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Heated Oxygen Sensor - GM (12704309)

Genuine OEM GM Parts & Accessories - 12704309

Heated Oxygen Sensor - GM (12704309)

Genuine OEM GM Parts & Accessories - 12704309

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Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 12704309

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12704309

  • Positions: Upper
  • Other Names:

    Oxygen Sensor

  • Description:
    ACDelco Heated Oxygen Sensor (Part Number: 12704309) is an upstream (pre-catalyst) heated oxygen (O2) sensor that monitors exhaust oxygen content to support air-fuel ratio control and emissions optimization.
    • Function: Measures O2 content in exhaust gases to enable fuel trim corrections and catalytic converter efficiency monitoring.
    • Application: Upstream sensor (Bank 1) for specified engine configurations; may require programming or special setup per GM Service Information.
    • Quality: ACDelco OE-class sensor engineered for accurate sensing and reliable heater operation.
    • Also known as: Oxygen Sensor
    World Parts Direct, a U.S. enterprise, offers excellent pricing, compatibility guarantee, expert support and OEM-backed warranty assistance.
  • Condition: New
  • MSRP: $77.44
  • You Save: $25.85 (33.4% off)
  • Sale Price: $51.59
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Most in-stock items ship within 1–3 business days. Special orders may take longer.

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Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 12704309

Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    12704309

  • Positions: Upper
  • Other Names:

    Oxygen Sensor

  • Description:
    ACDelco Heated Oxygen Sensor (Part Number: 12704309) is an upstream (pre-catalyst) heated oxygen (O2) sensor that monitors exhaust oxygen content to support air-fuel ratio control and emissions optimization.
    • Function: Measures O2 content in exhaust gases to enable fuel trim corrections and catalytic converter efficiency monitoring.
    • Application: Upstream sensor (Bank 1) for specified engine configurations; may require programming or special setup per GM Service Information.
    • Quality: ACDelco OE-class sensor engineered for accurate sensing and reliable heater operation.
    • Also known as: Oxygen Sensor
    World Parts Direct, a U.S. enterprise, offers excellent pricing, compatibility guarantee, expert support and OEM-backed warranty assistance.
  • Condition: New

Vehicle Fitment

Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

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OEM GM Parts and Accessories for sale

Built with GM’s engineering expertise, ACDelco and OEM GM parts are factory original equipment replacement parts for your Chevy, Buick, Cadillac, GMC, Saturn, Pontiac, Oldsmobile or Hummer. Every ACDelco and OEM GM part is rigidly held to federal safety and quality standards and is guaranteed by GM Replacement Parts Limited Warranty. You can trust GM Genuine Parts when ordering this Heated Oxygen Sensor for your 2020-2025 Cadillac CT4 vehicle. GM Parts & Accessories Limited Warranty.

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