Best Head Gasket Repair Sealant 2020 – Top 10 Reviewed!

SaleBestseller No. 1
Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
636 Total Customer Reviews
Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
  • Repairs blown head and intake gasket leaks
  • Seals cracked cylinder heads and blocks
  • Stops heater core and radiator leaks
  • Fixes leaking freeze and core plugs
Bestseller No. 2
K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair
85 Total Customer Reviews
K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair
  • Just Pour & Go – No Need for Expensive Head Gasket Repairs - The Safe and Easy Way to Fix a Coolant Leak
  • Fixes blown head gaskets, cracked heads and blocks
  • A permanent repair, guaranteed for the lifetime of the engine
  • Scientifically Tested - K-Seal is the only product to have been successfully tested by the equipment at Brighton University and classes as meeting the demands...
Bestseller No. 3
BlueDevil Pour-N-Go Head Gasket Sealer
283 Total Customer Reviews
BlueDevil Pour-N-Go Head Gasket Sealer
  • Do-It-Yourself Formula
  • Easy to Use Pour-n-go
  • Used for 4 cylinder and v-6 engines
  • Permanently Seals Blown, Cracked or Leaking Head Gaskets
Bestseller No. 4
BlueDevil Head Gasket Sealer (38386)
551 Total Customer Reviews
BlueDevil Head Gasket Sealer (38386)
  • Contains no solid or particulate matter that can harm a vehicles engine 
  • Alternative solution for costly and time consuming repairs 
  • Safe and easy to use
  • Permanent Repair
Bestseller No. 5
K&W 401224-6 FiberLock Head Gasket & Block Repair - 32 Fl Oz
242 Total Customer Reviews
K&W 401224-6 FiberLock Head Gasket & Block Repair - 32 Fl Oz
  • Easy Pour and Go Formula!
  • Permanently fixes head gaskets, engine blocks, cooling systems, and cylinder heads.
  • "Contains 3 unique technologies. Military-Strength Fibers create multi-layer repair over cracks with a web-like weave. Nanotechnology permanently fixes the...
  • Seals larger holes with less fluid loss than competitive products as proven by lab test (ASTM D6107)
Bestseller No. 6
Bar's Leaks 1100 Head Gasket Repair - 20 oz.
60 Total Customer Reviews
Bar's Leaks 1100 Head Gasket Repair - 20 oz.
  • Stops block leaks
  • Seals cracked cylinder heads and blocks
  • Repairs blown head gaskets
  • Dual Action 2 Part Formula — LIQUID CERAMIC: Liquid penetrates large and small leaks to form a seal actually harder than the original head gasket —...
SaleBestseller No. 7
Bar's Leaks 1111 Block Seal Permanent Head Gasket Fix 24 oz.
370 Total Customer Reviews
Bar's Leaks 1111 Block Seal Permanent Head Gasket Fix 24 oz.
  • Stops block leaks
  • Seals cracked cylinder heads and blocks
  • Repairs blown head gaskets
  • Contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and...
Bestseller No. 8
Steel Seal Blown Head Gasket Fix Repair Sealer - 8 Cylinder
73 Total Customer Reviews
Steel Seal Blown Head Gasket Fix Repair Sealer - 8 Cylinder
  • Permanently seals a crack in the head gasket
  • Do-It-Yourself Pour in Head Gasket Fix
  • Used by thousands of repair shops nationwide
  • Backed with a 100% Money-Back Guarantee
Bestseller No. 9
Steel Seal Blown Head Gasket Fix Repair Sealer - 6 Cylinder
73 Total Customer Reviews
Steel Seal Blown Head Gasket Fix Repair Sealer - 6 Cylinder
  • Permanently seals a crack in the head gasket
  • Do-It-Yourself Pour in Head Gasket Fix
  • Used by thousands of repair shops nationwide
  • Backed with a 100% Money-Back Guarantee
SaleBestseller No. 10
K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
1,332 Total Customer Reviews
K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
  • Permanent coolant leak repair - Just shake, pour and go
  • Mixes with all antifreeze
  • No draining or flushing
  • Fixes cracks and leaks in radiator, head gasket, freeze plugs, cylinder heads, heater core, water pump casing and engine blocks

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Wrapping Up

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