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Walker 350-35078 Oxygen Sensor
Overview of Walker Oxygen Sensor 350-35078
The Walker Products Aftermarket oxygen sensor 350-35078 is designed specifically for select BMW and Mercedes-Benz models. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fit and reliable performance in emission control systems.
- Heated oxygen sensor for accurate emissions monitoring
- Specific fit for BMW 1 Series, 3 Series, 5 Series, and Mercedes-Benz C-Class, SLK, X, and AMG models
- Threaded mounting with 18.0 mm thread diameter
- 57.6 inches wiring harness length with 5 wires of 20 gauge
- Radiused polygon male connector for secure electrical connection
- Overall length of 61.14 inches for proper installation depth
Detailed Product Description
This Walker Products Aftermarket oxygen sensor (part number 350-35078) is engineered to meet the specific requirements of various BMW and Mercedes-Benz vehicles, including the BMW 135i, 328i xDrive, 530xi, and Mercedes-Benz C63 AMG, SLK250, and X5 models. The sensor is heated to provide faster response times and improved fuel efficiency by accurately measuring oxygen levels in the exhaust gases. The 5-wire configuration with 20 gauge wiring ensures reliable signal transmission, while the radiused polygon male connector offers a secure and precise fit. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the designated exhaust port.
Applications and Problem Solving
- Restores proper air-fuel mixture readings for engine control units
- Helps reduce emissions by providing accurate oxygen level data
- Addresses issues such as rough idling and poor fuel economy
- Prevents check engine light triggers related to oxygen sensor faults
- Improves overall engine performance and emissions compliance
Installation Notes and Tips
Ensure the vehicle is compatible with this specific oxygen sensor by verifying the make and model fitment. The threaded mounting requires proper torque to avoid damage to the sensor or exhaust manifold. Handle the sensor carefully to avoid damaging the wiring harness or connector. The 57.6-inch wiring harness length provides flexibility for routing during installation. It is recommended to use anti-seize compound on the threads to facilitate future removal.
Quality Assurance and Warranty
Walker Products Aftermarket parts are manufactured to meet or exceed OEM specifications for durability and performance. This oxygen sensor undergoes rigorous testing to ensure reliable operation in emission control systems. While specific warranty details are not provided here, Walker typically offers coverage consistent with industry standards for aftermarket emission sensors.
| Brand | Walker |
|---|---|
| Part Number | 350-35078 |
| Position | Walker Products Aftermarket, Upstream, Upstream Front, Upstream Left, and Upstream Right |
| Wiring Harness Length | 57.6 |
| Wire Gauge Measurement | 20 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Connector Shape | Radiused polygon |
| Connector Gender | Male |
| Thread Diameter | 18.0 |
| Overall Length | 61.14 |
| Mounting Type | Threaded |
This part fits 208 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2016 | BMW | Z4 | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2016 | BMW | Z4 | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; B1S1; Walker Products Aftermarket | |
| 2016 | BMW | Z4 | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Upstream; Front; Walker Products Aftermarket | |
| 2016 | Mercedes-Benz | C63 AMG | 4.0L | V8 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket | |
| 2016 | Mercedes-Benz | C63 AMG | 4.0L | V8 | GAS | Upstream Left | Install upstream oxygen sensor on the left side.; Walker Products Aftermarket | |
| 2015 | BMW | Z4 | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2015 | BMW | Z4 | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; B1S1; Walker Products Aftermarket | |
| 2015 | BMW | Z4 | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Upstream; Front; Walker Products Aftermarket | |
| 2015 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2015 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2015 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2015 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2014 | BMW | Z4 | M Sport | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket |
| 2014 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2014 | BMW | Z4 | M Sport | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket |
| 2014 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2014 | BMW | Z4 | M Sport | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket |
| 2014 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2014 | Mercedes-Benz | C200 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2014 | Mercedes-Benz | C200 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2014 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2014 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2014 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2014 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2013 | BMW | 125i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2013 | BMW | 128i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2013 | BMW | 325i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2013 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2013 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2013 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2013 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2013 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2013 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2013 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2013 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2013 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2013 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2013 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2013 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2013 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2012 | BMW | 125i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2012 | BMW | 128i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2012 | BMW | 325i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2012 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2012 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2012 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2012 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2012 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2012 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2012 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2012 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2012 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | C180 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | C180 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | C200 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | C200 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | C250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket | |
| 2012 | Mercedes-Benz | SLK250 | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket | |
| 2011 | BMW | 1 Series M | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2011 | BMW | 1 Series M | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2011 | BMW | 1 Series M | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2011 | BMW | 125i | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2011 | BMW | 128i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket |
| 2011 | BMW | 325i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | 325i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2011 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2011 | BMW | 335is | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2011 | BMW | 528i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | 528i | 3.0L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket | |
