Walker 250-24605 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 250-24605 Oxygen Sensor for BMW Models

The Walker 250-24605 oxygen sensor is designed specifically for select BMW vehicles, including the 325i, 325is, 530i, 540i, 740i, 740iL, and M3 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine management system.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for BMW 325i, 325is, 530i, 540i, 740i, 740iL, and M3 models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure electrical connection
• Wiring harness length of 10.55 inches and overall length of 14.09 inches
• Wire gauge measurement of 20 for durability and signal integrity

Detailed Product Description and Attributes

This Walker Products OE oxygen sensor (part number 250-24605) features a heated sensor element that allows for faster warm-up times and improved emissions monitoring. The sensor includes a 4-wire configuration, which supports both the sensor signal and heater circuit, ensuring consistent performance under various operating conditions. The wiring harness length of 10.55 inches and overall length of 14.09 inches provide adequate reach for installation in the specified BMW models. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with factory mounting points. The connector is a radiused polygon female type, designed to fit securely and prevent disconnection during vehicle operation.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment specifications. This oxygen sensor is engineered to provide precise sensor readings and durability consistent with factory standards, making it suitable for maintaining the emissions system integrity in BMW vehicles. The OE line emphasizes fitment accuracy and reliable performance, which is critical for emission compliance and engine efficiency.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in BMW 325i, 325is, 530i, 540i, 740i, 740iL, and M3 models
• Resolves engine performance issues related to incorrect air-fuel mixture readings
• Helps correct rough idling and poor fuel economy caused by sensor malfunction
• Addresses check engine light triggers related to oxygen sensor faults
• Supports emissions system compliance by providing accurate exhaust gas data

Installation Notes and Tips

When installing the Walker 250-24605 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly torque the sensor to manufacturer specifications to prevent leaks. Inspect wiring for damage and secure the harness to prevent strain or disconnection.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. This ensures the 250-24605 oxygen sensor provides reliable service and supports emissions compliance for the specified BMW models.