Walker 350-34383 Oxygen Sensor - Upstream

Walker 350-34383 Oxygen Sensor Overview

Walker Products 350-34383 is a heated upstream oxygen sensor built as a specific-fit OE replacement for select Chrysler, Dodge, and Plymouth Neon applications. It is engineered to provide the ECU with the correct diagnostic feedback for the affected bank and sensor position.

For 2000-2002 Chrysler Neon, 2000-2002 Dodge Neon, and 2000-2001 Plymouth Neon upstream service, this sensor supports accurate air-fuel monitoring and emissions control. Walker Products Aftermarket focuses on application-specific engine management parts, and the 350-34383 follows that approach with the correct connector, thread size, and harness layout for the listed vehicles.

Key Features

• Part number: 350-34383
• Heated oxygen sensor for upstream placement
• Specific fit for listed Neon applications
• 4-wire design with female connector
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 15.28
• Overall length: 18.82
• Radiused polygon connector shape
• Wire gauge: 22

Detailed Description

This Walker Products oxygen sensor is designed for upstream monitoring on select Neon models, including 2000-2002 Chrysler Neon, 2000-2002 Dodge Neon, and 2000-2001 Plymouth Neon. It is a heated sensor with a specific-fit design, so the connector, harness, and threaded mounting style match the listed application rather than using a universal layout. Walker Products 350-34383 is intended to restore proper ECU feedback when the original upstream sensor is no longer responding correctly.

Walker Products Aftermarket has supplied engine management and oxygen/air-fuel sensors since 1946, with OE-style replacement parts developed for application-specific fitment and diagnostic performance. This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough engine operation from inaccurate sensor readings
• Higher exhaust emissions from a failing oxygen sensor
• Stored ECU fault codes tied to Bank 1 Sensor 1

Installation Notes

Confirm the vehicle is one of the listed upstream applications before ordering. Inspect the sensor wiring harness and connector for heat damage, corrosion, or broken terminals before installation, since damaged wiring can shorten sensor life and affect readings. Verify the threaded mounting location and connector style match the original part on the vehicle.

Quality Assurance

Walker Products is an Automotive ISO9001/TS 16949 certified company, and its engine management sensors are built for application-specific replacement use. The 350-34383 is manufactured to support the diagnostic feedback expected by the ECU on the listed Neon fitments.