Walker 350-31027 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 350-31027 Oxygen Sensor

The Walker 350-31027 oxygen sensor is designed for specific vehicle applications including Buick, Chevrolet, GMC, and Jeep models. This non-heated oxygen sensor features a threaded mounting type and a radiused polygon female connector, ensuring precise fit and reliable performance in emission control systems.

• Wiring harness length: 12.13 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non-heated oxygen sensor
• Specific fit for select Buick, Chevrolet, GMC, Jeep, and other models
• Connector shape: Radiused polygon with female gender
• Thread diameter: 18.0 mm
• Overall length: 15.67 inches
• Threaded mounting type for secure installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle makes and models. The product line emphasizes precise fitment and quality construction to meet or exceed OEM standards, making it suitable for replacement in a wide range of domestic and import vehicles.

Product Description and Features

The Walker 350-31027 oxygen sensor is engineered as a non-heated sensor with a single wire, designed to monitor exhaust oxygen levels accurately. Its 20-gauge wiring and 12.13-inch harness length provide compatibility with the vehicle’s existing wiring harness. The radiused polygon female connector ensures a secure and correct connection, while the 18.0 mm threaded mounting type allows for straightforward installation. This sensor is specifically designed for models such as the Chevrolet Silverado, Buick LeSabre, GMC Sierra, Jeep Cherokee, and other compatible vehicles, ensuring proper emission control system operation.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for engine control units
• Helps resolve rough idling and poor fuel economy
• Reduces emissions by ensuring proper air-fuel mixture
• Prevents check engine light related to oxygen sensor faults
• Improves overall engine performance and drivability

Installation Notes and Tips

• Ensure vehicle compatibility by verifying make, model, and year
• Use proper tools to avoid damaging the 18.0 mm threaded sensor
• Disconnect battery before installation to prevent electrical issues
• Check connector shape and gender for correct fit before installation
• Follow torque specifications to secure the sensor without over-tightening

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for emission control components. The 350-31027 part number undergoes rigorous quality checks to ensure durability and reliable performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, supporting long-term use in compatible Buick, Chevrolet, GMC, Jeep, and other vehicles.