• Upstream or Downstream O2 Oxygen Sensor For Buick Enclave Cadillac XT5 XT6 21084
  •  
  • Fit for: 
  • 2018-2024 Buick Enclave V6 3.6L 
  • 2017-2024 Cadillac XT5 V6 3.6L 
  • 2020-2024 Cadillac XT6 V6 3.6L 
  • 2019-2024 Chevrolet Blazer V6 3.6L 
  • 2017-2022 Chevrolet Colorado V6 3.6L 
  • 2018-2023 Chevrolet Traverse V6 3.6L 
  • 2024 Chevrolet Traverse Limited V6 3.6L 
  • 2017 GMC Acadia V6 3.6L New Model
  • 2018-2023 GMC Acadia V6 3.6L 
  • 2017-2022 GMC Canyon V6 3.6L 
  •  
  • Specifications: 
  • OE Numbers: 
  • 2348054, 12667438, 21084, 12666672, 12670253
  • Upstream Downstream O2 Oxygen Sensor 1X For Buick 2018-2023 2024 Enclave 2348054

    Upstream or Downstream O2 Oxygen Sensor For Buick Enclave Cadillac XT5 XT6 21084

     

    Fit for: 

    2018-2024 Buick Enclave V6 3.6L 

    2017-2024 Cadillac XT5 V6 3.6L 

    2020-2024 Cadillac XT6 V6 3.6L 

    2019-2024 Chevrolet Blazer V6 3.6L 

    2017-2022 Chevrolet Colorado V6 3.6L 

    2018-2023 Chevrolet Traverse V6 3.6L 

    2024 Chevrolet Traverse Limited V6 3.6L 

    2017 GMC Acadia V6 3.6L New Model

    2018-2023 GMC Acadia V6 3.6L 

    2017-2022 GMC Canyon V6 3.6L 

     

    Specifications: 

    OE Numbers: 

    2348054, 12667438, 21084, 12666672, 12670253

    Product Material: Stainless Steel

    Product Color: Silver

    Terminal Quantity: 4-Blade

    Packaging Weight: 124 g

    Packaging Dimensions (cm): 15.5 x 10.5 x 5

    Installation Position: Upstream or 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.

     

    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 Your Vehicle

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

     

    Package Includes: 

    Oxygen Sensor *1

     


    Item Specifics
    Compatible Make For Buick, For Cadillac, For Chevrolet, For GMC
    Compatible Year 2017 2018 2019 2020 2021 2022 2023 2024
    Package Includes 1x Oxygen Sensor
    Installation Position Upstream or Downstream
    OE/OEM Part Number 1 2348054
    OE/OEM Part Number 2 12667438
    OE/OEM Part Number 3 21084
    OE/OEM Part Number 4 12666672
    OE/OEM Part Number 5 12670253
    Color Silver
    Material Stainless Steel
    Number of Sensors 1
    Brand AUXITO
    Type Oxygen Sensor
    Manufacturer Warranty 1 Year
    Fitment Type Direct Replacement
    Terminal Quantity 4-Blade
    Manufacturer Part Number 2348054, 12667438, 21084, 12666672, 12670253
    Fit for 1 2018-2024 Buick Enclave V6 3.6L
    Fit for 2 2017-2024 Cadillac XT5 V6 3.6L
    Fit for 3 2020-2024 Cadillac XT6 V6 3.6L
    Fit for 4 2019-2024 Chevrolet Blazer V6 3.6L
    Fit for 5 2017-2022 Chevrolet Colorado V6 3.6L
    Fit for 6 2018-2023 Chevrolet Traverse V6 3.6L
    Fit for 7 2024 Chevrolet Traverse Limited V6 3.6L
    Fit for 8 2017 GMC Acadia V6 3.6L New Model
    Fit for 9 2018-2023 GMC Acadia V6 3.6L
    Fit for 10 2017-2022 GMC Canyon V6 3.6L
    Our Service Free shipping & Fast Home Delivery
    Vintage Car Part 2348054, 12667438, 21084, 12666672, 12670253
    Anticipated Ship Out Time Same day - 1 business day
    Returns 60-Days LOVE IT or RETURN IT!
    Quantity Sold individually
    Other Part Number 2348054, 12667438, 21084, 12666672, 12670253
    Universal Fitment No
    UPC Does Not Apply
    Packaging Weight 124 g
    Packaging Dimensions (cm) 15.5 x 10.5 x 5
    Performance Part 2348054, 12667438, 21084, 12666672, 12670253
    Feature 1 Corrosion-Resistant Build
    Feature 2 Efficient Contaminant Blocking
    Feature 3 Faster Response Time
    Feature 4 Optimized Engine Performance
    Feature 5 Perfect Fit Your Vehicle
    Part Link Number 2348054, 12667438, 21084, 12666672, 12670253

    Payment

    (1). We gladly accepts payment via PayPal, We will ship your item(s) within 24 hours.

    (2). We ship this item to US only via USPS first class mail. It usually takes 3-6 working days to deliver.

    (3). Before payment,Please keep the consistency of Paypal address and ebay address.

