Walker 350-34408 Oxygen Sensor

Walker 350-34408 Oxygen Sensor for Mitsubishi

Walker Products 350-34408 is a heated oxygen sensor engineered as an OE-style replacement for specific Mitsubishi, Chrysler, and Dodge applications. It is built for the correct fitment position and ECU feedback required by the vehicle, making it a direct choice for diagnosing and replacing a failed upstream or downstream sensor.

For Mitsubishi Lancer, Eclipse, Galant, Mirage, Endeavor, Montero Sport, and Diamante applications, this sensor supports accurate exhaust monitoring across the listed California and non-California emissions configurations. The Walker Products Aftermarket line focuses on application-specific engine management parts, and this sensor follows that approach with the proper connector, thread size, and harness layout for the listed vehicles.

Key Features

• Heated oxygen sensor for precise exhaust feedback
• Specific-fit design for listed Mitsubishi, Chrysler, and Dodge applications
• 4-wire configuration with 20-gauge wiring
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon connector shape with male connector gender
• Wiring harness length: 25.12 in.
• Overall length: 28.66 in.
• Walker Products Aftermarket part number 350-34408

Detailed Description

Walker Products 350-34408 is an emission control oxygen sensor designed to replace the original sensor on specific vehicles where the ECU depends on accurate air-fuel feedback. A failing oxygen sensor can trigger a malfunction indicator light, increase fuel consumption, raise exhaust emissions, or cause poor engine performance. This part is built for the correct application and position, including upstream, upstream rear, upstream right, upstream front, and downstream locations where listed.

This part cross-references Denso 234-9005 for the same application. It is a direct-fit oxygen sensor for 2008-2010 Mitsubishi Lancer upstream applications, 2001-2005 Mitsubishi Eclipse upstream applications, and 2001-2004 Dodge Stratus upstream applications, along with additional listed Mitsubishi and Chrysler fitments.

What It Helps Address

• Check engine light related to oxygen sensor faults
• Rough running caused by incorrect exhaust oxygen readings
• Higher fuel consumption from poor air-fuel control
• Elevated exhaust emissions on affected vehicles
• Fault codes stored in the ECU for sensor-related issues

Installation Notes and Tips

Verify the vehicle’s emissions configuration before ordering, especially for Mitsubishi Lancer and Eclipse applications where California and non-California fitments differ. Confirm the sensor position, bank, and sensor number against the vehicle service information: for example, Fits 2008-2010 Mitsubishi Lancer, upstream Bank 1 Sensor 1 on the listed non-California applications, and Fits 2001-2005 Mitsubishi Eclipse, upstream Bank 1 Sensor 1 on the listed applications. Inspect the sensor, wiring harness, and connector for physical damage before installation, since damaged wiring can shorten sensor life and affect ECU feedback.

Quality Assurance

Walker Products has produced engine management and oxygen/air-fuel sensors as OE-style replacements for many vehicles worldwide since 1946. The company is ISO 9001/TS 16949 certified, and this part is manufactured for the specified application and fitment position to support the vehicle’s diagnostic system requirements.