Walker 250-54118 Oxygen Sensor - Upstream or Upstream Rear

Overview of Walker 250-54118 Oxygen Sensor for Lexus and Toyota

The Walker 250-54118 oxygen sensor is designed specifically for select Lexus and Toyota models, including the Highlander, RX350, RX350L, and RX450hL. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and emissions control.

• Compatible with Lexus Highlander, RX350, RX350L, and RX450hL
• Walker Products OE brand line ensures original equipment quality
• Part number 250-54118 for precise fit and function
• Category: Emission Control > Sensors, Part Type: Oxygen Sensor
• GTIN: 00724620129797 for accurate identification

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering components that meet or exceed original equipment specifications. This oxygen sensor, part number 250-54118, is engineered to provide reliable emissions monitoring and maintain the performance standards expected by Lexus and Toyota manufacturers. Using a Walker Products OE sensor helps ensure compatibility and durability consistent with factory-installed parts.

Product Description and Function

The Walker 250-54118 oxygen sensor measures the oxygen content in the exhaust stream of compatible Lexus and Toyota vehicles. By providing real-time data to the engine control unit (ECU), it helps regulate the air-fuel mixture for efficient combustion and reduced emissions. This sensor is essential for maintaining compliance with emissions regulations and supporting optimal engine operation in models such as the Lexus RX350 and Toyota Highlander.

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased exhaust emissions affecting emissions test results
• Engine performance problems such as rough idling or hesitation
• Failed emissions inspections related to sensor malfunction

Installation Notes and Tips

When installing the Walker 250-54118 oxygen sensor, ensure the vehicle is compatible by verifying the make and model. Use proper tools to avoid damaging the sensor or wiring harness. It is recommended to replace the sensor when the engine is cool to prevent burns. Follow manufacturer torque specifications to secure the sensor properly and avoid exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards for fit, form, and function. While specific warranty details for part number 250-54118 may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor supports maintaining the emissions and performance standards set by Lexus and Toyota.