Walker 350-34068 Oxygen Sensor - Downstream Left or Downstream Right

Walker 350-34068 Oxygen Sensor for Mercedes-Benz and Dodge

Walker Products 350-34068 is a heated, threaded oxygen sensor built as a specific-fit OE replacement for select Mercedes-Benz and Dodge applications. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring.

The Walker Products Aftermarket line focuses on engine management and oxygen/air-fuel sensors made for exact application fitment and correct sensor location. For shoppers searching for a downstream oxygen sensor for Mercedes-Benz SLS AMG, Mercedes-Benz ML450, or Dodge Sprinter 2500 and Sprinter 3500, this part number is matched to the listed vehicle positions.

Key Features

• Part number: 350-34068
• Heated oxygen sensor for emissions and fuel-trim feedback
• Specific fit for the listed vehicle applications
• 4-wire design with 22-gauge wiring
• Female connector with radiused polygon shape
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 26.1
• Overall length: 29.65

Detailed Description

Walker Products 350-34068 is an oxygen sensor designed for downstream placement on select Mercedes-Benz and Dodge vehicles. It is listed for 2011-2015 Mercedes-Benz SLS AMG, 2010-2011 Mercedes-Benz ML450, 2007-2008 Dodge Sprinter 2500, and 2007-2008 Dodge Sprinter 3500 in downstream left and downstream right positions. If you are replacing a downstream oxygen sensor on a Mercedes-Benz SLS AMG or a Dodge Sprinter 3500, this part number provides the application-specific fitment needed for the correct ECU signal.

As part of the Walker Products Aftermarket engine management line, this sensor is built for the exact application and mounting position required by the vehicle. The heated design supports faster sensor operation after startup, while the threaded mount and female connector help match the original sensor interface on the listed vehicles. Part number 350-34068 is also a useful reference when searching for a downstream oxygen sensor for Mercedes-Benz ML450 or Sprinter applications.

What It Helps Address

• Check engine light related to downstream oxygen sensor faults
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation from incorrect air-fuel data
• Elevated exhaust emissions from a failing sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Confirm the vehicle position before ordering, since this part is listed for downstream left and downstream right applications only. Inspect the sensor wiring harness and connector for damage during replacement, and verify the threaded mounting location matches the vehicle’s exhaust bung. For best results, compare the original connector shape, wire count, and harness length to the existing sensor before installation.

Quality Assurance

Walker Products states that its engine management and oxygen/air-fuel sensors are developed as OE replacement parts for worldwide vehicle applications. The company is ISO 9001/TS 16949 certified and has supplied engine management and fuel system components since 1946.