Walker 350-35142 Oxygen Sensor - Upstream

Overview of Walker 350-35142 Oxygen Sensor

The Walker 350-35142 oxygen sensor is designed specifically for select BMW models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a 20.2-inch wiring harness and a 5-wire configuration for accurate signal transmission.

• Heated oxygen sensor for faster warm-up and accurate readings
• Specific fit for BMW models including 118i, 330i, X3, and more
• 20.2-inch wiring harness length with 20 gauge wire for durability
• 5-wire design with female connector for secure installation
• 18mm thread diameter and 23.74-inch overall length for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-35142) is engineered to meet the exact specifications of various BMW vehicles such as the 118i, 120i, 230i xDrive, 330i GT xDrive, 530e xDrive, and X4. The heated sensor type allows for quicker activation, improving fuel efficiency and reducing emissions shortly after engine start. The 5-wire configuration supports both sensor heating and signal output, while the 20 gauge wiring ensures reliable electrical conductivity. With a wiring harness length of 20.2 inches and an overall length of 23.74 inches, this sensor fits precisely in the designated mounting location. The female connector and 18mm thread diameter facilitate straightforward installation without modifications.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution for BMW vehicles requiring specific sensor types and wiring configurations. The product line emphasizes compatibility and durability, supporting proper engine management and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for engine control units
• Helps resolve rough idling and poor fuel economy caused by faulty sensors
• Reduces increased emissions due to sensor failure
• Prevents check engine light triggers related to oxygen sensor faults
• Supports smooth engine performance and efficient combustion

Installation Notes and Tips

Ensure the vehicle is cool before sensor replacement to avoid burns. Disconnect the battery to prevent electrical shorts. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the 18mm thread diameter matches the mounting port. Connect the female connector securely to the vehicle wiring harness. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for fit, form, and function. While specific warranty details may vary, these sensors typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.