欧宝英朗科鲁兹氧传感器 12655677 55569902 通用型，延长发动机寿命

When your Opel Astra/Opel Corsa shows idle instability, obvious fuel consumption rise, weak acceleration, or engine check light on, oxygen sensor aging or failure is likely; sensor monitors exhaust oxygen and provides data to ECU to optimize fueling. This sensor fits OEM numbers 12655677, 55569902, 12645561 and 12666673 for Opel Astra, Corsa and other general models. Clean threads and apply anti-seize; avoid cross-tightening; ensure wiring route avoids high heat.