Walker 350-341031 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of Walker 350-341031 Oxygen Sensor

The Walker 350-341031 oxygen sensor is designed specifically for select BMW and Toyota models, including the BMW 330i and Toyota GR Supra. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for BMW and Toyota vehicles
• 31.02 inches wiring harness length for flexible installation
• 20 gauge wire with 4-wire configuration
• Female connector for secure connection
• 18 mm thread diameter and 34.57 inches overall length

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications of various BMW and Toyota models, such as the BMW 118i, 330i xDrive, and Toyota GR Supra. The heated sensor type allows the unit to reach operating temperature quickly, improving emissions control and fuel efficiency. Featuring a 4-wire design with 20 gauge wiring, the sensor provides reliable signal transmission. The wiring harness length of 31.02 inches and an overall length of 34.57 inches offer installation flexibility, while the 18 mm thread diameter ensures compatibility with factory mounting points. The female connector design facilitates a secure and straightforward connection to the vehicle’s wiring system.

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, providing a direct replacement solution tailored for specific vehicle applications. The product line emphasizes durability and precise fitment, supporting proper engine management and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for BMW 330i and Toyota GR Supra models
• Resolves engine performance issues related to faulty oxygen sensors
• Helps correct rough idling and poor fuel economy
• Assists in reducing emissions and passing vehicle inspections
• Prevents check engine light triggers caused by sensor failure

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the thread. The 18 mm thread diameter matches factory specifications, so no modifications are necessary. Verify the female connector aligns with the vehicle’s wiring harness for a secure fit. Proper torque should be applied to prevent leaks and sensor damage.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-341031 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance.