Walker 350-34060 Oxygen Sensor

Walker 350-34060 Oxygen Sensor Overview

Walker Products 350-34060 is a heated oxygen sensor built as an OE-style replacement for specific BMW and Mercedes-Benz applications. It is engineered for the correct fitment position and ECU feedback on downstream and upstream locations, helping maintain accurate air-fuel monitoring in the vehicle’s emissions system.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for precise application matching. The 350-34060 follows that approach with a threaded, specific-fit design for targeted vehicle coverage, including BMW 740i, 740Li, 535i, X6, and Mercedes-Benz C-Class, CLK, and SLK55 AMG applications.

Key Features

• Heated oxygen sensor for emissions and engine management feedback
• Specific-fit design for application-matched installation
• 4-wire configuration with 22-gauge wiring
• 27.09 in. wiring harness length and 30.63 in. overall length
• 18.0 mm thread diameter with threaded mounting type
• Radiused polygon connector shape with male connector gender
• Fits downstream and upstream positions listed for select BMW and Mercedes-Benz models

Detailed Description

The Walker 350-34060 oxygen sensor is designed to replace the original sensor on vehicles that rely on precise exhaust-gas feedback for fuel control and emissions monitoring. As a heated sensor, it reaches operating temperature quickly and supports ECU diagnostics on the listed applications. This part number is used in downstream positions on BMW 740i, 740Li, 535i, 535i xDrive, 535xi, and X6 models, and in select Mercedes-Benz downstream left, downstream right, and upstream right locations. Walker Products 350-34060 is also a direct search match for buyers looking for a BMW downstream oxygen sensor or Mercedes-Benz OE replacement oxygen sensor by part number.

This part cross-references OE-style replacement listings for the same application.

What It Helps Address

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

Installation Notes and Tips

Verify the sensor position before ordering, since this part is listed for downstream and upstream right applications depending on the vehicle. Inspect the sensor wiring harness and connector for damage before installation, and confirm the threaded mounting location and connector style match the original unit. For BMW 740i and BMW X6 downstream oxygen sensor replacement, confirm the bank and cylinder-group notes in the fitment data. For Mercedes-Benz C240, C320, CLK320, CLK430, CLK55 AMG, and SLK55 AMG applications, confirm left, right, or upstream-right placement exactly as listed.

Quality Assurance

Walker Products has manufactured engine management components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34060 is built as an application-specific replacement sensor for the listed BMW and Mercedes-Benz fitments, including 2011-2012 BMW 740i and 740Li, 2008-2012 BMW X6, and 2001-2010 Mercedes-Benz applications.