Audi Oxygen Sensor – Upstream – Bosch 17225 GTI Dual-Mass Design: Reduces vibration and

Dual-Mass Design: Reduces vibration and noise for a smoother driving experience

Part Number WHT003858B Length 77mm Connector 2-pin

Previous Revisions 321919133

Steel Body: Corrosion-resistant construction

Audi Oxygen Sensor – Upstream – Bosch 17225 GTI Dual-Mass Design: Reduces vibration andThe Bosch 17225 upstream oxygen sensor is designed for Audi RS5 (4. 2L V8, 20132015) and A8 Quattro (4. 2L V8, 20112012). It measures exhaust oxygen content before the catalytic converter to enable precise fuel control, reducing emissions and optimizing engine performance. This OE quality sensor restores factory level efficiency. Key Features & Benefits Upstream Position: Mounted before the catalytic converter for accurate engine out air fuel ratio