Walker 350-35012 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 350-35012 Oxygen Sensor

The Walker 350-35012 oxygen sensor is designed specifically for select BMW and Mini models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

• Heated oxygen sensor with 5-wire configuration
• Specific fit for BMW and Mini models including 118i, 550i, M5, X5, Cooper, and more
• Threaded mounting with 18.0 mm thread diameter
• 16.26 inches wiring harness length with 20 gauge wire
• Radiused polygon female connector for reliable connection
• Overall length of 19.8 inches for optimal placement

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-35012) is engineered to meet the exact specifications of various BMW and Mini vehicles. The heated sensor type ensures faster warm-up times, improving fuel efficiency and reducing emissions. With a 5-wire design and 20 gauge wire, it supports accurate signal transmission to the engine control unit. The radiused polygon female connector provides a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the designated sensor port. The wiring harness length of 16.26 inches and overall length of 19.8 inches are optimized for the sensor’s position in the exhaust system.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, designed to provide consistent performance and durability for specific vehicle applications. By adhering to strict manufacturing standards, Walker ensures that the 350-35012 oxygen sensor integrates seamlessly with the vehicle’s emission system.

Applications and Common Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires and rough idling caused by faulty sensors
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate oxygen level readings
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded port. Verify the connector type matches the vehicle harness before installation. The 16.26-inch wiring harness length allows for flexible routing, but avoid sharp bends or pinching. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-35012 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing oxygen sensors on BMW and Mini vehicles.