Startseite » Upstream Downstream Oxygen O2 Sensor for Buick Envision, Cadillac CT4 CT5 CT6, XT4 XT5 XT6, Chevrolet Blazer, GMC Acadia

Upstream Downstream Oxygen O2 Sensor for Buick Envision, Cadillac CT4 CT5 CT6, XT4 XT5 XT6, Chevrolet Blazer, GMC Acadia

SKU: 1005011780438420-1PC 55488558
Color
€36,50
-38% €58,40 €36,50

Upgrade or replace your vehicle’s oxygen sensors with this Upstream Downstream Oxygen O2 Sensor kit, designed for Buick Envision, Cadillac CT4 CT5 CT6, XT4 XT5 XT6, Chevrolet Blazer, and GMC Acadia. The kit includes the upstream sensor (55489474) and the downstream sensor (55488558), with options to purchase a single upstream or downstream sensor if needed. These are heated O2 sensors (Type: Heating) and use a piezoelectric sensing element (Sensor Type: Piezoelectric) to deliver reliable oxygen readings across engine operating conditions.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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Benefits & Tips

  • Reliable upstream and downstream oxygen sensing helps maintain proper air-fuel balance and engine management for compatible GM vehicles listed in the product details.
  • Heated sensors heat up quickly for accurate readings during cold starts, supporting faster catalyst light-off and better emissions control.
  • Keep the part numbers (55489474 for upstream and 55488558 for downstream) on hand to ensure you order the correct components for your exact model and year.

Product specifications

  • Brand Name: IWOKPHD
  • Choice: yes
  • Electronic: No
  • High-concerned chemical: None
  • Hysteresis: For CADILLAC CT4 CT5 CT6 XT4 XT5 XT6
  • Linear: For GMC ACADIA 2020-2023
  • Measuring Range: For CHEVROLET BLAZER 2020-2026
  • OEM NO.: 55488558, 55489474
  • Origin: Mainland China
  • Resolution: For BUICK ENVISION 2021-2026
  • Sensitivity: 55489474, 55488558, 12728283
  • Sensor Type: Piezoelectric
  • Type: Heating

Warnings / Reminders

  • NOTE: Please check the picture and the part number carefully to make sure that you bought the right part for your car.
  • If you cannot determine which item fits your car, please send the Part Number or the original product photos to us to confirm before order.
  • The only way to be 100% sure that the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.

Package includes:

  • 1PC 55489474 Upstream + 1PC 55488558 Downstream
  • Or 1PC 55489474 Upstream
  • Or 1PC 55488558 Downstream