

⚡ Drive smarter, cleaner, and greener with GM’s genuine oxygen sensor!
The GM Genuine Parts AFS123 Heated Oxygen Sensor is a factory-spec replacement sensor designed to precisely measure oxygen levels in exhaust gases. This heated sensor enables faster response times, helping your engine management system maintain the ideal air/fuel ratio of 14.7:1 for optimized performance, reduced emissions, and improved fuel economy. Manufactured by ACDelco to meet GM’s exacting standards, it guarantees reliable fit, form, and function for your GM vehicle.





| Manufacturer | ACDelco |
| Brand | GM GENUINE PARTS |
| Model | Oxygen Sensor |
| Product Dimensions | 19.3 x 5.08 x 5.84 cm; 117.93 g |
| Item model number | AFS123 |
| Exterior | Machined |
| Manufacturer Part Number | 19178924 |
| OEM Part Number | 19178924 |
| Item Weight | 118 g |
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