2704G3 | GENUINE PARTS Downstream Heated Oxygen Sensor #12643708

Ensure your exhaust system stays in check with this genuine-OEM downstream heated oxygen sensor. Engineered to GM’s original specifications, it reacts quickly and reliably to changes in exhaust oxygen levels—helping your engine control module fine-tune air/fuel ratios for better performance, efficiency, and emissions compliance. The built-in heater speeds up sensor response during cold starts, and the precise fit guarantees seamless installation in supported GM vehicles. Swap in this factory-grade sensor and drive with confidence knowing you’ve restored your engine’s clean-air feedback system.

RETAIL: $33.00