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Chevrolet/Buick/GMC Oxygen Sensor 234-4673, Front and Rear Dual Use, Precisely Adjusts Air-Fuel Ratio, Improves Fuel Efficiency and Emission Performance.
Replaces OEM #
MOQ
1件
When your vehicle experiences idle instability, weak acceleration, abnormal fuel consumption increase, or check engine light on with misfire, it is likely the O2 sensor aging or failure—it cannot accurately monitor exhaust oxygen content, causing air–fuel ratio drift. Proper operation sees the sensor feedback fuel data to ECU to precisely adjust injection, ensuring efficient combustion and reduced emissions. Fits Chevrolet, Buick, GMC models with OEM numbers 12607145, 12617648, 12646200, 12639693, 12572707. Before installation confirm sensor location (front/rear universal) and use dedicated socket to avoid thread damage; apply anti-seize compound and tighten to 20-30 Nm to prevent leaks or loosening.
雪佛兰/别克/GMC 氧传感器 234-4673 前/后双用 空燃比精准调节