8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
Reserve Online Participant
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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Cooling System Stop Leak Blue Devil 16 oz
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Cooling System Stop Leak Blue Devil 16 oz

Part #: NCB 00205
Line: NAPA Consumer Brands

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Features & Benefits

Warranty: Standard : No Warranty, Expressed or Implied


Blue Devil radiator and block sealer is an easy to use formula that will repair and seal leaks in radiators and or engine blocks. It does not contain solid or fibrous materials and will not clog or harm cooling systems.

  • It will bond to plastic, cast iron, aluminum, alloy or metal. Compatible in gasoline and diesel engines. It is guaranteed permanent repair. Safe and easy to store.
  • Safe and easy to store
  • Made in the USA
  • Compatible in gasoline and diesel engines
  • Guaranteed permanent repair


Brand NAPA
Container Size 16 fl oz (US)
Volatile Organic Compound (VOC) Rating 0 VOC
Acts as Stop Leak Yes
Contains VOCs No
Manufacturer Universal Products / BlueDevil
VMRS Code 053999003
SDS Required Yes

Safety Information

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