• Up & Downstream Oxygen O2 Sensors For BMW 128I 325XI 528I X3 X5 Z4 234-5138
  •  
  • Fit for: 
  • BMW 1 SERIES M L6-3.0 2011 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 128I L6-3.0 2013-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 135I L6-3.0 2010-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 323I L6-2.5 2011-2010 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 325I L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 325XI L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 328I L6-3.0 2013-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream
  • BMW 328I XDRIVE L6-3.0 2013-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    • 4-40X For BMW 135i 323i 325i 328i 335i 528i Upstream Downstream Oxygen O2 Sensor

    Up & Downstream Oxygen O2 Sensors For BMW 128I 325XI 528I X3 X5 Z4 234-5138

     

    Fit for: 

    BMW 1 SERIES M L6-3.0 2011 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 128I L6-3.0 2013-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 135I L6-3.0 2010-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 323I L6-2.5 2011-2010 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 325I L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 325XI L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 328I L6-3.0 2013-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 328I XDRIVE L6-3.0 2013-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 328XI L6-3.0 2008-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 330I L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 330XI L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335I L6-3.0 2010-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335IS L6-3.0 2013-2011 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335I XDRIVE L6-3.0 2010-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335XI L6-3.0 2008-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 528I L6-3.0 2010-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 528I XDRIVE L6-3.0 2010-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 528XI L6-3.0 2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X3 L6-3.0 2010 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X3 L6-3.0 2009-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X5 L6-3.0 2010-2009 GAS ; Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X5 L6-3.0 2008-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW Z4 L6-3.0 2015-2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

     

    Specifications: 

    OE Numbers: 

    234-5138, 234-5139, 234-4876, 234-4892

    Product Material: Stainless Steel

    Color: Black, Silver

    Installation Position: Upstream, Downstream

    Functions: 

    1. The Upstream oxygen sensor is used to Monitor Raw Exhaust Gas to Adjust Air-fuel Ratio in Real-time, i.e., it is used to Detect Whether the Exhaust Gas Exceeds the Standard.

    2. The Downstream oxygen sensor is mainly used to Detect Whether the Three-way Catalytic Converter Works Normally.

    Packaging Weight: 543 g

    Packaging Sizes (cm): 19.5 x 10.5 x 6.5

     

    Features: 

    *Corrosion-Resistant Build

    Stainless steel construction withstands exhaust heat and chemicals for long-term reliability.

    *Efficient Contaminant Blocking

    PTFE filter stops efficiency-robbing contaminants ( like soot, silicone, and grime ) from damaging the sensing element, which keeps the accuracy of the sensor and extends its lifespan.

    *Faster Response Time

    Precision zirconia element detects air-fuel changes instantly for smoother idle, sharper acceleration, and precise fuel control.

    *Optimized Engine Performance

    Maximizes fuel efficiency, reduces harmful emissions, and ensures smog test compliance.

    *Perfect Fit

    Built to strict quality control standards and with 100% factory-tested to ensure stable performance. Direct replacement, just install and drive.

     

    Packaging Include: 

    Oxygen Sensors * (Upstream + Downstream) AS YOUR SELECT


     


