Walker 250-24677 Oxygen Sensor - Downstream

Overview of Walker 250-24677 Oxygen Sensor for BMW Vehicles

The Walker 250-24677 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 oxygen sensor with 4-wire configuration
• Specific fit for BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3 models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure electrical connection
• Wiring harness length of 36.93 inches and overall length of 40.47 inches
• Wire gauge measurement of 20 for reliable signal transmission

Walker Products OE Line and Its Relevance

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures that the 250-24677 oxygen sensor integrates seamlessly with the vehicle’s existing systems, providing consistent performance and durability for BMW models.

Detailed Product Description and Specifications

The Walker 250-24677 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved emissions control under various operating conditions. Its 4-wire design includes two wires for the heating element and two for the sensor signal, enhancing accuracy and reliability. The sensor’s radiused polygon female connector ensures a secure and precise fit, reducing the risk of electrical issues. With a wiring harness length of 36.93 inches and an overall length of 40.47 inches, this sensor is engineered for proper installation and fitment in the specified BMW models. The threaded mounting type with an 18.0 mm diameter allows for straightforward replacement without modification.

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 such as rough idling or hesitation
• Resolves check engine light triggers related to oxygen sensor faults
• Supports fuel economy by optimizing engine management

Installation Notes and Tips

When installing the Walker 250-24677 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle’s wiring harness to ensure proper electrical connection. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Follow the vehicle manufacturer’s torque specifications to prevent sensor damage.

Quality Assurance and Warranty Information

Walker oxygen sensors, including the 250-24677, are manufactured to meet stringent quality standards for durability and performance. The Walker Products OE line is engineered to provide reliable operation under demanding conditions. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in BMW vehicles.