Buick Regal Heated Oxygen Sensor, 4-Wire O2 Sensor
Upgrade your Buick Regal's exhaust sensing with a reliable 4-wire heated oxygen sensor from WEIDA AUTO PARTS. This O2 sensor is designed to match factory specifications for the Buick Regal and is compatible with a broad range of GM vehicles, including Cadillac, Chevrolet, Corvette, and Malibu. The built-in heating element enables faster warm-up, delivering stable oxygen readings sooner and helping the engine reach optimal air-fuel balance quickly. With OEM No.: 12627139, this sensor is a precise fit that supports dependable performance and straightforward installation. Originating from Mainland China, it’s engineered to withstand the demanding conditions of the exhaust stream while providing consistent, long-lasting sensor signals to your vehicle’s ECU.
Benefits & Tips
- Faster heater activation means quicker stabilization of the air-fuel mixture, which can improve cold-start performance and reduce initial emissions.
- Accurate oxygen readings help the engine control unit optimize fuel use, potentially improving fuel economy and reducing tailpipe emissions.
- OEM-aligned measurements and 4-wire heating support reliable replacements that maintain your vehicle’s diagnostic accuracy.
Product specifications
- Brand: WEIDA AUTO PARTS
- Type: 4-Wire Heated Oxygen Sensor (O2)
- Sensor Type: Piezoelectric
- Measuring Range: For Buick Regal, Cadillac, Chevrolet, Corvette, Malibu
- OEM No.: 12627139
- Origin: Mainland China
- Hysteresis: 12627139
- Repeatability: 234-4763
- Resolution: Oxygen Sensor
- Sensitivity: WEI DA
- Heating: Yes (4-wire configuration)
Package includes:
- 1 x Buick Regal Heated Oxygen Sensor (4-Wire O2 Sensor)
Warnings/Reminders
- Professional installation is recommended to ensure correct sensor seating and electrical connections.
- Always disconnect the battery and let the exhaust system cool before removing or installing the sensor.
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