Cadillac Buick Oxygen Sensor 12616203/0258010134 Precise Exhaust Monitoring

This oxygen sensor designed for 2010-2015 Cadillac SRX, ATS and Buick LaCrosse, Enclave, etc. with 2.0T/3.6L engines; precisely monitors exhaust oxygen content to ensure optimized air-fuel ratio and catalytic converter efficiency. OEM 12616203 (Bosch 0258010134) cross-checkable with original part. Replacement difficulty: medium; use a dedicated socket to avoid thread damage; clean exhaust connection and apply anti-seize prior to install. For B2B buyers, sensor uses high-temperature ceramic core, compatible with multiple ECU systems; bulk purchasing reduces inventory complexity.