Walker 350-34157 Oxygen Sensor - Downstream

Overview of Walker Oxygen Sensor 350-34157

The Walker 350-34157 oxygen sensor is designed specifically for Mini Cooper, Cooper Countryman, and Cooper Paceman models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Heated oxygen sensor with 4 wires for reliable operation
• Specific fit for Mini Cooper, Cooper Countryman, and Cooper Paceman
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Wiring harness length of 23.15 inches and overall length of 26.69 inches
• 20 gauge wire for durability and signal integrity

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-34157) features a heated sensor element that allows for faster warm-up times and improved sensor responsiveness. The sensor includes four wires, which support both the sensor signal and the heating element, ensuring consistent performance under various operating conditions. The wiring harness length of 23.15 inches and overall length of 26.69 inches provide sufficient reach for installation in the specified Mini models. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust system. The radiused polygon male connector is designed for a precise and reliable electrical connection, reducing the risk of signal loss or disconnection.

Walker Products Aftermarket Line

The Walker Products Aftermarket line offers a range of emission control components engineered to meet or exceed OEM specifications. This product line focuses on delivering reliable and durable sensors that maintain vehicle emissions compliance and engine efficiency. The 350-34157 oxygen sensor is part of this line, providing a direct replacement solution tailored for specific Mini models.

Applications and Common Issues Addressed

• Restores accurate air-fuel ratio readings for Mini Cooper, Cooper Countryman, and Cooper Paceman
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by ensuring proper sensor operation
• Prevents check engine light triggers caused by sensor failure
• Improves fuel economy by maintaining correct sensor feedback

Installation Notes and Tips

When installing the Walker 350-34157 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34157 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and compliance with emissions requirements for Mini Cooper, Cooper Countryman, and Cooper Paceman vehicles.