Walker 250-24444 Oxygen Sensor - Downstream

Overview of Walker Products OE Oxygen Sensor 250-24444

The Walker Products OE Oxygen Sensor 250-24444 is designed specifically for BMW M3, Z3, and Z4 models. 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 design for reliable operation
• Specific fit for BMW M3, Z3, and Z4 models
• 32.99-inch wiring harness length with 20-gauge wire for durability
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Overall length of 36.54 inches for proper installation

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 250-24444) features a heated sensor type that allows for faster warm-up times and improved sensor responsiveness. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance under various operating conditions. The wiring harness length of 32.99 inches and 20-gauge wire gauge measurement provide sufficient reach and durability for installation in BMW M3, Z3, and Z4 vehicles. The sensor’s threaded mounting type with an 18.0 mm thread diameter allows for secure and precise placement in the exhaust system. Additionally, the radiused polygon male connector ensures a reliable electrical connection, minimizing the risk of signal loss or corrosion.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is engineered to match the exact fit and function required by BMW vehicles, providing a direct replacement solution that supports emissions compliance and engine efficiency. The OE line emphasizes durability and precision, making it suitable for professional repairs and maintenance.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for BMW M3, Z3, and Z4
• Helps resolve rough idling and engine hesitation caused by faulty sensors
• Reduces increased emissions and failed emissions tests
• Improves fuel economy by ensuring proper combustion control
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 250-24444 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 exhaust leaks. It is recommended to inspect wiring and connectors for damage during replacement.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure reliability and performance. This part number 250-24444 is backed by Walker’s quality assurance protocols, providing confidence in fitment and function for BMW M3, Z3, and Z4 applications.