This Bosch 17363 oxygen sensor is a front (upstream) sensor designed for select Audi models with 4.2L V8, 5.2L V10, and 6.0L W12 engines from 2005–2015. It measures exhaust oxygen content to fine-tune the air-fuel mixture, reducing emissions and improving fuel economy. Developed by Bosch, the pioneer of automotive oxygen sensors, it provides reliable OE-quality performance.
Key Features & Benefits
- Front/Upstream Position: Installed before the catalytic converter to monitor engine-out emissions for optimal fuel trim.
- Heated 4-Wire Design: Rapid warm-up for accurate readings and reduced cold-start emissions.
- OEM Cross-Reference 1K0998262AA: Direct replacement for Audi part number 1K0998262AA.
- Vehicle-Specific Fitment: Engineered for Audi R8, A6 Quattro, A8 Quattro, RS4, S8, and A8 W12 models.
- Durable Construction: Steel housing and robust connector ensure long service life in high-temperature exhaust systems.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Audi | R8 | 2008–2012 | 4.2V8 |
| Audi | R8 | 2014–2015 | 4.2V8 |
| Audi | A6 Quattro | 2005–2011 | 4.2V8 |
| Audi | A8 Quattro | 2007–2010 | 4.2V8 |
| Audi | RS4 | 2007–2008 | 4.2V8 |
| Audi | S8 | 2007 | 5.2V10 |
| Audi | A8 Quattro | 2007 | 6.0W12 |
Technical Specifications
| Part Number | 17363 |
| OEM Cross-Reference | 1K0998262AA |
| Brand | Bosch |
| Type | Oxygen Sensor |
| Position | Front / Upstream |
| Material | Steel |
| Weight | 0.491631 lb |
Installation Notes
Professional installation recommended to properly route wiring and prevent exhaust leaks.
About Bosch
Bosch invented the automotive oxygen sensor in the late 1960s and remains a top-tier supplier of OE and aftermarket sensors globally.
This part also goes by the following cross reference.
Cross Reference Part Number:
Fits These Vehicles
| Make | Model | Engine | Years |
|---|---|---|---|
| Audi | R8 | 4.2V8 | 2008–2012 |
| Audi | R8 | 4.2V8 | 2014–2015 |
| Audi | A6 Quattro | 4.2V8 | 2005–2011 |
| Audi | A8 Quattro | 4.2V8 | 2007–2010 |
| Audi | RS4 | 4.2V8 | 2007–2008 |
| Audi | S8 | 5.2V10 | 2007–2007 |
| Audi | A8 Quattro | 6.0W12 | 2007–2007 |