Walker 250-25046 Oxygen Sensor

Overview of Walker Products OE Oxygen Sensor 250-25046

The Walker Products OE Oxygen Sensor 250-25046 is designed specifically for select BMW and Mercedes-Benz models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fit for BMW and Mercedes-Benz vehicles
• 38.9-inch wiring harness length with 5 wires of 20 gauge
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for reliable connection
• Overall length of 42.44 inches for proper fitment

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-25046) is engineered to meet the exact specifications of various BMW and Mercedes-Benz models, including popular vehicles such as the BMW 328i, 330xi, 525i, and Mercedes-Benz C63 AMG, GLC63 AMG, and G550. The sensor is heated to provide faster response times and improved fuel efficiency by accurately measuring oxygen levels in the exhaust gases. It features a 38.9-inch wiring harness with five 20-gauge wires, allowing for precise electrical signals to the engine control unit. The radiused polygon male connector ensures a secure and stable connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. This oxygen sensor is part of that line, providing a direct replacement solution that maintains the integrity of the vehicle’s emission control system. Using Walker Products OE parts helps ensure compatibility and reliability for BMW and Mercedes-Benz vehicles requiring specific sensor fitment.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for improved engine performance
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by maintaining accurate sensor data
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports smooth operation of the catalytic converter system

Installation Notes and Tips

Installation of the Walker Products OE oxygen sensor 250-25046 requires removal of the old sensor from the exhaust manifold or pipe. Ensure the threaded mounting hole is clean and free of debris before installing the new sensor. The 38.9-inch wiring harness length provides flexibility for routing, but care should be taken to avoid sharp bends or contact with hot engine components. Confirm the radiused polygon male connector is fully seated to prevent electrical issues. Use appropriate torque specifications to avoid damage to the sensor or exhaust system.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details may vary, these sensors typically come with a limited warranty covering defects in materials and workmanship. Using a genuine Walker Products OE sensor like part number 250-25046 helps maintain compliance with emissions regulations and supports long-term vehicle operation.