Walker 350-34240 Oxygen Sensor

Walker 350-34240 Oxygen Sensor for Mitsubishi Applications

Walker Products 350-34240 is a heated oxygen sensor built as an OE-style replacement for specific Mitsubishi, Chrysler, and Dodge applications. It is engineered for the correct fitment position and ECU feedback, helping maintain accurate air-fuel monitoring in downstream and rear sensor locations.

Key Features

• Heated oxygen sensor with 4-wire construction
• Specific-fit design for the listed vehicle applications
• Threaded mounting with 18.0 mm thread diameter
• 32.4 in. wiring harness length and 20-gauge wire
• Radiused polygon male connector for proper electrical connection
• Overall length: 35.94 in.

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors developed for original equipment replacement needs. Part number 350-34240 is built for the specified downstream and rear positions, including Mitsubishi Outlander, Montero, L200, Eclipse, Endeavor, Galant, Diamante, 3000GT, Montero Sport, and select Chrysler Sebring and Dodge Stratus and Stealth applications. For vehicles such as the Mitsubishi Outlander and Mitsubishi Eclipse, correct sensor placement is important because the ECU relies on the sensor signal to monitor exhaust performance and emissions control.

This part cross-references Bosch 15717 and Denso 234-4209 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation from incorrect air-fuel correction
• Elevated exhaust emissions from a failing downstream sensor
• Fault codes stored in the ECU for sensor or related system issues

Installation Notes and Tips

Verify the exact position before installation, since this Walker 350-34240 sensor is application-specific and several listings require a downstream rear, downstream front, downstream right, or downstream left location. Inspect the sensor wiring harness and connector for damage before installation, and confirm the threaded mounting point is clean and undamaged. On Mitsubishi Montero, Mitsubishi Galant, and Mitsubishi Eclipse applications, follow the listed position notes carefully to ensure the ECU receives the correct signal.

Quality Assurance

Walker Products has produced engine management components since 1946 and operates as an ISO 9001/TS 16949 certified company. The 350-34240 is manufactured for specific OE replacement use and built to provide the diagnostic feedback required by the vehicle ECU.