| 2011 | BMW | X1 | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2011 | BMW | X3 | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2011 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2011 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2011 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2010 | BMW | 125i | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2010 | BMW | 128i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2010 | BMW | 128i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2010 | BMW | 130i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2010 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; B1S1; Walker Products Aftermarket | |
| 2010 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Upstream; Front; Walker Products Aftermarket | |
| 2010 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket |
| 2010 | BMW | 325i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream Left | Cyl 1-3; Cil 1-3; Upstream; Left; Walker Products Aftermarket | |
| 2010 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream Left | Cyl 1-3; Upstream; Left; Walker Products Aftermarket | |
| 2010 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2010 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2010 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2010 | BMW | 335i xDrive | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2010 | BMW | 335i xDrive | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2010 | BMW | 335i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2010 | BMW | 525i | 2.5L | L6 | Upstream Front | Cyl 1-3; OE Replacement | ||
| 2010 | BMW | 528i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | 528i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | X1 | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2010 | BMW | X3 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | X3 | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | X5 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2010 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2010 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2010 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2009 | BMW | 125i | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2009 | BMW | 128i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2009 | BMW | 128i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2009 | BMW | 130i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2009 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; B1S1; Walker Products Aftermarket | |
| 2009 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Upstream; Front; Walker Products Aftermarket | |
| 2009 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket |
| 2009 | BMW | 325i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream Left | Cyl 1-3; Cil 1-3; Upstream; Left; Walker Products Aftermarket | |
| 2009 | BMW | 328i xDrive | 3.0L | L6 | GAS | Upstream Left | Cyl 1-3; Upstream; Left; Walker Products Aftermarket | |
| 2009 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2009 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2009 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2009 | BMW | 335i xDrive | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2009 | BMW | 335i xDrive | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2009 | BMW | 335i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2009 | BMW | 525i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | 528i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | 528i xDrive | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | X3 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | X3 | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | X5 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2009 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2009 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2009 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2008 | BMW | 125i | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2008 | BMW | 128i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2008 | BMW | 128i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2008 | BMW | 130i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Cil 1-3; Upstream; Front; Walker Products Aftermarket | |
| 2008 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; Cil 1-3; Upstream; Front; B1S1; Walker Products Aftermarket | |
| 2008 | BMW | 135i | 3.0L | L6 | GAS | Upstream Front | Cyl 1-3; B1S1; Upstream; Front; Walker Products Aftermarket | |
| 2008 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket |
| 2008 | BMW | 325i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 328xi | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2008 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2008 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2008 | BMW | 335xi | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2008 | BMW | 335xi | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2008 | BMW | 335xi | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2008 | BMW | 525i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 528i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 528xi | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | X3 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | X3 | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | X5 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2008 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 130i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products Aftermarket |
| 2007 | BMW | 325i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 328i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 328xi | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 330i | 3.0L | L6 | Upstream Front | OE Replacement | ||
| 2007 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2007 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2007 | BMW | 335i | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2007 | BMW | 335xi | 3.0L | L6 | GAS | Upstream | Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2007 | BMW | 335xi | 3.0L | L6 | GAS | Upstream | Cylinders 1-3 upstream oxygen sensor position 1 in bank 1; Walker Products Aftermarket | |
| 2007 | BMW | 335xi | 3.0L | L6 | GAS | Upstream | Oxygen Sensor for Cylinders 1-3, Bank 1 Sensor 1, Upstream; Walker Products Aftermarket | |
| 2007 | BMW | 525i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 525i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 525xi | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | 530xi | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | X3 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | X3 | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | X5 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2007 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2006 | BMW | 130i | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2006 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Cyl 4-6; From 12/05; Cil 4-6; Del 12/05; Upstream; Cyl 4-6; Walker Products Aftermarket |
| 2006 | BMW | 323i | Base | 2.5L | L6 | GAS | Upstream | Cyl 4-6; From 12/05; Upstream; Cyl 4-6; Walker Products Aftermarket |
| 2006 | BMW | 325i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 325i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2006 | BMW | 325i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 325xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 325xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 330i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 330i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 330xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 330xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 525i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 525i | 2.5L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket | |
| 2006 | BMW | 525i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 525xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 525xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 530i | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 530xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Cil 1-3, De 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | 530xi | 3.0L | L6 | GAS | Upstream | Cyl 1-3, From 11/2005; Upstream; Cyl 1-3; Walker Products Aftermarket | |
| 2006 | BMW | Z4 | 3.0L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.