Bar’s Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak – 18 oz. (4 Pack)

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Amazon Price: N/A (as of May 31, 2026 7:44 pm – 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.

Currently unavailable

  • Brand: Bar’s Leaks
  • Manufacturer: Bar’s Products

Features

  • PERMANENTLY FIXES COOLING SYSTEM LEAKS: . One step formula permanently repairs coolant loss problems on cars, trucks, vans, SUV’s and RV’s.
  • ANTIFREEZE COMPATIBLE – NO DRAINING REQUIRED: Antifreeze compatible sodium silicate liquid glass penetrates large and small leaks in plastic, aluminum and cast iron heads, blocks, intake manifold & gaskets, freeze plugs, heater cores and radiators.
  • ONE STEP – POUR DIRECTLY INTO RADIATOR – EASY TO USE: Fiber additives lock together with liquid to increase strength and promote a permanent seal. It will not harm the coolingsystem when used properly, no draining is required.
  • USE WITH ALL TYPES OF TRADITIONAL OR EXTENDED LIFE COOLANT: 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.

Manufacturer Info

  • PartNumber: 1109-4PK
  • Model: 1109-4PK
  • Warranty: Please see manufacturer

Product Info

  • NumberOfItems: 4

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