凯迪拉克赛威3.0L 2009 后氧传感器 12634062 博世技术 即插即用

Cadillac CTS (3.0L) 2009 model (equipped with LF1 or LFW engines) can directly replace the downstream oxygen sensor and is compatible with 2010-2011 versions with the same displacement. This part monitors exhaust oxygen content and feeds the ECU to adjust the air-fuel ratio for efficient engine operation and lower emissions. OEM number 12634062 (Bosch technology) matches the OEM part exactly for cross-checking inventory. Replacement difficulty: medium; recommended to raise the vehicle and use a special socket to remove, avoid pulling wires; after installation, clear fault codes and perform idle learn for 10 minutes. KLP brand offers plug-and-play design with no welding or programming, suitable for repair shops stocking for common sensor failures across generic vehicles.