Walker 250-24035 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker 250-24035 Oxygen Sensor for BMW Models

The Walker 250-24035 oxygen sensor is designed specifically for select BMW vehicles, including the 750iL, 850Ci, and 850i. 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 configuration
• Specific fit for BMW 750iL, 850Ci, and 850i models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure wiring harness connection
• Wiring harness length of 17.44 inches and overall length of 20.98 inches
• Wire gauge measurement of 20 for reliable electrical conductivity

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-24035) is engineered with a heated sensor element to provide faster response times and improved accuracy in emissions monitoring. The 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring stable operation under various engine conditions. The sensor’s threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of compatible BMW models. The radiused polygon female connector is designed to match the factory wiring harness, reducing the risk of connection issues. With a wiring harness length of 17.44 inches and an overall length of 20.98 inches, this sensor fits precisely without excess slack or tension.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the standards set by BMW for their 750iL, 850Ci, and 850i models. Choosing a Walker Products OE sensor helps maintain the integrity of the vehicle’s emissions system and supports compliance with environmental regulations.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensor data
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Walker 250-24035 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the radiused polygon female connector matches the vehicle’s wiring harness before connecting. Tighten the sensor to the manufacturer’s torque specifications to prevent exhaust leaks. It is recommended to inspect the wiring harness for damage or corrosion during installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain the emissions system’s integrity and supports long-term vehicle operation.