Walker 350-34998 Oxygen Sensor - Downstream or Upstream

Overview of Walker 350-34998 Oxygen Sensor

The Walker 350-34998 oxygen sensor is designed specifically for select Buick, Chevrolet, and GMC models. 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 Buick, Chevrolet, and GMC vehicles
• 7.87-inch wiring harness length with 20 gauge wire
• 4-wire configuration with radiused polygon male connector
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 12.79 inches for precise installation

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications of various Buick, Chevrolet, and GMC models including the Aveo, Cavalier, Cruze, Encore, Encore GX, Equinox, Malibu, Spark, Terrain, Trailblazer, Trax, and Volt. The heated sensor type allows for quicker activation and improved fuel efficiency by maintaining optimal air-fuel mixture readings. Featuring a 7.87-inch wiring harness with 20 gauge wires and a 4-wire setup, it provides reliable electrical connections through a radiused polygon male connector. The threaded mounting style with an 18.0 mm thread diameter ensures secure and proper fitment. The overall length of 12.79 inches supports straightforward installation in the designated exhaust system location.

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, offering a direct replacement solution tailored for specific vehicle applications. The product line emphasizes durability and precise fitment, which helps maintain vehicle emissions compliance and engine performance.

Common Applications and Issues Addressed

• Helps resolve engine performance problems related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level readings
• Prevents check engine light triggers caused by faulty sensors
• Improves fuel economy by enabling proper engine management
• Supports smooth engine idling and acceleration

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Walker 350-34998 sensor into the exhaust manifold or pipe. Ensure the connector matches the radiused polygon male type for proper electrical connection. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness length and routing to prevent strain or interference. It is recommended to check for any exhaust leaks after installation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards. While specific warranty details for part number 350-34998 are not provided here, Walker typically offers coverage against defects in materials and workmanship. This ensures reliable performance and durability for compatible Buick, Chevrolet, and GMC vehicles.