Walker 350-34131 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Walker 350-34131 Oxygen Sensor for Suzuki

Walker Products 350-34131 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Suzuki applications. It is engineered for upstream placement and is designed to provide the ECU with the feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit for the listed Suzuki Grand Vitara and Sidekick applications
• 4-wire design with female connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 10.35
• Overall length: 13.9
• Connector shape: radiused polygon
• Wire gauge measurement: 20

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for OE replacement use. Part number 350-34131 is built for the correct application and position, helping maintain the diagnostic feedback the ECU expects from the upstream sensor. This matters on vehicles such as the Suzuki Grand Vitara and Suzuki Sidekick, where the upstream oxygen sensor plays a direct role in air-fuel control and emissions performance.

Fits 1999-2000 Suzuki Grand Vitara, upstream right. Fits 1999-2000 Suzuki Grand Vitara, upstream left. Fits 1996-1998 Suzuki Sidekick, upstream. This part cross-references no listed aftermarket interchange numbers in the provided data.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor engine performance caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate sensor readings
• Higher exhaust emissions from a failing oxygen sensor
• Fault codes stored in the ECU for sensor-related issues

Installation Notes and Tips

Verify the sensor position before installation: this part is for upstream use on the listed Suzuki applications. Inspect the sensor, wiring harness, and connector for physical damage before replacement, since damaged wiring can shorten service life and affect signal quality. Confirm thread size, connector shape, and harness length match the original unit before installation.

Quality Assurance

Walker Products has been producing engine management components since 1946 and operates as an ISO 9001/TS 16949 certified company. The 350-34131 oxygen sensor is manufactured for specific application fitment and ECU feedback requirements.