Walker 350-34648 Oxygen Sensor - Downstream

Overview of Walker 350-34648 Oxygen Sensor

The Walker 350-34648 oxygen sensor is designed specifically for select BMW models, including the 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3. 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 sensor type for faster response times
• Specific fit for BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3 models
• 36.93-inch wiring harness length with 4 wires of 20 gauge
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 40.47 inches for proper installation

Detailed Product Description

This Walker Products Aftermarket oxygen sensor, part number 350-34648, is engineered to meet the exact specifications required by BMW vehicles. The heated sensor design allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. The 4-wire configuration with 20 gauge wiring ensures reliable signal transmission and durability. The radiused polygon female connector provides a secure and precise fit, reducing the risk of connection issues. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with OEM standards for a proper seal and sensor placement.

Compatible BMW Models and Applications

This oxygen sensor is compatible with a range of BMW models, including the 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3. It is designed for specific fitment, ensuring proper function and integration with the vehicle’s emission control system. Using the correct sensor like the Walker 350-34648 helps maintain engine performance and compliance with emission regulations.

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance problems such as rough idling or hesitation
• Failed emissions tests related to sensor failure

Installation Notes and Tips

When installing the Walker 350-34648 oxygen sensor, ensure the vehicle is cool to avoid burns. Use proper tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector shape and gender match the vehicle’s harness for a secure connection. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. It is recommended to inspect the wiring and connector for any damage before installation.

Quality Assurance and Warranty

Walker Products Aftermarket parts are manufactured to meet or exceed OEM standards. The 350-34648 oxygen sensor undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s longevity and function.