    Item Specifics
    Number of Sensors AS YOUR SELECT
    Position Upstream (Left + Right) & Downstream (Left + Right)
    Terminal Type Blade & Bullet
    Manufacturer Part Number 234-5138 234-5139 234-4876 234-4892
    Superseded Part Number 234-5138, 234-5139, 234-4876, 234-4892
    Placement on Vehicle Front, Left, Rear, Right, Upper, Upstream, Downstream
    Brand AUXITO
    Interchange Part Number 234-5138, 234-5139, 234-4876, 234-4892
    Sensor Type Air/Fuel Ratio Sensor
    Manufacturer Warranty 2 Years
    OE/OEM Part Number 234-5138, 234-5139, 234-4876, 234-4892
    Interchange Part Number 4 11787545244, 11787569968, 11787614322
    Interchange Part Number 2 11787558081, 11787558087, 11787589138, 0035427218
    Features Calibrated, Direct Fit, Easy Installation, Wired
    Interchange Part Number 3 11787557756, 11787558055, 11787526262, 11787545074
    Country/Region of Manufacture China
    Wire Quantity As Picture Show
    Type Oxygen Sensors
    Items Included Oxygen Sensors
    Connector Color As Picture Show
    Material Stainless Steel
    Universal Fitment Yes
    Performance Part Yes
    Vintage Car Part Yes
    Mounting Style Bolt-On
    Installation Position Upstream, Downstream
    Color Black, Silver
    Fit for 1 BMW 1 SERIES M L6-3.0 2011 Cylinder 1-6
    Fit for 2 BMW 128I L6-3.0 2013-2008 Cylinder 1-6
    Fit for 3 BMW 135I L6-3.0 2010-2008 Cylinder 1-6
    Fit for 4 BMW 323I L6-2.5 2011-2010 Cylinder 1-6
    Fit for 5 BMW 325I L6-3.0 2006 Cylinder 1-6
    Fit for 6 BMW 325XI L6-3.0 2006 Cylinder 1-6
    Fit for 7 BMW 328I L6-3.0 2013-2007 Cylinder 1-6
    Fit for 8 BMW 328I XDRIVE L6-3.0 2013-2009 Cylinder 1-6
    Fit for 9 BMW 328XI L6-3.0 2008-2007 Cylinder 1-6
    Fit for 10 BMW 330I L6-3.0 2006 Cylinder 1-6
    Fit for 11 BMW 330XI L6-3.0 2006 Cylinder 1-6
    Fit for 12 BMW 335I L6-3.0 2010-2007 Cylinder 1-6
    Fit for 13 BMW 335IS L6-3.0 2013-2011 Cylinder 1-6
    Fit for 14 BMW 335I XDRIVE L6-3.0 2010-2009 Cylinder 1-6
    Fit for 15 BMW 335XI L6-3.0 2008-2007 Cylinder 1-6

    Payment
    1. 1. We can only accept payment from PayPal.
    2. 2. Please keep the consistency of Paypal address and ebay address.
    Shipping
    • 1. All items will be shipped in 12 hours after receiving your payment .
    • 2. We ship this item to US only via USPS first class mail. It usually takes 3-5 working days to deliver.
    Returns
    • 1. We offer 30 days return policy.
    • 2. Please contact us within 30 days from the date you receive your package if you have any questions with the products .
    • 3. Refund will be sent after we got your returned package.
    • 4. All returned items should be in the original packaging with tracking number.
    Contact Us
    • We work from Monday - Saturday 9:00AM - 6:00PM, but we will reply once we get your message. There will be delay on response if you send message or E-Mail on Sunday.

     

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    4-40X For BMW 135i 323i 325i 328i 335i 528i Upstream Downstream Oxygen O2 Sensor

    Up & Downstream Oxygen O2 Sensors For BMW 128I 325XI 528I X3 X5 Z4 234-5138

     

    Fit for: 

    BMW 1 SERIES M L6-3.0 2011 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 128I L6-3.0 2013-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 135I L6-3.0 2010-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 323I L6-2.5 2011-2010 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 325I L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 325XI L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 328I L6-3.0 2013-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 328I XDRIVE L6-3.0 2013-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 328XI L6-3.0 2008-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 330I L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 330XI L6-3.0 2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335I L6-3.0 2010-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335IS L6-3.0 2013-2011 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335I XDRIVE L6-3.0 2010-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 335XI L6-3.0 2008-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 528I L6-3.0 2010-2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 528I XDRIVE L6-3.0 2010-2009 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW 528XI L6-3.0 2008 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X3 L6-3.0 2010 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X3 L6-3.0 2009-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X5 L6-3.0 2010-2009 GAS ; Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW X5 L6-3.0 2008-2007 Cylinder 1-6 ; 2 Upstream & 2 Downstream

    BMW Z4 L6-3.0 2015-2006 Cylinder 1-6 ; 2 Upstream & 2 Downstream

     

    Specifications: 

    OE Numbers: 

    234-5138, 234-5139, 234-4876, 234-4892

    Product Material: Stainless Steel

    Color: Black, Silver

    Installation Position: Upstream, Downstream

    Functions: 

    1. The Upstream oxygen sensor is used to Monitor Raw Exhaust Gas to Adjust Air-fuel Ratio in Real-time, i.e., it is used to Detect Whether the Exhaust Gas Exceeds the Standard.

    2. The Downstream oxygen sensor is mainly used to Detect Whether the Three-way Catalytic Converter Works Normally.

    Packaging Weight: 543 g

    Packaging Sizes (cm): 19.5 x 10.5 x 6.5

     

    Features: 

    *Corrosion-Resistant Build

    Stainless steel construction withstands exhaust heat and chemicals for long-term reliability.

