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    Sale!

    AEM Bosch UEGO Replacement Sensor, 4.2LSU Wideband O2 | 30-2001

    Vendor: AEM Electronics
    Part Number: 30-2001
    Save $26.79
    $106.16 $132.95

    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

    AEM's Bosch 4.2LSU Wideband UEGO O2 replacement sensor kit includes only the sensor, with attached cable and male connector, and is intended to replace an existing mounted wideband sensor used with AEM wideband air/fuel UEGO controllers. These sensors have a laser-etched, calibrated resistor in the sensor's connector body that is specifically created for the exact sensor it is attached to; modifying it will invalidate the sensor's output.

    Warranty

    Specifications:

    • Bosch 4.2LSU wideband O2 sensor, laboratory-calibrated at the Bosch factory, accurate to 0.1 AFR
    • Never requires free-air calibration when used with an AEM wideband AFR controller and connector plug
    • High-quality sealed sensor housing with 360-degree welded wetted area, virtually impervious to automotive fluids
    • Connector and pins included; replacement sensor only
    • Compatible with AEM Infinity Engine Management Systems and Wideband Controllers including 30-4100, 30-4900, 30-2310, 30-2340, 30-2340-N, 30-5130, 30-5143, and 30-2320
    • Part Number: 30-2001

    FAQ

    Which AEM controllers does this sensor work with?

    It is a replacement sensor for AEM's Infinity Engine Management Systems and Wideband Controllers, including part numbers 30-4100, 30-4900, 30-2310, 30-2340, 30-2340-N, 30-5130, 30-5143, and 30-2320.

    Does this sensor need free-air calibration?

    No, it never requires free-air calibration when used with an AEM controller and connector plug.

    Does this kit include the connector?

    Yes, the connector and pins are included; the kit is the replacement sensor only.

    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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