Bar’s Leaks Radiator Stop Leak, 11 oz

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Amazon Price: $4.98 (as of November 12, 2025 2:15 am – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.
  • Brand: Bar’s Leaks
  • Manufacturer: Bar’s Products

Features

  • DISSOLVED PELLETIZED FORMULA: Bar’s Leaks Radiator Stop Leak seals internal, external and coolant-to-oil leaks. It is specially formulated to seal larger leaks better than other stop leak products.
  • STOPS CURRENT AND FUTURE LEAKS: Works safely and effectively on plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs.
  • INHIBITS RUST AND CORROSION: Water Pump Lube lubricates water pump seal and inhibits the formation of rust and scale.
  • WORKS WITH ALL TYPES AND COLORS OF ANTIFREEZE COOLANT AND / OR WATER: Compatible with both conventional silicate-based and extended life (OAT/HOAT) antifreeze, all types and colors. Can also be used in straight water.
  • Bar’s Leaks Radiator Stop Leak seals internal, external and coolant-to-oil leaks. It is specially formulated to seal larger leaks better than other stop leak products.

Manufacturer Info

  • PartNumber: 1199
  • Model: 1199
  • Warranty: See manufacturer

Product Info

  • Size: Pack of 1
  • NumberOfItems: 1

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