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    • Chevrolet Performance Cooling System Sealant Tablets, 4 Gram Set of 5 | 12378255
    • GMP12378255.jpg

    Chevrolet Performance Cooling System Sealant Tablets, 4 Gram Set of 5 | 12378255

    Part Number: 12378255
    Regular Price $4.49

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    These Chevrolet Performance cooling system sealant tablets are a stop-leak product that dissolves in the coolant to seal small leaks. The package contains five 4-gram tablets.

    Specifications:

    • Cooling system sealant / stop-leak tablets
    • 4 grams per tablet
    • Set of 5 (20 grams total)
    • Part number: 12378255

    Applications:

    • GM engine cooling systems

    FAQ

    What are tablets 12378255 used for?

    They are a stop-leak product that seals small cooling system leaks.

    How many tablets are included?

    There are five 4-gram tablets, 20 grams total.

    How are they used?

    They dissolve in the coolant to seal small leaks.

    What cooling systems are they for?

    They are formulated for GM engine cooling systems.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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