Walker 350-34152 Oxygen Sensor - Upstream

Walker 350-34152 Oxygen Sensor Overview

Walker Products 350-34152 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Honda, Isuzu, and Geo applications. It is engineered for upstream placement and provides the ECU with the feedback needed to monitor air-fuel control and emissions performance.

For vehicles such as the Honda Passport, Isuzu Rodeo, and Isuzu Trooper, a failing upstream oxygen sensor can trigger poor drivability, higher fuel use, increased exhaust emissions, or a malfunction indicator light. Walker Products Aftermarket focuses on application-specific sensor fitment, including connector style, thread size, and harness length for the intended position.

Key Features

• Part number: 350-34152
• Heated oxygen sensor for upstream installation
• Specific fitment for the intended vehicle application
• 4-wire design with 20-gauge wiring
• Wiring harness length: 9.76 in.
• Overall length: 13.31 in.
• 18.0 mm thread diameter
• Female connector with radiused polygon shape
• Threaded mounting type

Product Details

Walker Products Aftermarket develops engine management and oxygen/air-fuel sensors as OE replacement parts for worldwide vehicle applications. The 350-34152 is designed to match the required sensor position and deliver the diagnostic feedback expected by the ECU. This makes it a practical choice for upstream oxygen sensor replacement on 1992-1995 Isuzu Trooper, 1993-1995 Isuzu Rodeo, 1994-1995 Honda Passport, and related Geo Storm, Isuzu Impulse, and Isuzu Stylus applications. The Walker 350-34152 part number is also referenced for fitment-based searches on these vehicles.

This part cross-references common oxygen sensor replacement searches for the same application, including Bosch 13275 and Denso 234-4011.

What It Helps Address

• Check engine light related to upstream oxygen sensor faults
• Rough engine operation caused by incorrect air-fuel feedback
• Increased fuel consumption from a degraded sensor signal
• Higher exhaust emissions from poor mixture control
• Fault codes stored in the ECU for sensor-related issues

Installation Notes

• Install in the upstream sensor position only where specified by the vehicle application.
• Verify connector shape, wire count, and thread diameter before installation.
• Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion.
• Confirm the mounting threads are clean and undamaged before threading the sensor into place.
• Use the vehicle service information to clear fault codes and confirm proper ECU feedback after installation.

Quality Assurance

Walker Products is an Automotive ISO9001/TS 16949 certified company with a long history in engine management and fuel system components. The 350-34152 is manufactured for specific application fitment and sensor position requirements, supporting consistent replacement on the listed Honda Passport, Isuzu Rodeo, and Isuzu Trooper applications.