Walker 350-34258 Oxygen Sensor - Downstream, Downstream Right or Upstream

Overview of Walker Oxygen Sensor 350-34258

The Walker 350-34258 oxygen sensor is designed specifically for select Pontiac and Toyota models, including the Corolla, Matrix, Tacoma, and Vibe. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Heated sensor type for faster response times
• Specific fit for Pontiac and Toyota models
• 16.46-inch wiring harness length for proper installation
• 22 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 20.0 inches for compatibility with OEM specifications

Detailed Product Description

This Walker oxygen sensor (part number 350-34258) is engineered to meet the exact specifications required by your vehicle’s emission control system. Featuring a heated sensor element, it reduces warm-up time, allowing the engine control unit to adjust fuel delivery more quickly and efficiently. The sensor’s 16.46-inch wiring harness and 22 gauge wires with four conductors ensure stable electrical connections and accurate data transmission. The radiused polygon male connector and threaded mounting type with an 18.0 mm diameter provide a secure and precise fit, minimizing installation issues and ensuring durability.

Walker Products Aftermarket offers a comprehensive line of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific parts that maintain emission compliance and engine efficiency. The 350-34258 oxygen sensor is part of this line, tailored for specific Pontiac and Toyota models to ensure proper fit and function.

Compatible Vehicles and Applications

• Compatible with Pontiac Vibe models requiring a specific oxygen sensor
• Designed for Toyota Corolla, Matrix, and Tacoma models needing a heated oxygen sensor replacement
• Ideal for emission control system repairs and maintenance on these vehicles
• Helps address issues related to fuel efficiency and emissions compliance

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor engine performance
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Reduced fuel economy from delayed sensor response
• Failed emissions tests related to sensor degradation

Installation Notes and Tips

When installing the Walker 350-34258 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the wiring harness or connector. The 18.0 mm threaded mounting requires proper torque to prevent leaks or sensor damage. Verify the radiused polygon male connector is fully seated to maintain a secure electrical connection. Follow vehicle-specific service manual instructions for sensor replacement procedures.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. This part undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.