Walker 350-34045 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of Walker 350-34045 Oxygen Sensor

The Walker 350-34045 oxygen sensor is designed specifically for select BMW models, including the 540i, 740i, 740iL, 750iL, 840Ci, 850Ci, M5, Z3, and Z8. 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 models listed
• 19.41-inch wiring harness length for proper installation
• 20 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 22.95 inches for compatibility

Walker Products Aftermarket Line Details

The Walker Products Aftermarket line offers replacement emission control components engineered to meet or exceed OEM specifications. This oxygen sensor from Walker Products Aftermarket is manufactured to provide consistent performance and durability, making it a suitable choice for maintaining the emission systems of BMW vehicles. The product line focuses on delivering reliable sensors that integrate seamlessly with the vehicle’s existing systems.

Product Features and Specifications

The Walker 350-34045 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emission control efficiency. The 19.41-inch wiring harness length and 20 gauge wire ensure proper electrical connectivity and signal integrity. Its radiused polygon female connector and threaded mounting type with an 18.0 mm thread diameter provide a secure and precise fit. This sensor is designed specifically for BMW models such as the 540i, 740i, 740iL, 750iL, 840Ci, 850Ci, M5, Z3, and Z8, ensuring compatibility and reliable operation.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty sensors
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel economy by optimizing engine management

Installation Notes and Tips

When installing the Walker 350-34045 oxygen sensor, ensure the vehicle is compatible with the specific fitment list. Use proper tools to avoid damaging the threaded mounting or connector. Verify the wiring harness length and connector type match the vehicle’s existing setup. It is recommended to replace the sensor when the engine is cool to prevent injury and to apply anti-seize compound on the threads if specified by the vehicle manufacturer.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for durability and performance. While specific warranty details for part number 350-34045 should be confirmed with the supplier, Walker typically offers limited warranties covering defects in materials and workmanship. This ensures confidence in the sensor’s reliability for emission control applications in BMW vehicles.