• Compatibility:
  • 2003-2006 Chevrolet Silverado 1500 4.3L 2003-2005 Chevrolet Silverado 1500 4.8L 2003-2006 Chevrolet Tahoe 4.8L 2003-2006 GMC Sierra 1500 4.3L 2003-2005 GMC Sierra 1500 4.8L 2003-2005 GMC Yukon 4.8L
  •  
  • Q&A:
  •  
  • Q:What is Differences Between upstream and downstream O2 Sensor?

    • 4pcs Upper+Under Oxygen O2 02 Sensor Fits 03-06 Chevy Silverado Tahoe 1500 4.8L

    Compatibility:

    2003-2006 Chevrolet Silverado 1500 4.3L
    2003-2005 Chevrolet Silverado 1500 4.8L
    2003-2006 Chevrolet Tahoe 4.8L
    2003-2006 GMC Sierra 1500 4.3L
    2003-2005 GMC Sierra 1500 4.8L
    2003-2005 GMC Yukon 4.8L

     

    Q&A:

     

    Q:What is Differences Between upstream and downstream O2 Sensor?

    A:The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
       The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.

     

    Q:When should I replace oxygen sensor ?
    A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.

     

    Type of Oxygen Sensor

    Range of Year

    Service Interval (Advice)

    Unheated 1 or 2 Wires

    1976 to Early-1990's

    30000 to 50000 km

    Heated 3 or 4 Wires

    Mid-1980's to mid-1990's

    60000 km

    Modern 4 or 5 wires

    Mid-1990's to Now

    100000 km

     

    Q:What is a California emissions sensor? How do I know if I need one?

    A:A California emissions O2 sensor is meant for vehicles that are designed to meet California emission regulations. Such vehicles should have a sticker under the hood or on the driver’s door jamb that identify them.

     

    Q:How should I notice when install oxygen sensor ?
    A:

    • Remove the tools: wrench M22
    • Before install,make sure installation location surface cleaning
    • Oxygen sensor installation torque is 40 ~ 50 nm, and the installation of the fat use regulations 
    • Fixed through the clamp,if wiring harness is longer than the original

    Item Specifics
    Brand HQAS-accessories
    Manufacturer Part Number HQA991AC919CE
    Manufacturer Warranty 1 Year
    Warranty 1 Year
    # of Wires 4
    Length 700mm
    Interchange Part Number 1B234-4407
    Cross Reference Part Number B2344407
    Other Part Number 3B234-4651
    Package 4 pieces of sensors
    Fitment Directly Replacement
    Position Front Rear (Details see compatibility)
    Type Oxygen Sensor
    Feature ESCP
    Type Sensor
    Features Direct Fit

    Payment

    We accept multiple payment methods
    Payments are expected within 7 days after the last winning auction is closed;
    Otherwise Unpaid Item Dispute will be filed with eBay.

    Shipping
    • Product will be shipped within 2 business days after full payment is received and verified. Delivery Time is about 3-7 business days to most  of countries.
    • All domestic orders will be shipped via USPS, UPS  or FedEx from our US warehouse and usually arrives to your door in about  3-5 business days.
    • We ship the package to your shipping address in eBay. Please tell us your shipping address if it is different from the one in eBay.
    • The tracking  number will be given for the customer to check the shipping status online (registered or faster service only).
    • We are not  responsible for any wrong or undeliverable addresses. Please verify and  update your shipping address on eBay during checkout.

