2004-2007 Audi A8 Oxygen O2 Sensor - Post Cat Downstream Left 077906265AD
OEM Part #: 077-906-265-AD (077906265AD)
Actual photo
The exact part you’ll receive — not a stock photo.
$16.99
Side: Left
Used
Donor2004 Audi A8 · 4.2L
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Genuine OEM Used
SKU: 263804
Donor Vehicle: 2004 Audi A8 · 4.2L
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$16.99
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Used Audi A8 Quattro Oxygen O2 Sensor - Post Cat Downstream, OEM part number 077906265AD. This is a genuine used sensor for the left placement, designed for the 4.2L V8 gas engines (4163CC and 4172CC DOHC naturally aspirated). Also known as a downstream O2 sensor, it monitors exhaust gases after the catalytic converter to ensure proper emissions and fuel mixture. A failing sensor can trigger a check engine light, cause poor fuel economy, or lead to failed emissions tests.
Specifications
| Fits Vehicle Model | A8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 077-906-265-AD (077906265AD) |
| Side | Left |
| Category | Exhaust |
Compatible Vehicles
Fits 7 vehicle configurations across 1 make, 2004-2007.
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 7 vehicle configurations — 7 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2007 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2006 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2006 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2007 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2004 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2005 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |