Parts Information
| Part | Manufacturer | OEM Part # | Price | Notes |
| Oxygen Sensor |
| M3 |
| 750 mm | BMW | 11781405324 | 246.76 | |
| 840 mm | BMW | 11781743994 | 246.76 | |
| 935 mm | BMW | 11781406622 | 246.76 | |
| 1075 mm | BMW | 11781406621 | 246.76 | |
| 323 & 325i, Ci, It |
| Regulating Probe |
| Without SULEV |
| Cylinders 1 Thru 3 | BMW | 11787523434 | 274.18 | |
| Cylinders 4 Thru 6 | BMW | 11787523435 | 274.18 | |
| With SULEV |
| Cylinders 1 Thru 3 | BMW | 11787515826 | 274.18 | |
| Cylinders 4 Thru 6 | BMW | 11787515827 | 274.18 | |
| Monitoring Probe |
| Cylinders 1 Thru 3 | BMW | 11787514926 | 246.76 | |
| Cylinders 4 Thru 6 | BMW | 11787514927 | 246.76 | |
| 325xi |
| Regulating Probe | BMW | 11781742050 | 246.76 | |
| Monitoring Probe | BMW | 11781433940 | 246.76 | |
| 330i, Ci |
| Regulating Probe |
| Cylinders 1 Thru 3 | BMW | 11787523434 | 274.18 | |
| Cylinders 4 Thru 6 | BMW | 11787523435 | 274.18 | |
| Monitoring Probe |
| Cylinders 1 Thru 3 | BMW | 11787514926 | 246.76 | |
| Cylinders 4 Thru 6 | BMW | 11787514927 | 246.76 | |
| 330xi |
| Regulating Probe | BMW | 11781742050 | 246.76 | |
| Monitoring Probe | BMW | 11781433940 | 246.76 | |