Walker 250-24380 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker 250-24380 Oxygen Sensor

The Walker 250-24380 oxygen sensor is designed specifically for select BMW models, including the 530i, 540i, 740i, 740iL, and 840Ci. This heated oxygen sensor provides precise emissions control by accurately monitoring exhaust gases to optimize engine performance and fuel efficiency.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for BMW 530i, 540i, 740i, 740iL, and 840Ci models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Wiring harness length of 11.73 inches and overall length of 15.28 inches
• Wire gauge measurement of 20 for durability and signal integrity

Walker Products OE Brand Line Details

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 compatibility and performance tailored to specific vehicle applications, such as the BMW 530i and 740i series, providing a direct replacement that maintains the integrity of the vehicle’s emission control system.

Product Features and Specifications

The Walker 250-24380 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved accuracy in measuring oxygen levels in the exhaust stream. The 4-wire configuration supports both the sensor signal and heater circuit, enhancing responsiveness and durability. Its radiused polygon male connector ensures a secure and precise fit, reducing the risk of electrical issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the designated exhaust port. With a wiring harness length of 11.73 inches and an overall length of 15.28 inches, this sensor is engineered to fit the specific routing and space requirements of the compatible BMW models.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture 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 proper operation of catalytic converters in BMW 530i and 740i models

Installation Notes and Tips

When installing the Walker 250-24380 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the connector type matches the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24380 undergoes rigorous testing to comply with OEM specifications for fit, form, and function. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in the product’s longevity and effectiveness.