Walker 350-34347 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Walker 350-34347 Oxygen Sensor for Suzuki and Chevrolet

Walker Products 350-34347 is a specific-fit heated oxygen sensor engineered as an OE-style replacement for select Suzuki and Chevrolet applications. It is built to provide the ECU with the diagnostic feedback needed for accurate fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor with 4-wire design
• Specific fit for the listed upstream positions
• Threaded mounting type with 18.0 mm thread diameter
• Female connector with radiused polygon shape
• 11.34 in. wiring harness length and 14.88 in. overall length
• Walker Products Aftermarket engine management sensor line

Product Details

The Walker Products Aftermarket line focuses on engine management and oxygen/air-fuel sensors built for application-specific fitment and ECU feedback requirements. Part number 350-34347 is designed for upstream oxygen sensor locations on select Suzuki Grand Vitara, Suzuki Vitara, Suzuki Esteem, and Chevrolet Tracker models. This sensor supports the air-fuel monitoring function used by the engine control system to maintain proper operation and emissions performance.

Fits 2001-2005 Suzuki Grand Vitara, upstream right. Fits 2001-2005 Suzuki Grand Vitara, upstream left. Fits 2001-2004 Chevrolet Tracker, upstream right. Fits 2001-2004 Chevrolet Tracker, upstream left. Fits 2004 Suzuki Vitara, upstream right. Fits 2004 Suzuki Vitara, upstream left. Fits 1999-2002 Suzuki Esteem, upstream. Walker 350-34347 is a direct-fit oxygen sensor for these listed positions.

Common Symptoms This Sensor May Address

• Check engine light related to oxygen sensor performance
• Poor engine running or inconsistent fuel control
• Increased fuel consumption
• Higher exhaust emissions
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes

Verify the upstream sensor location, connector shape, wire count, and thread size before installation. Inspect the sensor wiring harness and connector for physical damage, since damaged wiring can shorten sensor life and affect signal quality. Confirm the vehicle application by year, make, model, and position before ordering.

Quality Assurance

Walker Products has produced engine management components since 1946 and manufactures sensors under Automotive ISO9001/TS 16949 quality systems. Part number 350-34347 is built for the specified application and fitment position to support the ECU’s required diagnostic feedback.