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A permanent repair, guaranteed for the lifetime of the engine. Fixes blown head gaskets, cracked heads and blocks. If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn't allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.


1. KALIMEX LTD
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K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair, Blue
#adKALIMEX LTD #ad - Fixes cracks and leaks in radiator, head Gasket, Freeze Plugs, heater core, Cylinder Heads, Water Pump Casing And Engine Blocks. Mixes with All Antifreeze. Permanent coolant leak Repair - Just Shake, Pour And Go. No draining Or Flushing.More information #ad
Brand | KALIMEX LTD #ad |
Manufacturer | K-Seal #ad |
Height | 6 Inches |
Length | 7.87 Inches |
Weight | 0.6 Pounds |
Width | 2 Inches |
Part Number | ST5501 |
Model | ST5501 |
Warranty | When K-Seal makes a repair we guarantee it will be permanent |
More information #ad
2. K-Seal
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K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair
#adK-Seal #ad - If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn't allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.More information #ad
Mixes with all antifreeze. Fixes cracks and leaks in radiator, head gasket, cylinder heads, freeze plugs, heater core, water pump casing and engine blocks. No draining or flushing. Permanent coolant leak repair - Just shake, pour and go.Brand | K-Seal #ad |
Manufacturer | K-Seal #ad |
Height | 1.9 Inches |
Length | 5.9 Inches |
Weight | 1 Pounds |
Width | 4.1 Inches |
Part Number | ST5516 |
Model | ST5516 |
Warranty | When K-Seal makes a repair we guarantee it will be permanent |
More information #ad
3. Bar's Leaks
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20 oz., Bar's Leaks 1100 Head Gasket Repair
#adBar's Leaks #ad - Repairs blown head gaskets. Head gasket sealant is not compatible with antifreeze and must only be added to the cooling system after ALL ANTIFREEZE has been flushed and removed. Included components: Unit, Instruction Guide.More information #ad
Seals cracked cylinder heads and blocks. Dual action 2 part formula — liquid ceramic: liquid penetrates large and small leaks to form a seal actually harder than the original head gasket — REINFORCED FIBERS: Fiber additives lock together with liquid to increase strength and promote a permanent seal. Stops block leaks.Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 8.3 Inches |
Length | 1.8 Inches |
Weight | 1.41 Pounds |
Width | 3.4 Inches |
Part Number | 1100 |
Model | 1100 |
Warranty | 1 year manufacturer |
More information #ad
4. Bar's Leaks
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Bar's Leaks Block Seal Head Gasket Fix
#adBar's Leaks #ad - 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 harden to permanently stop leaks.More information #ad
Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 2.5 Inches |
Length | 9.5 Inches |
Weight | 1.5 Pounds |
Width | 2.6 Inches |
Part Number | 1111 |
Model | 1111 |
Warranty | 1 year manufacturer |
More information #ad
5. ACDelco
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4 g Pack of 5, ACDelco GM Original Equipment 10-108 Cooling System Sealing Tabs
#adACDelco #ad - Designed for quick and easy application, assembly may be filled with oil or coolant immediately after applying sealant and torqueing the bolts. Engineered for use on a variety of engine components - effective on: oil pan, ladder frame, intake, manifold corners, t-joints, front and rear covers, manifold end seals, and cam covers.More information #ad
High viscosity product that cures when exposed to air.Brand | ACDelco #ad |
Manufacturer | ACDelco #ad |
Height | 0 Inches |
Length | 0 Inches |
Width | 0 Inches |
Part Number | 10-108 |
Model | 10-108 |
Warranty | No Warranty |
More information #ad
6. Bar's Leaks
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Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
#adBar's Leaks #ad - Stops heater Core And Radiator Leaks. Repairs blown Head And Intake Gasket Leaks. Fixes leaking Freeze And Core Plugs. Seals cracked Cylinder Heads And Blocks.More information #ad
Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 3.22 Inches |
Length | 9.78 Inches |
Weight | 2.5 Pounds |
Width | 3.22 Inches |
Part Number | HG-1 |
Model | HG-1 |
Warranty | Manufacturer Warranty |
More information #ad
7. Bar's Leaks
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16.9 oz , Gray, Bar's Leaks 1186 Liquid Aluminum Stop Leak
#adBar's Leaks #ad - Seals radiator leaks. Repairs gasket leaks and heater core leaks. Bar's leaks liquid aluminum stop leak seals radiator leaks. Lowers water temperature.More information #ad
Seals freeze plug leaks. Special shipping information: This item cannot be returned and has additional shipping restrictions. Repairs gasket leaks. Seals freeze plug leaks.Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 7.4 Inches |
Length | 2.6 Inches |
Weight | 1.2 Pounds |
Width | 2.6 Inches |
Part Number | 1186 |
Model | 1186 |
Warranty | 1 year manufacturer |
More information #ad
8. KALIMEX LTD
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K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair
#adKALIMEX LTD #ad - 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 of ASTM D3147.A permanent repair, guaranteed for the lifetime of the engine. Fixes blown head gaskets, cracked heads and blocks. If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn't allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.
More information #ad
Just pour & go – no need for expensive head Gasket Repairs - The Safe and Easy Way to Fix a Coolant Leak.Brand | KALIMEX LTD #ad |
Manufacturer | Solv-TecA #ad |
Height | 8 Inches |
Length | 2.5 Inches |
Weight | 1 Pounds |
Width | 2.5 Inches |
Part Number | KSLST3501 |
Model | KSLST3501 |
Warranty | Lifetime warranty does not cover abuse |
More information #ad
9. Bar's Leaks
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Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak, 18 oz.
#adBar's Leaks #ad - Repairs heater core leaks. Repairs blocks. Repairs blown head gaskets. Repairs freeze plug leaks. Seals larger leaks seals.More information #ad
Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 2.6 Inches |
Length | 7.5 Inches |
Weight | 1.3 Pounds |
Width | 2.6 Inches |
Part Number | 1109 |
Model | 1109 |
More information #ad
10. Bar's Leaks
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Bar's Leaks HDC Radiator Stop Leak Tablet, 60 Grams
#adBar's Leaks #ad - Conditions cooling system. Lubricates water pump seals. Helps control electrolysis. Seals leaks. Inhibits rust and corrosion.More information #ad
Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 0.8 Inches |
Length | 7.5 Inches |
Weight | 0.1 Pounds |
Width | 5 Inches |
Part Number | HDC |
Model | HDC |
Warranty | Manufacturer Warranty |
More information #ad