    (4). Quantity orders are welcome!

    Shipping

    (1) All items will be shipped in 24 hours after receiving your payment .

    (2) We ship this item to US only via USPS first class mail. It usually takes 3-6 working days to deliver.

    Returns

    (1). We offer 30 days return policy. Please contact us within 30 days t from the date you receive your order if you have any issues with the product or want return .Refund will be send after we got your resend package.

    (2). All returned items should be in the original packaging , return tracking information should be provided ..

    (3). Buyer is responsible for return shipping cost due to the problem not caused by item quality itself .

    Contact Us

    (1).Negative feedback will not help resolve any problems you have, please contact us via eBay messages before leaving negative feedback, our customer service will make best effort to help you with the issues.

    (2).We maintain high standards of excellenceand  strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately Before you give us neutral  or negative  feedback, so that we can satisfactorily address your concerns.

    FAQ

    Q1: Will this bulb fit my vehicle?
    A: We can match almost any vehicle to one of our bulb sizes. eBay only lets us include partial vehicle fitments per listing, but if your vehicle does not show up on the compatibility table at the top of our listings, welcome you to contact us for free consulation before purchasing a product.
     
    Q2: My item has not arrived, what's taking so long?
    A: Sometimes items take longer than expected, especially if it’s going far or to rural area. Check with your post office to see if your item has been held up. Sometimes USPS will not update a tracking number until it has arrived at its destination. If your item still has not arrived after a few days, let us know so we can double check for you and help solve it asap.
     
    Q3: Do I need to mention the Year, Make and Model in the notes when place order?
    A: YES. Please include the Year, Make, and Model in the notes section during checkout to ensure you receive everything needed for your kit!
     
    Q4: My bulbs won't fit, help!
    A: Special bulb holder may be required. See if you can take the holder from the stock bulb. If not, let us know.
    The bulb size may be wrong, double check the item you received with the item you ordered.
    Do you have an aftermarket lighting housing? These may not be perfectly fitted for aftermarket bulbs and will require some manual modifications.
     
    Q5: Neither side lighting up? Both sides flicker, flash, or work inconsistantly.
    A:Check the headlight fuses, and then check the ballast plugs to insure correct installation. If this doesn't work, there may be a voltage problem with the vehicle. You probably just need a relay or capacitor.
     
    Q6: WARNING ABOUT POLARITY
    Unlike halogen bulbs, LED are polarity sensitive.
    BEFORE you start your LED kit installation, verify the polarity on your vehicle by simply plugging the LED bulb into your vehicle socket.
    - if your light turns on, please proceed to install both bulbs onto your vehicle.
    - if your light DOES NOT turn on, disconnect the bulb and flip the socket in order to reverse the polarity (this will not damage your vehicle electrical system in any way). Once you made sure the LED bulb turns on, please proceed to install both bulbs onto your vehicle.
    Note: There is no convention when it comes to polarity. Different car manufactures have different polarity setup, even within the car model the polarity setup on your low beams and high beams might be different.

    Picture
    Upstream Downstream O2 Oxygen Sensor 1X For Buick 2018-2023 2024 Enclave 2348054

    Upstream or Downstream O2 Oxygen Sensor For Buick Enclave Cadillac XT5 XT6 21084

     

    Fit for: 

    2018-2024 Buick Enclave V6 3.6L 

    2017-2024 Cadillac XT5 V6 3.6L 

    2020-2024 Cadillac XT6 V6 3.6L 

    2019-2024 Chevrolet Blazer V6 3.6L 

    2017-2022 Chevrolet Colorado V6 3.6L 

    2018-2023 Chevrolet Traverse V6 3.6L 

    2024 Chevrolet Traverse Limited V6 3.6L 

    2017 GMC Acadia V6 3.6L New Model

    2018-2023 GMC Acadia V6 3.6L 

    2017-2022 GMC Canyon V6 3.6L 

     

    Specifications: 

    OE Numbers: 

    2348054, 12667438, 21084, 12666672, 12670253

    Product Material: Stainless Steel

    Product Color: Silver

    Terminal Quantity: 4-Blade

    Packaging Weight: 124 g

    Packaging Dimensions (cm): 15.5 x 10.5 x 5

    Installation Position: Upstream or 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.

     

    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 Your Vehicle

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

     

    Package Includes: 

    Oxygen Sensor *1

     

