Walker 350-34242 Oxygen Sensor - Downstream

Walker 350-34242 Oxygen Sensor for Neon

Walker Products 350-34242 is a heated oxygen sensor built as a specific-fit OE replacement for select Chrysler, Dodge, and Plymouth Neon applications. It is designed for downstream use and provides the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor for downstream placement
• Specific-fit design for direct application matching
• 4-wire configuration with female connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 31.02
• Overall length: 34.57
• Radiused polygon connector shape
• Walker Products Aftermarket line for engine management and oxygen sensor replacement

Product Details

Walker Products 350-34242 is engineered for vehicles that require a downstream oxygen sensor to monitor exhaust efficiency after the catalytic converter. In 1997-2000 Plymouth Neon, 1997-2000 Dodge Neon, and 1997 Chrysler Neon applications, this sensor supports the ECU’s ability to read exhaust oxygen content and maintain correct air-fuel strategy. The Walker Products Aftermarket line focuses on OE-style replacement parts for engine management systems, and this sensor follows that approach with application-specific fitment and connector design.

This part cross-references no listed interchange numbers in the provided data. Walker 350-34242 is a direct-fit option for drivers searching for a downstream oxygen sensor for 2000 Dodge Neon, 2000 Chrysler Neon, or 1997-2000 Plymouth Neon applications.

Common Issues This Sensor May Address

• Illuminated malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel correction
• Higher exhaust emissions from a failing downstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes

Confirm downstream bank and sensor position before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear, since damaged wiring can shorten sensor life and affect signal quality. Verify thread size and connector style against the original part before replacement. Fits 1997 Chrysler Neon, downstream; Fits 1997-1999 Dodge Neon, downstream; Fits 2000 Dodge Neon, downstream; Fits 1997-2000 Plymouth Neon, downstream.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34242 is manufactured as an OE replacement sensor for the listed applications and built to deliver the diagnostic feedback expected by the vehicle ECU.