2002-2009 Audi Oxygen O2 Sensor - Post Cat Downstream 078906265T
OEM Part #: 078-906-265-T (078906265T)
Actual photo
The exact part you’ll receive — not a stock photo.
$22.49
Used
Donor2008 Audi S4 · 4.2L
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Genuine OEM Used
SKU: 652625
Donor Vehicle: 2008 Audi S4 · 4.2L
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$22.49
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Offering a used Audi Oxygen O2 Sensor – Post Cat Downstream (OEM 078906265T), a genuine part removed from a donor vehicle. Also known as a downstream O2 sensor, it also replaces 1K0998262. This part monitors exhaust oxygen content after the catalytic converter to check converter efficiency; a failing sensor can trigger a check engine light (codes P0420/P0430) or cause emissions test failure. Fits Audi models with 2.7L turbo V6 or 4.2L naturally aspirated V8 engines.
Specifications
| Fits Vehicle Model | A6, Allroad, S4 |
| Fits Vehicle Make | Audi |
| OEM Part No | 078-906-265-T (078906265T) |
| Compatible OEM Part No | 1K0-998-262 |
| Category | Sensors |
Compatible Vehicles
Fits 25 vehicle configurations across 1 make, 2002-2009.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 25 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | Audi | S4 | Convertible | 4.2L V8 | |
| 2006 | Audi | S4 | Wagon | 4.2L V8 | |
| 2009 | Audi | S4 | Convertible | 4.2L V8 | |
| 2004 | Audi | S4 | Wagon | 4.2L V8 | |
| 2004 | Audi | S4 | Sedan | 4.2L V8 | |
| 2004 | Audi | Allroad | Quattro Wagon | 4.2L V8 | |
| 2005 | Audi | S4 | Wagon | 4.2L V8 | |
| 2007 | Audi | S4 | Sedan | 4.2L V8 | |
| 2008 | Audi | S4 | Wagon | 4.2L V8 | |
| 2008 | Audi | S4 | Convertible | 4.2L V8 | |
| 2008 | Audi | S4 | Sedan | 4.2L V8 | |
| 2007 | Audi | S4 | Wagon | 4.2L V8 | |
| 2005 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2004 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2007 | Audi | S4 | Convertible | 4.2L V8 | |
| 2006 | Audi | S4 | Convertible | 4.2L V8 | |
| 2006 | Audi | S4 | Sedan | 4.2L V8 | |
| 2004 | Audi | S4 | Convertible | 4.2L V8 | |
| 2004 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2002 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2003 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2003 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2005 | Audi | S4 | Sedan | 4.2L V8 | |
| 2002 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2005 | Audi | Allroad | Quattro Wagon | 4.2L V8 |