Walker 350-33021 Oxygen Sensor - Downstream

Walker 350-33021 Oxygen Sensor for Infiniti G20

Walker Products 350-33021 is a heated oxygen sensor built as a specific-fit OE replacement for select 1994-1996 Infiniti G20 applications. It is engineered to provide the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor design for faster operating temperature
• Specific fit for the listed Infiniti G20 downstream application
• 3-wire configuration with 20-gauge wiring
• Female connector with radiused polygon shape
• Threaded mounting with 12.0 mm thread diameter
• Wiring harness length: 13.31 in.; overall length: 16.85 in.

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered as OE-style replacements for a wide range of vehicles. Part number 350-33021 is designed for the downstream position on 1994-1996 Infiniti G20 models, including downstream bank 1 sensor 2 on specific vehicle configurations. The heated sensor design helps the engine control module receive the exhaust signal it needs for accurate air-fuel adjustment, emissions control, and diagnostic monitoring. If your Infiniti G20 is showing a fault code related to the downstream oxygen sensor, this part number 350-33021 is built for the listed application.

This part cross-references no listed alternate part numbers for the same application.

What It May Help Resolve

• Check engine light or malfunction indicator light related to the downstream oxygen sensor
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation from inaccurate air-fuel correction
• Elevated exhaust emissions from a failing sensor signal
• Stored ECU fault codes tied to the Infiniti G20 downstream sensor circuit

Installation Notes

Verify the vehicle is a 1994-1996 Infiniti G20 with the downstream sensor location before ordering. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear before installation, since damaged wiring can shorten sensor life and affect readings. Confirm the threaded mounting and connector style match the original sensor on the vehicle.

Quality Assurance

Walker Products has manufactured engine management components since 1946 and operates with Automotive ISO9001/TS 16949 certification. The 350-33021 is produced for the specified application and fitment position to deliver the diagnostic feedback expected by the ECU.