Walker 350-34345 Oxygen Sensor - Upstream

Overview of Walker 350-34345 Oxygen Sensor

The Walker 350-34345 oxygen sensor is designed specifically for select Pontiac and Toyota models, including the Corolla, Matrix, and Vibe. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Pontiac and Toyota vehicles
• 19.21-inch wiring harness length for precise 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 22.76 inches for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34345) is engineered to meet the exact specifications of your vehicle’s emission system. Featuring a heated sensor element, it provides quicker warm-up times compared to non-heated sensors, which helps reduce emissions during cold starts. The sensor includes a 19.21-inch wiring harness with 22-gauge wires and a radiused polygon male connector, ensuring a secure and reliable electrical connection. Its threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of compatible Pontiac and Toyota models such as the Corolla, Matrix, and Vibe.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, providing a direct replacement solution designed to maintain factory performance and emissions compliance. The product line emphasizes precise fitment and durability, making it suitable for specific vehicle applications like the Pontiac and Toyota models listed.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by providing correct air-fuel mixture data
• Prevents rough idling and engine hesitation caused by faulty sensors
• Supports proper catalytic converter function by monitoring exhaust gases

Installation Notes and Tips

When installing the Walker 350-34345 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the radiused polygon male connector aligns properly with the vehicle harness to ensure a secure connection. Follow vehicle-specific torque specifications to avoid over-tightening. This sensor is designed for direct replacement on Pontiac and Toyota Corolla, Matrix, and Vibe models.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports long-term vehicle operation.