2003-2006 BMW O2 / Oxygen Sensor 11787523434
OEM Part #: 11-78-7-523-434 (11787523434)
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$21.49
Used
Donor2006 BMW X3 · 3.0L
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Genuine OEM Used
SKU: 646690
Donor Vehicle: 2006 BMW X3 · 3.0L
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$21.49
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A used OEM BMW O2 oxygen sensor, part number 7523434, monitors exhaust oxygen to help the engine control unit adjust the air-fuel mixture. It fits 2.5L and 3.0L naturally aspirated inline-6 engines. A failing O2 sensor often triggers a check engine light and can lead to poor fuel economy or rough idling.
Specifications
| Fits Vehicle Model | 325Ci, 325i, 330Ci, 330i, 525i, 530i, X3 |
| Fits Vehicle Make | BMW |
| OEM Part No | 11-78-7-523-434 (11787523434) |
| Category | Exhaust |
Compatible Vehicles
Fits 33 vehicle configurations across 1 make, 2003-2006.
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 33 vehicle configurations — 26 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | BMW | 330Ci | Convertible | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | 330Ci | Coupe | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2006 | BMW | 330Ci | Coupe | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 330Ci | Coupe | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2003 | BMW | 330Ci | Coupe | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2003 | BMW | 330i | Sedan | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 330i | Sedan | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | 330i | Sedan | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 525i | Sedan | 2.5L l6 | |
| 2004 | BMW | 525i | Sedan | 2.5L l6 | |
| 2004 | BMW | 530i | Sedan | 3.0L l6 | |
| 2005 | BMW | 530i | Sedan | 3.0L l6 | |
| 2005 | BMW | X3 | SUV | 3.0L l6 | |
| 2004 | BMW | 330Ci | Convertible | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2006 | BMW | 330Ci | Convertible | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2006 | BMW | X3 | SUV | 3.0L l6 | |
| 2003 | BMW | 330Ci | Convertible | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2003 | BMW | 325Ci | Convertible | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 325Ci | Convertible | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | 325Ci | Convertible | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2006 | BMW | 325Ci | Convertible | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 325Ci | Coupe | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | 325Ci | Coupe | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2006 | BMW | 325Ci | Coupe | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | X3 | SUV | 3.0L l6 | |
| 2003 | BMW | 325Ci | Coupe | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 325i | Sedan | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2003 | BMW | 325i | Sedan | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2006 | BMW | 325i | Sedan | 3.0L l6 | For Vehicles with Production Date After 03/2003 |
| 2003 | BMW | 325i | Wagon | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2005 | BMW | 325i | Wagon | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | 325i | Wagon | 2.5L l6 | For Vehicles with Production Date After 03/2003 |
| 2004 | BMW | 325i | Sedan | 2.5L l6 | For Vehicles with Production Date After 03/2003 |