Walker 250-54070 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products OE Oxygen Sensor for Suzuki Grand Vitara

Walker Products OE Part Number 250-54070 is a heated oxygen sensor built for specific OE-style fitment and ECU feedback. It is listed for 2007-2008 Suzuki Grand Vitara upstream left and upstream right positions, making it a direct-match option for the correct bank and side.

Walker Products OE focuses on application-specific engine management sensors for precise fitment and diagnostic signal response. For a Suzuki Grand Vitara oxygen sensor replacement, 250-54070 is engineered around the vehicle’s mounting position, connector style, and wiring layout.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit application for 2007-2008 Suzuki Grand Vitara
• Fits upstream left and upstream right sensor locations
• 4-wire design with 20-gauge wiring
• Radiused polygon male connector for OE-style connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length: 9.96 in.; wiring harness length: 6.42 in.

Detailed Description

Walker Products OE 250-54070 is an oxygen sensor replacement for the 2007-2008 Suzuki Grand Vitara, covering both upstream left and upstream right positions. As a heated sensor, it is designed to provide the ECU with the feedback needed for fuel control and emissions monitoring once the exhaust system reaches operating temperature. The specific-fit design helps match the original sensor location, connector configuration, and threaded mount for a cleaner replacement process.

Walker Products OE sensors are developed as OE-style replacements for a wide range of vehicles, with application-specific engineering that supports the diagnostic system requirements of the vehicle. This part number, 250-54070, is a practical choice when replacing a failed upstream oxygen sensor on a Suzuki Grand Vitara and restoring proper sensor input to the engine management system.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough engine operation from inaccurate exhaust oxygen readings
• Higher exhaust emissions from a failing sensor
• Stored ECU fault codes tied to the sensor circuit or related systems

Installation Notes and Tips

Verify the sensor position before installation: this part is listed for upstream left and upstream right locations on the 2007-2008 Suzuki Grand Vitara. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before replacement, since physical damage can shorten sensor life and affect signal quality. Confirm thread size and connector shape match the original unit before tightening the threaded mount.

Quality Assurance

Walker Products OE sensors are backed by the company’s long-running focus on engine management and emissions components. Walker Products is ISO 9001/TS 16949 certified and has supplied automotive sensors and fuel system components since 1946.