Walker 350-34668 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker 350-34668 Oxygen Sensor Overview

Walker 350-34668 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for downstream applications. It is built for vehicles that need accurate exhaust feedback to the ECU, helping maintain proper fuel control and emissions monitoring.

Compatible With 2001-2005 Suzuki Grand Vitara downstream right, 2001-2005 Suzuki Grand Vitara downstream left, 2001-2004 Chevrolet Tracker downstream, and 2004 Suzuki Vitara downstream right or downstream left.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• Specific-fit design for the listed downstream positions
• 4-wire configuration with a female connector
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 21.18 in.; overall length: 24.72 in.
• Walker Products Aftermarket part number 350-34668

Product Details

Walker Products Engine Management and Oxygen/Air-Fuel sensors are developed as replacement parts for original equipment applications. This sensor is designed to provide the diagnostic feedback required by the ECU in the specified downstream location. The Walker Products Aftermarket line focuses on application-specific engine management components, and 350-34668 follows that approach with the correct connector style, wire count, and mounting configuration for the listed vehicles.

This part cross-references no listed interchange numbers in the provided data. Search terms such as downstream oxygen sensor for 2001-2005 Suzuki Grand Vitara, downstream oxygen sensor for 2001-2004 Chevrolet Tracker, and Walker 350-34668 oxygen sensor can help narrow the correct application.

Common Issues This Sensor May 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
• Higher exhaust emissions from a failing downstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Verify the vehicle position before installation: downstream right, downstream left, or downstream as listed for the application. Inspect the sensor wiring harness and connector for damage before replacement, since physical wear can shorten sensor life. Confirm thread size, connector shape, and wire length against the original part before installation.

Quality Assurance

Walker Products has produced engine management and fuel system components since 1946 and operates under Automotive ISO9001/TS 16949 certification. The 350-34668 oxygen sensor is manufactured for specific vehicle applications to support the ECU feedback expected in the listed fitments.