Oxygen Sensor for Chevrolet Astro, 4-Wire Heated Type, 2003-2005, Direct-Fit Replacement
Main Description
Chevrolet Astro Oxygen Sensor, 4-Wire Heating Type by WEIDA AUTO PARTS is a direct-fit replacement designed to restore precise exhaust monitoring on 2003-2005 Chevrolet Astro models. This heating-type oxygen sensor features four wires to power an integrated heater, allowing the sensor to reach its operating temperature quickly for accurate readings from startup. Accurate O2 data helps the engine control unit optimize the air-fuel mixture, delivering better fuel efficiency, reduced emissions, and smoother performance across cold starts, idling, and acceleration. Built to OE specifications, it carries OEM NO. 12570794 for easy identification and installation, and is manufactured in Mainland China to meet stringent quality standards.
Benefits & Tips
- Faster sensor warm-up reduces cold-start emissions and improves ECU response, leading to steadier idling and smoother throttle during the first minutes of operation.
- Direct-fit replacement that aligns with the OE part number 12570794 helps ensure compatibility and reliable performance without modification.
- Ideal for routine maintenance or fleet service—keep on hand as a ready replacement to maintain optimal engine efficiency and emissions compliance. If servicing multiple sensors, consider replacing related upstream sensors to restore balanced readings.
Product Specifications
- Brand: WEIDA AUTO PARTS
- Oxygen Sensor Type: Heating Type
- Sensor Type: Magnetic Induction
- Wires: 4-Wire
- OE/OEM No.: 12570794
- Compatible Vehicles: 2003-2005 Chevrolet Astro
- Origin: Mainland China
- Package Quantity: 1
Package includes:
- 1 x 4-Wire Heating Oxygen Sensor for 2003-2005 Chevrolet Astro (OE 12570794)
Warnings / Reminders
- Disconnect the vehicle battery and allow the engine to cool before installation.
- Handle the sensor carefully and avoid touching the sensing element on the tip.
- Use proper tools and follow vehicle service guidelines; do not overtighten the sensor—torque should conform to OEM specifications.
- Ensure the replacement part is the correct OE number (12570794) for compatibility with your vehicle.
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