Walker 350-34349 Oxygen Sensor

Walker 350-34349 Oxygen Sensor Overview

Walker 350-34349 is a heated oxygen sensor built as an OE-style replacement for specific Mercedes-Benz and Chrysler applications. It is engineered for the correct fitment position and ECU feedback, helping restore accurate exhaust monitoring on vehicles such as the Mercedes-Benz S600, CL500, and Chrysler Crossfire.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensor coverage for late-model import and domestic vehicles. Part number 350-34349 follows the application-specific approach used across the line, with the proper connector style, wire count, and threaded mounting for the listed vehicles.

Key Features

• Heated oxygen sensor for precise exhaust feedback
• Specific-fit design for listed Mercedes-Benz and Chrysler applications
• 4-wire configuration with a radiused polygon male connector
• Threaded mounting with 18.0 mm thread diameter
• 16.06 in. wiring harness length and 19.61 in. overall length
• Built to support ECU diagnostic response on the correct sensor location

Detailed Description

The Walker Products 350-34349 oxygen sensor is designed for direct replacement in a wide range of Mercedes-Benz models, including CL600, CL65 AMG, S600, S65 AMG, SL600, E350, E550, and related applications, plus the Chrysler Crossfire. This sensor is intended for upstream and downstream positions where listed, including right, left, and single-sensor locations. If you are replacing a failing oxygen sensor on a Mercedes-Benz CL500 or S500, this part number provides the application-specific fit and connector layout needed for proper installation.

As an oxygen sensor, it helps the ECU monitor exhaust oxygen content so the engine management system can maintain correct fuel control and emissions feedback. Walker Products states that its engine management sensors are developed as OEM replacement parts and manufactured for the specific vehicle application and position.

Common Issues This Part Can Address

• Check engine light or malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by inaccurate exhaust feedback
• Increased fuel consumption from incorrect air-fuel control
• Higher exhaust emissions from a degraded sensor signal
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Fitment

• Fits 2001-2014 Mercedes-Benz CL600, upstream right.
• Fits 2001-2014 Mercedes-Benz CL600, upstream left.
• Fits 2001-2014 Mercedes-Benz CL600, downstream right.
• Fits 2001-2014 Mercedes-Benz CL600, downstream left.
• Fits 2001-2013 Mercedes-Benz S600, upstream right, upstream left, downstream right, and downstream left.
• Fits 2004-2009 Mercedes-Benz SL600, upstream right, upstream left, downstream right, and downstream left.
• Fits 2004-2008 Chrysler Crossfire, upstream right, upstream left, downstream right, and downstream left.
• Fits 2001-2006 Mercedes-Benz S500, upstream right, upstream left, downstream right, and downstream left.
• Fits 2001-2006 Mercedes-Benz CL500, upstream right, upstream left, downstream right, and downstream left.
• Fits 2003-2006 Mercedes-Benz E500, upstream right and upstream left.
• Fits 2003-2006 Mercedes-Benz SL500, upstream right and upstream left.

Before installation, inspect the sensor wiring harness and connector for damage, since physical wear can shorten sensor life and affect operation. Confirm the sensor position on the vehicle before ordering, especially for upstream versus downstream and left versus right applications. Part number 350-34349 is also listed for additional Mercedes-Benz coverage including SL55 AMG, SL65 AMG, G55 AMG, E320, ML500, ML350, C32 AMG, C55 AMG, CLS500, CLS55 AMG, and related models.

Quality Assurance

Walker Products is an Automotive ISO9001/TS 16949 certified company with a long history in engine management and fuel system components. The Walker Products Aftermarket line is built around application-specific replacement parts for accurate fitment and diagnostic feedback.