Walker 250-23016 Oxygen Sensor - Upstream

Overview of Walker 250-23016 Oxygen Sensor

The Walker 250-23016 oxygen sensor is designed specifically for select BMW models, including the 325e, 325es, 535i, 635CSi, and 735i. This heated oxygen sensor provides accurate emissions monitoring to help maintain engine performance and comply with emission standards.

• Heated sensor type for faster response times
• Specific fit for BMW 325e, 325es, 535i, 635CSi, and 735i models
• Threaded mounting with 18.0 mm thread diameter
• 17.24-inch wiring harness length with 3 wires of 20 gauge
• Radiused polygon male connector for secure connection
• Overall length of 20.79 inches for proper fitment

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures compatibility and reliable performance for emission control components, making it a suitable choice for maintaining the integrity of your BMW’s emission system.

Detailed Product Description

The Walker 250-23016 oxygen sensor features a heated sensor element that allows for quicker warm-up times, improving fuel efficiency and reducing emissions shortly after engine start. Its specific fitment ensures proper installation and optimal sensor performance on BMW 325e, 325es, 535i, 635CSi, and 735i models. The sensor includes a 17.24-inch wiring harness with three 20-gauge wires, providing a durable and reliable electrical connection. The radiused polygon male connector and threaded mounting with an 18.0 mm diameter thread ensure a secure and precise fit. With an overall length of 20.79 inches, this sensor is engineered to match OEM specifications for seamless integration.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires and rough idling caused by faulty sensors
• Supports emission system compliance by accurately monitoring exhaust gases
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by providing accurate feedback to the engine control unit

Installation Notes and Tips

• Ensure compatibility with BMW 325e, 325es, 535i, 635CSi, and 735i models before installation
• Use proper tools to avoid damaging the 18.0 mm threaded mounting
• Check wiring harness length and connector shape for correct fitment
• Follow vehicle manufacturer torque specifications when installing the sensor
• Inspect the connector for secure engagement to prevent electrical issues

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 250-23016 part number undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.