Walker 250-241027 Oxygen Sensor - Downstream

Overview of Walker 250-241027 Oxygen Sensor

The Walker 250-241027 oxygen sensor is designed specifically for select BMW models, including the 228i, 320i, 328i, 428i, 528i, 530i, X1, X3, X4, X5, and Z4. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for various BMW models ensuring proper installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Wiring harness length of 23.15 inches and overall length of 26.69 inches
• Wire gauge measurement of 22 for durability and signal integrity

Detailed Product Features and Specifications

This Walker Products OE oxygen sensor (part number 250-241027) features a heated sensor element that allows for faster warm-up times and improved emissions control. The 4-wire configuration supports both the sensor signal and heater circuit, enhancing responsiveness and durability. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust system. The radiused polygon male connector is designed for a precise and reliable electrical connection, reducing the risk of disconnection or signal loss. With a wiring harness length of 23.15 inches and an overall length of 26.69 inches, this sensor is engineered to fit the specified BMW models without modification.

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 part of that line, ensuring compatibility and performance consistent with factory-installed components. Choosing a Walker Products OE sensor helps maintain the integrity of your BMW’s emission control system and supports compliance with environmental regulations.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for efficient engine operation
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper combustion control
• Reduces harmful emissions by maintaining optimal sensor performance
• Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

Installation of the Walker 250-241027 oxygen sensor requires removal of the old sensor from the exhaust manifold or pipe. Ensure the threaded mounting hole is clean and free of debris before installation. The radiused polygon male connector should be securely connected to the vehicle’s wiring harness to avoid electrical issues. Use appropriate tools to tighten the sensor to the manufacturer’s torque specifications to prevent damage. It is recommended to verify sensor operation with a diagnostic tool after installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part number 250-241027 is backed by Walker’s quality assurance protocols, providing confidence in its reliability for BMW vehicles. Please refer to Walker’s official documentation for specific warranty details.