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HellaPart #: 7.02604.21.0
Hella 7.02604.21.0 Oxygen Sensor
⚙️ 80 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pierburg distributed by Hella, Rear, Downstream, Upstream, Rear Lower, and Front Lower
🚗Fitment: BMW and Land Rover, 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi, 525i, 528i, 530i, Range Rover, X3, X5, Z3, and Z4
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Not what you need? Click here for all Oxygen Sensor options
Hella Oxygen Sensor for BMW and Land Rover
Restore accurate exhaust feedback with this Hella oxygen sensor, part number 7.02604.21.0. It is a direct-fit emission control sensor for select BMW and Land Rover applications, including BMW X3, X5, 325xi, Z4, and Range Rover models.
Brand Line: Pierburg distributed by Hella identifies this sensor as part of a product line supplied through Pierburg distribution and backed by Hella catalog coverage for OE-style replacement needs.
Key Features
- Oxygen sensor for emission control system service
- Hella part number 7.02604.21.0
- Fits select upstream, downstream, rear, rear lower, and front lower positions
- OE-number referenced applications for accurate vehicle matching
- Coverage for BMW and Land Rover models from 1999-2006
Fitment Details
- Fits 2004-2006 BMW X3, rear lower, with OE No. 11787513963.
- Fits 2004-2006 BMW X3, front lower, with OE No. 11781433940.
- Fits 2001-2006 BMW X5, upstream, with OE No. 11781433940.
- Fits 2001-2005 BMW 325xi, downstream, with OE No. 11781433940.
- Fits 2003-2005 BMW Z4, rear lower, with OE No. 11787513963.
- Fits 2003-2005 BMW Z4, front lower, with OE No. 11781433940.
- Fits 2003-2005 Land Rover Range Rover, rear, with OE No. MHK000220.
- Fits 2001-2004 BMW 320i, downstream, with OE No. 11781433940.
- Fits 2001-2004 BMW 330xi, downstream, with OE No. 11781433940.
- Fits 2001-2003 BMW 325Ci, downstream, with OE No. 11781433940.
- Fits 2001-2003 BMW 325i, downstream, with OE No. 11781433940.
- Fits 2001-2003 BMW 330Ci, downstream, with OE No. 11781433940.
- Fits 2001-2003 BMW 330i, downstream, with OE No. 11781433940.
- Fits 2001-2003 BMW 525i, downstream, with OE No. 11781433940.
- Fits 2001-2003 BMW 530i, downstream, with OE No. 11781433940.
- Fits 1999-2002 BMW Z3, downstream, with OE No. 11781433940.
- Fits 2000 BMW 323Ci, downstream, with OE No. 11781433940.
- Fits 1999-2000 BMW 323i, downstream, with OE No. 11781433940.
- Fits 2000 BMW 328Ci, downstream, with OE No. 11781433940.
- Fits 1999-2000 BMW 328i, downstream, with OE No. 11781433940.
- Fits 2000 BMW 528i, downstream, with OE No. 11781433940.
- Fits 1999 BMW 528i, downstream, manifold with catalyst, with OE No. 11781433940.
What This Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio feedback
- Rough idle or drivability issues tied to exhaust sensor readings
- Failed emissions inspection caused by sensor faults
- Slow or inaccurate sensor response in the exhaust stream
Installation Notes and Tips
Verify the OE number and sensor position before ordering, since this part is listed for multiple BMW and Land Rover locations. Match the application carefully for upstream, downstream, rear, rear lower, or front lower placement, and confirm connector and harness routing against the original sensor before installation.
For BMW X3, BMW X5, BMW 325xi, BMW Z4, and Range Rover applications, use the vehicle’s OE reference and position details to confirm the correct replacement. This part number is 7.02604.21.0.
Quality Assurance
Hella catalog coverage and Pierburg distribution support OE-referenced replacement selection for the listed applications. This part cross-references OE numbers 11781433940 and 11787513963 for the same application where noted.
This part fits 80 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | BMW | X3 | Manual | 3.0L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella |
| 2006 | BMW | X3 | Manual | 3.0L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella |
| 2006 | BMW | X3 | 2.5L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2006 | BMW | X3 | 2.5L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2006 | BMW | X5 | 3.0L | L6 | Upstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2005 | BMW | 325xi | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2005 | BMW | X3 | Manual | 3.0L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella |
| 2005 | BMW | X3 | Manual | 3.0L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella |
| 2005 | BMW | X3 | 2.5L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2005 | BMW | X3 | 2.5L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2005 | BMW | X5 | 3.0L | L6 | Upstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2005 | BMW | Z4 | 3.0L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2005 | BMW | Z4 | 3.0L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2005 | BMW | Z4 | 2.5L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2005 | BMW | Z4 | 2.5L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2005 | Land Rover | Range Rover | 4.4L | V8 | Rear | with OE No. MHK000220; Pierburg distributed by Hella | |
| 2004 | BMW | 320i | 2.2L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | BMW | 325xi | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | BMW | 330xi | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | BMW | X3 | Manual | 3.0L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella |
| 2004 | BMW | X3 | Manual | 3.0L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella |
| 2004 | BMW | X3 | 2.5L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2004 | BMW | X3 | 2.5L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | BMW | X5 | 3.0L | L6 | Upstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | BMW | Z4 | 3.0L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2004 | BMW | Z4 | 3.0L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | BMW | Z4 | 2.5L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2004 | BMW | Z4 | 2.5L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2004 | Land Rover | Range Rover | 4.4L | V8 | Rear | with OE No. MHK000220; Pierburg distributed by Hella | |
| 2003 | BMW | 320i | 2.2L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 325Ci | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 325i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 325xi | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 330Ci | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 330i | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 330xi | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 525i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | 530i | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | X5 | 3.0L | L6 | Upstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | Z4 | 3.0L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2003 | BMW | Z4 | 3.0L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | BMW | Z4 | 2.5L | L6 | Rear Lower | with OE No. 11787513963; Pierburg distributed by Hella | |
| 2003 | BMW | Z4 | 2.5L | L6 | Front Lower | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2003 | Land Rover | Range Rover | 4.4L | V8 | Rear | with OE No. MHK000220; Pierburg distributed by Hella | |
| 2002 | BMW | 320i | 2.2L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 325Ci | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 325i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 325xi | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 330Ci | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 330i | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 330xi | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 525i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | 530i | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | X5 | 3.0L | L6 | Upstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | Z3 | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2002 | BMW | Z3 | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 320i | 2.2L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 325Ci | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 325i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 325xi | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 330Ci | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 330i | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 330xi | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 525i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | 530i | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | X5 | 3.0L | L6 | Upstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | Z3 | 3.0L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2001 | BMW | Z3 | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | 323Ci | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | 323i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | 328Ci | 2.8L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | 328i | 2.8L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | 528i | 2.8L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | Z3 | 2.8L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 2000 | BMW | Z3 | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 1999 | BMW | 323i | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 1999 | BMW | 328i | 2.8L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 1999 | BMW | 528i | 2.8L | L6 | Downstream | Manifold with Calalyst; with OE No. 11781433940; Pierburg distributed by Hella | |
| 1999 | BMW | Z3 | 2.8L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella | |
| 1999 | BMW | Z3 | 2.5L | L6 | Downstream | with OE No. 11781433940; Pierburg distributed by Hella |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.