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    Sale!

    Holley LSU4 Bosch Wideband O2 Sensor, 18mm x 1.5, For Avenger/Dominator/HP/Terminator | 554-101

    Vendor: Holley EFI
    Part Number: 554-101
    Save $26
    Sale Price $207.95 Regular Price $233.95

    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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    This LSU4 Bosch wideband oxygen sensor is a direct replacement for Holley HP, Dominator, Avenger, and Terminator EFI systems. Each sensor is hand-calibrated to ensure accurate readings when used with a Holley EFI system.

    Specifications:

    • Category: Emission Control
    • Band Type: Wide
    • Sensor Type: Lambda Wide Band
    • Thread Size: 18mm x 1.5, Screw-in
    • Part Type: Oxygen Sensor
    • Compatible With: Avenger, Dominator, HP, and Terminator EFI systems
    • Part Number: 554-101

    FAQ

    What systems does the 554-101 wideband sensor fit?

    It's a direct replacement for Holley HP, Dominator, Avenger, and Terminator EFI systems.

    What thread size does this sensor use?

    It uses an 18mm x 1.5 screw-in thread.

    Is this sensor calibrated?

    Yes, each sensor is hand-calibrated to ensure accurate readings when used with a Holley EFI system.

    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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