Walker 350-33048 Oxygen Sensor - Upstream

Walker 350-33048 Upstream Oxygen Sensor

Walker Products 350-33048 is a heated, specific-fit oxygen sensor built for upstream placement on select Chrysler, Dodge, and Plymouth vehicles. It is engineered as an OE-style replacement that provides the ECU with the feedback needed for fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the correct application and mounting position
• Upstream sensor location for Bank 1 Sensor 1 and front sensor applications listed below
• 3-wire configuration with female connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 10.35 in.
• Overall length: 13.9 in.
• Walker Products Aftermarket line for engine management and oxygen/air-fuel sensor replacement

Product Details

Walker Products Aftermarket focuses on engine management components and oxygen/air-fuel sensors developed for direct replacement use. Part number 350-33048 is manufactured for the specified fitment position, helping restore accurate exhaust feedback to the ECU on vehicles such as the 1987-1988 Dodge Dakota, 1987-1988 Chrysler LeBaron, and 1987-1988 Plymouth Voyager. This part cross-references no listed interchange numbers in the provided data.

What It Helps Address

• Check engine or malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from inaccurate exhaust readings
• Higher exhaust emissions from a failing upstream sensor
• Fault codes stored in the ECU tied to the affected sensor circuit

Installation Notes

Verify the vehicle application, upstream position, and connector style before installation. Inspect the sensor wiring harness and connector for physical damage, since damaged wiring can shorten sensor life and affect operation. Confirm the 18.0 mm threaded mounting point and routing length match the original layout on the vehicle.

Compatible With 1987-1988 Chrysler LeBaron, upstream; 1988 Chrysler New Yorker, upstream; 1987-1988 Chrysler Town & Country, upstream; 1987-1988 Dodge 600, upstream; 1987-1988 Dodge Aries, upstream; 1988 Dodge B150, upstream; 1988 Dodge B250, upstream; 1988 Dodge B350, upstream; 1987-1988 Dodge Caravan, upstream; 1988 Dodge Caravan, upstream; 1988 Dodge D100, upstream; 1988 Dodge D150, upstream; 1988 Dodge D250, upstream; 1987-1988 Dodge Dakota, upstream; 1987-1988 Dodge Daytona, upstream; 1987-1988 Dodge Grand Caravan, upstream; 1987-1988 Dodge Lancer, upstream; 1988 Dodge Ramcharger, upstream; 1987-1988 Dodge Shadow, upstream; 1988 Dodge W100, upstream; 1988 Dodge W150, upstream; 1988 Dodge W250, upstream; 1987-1988 Plymouth Grand Voyager, upstream; 1987-1988 Plymouth Reliant, upstream; 1987-1988 Plymouth Sundance, upstream; 1987-1988 Plymouth Voyager, upstream.

Quality Assurance

Walker Products has supplied engine management and sensor components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-33048 is built to support the diagnostic feedback expected by the ECU in the listed applications.