals Seals leaks fast Prevents rust & corrosion Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz. **Price:** € 28.55 **Availability:** ✅ In Stock ## Summary > 🔥 Stop leaks before they stop you! 🛠️ ## Quick Answers - **What is this?** Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz. - **How much does it cost?** € 28.55 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/10430225-bars-leaks-plt11-pelletized-hd-radiator-stop-leak-11-oz) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** 11 oz. pelletized formula fits easily into any maintenance routine for hassle-free protection. - • **Water Pump Wellness:** Lubricates water pump seals to reduce wear and prevent costly repairs. - • **Electrolysis Control:** Helps manage electrolysis, safeguarding your cooling system’s integrity. - • **Leak-Proof Confidence:** Instantly seals radiator leaks to keep your engine running smooth and stress-free. - • **Rust & Corrosion Defense:** Protects your cooling system from damaging rust and corrosion, extending engine life. ## Overview PLT11 Pelletized HD Radiator Stop Leak is an 11 oz. powerful additive designed to seal radiator leaks, inhibit rust and corrosion, lubricate water pump seals, and control electrolysis, ensuring your vehicle’s cooling system stays efficient and reliable. ## Description Radiator leaks can be overwhelming, especially when you don’t have the time or the money to take your car to the shop. Many first discover these seal coolant leaks when they walk out to their car and notice a puddle sitting beneath it. The initial reaction is to assume that the leak will create an expensive visit to the garage, not to mention the inconvenience of going without your car during the repair. Well, it’s time to ease your worries, because we have created a fast and easy-to-use product that seals internal, external and coolant-to-oil leaks. Our Bar’s Leaks Pelletized Radiator Heavy Duty Stop Leak is specially formulated to seal larger leaks better than other stop leak products. You’ll find plenty of powder formula radiator stop leak products on the market, but you won’t find a seal coolant leak solution that beats ours in effectiveness. Our Pelletized Radiator Heavy Duty Stop Leak is versatile, too, working safely and effectively on plastic, aluminum and metal radiators, heater cores, gaskets and freeze plugs. It also has a water pump lube that lubricates water pump seals and inhibits the formation of rust and scale. Simply put, it’s the fast, effective, easy-to-use powder formula radiator stop leak that’s just as simple and straightforward for a regular driver as for an experienced mechanic. Convenient solutions to seal coolant leaks shouldn’t be limited to just those with advanced automotive knowledge, which is why each product in our catalog is designed to meet the needs of anyone who gets behind the wheel of a vehicle. In under an hour, you can quickly and easily solve that once-dreaded leaky radiator. Give it a try and get your car back on the road in no time. Review: Saved me thousands!! - I own a 2003 Ford Ranger four-cylinder. My radiator developed a slow drip. But don’t let a slow drip, fool you! Cruising down the highway my engine started to overheat and I had to pull off onto the shoulder as this slow drip rapidly drained my radiator! Not wanting to spend what could be thousands. I spent a few bucks on this product with nothing but amazing results! I could not access my radiator, so I dissolve the product and poured it into the reservoir as instructed. It did take a couple applications but now I have utmost confidence that I won’t have to pull off the highway again and it has completely sealed the leak! Thank you, thank you thank you! Review: the strength - worked wonders lol ## Features - Seals leaks - Conditions cooling system - Inhibits rust and corrosion - Lubricates water pump seals - Helps control electrolysis ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Bar's Leaks | | Brand | Bar's Leaks | | Item Weight | 11 ounces | | Product Dimensions | 3 x 3 x 6 inches | | Item model number | PLT11 | | Is Discontinued By Manufacturer | Yes | | Manufacturer Part Number | PLT11 | | Voltage | 12 Volts | ## Images ![Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz. - Image 1](https://m.media-amazon.com/images/I/71S12Jj10xL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: My car does not have a cap on the top of the radiator as the coolant gets added through the overflow. How would I add this to my car?** A: Thank you for your question, and for considering Bar's Leaks to help with a cooling system leak. The product you are asking about - Bar's Leaks Heavy Duty Radiator Stop Leak (part number PLT11) - is designed to be installed directly into the radiator. If you don't have access to the radiator through a radiator cap, you can remove the top hose where it attaches to the radiator and install the product in through the hose. Be sure to shake the product well before installing. If installing this way is not an option for you, we would suggest you consider our Radiator Stop Leak Tablets (part number HDC) instead. These pellets can be crumbled up and installed in the overflow reservoir, as long as it is pressurized. Please note: Cooling systems that are dirty or partially clogged should be flushed before using any cooling system stop leak products. If you have any other questions or would like additional information, 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. **Q: Would this work in a polaris 4-wheeler?** A: This may work on any vehicle that the cooling system is not pressurized. Meaning that if your Polaris's cooling system is one of those pressurized cooling system this might not work. Might not, meaning may work as well. Good luck **Q: mi radiador no tiene tapa,puedo echar el sellador en el tanque de reserva** A: Si! **Q: What are the beads inside for? Can they be poured into the radiator?** A: The beads break down in the system and contain most of whats in the product to seal . ..... So yes, please pour the entire container into the vehicle. Great question... Thank you Eric ## Customer Reviews ### ⭐⭐⭐⭐⭐ Saved me thousands!! *by J***E on February 28, 2025* I own a 2003 Ford Ranger four-cylinder. My radiator developed a slow drip. But don’t let a slow drip, fool you! Cruising down the highway my engine started to overheat and I had to pull off onto the shoulder as this slow drip rapidly drained my radiator! Not wanting to spend what could be thousands. I spent a few bucks on this product with nothing but amazing results! I could not access my radiator, so I dissolve the product and poured it into the reservoir as instructed. It did take a couple applications but now I have utmost confidence that I won’t have to pull off the highway again and it has completely sealed the leak! Thank you, thank you thank you! ### ⭐⭐⭐⭐⭐ the strength *by A***R on November 26, 2025* worked wonders lol ### ⭐⭐⭐⭐ Saved me money. *by D***. on April 16, 2025* Decent product. I did have to use 2 bottles to get lasting results. ## Frequently Bought Together - Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz. - Valvoline Multi-Vehicle 50/50 Ready-to-Use Antifreeze/Coolant 1 GA - Bar's Leaks Cooling System Radiator Stop Leak 16.9 oz. --- ## 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.hr/products/10430225-bars-leaks-plt11-pelletized-hd-radiator-stop-leak-11-oz](https://www.desertcart.hr/products/10430225-bars-leaks-plt11-pelletized-hd-radiator-stop-leak-11-oz) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-23*