Walker 350-34676 Oxygen Sensor - Downstream or Upstream

Walker 350-34676 Oxygen Sensor Overview

Walker 350-34676 is an OE-style oxygen sensor built for engine management systems that rely on accurate exhaust feedback. It is engineered for the specified application and sensor position, helping the ECU monitor air-fuel control and emissions performance.

Walker Products Aftermarket focuses on replacement sensors for a wide range of vehicles, including applications such as Honda Civic and Toyota Corolla. The 350-34676 follows that OE-replacement approach for drivers replacing a failed oxygen sensor on a vehicle with a stored fault code, poor fuel economy, or an illuminated MIL.

Key Features

• OE-replacement oxygen sensor for the specified vehicle application
• Provides diagnostic feedback required by the ECU
• Built for the correct fitment position on the vehicle
• Supports emissions and fuel-control system monitoring
• Walker Products Aftermarket engine management sensor line
• Part number: 350-34676

Detailed Description

The Walker Products 350-34676 oxygen sensor is designed for vehicles that depend on precise exhaust-gas monitoring to manage fuel delivery and emissions. When an oxygen sensor ages or fails, the engine may run poorly, consume more fuel, increase exhaust output, or trigger a malfunction indicator light. This replacement sensor is manufactured for the intended application so the ECU receives the feedback it expects from the affected circuit.

Walker Products has supplied engine management and fuel-system components since 1946, and its aftermarket sensor line is built around application-specific replacement needs. If you are servicing a Honda Civic or Toyota Corolla with an oxygen sensor fault, the 350-34676 provides a direct replacement path for the listed fitment.

What It Can Help Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough running or drivability issues tied to sensor failure
• Elevated exhaust emissions from inaccurate exhaust readings
• Stored ECU fault codes for the affected sensor circuit

Installation Notes

Before installation, inspect the sensor wiring harness and connector for heat damage, corrosion, or broken terminals. Confirm the replacement matches the vehicle’s required position and application, then clear fault codes and verify proper ECU feedback after installation. For fitment-based searches, this part is commonly referenced for Honda Civic and Toyota Corolla oxygen sensor replacement needs, and the 350-34676 should be matched to the exact vehicle listing before service.

Quality Assurance

Walker Products is an Automotive ISO9001/TS 16949 certified company, and its sensor catalog is built around application-specific replacement parts for modern engine management systems. Part number 350-34676 is part of the Walker Products Aftermarket line for OE-style sensor replacement.