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    Sale!

    Holley Digital Dash I/O Adapter, Replacement w/ Firmware USB Drive | 558-432

    Vendor: Holley EFI
    Part Number: 558-432
    Save $22
    $169.95 $191.95

    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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    Product DetailsFAQReviewsRelated Products

    This is a replacement input/output adapter for Holley Digital Dash displays, supplied with a USB memory stick containing the firmware needed to support the adapter.

    Specifications:

    • Replacement I/O Adapter
    • Input/Output Adapter
    • Includes USB Drive with Required Firmware
    • Color: Black
    • Part Number: 558-432

    To update, turn off the dash, plug in the included USB stick, and power the dash back on; the update restores factory standalone default screens. Do not remove power until the update finishes.

    FAQ

    What does this adapter do?

    It's a replacement input/output adapter for Holley Digital Dash displays.

    Does it come with firmware?

    Yes, a USB memory stick is included with the firmware needed to support the I/O adapter.

    What happens during the firmware update?

    The update replaces all dash screens with the factory standalone default. Power must stay on until the update completes.

    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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