K-Seal ST3501 Pour & Go Head Gasket Sealer, 16 oz – Repairs Blown Head Gaskets, Cracked Heads & Engine Blocks
K-Seal ST3501 Pour & Go Head Gasket Sealer, 16 oz – Repairs Blown Head Gaskets, Cracked Heads & Engine Blocks
Find the Right K-Seal Product
K-Seal Coolant Leak Repair |
K-Seal Head Gasket Repair |
K-Seal HD Coolant Leak Repair |
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Best Application For everyday coolant leaks in cars, motorcycles, and light trucks. |
Best Application For head gasket leaks, cracked heads, and porous block problems. |
Best Application For larger engines, HGVs, tractors, heavy plant, and commercial vehicles. |
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Shake, Pour & Go Easy one-step formula. Just shake, pour, and go. No draining or flushing needed. |
Shake, Pour & Go Simple pour-and-go formula for head gasket and block repair. |
Shake, Pour & Go Heavy-duty pour-and-go formula designed for larger cooling systems. |
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Seals Common Leaks Helps seal leaks in radiators, heater cores, water pumps, freeze plugs & blocks. |
Seals Common Leaks Helps repair blown head gaskets, cracked heads, and porous blocks. |
Seals Common Leaks Helps seal leaks in radiators, head gaskets, heater cores, water pumps & blocks. |
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Coolant Compatible Works with all types of antifreeze and coolant. |
Coolant Compatible Works with all water-cooled engines and common coolant types. |
Coolant Compatible Compatible with antifreeze and coolant systems in larger engines. |
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System Capacity 8 fl. oz. bottle treats cooling systems up to 20 quarts. |
System Capacity 16 fl. oz. bottle for head gasket and block repair applications. |
System Capacity 16 fl. oz. bottle treats larger cooling systems up to 60 quarts. |
- FIX IT FAST: Our advanced formula with 33% more sealing power than regular K-Seal, ensures a long-lasting, seal for challenging leaks. Fixes blown head gaskets, cracked heads & porous engine blocks in cars
- STOP HOLES & CRACKS: With just 1 step our unique formula with ceramic micro-fibres, will seal leaks up to 0.64mm in size, without any adverse impact on the engine
- VERSATILE COMPATIBILITY: Works with all types of coolant & compatible with a wide range of vehicle engine materials & heavy duty machinery.
- Attention: If you notice bubbles coming from the radiator or coolant reservoir, or if K-Seal engine coolant stop leak is not sealing, the system might be over-pressurized. Refer to the Technical Specification section of this page for additional instructions to ensure a successful repair. Over 8 million bottles sold worldwide!
Ingredients
Contains: Zinc Gluconate, 4-Nonylphenol, Branched, Ethoxylated, Borax and Copper.