    *Efficient Contaminant Blocking

    PTFE filter stops efficiency-robbing contaminants ( like soot, silicone, and grime ) from damaging the sensing element, which keeps the accuracy of the sensor and extends its lifespan.

    *Faster Response Time

    Precision zirconia element detects air-fuel changes instantly for smoother idle, sharper acceleration, and precise fuel control.

    *Optimized Engine Performance

    Maximizes fuel efficiency, reduces harmful emissions, and ensures smog test compliance.

    *Perfect Fit

    Built to strict quality control standards and with 100% factory-tested to ensure stable performance. Direct replacement, just install and drive.

     

    Packaging Include: 

    Oxygen Sensors * (Upstream + Downstream) AS YOUR SELECT


     

    Item Specifics
    Number of Sensors AS YOUR SELECT
    Position Upstream (Left + Right) & Downstream (Left + Right)
    Terminal Type Blade & Bullet
    Manufacturer Part Number 234-5138 234-5139 234-4876 234-4892
    Superseded Part Number 234-5138, 234-5139, 234-4876, 234-4892
    Placement on Vehicle Front, Left, Rear, Right, Upper, Upstream, Downstream
    Brand AUXITO
    Interchange Part Number 234-5138, 234-5139, 234-4876, 234-4892
    Sensor Type Air/Fuel Ratio Sensor
    Manufacturer Warranty 2 Years
    OE/OEM Part Number 234-5138, 234-5139, 234-4876, 234-4892
    Interchange Part Number 4 11787545244, 11787569968, 11787614322
    Interchange Part Number 2 11787558081, 11787558087, 11787589138, 0035427218
    Features Calibrated, Direct Fit, Easy Installation, Wired
    Interchange Part Number 3 11787557756, 11787558055, 11787526262, 11787545074
    Country/Region of Manufacture China
    Wire Quantity As Picture Show
    Type Oxygen Sensors
    Items Included Oxygen Sensors
    Connector Color As Picture Show
    Material Stainless Steel
    Universal Fitment Yes
    Performance Part Yes
    Vintage Car Part Yes
    Mounting Style Bolt-On
    Installation Position Upstream, Downstream
    Color Black, Silver
    Fit for 1 BMW 1 SERIES M L6-3.0 2011 Cylinder 1-6
    Fit for 2 BMW 128I L6-3.0 2013-2008 Cylinder 1-6
    Fit for 3 BMW 135I L6-3.0 2010-2008 Cylinder 1-6
    Fit for 4 BMW 323I L6-2.5 2011-2010 Cylinder 1-6
    Fit for 5 BMW 325I L6-3.0 2006 Cylinder 1-6
    Fit for 6 BMW 325XI L6-3.0 2006 Cylinder 1-6
    Fit for 7 BMW 328I L6-3.0 2013-2007 Cylinder 1-6
    Fit for 8 BMW 328I XDRIVE L6-3.0 2013-2009 Cylinder 1-6
    Fit for 9 BMW 328XI L6-3.0 2008-2007 Cylinder 1-6
    Fit for 10 BMW 330I L6-3.0 2006 Cylinder 1-6
    Fit for 11 BMW 330XI L6-3.0 2006 Cylinder 1-6
    Fit for 12 BMW 335I L6-3.0 2010-2007 Cylinder 1-6
    Fit for 13 BMW 335IS L6-3.0 2013-2011 Cylinder 1-6
    Fit for 14 BMW 335I XDRIVE L6-3.0 2010-2009 Cylinder 1-6
    Fit for 15 BMW 335XI L6-3.0 2008-2007 Cylinder 1-6


    1. 1. We can only accept payment from PayPal.
    2. 2. Please keep the consistency of Paypal address and ebay address.
    • 1. All items will be shipped in 12 hours after receiving your payment .
    • 2. We ship this item to US only via USPS first class mail. It usually takes 3-5 working days to deliver.
    • 1. We offer 30 days return policy.
    • 2. Please contact us within 30 days from the date you receive your package if you have any questions with the products .
    • 3. Refund will be sent after we got your returned package.
    • 4. All returned items should be in the original packaging with tracking number.
    • We work from Monday - Saturday 9:00AM - 6:00PM, but we will reply once we get your message. There will be delay on response if you send message or E-Mail on Sunday.

     


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    On Oct 26, 2026 at 08:00:57 PDT, seller added the following information:

    Datacaciques