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K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

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  • K-seal St5501 K-seal Coolant Leak Repair, Shake, Pour And Go
    14.43
    Opentip.com

    K-seal St5501 K-seal Coolant Leak Repair, Shake, Pour And Go

    Delivery date & cost shown at checkout

  • K-Seal ST5501 K-Seal Permanent Coolant Leak Repair
    12.99
    CARiD.com

    K-Seal ST5501 K-Seal Permanent Coolant Leak Repair

    Delivery date & cost shown at checkout

  • K-Seal Coolant Leak Repair
    18.73
    TruckSpring.com

    K-Seal Coolant Leak Repair

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  • K-Seal Coolant System Repair Fluid
    20.04
    Merlin Motorsport

    K-Seal Coolant System Repair Fluid

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  • K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required
    12.45
    Amazon.com

    K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

    Delivery date & cost shown at checkout

  • K-Seal ST5501 Permanent Coolant Leak Repair
    15.49
    Amazon.com

    K-Seal ST5501 Permanent Coolant Leak Repair

    Delivery date & cost shown at checkout

  • K Seal Permanent Coolant Leak Repair 8 Fluid Ounces Treats Most Cars, Trucks and SUVs, Size: 8oz
    12.45
    Walmart

    K Seal Permanent Coolant Leak Repair 8 Fluid Ounces Treats Most Cars, Trucks and SUVs, Size: 8oz

    Delivery date & cost shown at checkout

  • K Seal Permanent Coolant Leak Repair 8 Fluid Ounces Treats Most Cars, Trucks and SUVs, Size: 8oz, Blue
    25.19
    Walmart

    K Seal Permanent Coolant Leak Repair 8 Fluid Ounces Treats Most Cars, Trucks and SUVs, Size: 8oz, Blue

    Delivery date & cost shown at checkout

  • K-seal St5501 Multi Purpose One Step Permanent Coolant Leak Repair Blue, Size: 8 fl oz
    16.99
    Walmart

    K-seal St5501 Multi Purpose One Step Permanent Coolant Leak Repair Blue, Size: 8 fl oz

    Delivery date & cost shown at checkout

  • K-seal St5501 Multi Purpose One Step Permanent Coolant Leak Repair, Blue, Size: 8 fl oz
    16.99
    Walmart

    K-seal St5501 Multi Purpose One Step Permanent Coolant Leak Repair, Blue, Size: 8 fl oz

    Delivery date & cost shown at checkout

  • K-seal St5501 Multi Purpose One Step Permanent Coolant Leak Repair, Size: 9.6 oz
    15.49
    Walmart

    K-seal St5501 Multi Purpose One Step Permanent Coolant Leak Repair, Size: 9.6 oz

    Delivery date & cost shown at checkout

  • K-seal St5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required
    15.99
    Walmart

    K-seal St5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

    Delivery date & cost shown at checkout

  • (4) K-seal Permanent Coolant Leak Repair 8oz Bottle St5501 "fixes Most
    68.94
    eBay

    (4) K-seal Permanent Coolant Leak Repair 8oz Bottle St5501 "fixes Most

    Delivery date & cost shown at checkout

  • 2-k-seal Permanent Coolant Leak Repair 8 Ounce Bottle St5501 "fixes
    39.91
    eBay

    2-k-seal Permanent Coolant Leak Repair 8 Ounce Bottle St5501 "fixes

    Delivery date & cost shown at checkout

  • Heavy Duty Permanent Coolant Leak Sealer - Versatile 8oz Stop Leak
    24.99
    eBay

    Heavy Duty Permanent Coolant Leak Sealer - Versatile 8oz Stop Leak

    Delivery date & cost shown at checkout

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Product Details

FIX IT FAST: Our multi-purpose solution works in minutes to quickly & permanently seal leaks in the radiator, head gasket, freeze plugs, block, heater matrix & water pump. Fixes most leaks in water-cooled engines
STOP HOLES & CRACKS: With just 1 step our unique formula will seek out each hole & crack, permanently sealing them, without any adverse impact on the efficiency of your engine cooling
EASY TO USE: K-Seal couldn't be simpler to use & requires no draining or flushing; just shake, pour & go - shake the bottle, add the fluid to your coolant system & run your engine as normal
VERSATILE COMPATIBILITY: Compatible with all types of antifreeze coolant. Suitable for use in both cars & light trucks with up to 12 cylinders. A permanent repair for the lifetime of the engine
PROFESSIONAL-GRADE RELIABILITY: Trusted by mechanics, our sealer delivers a durable & long-lasting repair. A cost-effective solution to engine coolant leaks, enhancing the reliability & performance of your vehicle’s cooling system. We've sold millions worldwide & are independently verified by university testing to meet ASTM D3147

Best Review

Customers find the sealant easy to use. They mention it's simple to pour into their cooling systems and like its speed. However, some customers dislike that it clogs. Opinions are mixed on leak prevention, functionality, cooling capacity, value for money, and smell.AI-generated from the text of customer reviews

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