Walker 250-23073 Oxygen Sensor - Upstream

Overview of Walker 250-23073 Oxygen Sensor for Mercedes-Benz

The Walker 250-23073 oxygen sensor is designed specifically for select Mercedes-Benz models including the 260E, 300CE, 300E, 300SE, 300SEL, 300TE, and 560SL. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated oxygen sensor with threaded mounting
• Wiring harness length: 27.28 inches
• Wire gauge measurement: 20 gauge
• Three-wire configuration with female radiused polygon connector
• Thread diameter of 18.0 mm and overall length of 30.83 inches
• Specific fit for Mercedes-Benz models listed

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. Walker Products OE components are engineered to meet or exceed factory specifications, ensuring reliable fitment and performance for emission control systems. The 250-23073 sensor maintains the integrity of your vehicle’s emissions system by providing precise sensor readings and durability.

Technical Description and Features

The Walker 250-23073 oxygen sensor features a heated sensor element that allows for quicker activation and more accurate readings under various operating conditions. The sensor’s three-wire design supports efficient signal transmission and heater control. Its 27.28-inch wiring harness length and radiused polygon female connector facilitate straightforward installation and secure electrical connections. The threaded mounting type with an 18.0 mm diameter ensures a proper seal and fit in the exhaust system. This sensor is engineered specifically for Mercedes-Benz models such as the 300SE and 560SL, providing a direct replacement that maintains factory performance standards.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and engine hesitation
• Reduces emissions by ensuring correct catalytic converter operation
• Prevents check engine light related to oxygen sensor faults
• Improves fuel efficiency by maintaining optimal combustion

Installation Notes and Tips

When installing the Walker 250-23073 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor carefully to prevent damage to the exhaust threads. Verify the connector type matches the vehicle’s wiring harness for a secure connection. The 27.28-inch wiring harness length provides flexibility during installation, but routing should avoid excessive heat or moving parts. Threaded mounting requires proper torque to avoid leaks or sensor damage.

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 for part number 250-23073 may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports the longevity of your Mercedes-Benz emission control system.