    Item Specifics
    Compatible Make :For Buick, For Cadillac, For Chevrolet, For GMC
    Compatible Year :2017 2018 2019 2020 2021 2022 2023 2024
    Package Includes :1x Oxygen Sensor
    Installation Position : Upstream or Downstream
    OE/OEM Part Number 1 :2348054
    OE/OEM Part Number 2 :12667438
    OE/OEM Part Number 3 :21084
    OE/OEM Part Number 4 :12666672
    OE/OEM Part Number 5 :12670253
    Color : Silver
    Material : Stainless Steel
    Number of Sensors :1
    Brand :AUXITO
    Type :Oxygen Sensor
    Manufacturer Warranty :1 Year
    Fitment Type :Direct Replacement
    Terminal Quantity : 4-Blade
    Manufacturer Part Number :2348054, 12667438, 21084, 12666672, 12670253
    Fit for 1 :2018-2024 Buick Enclave V6 3.6L
    Fit for 2 :2017-2024 Cadillac XT5 V6 3.6L
    Fit for 3 :2020-2024 Cadillac XT6 V6 3.6L
    Fit for 4 :2019-2024 Chevrolet Blazer V6 3.6L
    Fit for 5 :2017-2022 Chevrolet Colorado V6 3.6L
    Fit for 6 :2018-2023 Chevrolet Traverse V6 3.6L
    Fit for 7 :2024 Chevrolet Traverse Limited V6 3.6L
    Fit for 8 :2017 GMC Acadia V6 3.6L New Model
    Fit for 9 :2018-2023 GMC Acadia V6 3.6L
    Fit for 10 :2017-2022 GMC Canyon V6 3.6L
    Our Service :Free shipping & Fast Home Delivery
    Vintage Car Part :2348054, 12667438, 21084, 12666672, 12670253
    Anticipated Ship Out Time :Same day - 1 business day
    Returns :60-Days LOVE IT or RETURN IT!
    Quantity :Sold individually
    Other Part Number :2348054, 12667438, 21084, 12666672, 12670253
    Universal Fitment :No
    UPC :Does Not Apply
    Packaging Weight : 124 g
    Packaging Dimensions (cm) :15.5 x 10.5 x 5
    Performance Part :2348054, 12667438, 21084, 12666672, 12670253
    Feature 1 :Corrosion-Resistant Build
    Feature 2 :Efficient Contaminant Blocking
    Feature 3 :Faster Response Time
    Feature 4 :Optimized Engine Performance
    Feature 5 :Perfect Fit Your Vehicle
    Part Link Number :2348054, 12667438, 21084, 12666672, 12670253


    (1). We gladly accepts payment via PayPal, We will ship your item(s) within 24 hours.

    (2). We ship this item to US only via USPS first class mail. It usually takes 3-6 working days to deliver.

    (3). Before payment,Please keep the consistency of Paypal address and ebay address.

    (4). Quantity orders are welcome!

    (1) All items will be shipped in 24 hours after receiving your payment .

    (2) We ship this item to US only via USPS first class mail. It usually takes 3-6 working days to deliver.

    (1). We offer 30 days return policy. Please contact us within 30 days t from the date you receive your order if you have any issues with the product or want return .Refund will be send after we got your resend package.

    (2). All returned items should be in the original packaging , return tracking information should be provided ..

    (3). Buyer is responsible for return shipping cost due to the problem not caused by item quality itself .

    (1).Negative feedback will not help resolve any problems you have, please contact us via eBay messages before leaving negative feedback, our customer service will make best effort to help you with the issues.

    (2).We maintain high standards of excellenceand  strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately Before you give us neutral  or negative  feedback, so that we can satisfactorily address your concerns.

    Q1: Will this bulb fit my vehicle?
    A: We can match almost any vehicle to one of our bulb sizes. eBay only lets us include partial vehicle fitments per listing, but if your vehicle does not show up on the compatibility table at the top of our listings, welcome you to contact us for free consulation before purchasing a product.
     
    Q2: My item has not arrived, what's taking so long?
    A: Sometimes items take longer than expected, especially if it’s going far or to rural area. Check with your post office to see if your item has been held up. Sometimes USPS will not update a tracking number until it has arrived at its destination. If your item still has not arrived after a few days, let us know so we can double check for you and help solve it asap.
     
    Q3: Do I need to mention the Year, Make and Model in the notes when place order?
    A: YES. Please include the Year, Make, and Model in the notes section during checkout to ensure you receive everything needed for your kit!
     
    Q4: My bulbs won't fit, help!
    A: Special bulb holder may be required. See if you can take the holder from the stock bulb. If not, let us know.
    The bulb size may be wrong, double check the item you received with the item you ordered.
    Do you have an aftermarket lighting housing? These may not be perfectly fitted for aftermarket bulbs and will require some manual modifications.
     
    Q5: Neither side lighting up? Both sides flicker, flash, or work inconsistantly.
    A:Check the headlight fuses, and then check the ballast plugs to insure correct installation. If this doesn't work, there may be a voltage problem with the vehicle. You probably just need a relay or capacitor.
     
    Q6: WARNING ABOUT POLARITY
    Unlike halogen bulbs, LED are polarity sensitive.
    BEFORE you start your LED kit installation, verify the polarity on your vehicle by simply plugging the LED bulb into your vehicle socket.
    - if your light turns on, please proceed to install both bulbs onto your vehicle.
    - if your light DOES NOT turn on, disconnect the bulb and flip the socket in order to reverse the polarity (this will not damage your vehicle electrical system in any way). Once you made sure the LED bulb turns on, please proceed to install both bulbs onto your vehicle.
    Note: There is no convention when it comes to polarity. Different car manufactures have different polarity setup, even within the car model the polarity setup on your low beams and high beams might be different.


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    On May 27, 2026 at 09:26:45 PDT, seller added the following information:

    Datacaciques