Walker 350-34217 Oxygen Sensor - Downstream

Overview of Walker 350-34217 Oxygen Sensor for BMW

The Walker 350-34217 oxygen sensor is designed specifically for select BMW models, including the 335i xDrive and X1. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for BMW 335i xDrive and X1 models
• 33.98-inch wiring harness length with 22-gauge wire for durability
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Overall length of 37.52 inches for proper installation

Detailed Product Description

This Walker oxygen sensor (part number 350-34217) is engineered to meet the exact specifications required by BMW 335i xDrive and X1 vehicles. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The sensor’s 4-wire configuration includes a heater circuit and signal wires, ensuring consistent performance under various driving conditions. The 33.98-inch wiring harness with 22-gauge wire offers flexibility during installation while maintaining electrical integrity. The radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter provide a secure and precise fit, reducing the risk of leaks or connection issues.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific parts that support emissions compliance and engine efficiency. The 350-34217 oxygen sensor is part of this line, ensuring compatibility and performance for BMW models requiring precise sensor specifications.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for BMW 335i xDrive and X1
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing correct emissions data
• Reduces exhaust emissions by maintaining proper combustion control
• Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

• Ensure vehicle compatibility with BMW 335i xDrive or X1 before installation
• Use proper tools to avoid damaging the 18.0 mm threaded mounting
• Check connector orientation; the radiused polygon male connector must align correctly
• Inspect wiring harness length (33.98 inches) for routing clearance
• Allow the sensor to reach operating temperature for accurate diagnostics

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-34217 sensor undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in BMW 335i xDrive and X1 vehicles.