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    QA1 63 Series Sealed Aluminum Coil-Over Twin Tube Shock | 13.38/20.30 in, Valving 5-400 | 6375-400

    Vendor: QA1
    Part Number: 6375-400
    Regular Price $241.95

    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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    The QA1 63 Series is a sealed, non-rebuildable version of the 62 Series. It is most commonly used in coil-over applications on both dirt and asphalt tracks. The twin tube design gives strong feel and grip across all track conditions and performs especially well when grip is low. Built as a spec shock for specific tracks or series, the 63 Series suits late model and modified cars.

    Specifications:

    • Series: 63 (sealed version of the 62 Series)
    • Type: Twin tube coil-over shock
    • Construction: Sealed, non-rebuildable
    • Body: Large body, aluminum threaded
    • Material: Aluminum
    • Compressed height: 13.38 in
    • Extended height: 20.30 in
    • Mounting: Eyelet top and eyelet bottom
    • Valving: 5-400
    • Application: Dirt and asphalt circle track
    • Part number: 6375-400

    FAQ

    What is the QA1 63 Series shock?

    The 63 Series is a sealed, non-rebuildable version of the QA1 62 Series. It is an aluminum threaded large body twin tube coil-over shock used on both dirt and asphalt circle track cars.

    Can the 63 Series shock be rebuilt?

    No. The 63 Series is a sealed shock and is not rebuildable.

    What are the mounting ends on part 6375-400?

    Part 6375-400 uses an eyelet top and eyelet bottom mount.

    What is the valving on part 6375-400?

    Part 6375-400 has a valving of 5-400.

    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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