Walker 350-34243 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Chevrolet, Geo, Pontiac, and Suzuki Vehicles

The Walker 350-34243 oxygen sensor is designed specifically for select Chevrolet, Geo, Pontiac, and Suzuki models, including the Firefly, Metro, Swift, Tracker, and Vitara. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for Chevrolet, Geo, Pontiac, and Suzuki models
• 22.56-inch wiring harness length for flexible installation
• 20 gauge wire for durability and signal integrity
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 26.1 inches for proper fitment

Walker Products Aftermarket Line Overview

The Walker Products Aftermarket line offers a range of emission control components engineered to meet or exceed OEM specifications. The 350-34243 oxygen sensor is part of this line, providing reliable performance and compatibility with specific vehicle applications. This product line focuses on delivering precise sensor technology to maintain emission standards and engine efficiency.

Product Details and Specifications

This oxygen sensor features a heated sensor type with a 4-wire configuration, which helps the sensor reach operating temperature quickly for accurate oxygen level detection. The wiring harness length of 22.56 inches allows for convenient routing during installation. The 20 gauge wire ensures durability and consistent signal transmission. The sensor mounts via a threaded connection with an 18.0 mm diameter, designed to fit securely in the exhaust system. The radiused polygon female connector provides a reliable electrical connection, minimizing the risk of disconnection or corrosion.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for Chevrolet Firefly and Geo Metro
• Helps reduce emissions in Pontiac Swift and Suzuki Tracker models
• Prevents engine performance issues related to faulty oxygen sensors
• Supports compliance with emission regulations for Suzuki Vitara
• Eliminates check engine light triggers caused by sensor failure

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Use the correct tools to remove the old sensor and install the Walker 350-34243 sensor by threading it securely into place. Connect the radiused polygon female connector firmly to the vehicle’s wiring harness. Verify the wiring harness length and routing to avoid interference with moving parts or heat sources.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards. The 350-34243 part number undergoes rigorous testing to ensure durability and accurate performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.