Walker 350-34249 Oxygen Sensor - Downstream or Upstream

Walker 350-34249 Oxygen Sensor Overview

Walker Products 350-34249 is a heated oxygen sensor built as a specific-fit OE replacement for select Chrysler, Dodge, and Plymouth applications. It is engineered to deliver the ECU feedback needed for accurate fuel control and emissions monitoring, including downstream and upstream positions where listed.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for application-specific fitment. The 350-34249 follows that approach with a threaded, 4-wire heated design and a radiused polygon female connector for direct replacement use on the vehicles shown below.

Key Features

• Part number: 350-34249
• Heated oxygen sensor for ECU feedback and emissions monitoring
• Specific fit application, not universal
• 4-wire design with 20-gauge wiring
• Female radiused polygon connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 33.39 in.
• Overall length: 36.93 in.

Detailed Description

Walker 350-34249 is designed for direct replacement on select vehicles that require a heated oxygen sensor in upstream or downstream locations. It supports the engine control module by reporting exhaust oxygen content so the ECU can adjust air-fuel strategy and monitor sensor performance. This part number is built for the specified application and fitment position, which is important for vehicles that store fault codes tied to the affected sensor circuit.

Compatible With 1995-1996 Chrysler Neon, downstream; 1995-1996 Dodge Neon, downstream; 1995-1996 Plymouth Neon, downstream; 1993 Dodge Dakota, upstream; 1991-1992 Dodge Monaco, upstream; and select 1988-1989 Dodge D100, D150, D250, Dakota, W100, and W150 upstream applications. For shoppers searching for a Walker oxygen sensor for Dodge Neon downstream replacement or a Walker 350-34249 upstream sensor for Dodge Dakota, this part number matches the listed vehicle and position requirements.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel control
• Higher exhaust emissions from a failing sensor circuit
• Fault codes stored in the ECU for the affected sensor or system

Installation Notes and Tips

Verify the vehicle year, make, model, and sensor position before ordering. Confirm the connector shape, wire count, thread diameter, and harness length against the original sensor. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since physical damage can shorten service life and affect signal quality.

Quality Assurance

Walker Products manufactures engine management sensors as OE-style replacement parts for specific applications and positions. The brand operates under Automotive ISO9001/TS 16949 certification and has supplied fuel system and sensor components since 1946.