     

    Returns
    We stand behind every product we sell.
    • All of our brand new items come with a 60-Days money-back or exchange guarantee.
    •  
    Contact Us

    Q: How do I pay for my purchase?
    A: MY store accepts PayPal. 
    Q: When will the item be shipped out?
    A: This item will be shipped with 2 business day once payment completed.
    Q: Where is my tracking number?
    A: Please log on your account, click "my eBay"-->"my summary", or open your email box and find the shipping notification email.
    Q: How do I return an item?
    A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]

    Q: How do I pay for my purchase?
    A: MY store accepts PayPal. 
    Q: When will the item be shipped out?
    A: This item will be shipped with 2 business day once payment completed.
    Q: Where is my tracking number?
    A: Please log on your account, click "my eBay"-->"my summary", or open your email box and find the shipping notification email.
    Q: How do I return an item?
    A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]

    We are dedicated to provide high quality products and satisfied customer service to our sincerely customers, so if there's any questions or problems with our products or service, feel free to contact us please.

    4pcs Upper+Under Oxygen O2 02 Sensor Fits 03-06 Chevy Silverado Tahoe 1500 4.8L

    Compatibility:

    2003-2006 Chevrolet Silverado 1500 4.3L
    2003-2005 Chevrolet Silverado 1500 4.8L
    2003-2006 Chevrolet Tahoe 4.8L
    2003-2006 GMC Sierra 1500 4.3L
    2003-2005 GMC Sierra 1500 4.8L
    2003-2005 GMC Yukon 4.8L

     

    Q&A:

     

    Q:What is Differences Between upstream and downstream O2 Sensor?

    A:The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
       The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.

     

    Q:When should I replace oxygen sensor ?
    A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.

     

    Type of Oxygen Sensor

    Range of Year

    Service Interval (Advice)

    Unheated 1 or 2 Wires

    1976 to Early-1990's

    30000 to 50000 km

    Heated 3 or 4 Wires

    Mid-1980's to mid-1990's

    60000 km

    Modern 4 or 5 wires

    Mid-1990's to Now

    100000 km

     

    Q:What is a California emissions sensor? How do I know if I need one?

    A:A California emissions O2 sensor is meant for vehicles that are designed to meet California emission regulations. Such vehicles should have a sticker under the hood or on the driver’s door jamb that identify them.

     

    Q:How should I notice when install oxygen sensor ?
    A:

    • Remove the tools: wrench M22
    • Before install,make sure installation location surface cleaning
    • Oxygen sensor installation torque is 40 ~ 50 nm, and the installation of the fat use regulations 
    • Fixed through the clamp,if wiring harness is longer than the original


    We accept multiple payment methods
    Payments are expected within 7 days after the last winning auction is closed;
    Otherwise Unpaid Item Dispute will be filed with eBay.

    • Product will be shipped within 2 business days after full payment is received and verified. Delivery Time is about 3-7 business days to most  of countries.
    • All domestic orders will be shipped via USPS, UPS  or FedEx from our US warehouse and usually arrives to your door in about  3-5 business days.
    • We ship the package to your shipping address in eBay. Please tell us your shipping address if it is different from the one in eBay.
    • The tracking  number will be given for the customer to check the shipping status online (registered or faster service only).
    • We are not  responsible for any wrong or undeliverable addresses. Please verify and  update your shipping address on eBay during checkout.

     

    We stand behind every product we sell.
    • All of our brand new items come with a 60-Days money-back or exchange guarantee.
    •  

    Q: How do I pay for my purchase?
    A: MY store accepts PayPal. 
    Q: When will the item be shipped out?
    A: This item will be shipped with 2 business day once payment completed.
    Q: Where is my tracking number?
    A: Please log on your account, click "my eBay"-->"my summary", or open your email box and find the shipping notification email.
    Q: How do I return an item?
    A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]

    Q: How do I pay for my purchase?
    A: MY store accepts PayPal. 
    Q: When will the item be shipped out?
    A: This item will be shipped with 2 business day once payment completed.
    Q: Where is my tracking number?
    A: Please log on your account, click "my eBay"-->"my summary", or open your email box and find the shipping notification email.
    Q: How do I return an item?
    A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]

    We are dedicated to provide high quality products and satisfied customer service to our sincerely customers, so if there's any questions or problems with our products or service, feel free to contact us please.


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