Walker 350-34515 Oxygen Sensor - Downstream

Overview of Walker 350-34515 Oxygen Sensor

The Walker 350-34515 oxygen sensor is designed specifically for Chevrolet, Geo, and Pontiac vehicles, including models like the Sunrunner and Tracker. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for Chevrolet, Geo, and Pontiac Sunrunner and Tracker models
• Threaded mounting type with 18.0 mm thread diameter
• Four-wire design with 20 gauge wire for reliable signal transmission
• Radiused polygon female connector for secure electrical connection
• Wiring harness length of 21.38 inches and overall length of 24.92 inches

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket, part number 350-34515, is engineered to meet the exact specifications required by select Chevrolet, Geo, and Pontiac vehicles. The heated sensor element allows the unit to reach operating temperature quickly, improving emissions control and fuel efficiency. The four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The radiused polygon female connector provides a secure and precise fit, reducing the risk of electrical issues. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory standards for the Sunrunner and Tracker models.

Applications and Common Issues Addressed

• Helps resolve rough idling caused by incorrect air-fuel mixture readings
• Reduces engine hesitation and stalling related to faulty oxygen sensors
• Improves fuel economy by providing accurate emissions data
• Assists in passing emissions inspections by maintaining proper sensor function
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 350-34515 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Thread the sensor by hand initially to avoid cross-threading, then tighten to manufacturer torque specifications. Confirm the wiring harness length and connector orientation fit the vehicle’s layout to prevent strain or disconnection.

Quality Assurance and Warranty

Walker Products Aftermarket maintains strict quality control standards for their emission control components. The 350-34515 oxygen sensor is manufactured to meet or exceed OEM specifications for durability and performance. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. For warranty information, consult the product documentation or manufacturer directly.