8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
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Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
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Bar's Leaks Radiator Stop Leak Tablets

Bar's Leaks Radiator Stop Leak Tablets

Part #: NCB HDC
Line: NAPA Consumer Brands

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Features & Benefits

Warranty: Standard : No Warranty, Expressed or Implied


Tablets inhibit the formation or rust and scale, neutralize pH imbalance, controls electrolysis, lubricates and seals internal, external and coolant-to-oil leaks. These are the same tablets as used by many OEM auto and truck manufacturers. Designed to enhance the use of antifreeze or can also be used in water. When used in water alone, it is also recommended to use a cooling system anti-rust and water pump lube. Compatible with ALL brands of antifreeze including conventional green or blue (silicate-based) and extended life red/orange or yellow (OAT/HOAT) coolant. Stops most leaks in only a few minutes.

  • Seals leaks
  • Conditions cooling system
  • Inhibits rust and corrosion
  • Lubricates water pump seals


Brand Bar's Leaks
Container Size 60 g
Concentrate;Ready To Use Ready to Use
Contents (6) Stop Leak Tablets
Acts as Stop Leak Yes
Manufacturer Bar's Products
Manufacturer Part Number HDC
VMRS Code 053999003
Stop Leak Application Cooling System Sealer & Conditioner
SDS Required Yes
Dilution Ratio 2 tablets for every 1 gallon of cooling system capacity
Weight 2.1 oz

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