Walker 350-33024 Oxygen Sensor - Downstream or Upstream

Walker 350-33024 Oxygen Sensor for Nissan

Walker Products 350-33024 is a heated oxygen sensor built as a specific-fit OE replacement for select Nissan applications. It is engineered for the correct mounting position and ECU feedback on downstream and upstream locations, including California emissions and Japan-built Sentra coverage.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed Nissan applications
• Threaded mounting with 12.0 mm thread diameter
• 3-wire configuration with male radiused polygon connector
• Overall length: 10.55 in.; wiring harness length: 7.01 in.
• Wire gauge: 20
• Supports downstream and upstream fitment positions

Application Details

Walker Products Aftermarket focuses on OE-style engine management and oxygen/air-fuel sensors for exact application fitment. Part number 350-33024 is made for the specified vehicle, engine-management position, and diagnostic feedback requirements, helping maintain proper ECU monitoring on emissions-controlled Nissan models. This part number 350-33024 is listed for 1986-1996 Nissan 300ZX, Maxima, Pulsar NX, 200SX, 240SX, and Sentra applications, including B1S2 and California-ESV coverage where noted.

Fits 1995-1996 Nissan 200SX, downstream. Fits 1995-1996 Nissan 240SX, downstream. Fits 1996 Nissan Sentra, downstream. Fits 1995 Nissan Sentra, downstream. Fits 1987 Nissan Pulsar NX, upstream. Fits 1986 Nissan 300ZX, upstream. Fits 1986 Nissan Maxima, upstream.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel readings
• Higher exhaust emissions on emissions-controlled vehicles
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes

Confirm the sensor position before installation: downstream or upstream, and verify the connector shape, thread diameter, and harness length against the original part. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before replacement. For California-emissions and Japan-built Sentra applications, match the exact vehicle notes shown in the fitment data.

Quality Assurance

Walker Products states that its engine management sensors are developed as OE replacement parts and the company is ISO 9001/TS 16949 certified. Since 1946, Walker Products has supplied engine management and fuel system components for automotive applications.