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    Oxygen Sensor

    Product number: ES20312-12B1
    ART: ES20312-12B1 / EAN: 5012759388655

    DELPHI
    Advised products
    Price incl. vat.
    € 80,54

    Core Charge 0.00

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    Leverdatum: 24-04-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    CHRYSLER CHRYSLER
    MAYBACH MAYBACH
    MERCEDES-BENZ MERCEDES-BENZ
    SMART SMART
    Manufacturer Productnumber
    MERCEDES-BENZ 001 5403 717 , 0015403717
    MERCEDES-BENZ 001 5405 617 , 0015405617
    MERCEDES-BENZ 001 5409 417 , 0015409417
    MERCEDES-BENZ 001 5409 517 , 0015409517
    MERCEDES-BENZ 002 5402 317 , 0025402317
    MERCEDES-BENZ A001 5403 717 , A0015403717
    MERCEDES-BENZ A001 5405 617 , A0015405617
    MERCEDES-BENZ A001 5409 417 , A0015409417
    MERCEDES-BENZ A001 5409 517 , A0015409517
    MERCEDES-BENZ A002 5402 317 , A0025402317
    CHRYSLER 05099817AA
    CHRYSLER 5099817AA
    MAYBACH 0015409517
    MAYBACH A0015409517
    SMART 000 3122 V004 , 0003122V004
    SMART 000 3122 V005 , 0003122V005
    SMART 0003122V004L00800
    SMART 0003122V005L00800
    Usage numbers
    ES20312-12B1
    5
    01276E+12

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    Oxygen Sensor

    The Oxygen Sensor (ES20312-12B1) measures exhaust oxygen levels for precise fuel mixture control. Porza ensures fast response, accuracy, and long-term durability.  

    FAQ

    Use our vehicle compatibility checker or enter your car’s make, model, and year to confirm fitment. If you’re unsure, contact our support team for assistance. Or, for extra peace of mind, purchase our 100% Fitment Guarantee service at checkout.


    While some parts are DIY-friendly, others may require professional installation. Check the product manual or consult a mechanic if unsure.


    Most installations only require basic tools, but some may need specialty tools. Check the product details or installation guide for recommendations.


    We offer both OEM and high-quality aftermarket parts. Each product listing specifies whether it's OEM or aftermarket.


    The materials vary by product but are always designed for durability and performance. Check the product details for specific material information.


    Most orders are processed within 24 hours and delivered within 2-5 business days. Expedited shipping options are also available at checkout.


    We accept returns within 30 days of delivery, provided the item is unused and in its original packaging. Visit our Returns page for more details.


    Yes! Most of our parts include a manufacturer warranty. Check the product details for specific coverage information.


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