Walker 350-35124 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Walker Oxygen Sensor for Mitsubishi Outlander

Walker Products 350-35124 is an OE replacement oxygen sensor engineered for specific upstream applications on Mitsubishi vehicles. It is built to deliver the diagnostic feedback the ECU expects, helping maintain proper fuel control and emissions performance on the covered Outlander and Montero applications.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for direct-fit replacement needs. Part number 350-35124 is application-specific for the listed upstream positions, including Bank 1 Sensor 1 coverage where noted.

Key Features

• OE replacement oxygen sensor for upstream applications
• Application-specific fitment for the listed Mitsubishi Outlander and Montero positions
• Supports ECU feedback for engine management and emissions monitoring
• Designed for direct replacement in confirmed vehicle positions
• Walker Products Aftermarket part number 350-35124

Detailed Description

Walker Products 350-35124 is an oxygen sensor for Mitsubishi Outlander and Mitsubishi Montero applications that require an upstream sensor. Coverage includes 2021-2022 Mitsubishi Outlander upstream, 2018-2022 Mitsubishi Outlander PHEV upstream, 2018-2020 Mitsubishi Outlander upstream with B1S1 notes, and 2014-2017 Mitsubishi Outlander upstream. It also covers 2016 Mitsubishi Montero upstream right and upstream left positions. If you are searching for a Mitsubishi Outlander upstream oxygen sensor or a 2018-2022 Mitsubishi Outlander PHEV upstream replacement, this part number matches the listed positions and notes.

Walker Products develops engine management sensors as OE-style replacements for global vehicle applications. Part number 350-35124 is built for the specified fitment position so the ECU receives the expected sensor input for fuel trim and emissions control. This part cross-references no additional part numbers provided in the source data.

What It Helps Address

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

Installation Notes and Tips

Confirm the vehicle year, model, and sensor position before ordering. For 2014-2017 Mitsubishi Outlander applications, verify the upstream location and B1S1 note where listed. For 2016 Mitsubishi Montero, confirm whether the vehicle uses the upstream right or upstream left position. Inspect the sensor, wiring harness, and connector for physical damage before installation, since damaged components can shorten sensor life and affect operation.

Quality Assurance

Walker Products is an automotive ISO 9001/TS 16949 certified company with a long history in engine management and fuel system components. Part number 350-35124 is manufactured as an OE replacement for the specified application and position.