Walker 250-241300 Oxygen Sensor - Downstream Left

Overview of Walker OE Base Sensor Oxygen Sensor

The Walker OE Base Sensor 250-241300 is a heated narrow-band oxygen sensor designed specifically for BMW X3 and X4 models. This sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.

• Heated oxygen sensor for faster response times
• Narrow-band sensor type for precise air-fuel ratio monitoring
• Specific fit for BMW X3 and X4 models
• Four-wire design with spade terminal type
• Oblong female connector with four male terminals
• Thread size M18 - 1.5 and 22mm wrench size for installation

Walker OE Base Sensor Product Line Details

The OE Base Sensor line by Walker focuses on providing direct-fit oxygen sensors that meet original equipment specifications. This ensures compatibility and reliable performance for emission control systems. The 250-241300 part number belongs to this line, offering a sensor engineered to match the exact requirements of BMW X3 and X4 vehicles.

Product Features and Specifications

This oxygen sensor features a heated element to reduce warm-up time, improving sensor response and engine efficiency. The narrow-band sensor type is designed to provide accurate feedback to the engine control unit (ECU) for precise fuel mixture adjustments. The four-wire configuration includes a spade terminal type with an oblong female connector housing four male terminals, ensuring secure electrical connections. The sensor threads into the exhaust system with an M18 - 1.5 thread size and requires a 22mm wrench for installation.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for BMW X3 and X4 engines
• Reduces emissions by providing accurate oxygen level readings
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers caused by sensor failure
• Improves fuel economy by enabling precise fuel management

Installation Notes and Tips

When installing the Walker OE Base Sensor 250-241300, ensure the vehicle is compatible with this specific fitment for BMW X3 and X4 models. Use a 22mm wrench to properly tighten the sensor into the exhaust system. Verify the four-wire spade terminal connections match the vehicle’s wiring harness to avoid electrical issues. It is recommended to handle the sensor carefully to prevent damage to the heated element and connector.

Quality Assurance and Warranty

Walker OE Base Sensors are manufactured to meet or exceed OEM standards for durability and performance. This oxygen sensor is engineered for reliable operation within the emission control system of BMW X3 and X4 vehicles. Warranty information is provided by Walker and should be confirmed at the time of purchase.