



🛡️ Seal leaks, stop overheating, and drive worry-free—because your engine deserves the best!
Bar's Leaks Liquid Aluminum Radiator and Heater Core Stop Leak is a scientifically formulated, low viscosity additive designed to permanently seal coolant leaks in radiators, heater cores, gaskets, and freeze plugs. Featuring Xtreme Cool™ technology, it reduces water temperature to prevent overheating and conditions the cooling system. Compatible with all types and colors of traditional and extended life coolants, it requires no draining and works instantly to protect your vehicle’s engine.




| Manufacturer | Bar's Leaks |
| Brand | Bar's Leaks |
| Model | 1186-6PK |
| Product Dimensions | 6.6 x 6.6 x 18.8 cm; 544.31 g |
| Item model number | 1186-6PK |
| Manufacturer Part Number | 1186-6PK |
| Special Features | permanently seals coolant leaks, seals heater core leaks, conditions the cooling system, compatible with various types of coolant and antifreeze |
| Item Weight | 544 g |
| Viscosity | Low viscosity liquid |
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