Walker 350-34619 Oxygen Sensor

Walker 350-34619 Oxygen Sensor for Mitsubishi

Walker Products 350-34619 is a heated oxygen sensor built as an OE-style replacement for specific Mitsubishi applications. It is engineered for the correct fitment position and ECU feedback, helping maintain proper air-fuel control and emissions system performance.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for the listed Mitsubishi downstream, upstream, and center applications
• 4-wire configuration with a female radiused polygon connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 33.98 in.; overall length: 37.52 in.
• Walker Products Aftermarket engine management sensor line

Product Details

The Walker Products Aftermarket line focuses on engine management and oxygen/air-fuel sensors developed as OE replacement parts for a wide range of vehicles. Part number 350-34619 is built for specific Mitsubishi fitments, including Mitsubishi Outlander, Mitsubishi Outlander Sport, Mitsubishi RVR, Mitsubishi Eclipse Cross, Mitsubishi Lancer, Mitsubishi ASX, and Mitsubishi Montero applications where the listed position matches the vehicle configuration. This sensor is intended to provide the diagnostic feedback the ECU expects from the affected location, including downstream, upstream, and center positions shown in the fitment data.

Walker Products has supplied engine management components since 1946 and manufactures to ISO 9001 / TS 16949 standards. If an oxygen sensor fails, common symptoms can include poor engine operation, higher fuel use, increased exhaust emissions, and a malfunction indicator light. The sensor, wiring harness, and connector should also be inspected for damage when diagnosing the 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 oxygen sensor performance
• Incorrect air-fuel ratio feedback to the ECU
• Reduced fuel economy from a failing sensor
• Elevated exhaust emissions
• Poor drivability caused by inaccurate exhaust monitoring

Installation Notes and Tips

Confirm the exact position before ordering, since this part is listed for downstream, upstream, and center locations depending on the Mitsubishi model and emissions package. Verify connector shape, wire count, thread diameter, and harness length against the original sensor before installation. Inspect the connector and harness for heat damage, corrosion, or abrasion, and clear diagnostic trouble codes after replacement so the ECU can relearn properly.

Quality Assurance

Walker Products manufactures this oxygen sensor as an OE replacement application part and backs its engine management products with ISO 9001 / TS 16949 quality system standards.