Walker 250-22009 Oxygen Sensor - Downstream

Overview of Walker 250-22009 Oxygen Sensor for Lexus LS400

The Walker 250-22009 oxygen sensor is designed specifically for the Lexus LS400, ensuring precise emission control and optimal engine performance. This non-heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Wiring harness length: 15.28 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Specific fit for Lexus LS400
• Wire quantity: 2 wires
• Connector shape: Radiused polygon
• Connector gender: Male
• Thread diameter: 18.0 mm
• Overall length: 18.82 inches
• Mounting type: Threaded

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-22009) is engineered to meet the exact specifications required for the Lexus LS400. The sensor’s non-heated design includes two 20-gauge wires with a 15.28-inch wiring harness, providing reliable signal transmission to the vehicle’s engine control unit. The radiused polygon male connector ensures a secure and precise connection, while the 18.0 mm threaded mounting type allows for straightforward installation. With an overall length of 18.82 inches, this sensor fits perfectly within the emission control system of the LS400.

The Walker Products OE line focuses on delivering original equipment quality parts that match or exceed factory standards. This oxygen sensor is part of that line, offering a direct replacement solution that maintains the integrity of the vehicle’s emission system and supports compliance with environmental regulations.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for proper air-fuel mixture
• Helps resolve engine performance issues related to faulty sensors
• Reduces emissions by ensuring correct sensor feedback
• Prevents check engine light triggers caused by sensor failure
• Supports smooth idling and improved fuel efficiency

Installation Notes and Tips

• Ensure the vehicle is cool before installation to avoid burns
• Use appropriate tools for the 18.0 mm threaded sensor mount
• Verify connector compatibility with the radiused polygon male plug
• Handle wiring carefully to prevent damage to the 20-gauge wires
• Follow vehicle manufacturer torque specifications during installation

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. This part number 250-22009 undergoes rigorous testing to comply with OEM specifications for the Lexus LS400. 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 function.