Walker 250-54115 Oxygen Sensor - Upstream

Overview of Walker 250-54115 Oxygen Sensor for Lexus Vehicles

The Walker Products OE 250-54115 oxygen sensor is designed specifically for select Lexus models, including the GS200t, GS300, IS200t, IS300, RC200t, and RC300. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fitment for Lexus GS200t, GS300, IS200t, IS300, RC200t, and RC300 models
• Threaded mounting type with an 18.0 mm thread diameter for secure installation
• Radiused polygon male connector for proper electrical connection
• Wiring harness length of 14.76 inches and overall length of 17.71 inches
• Wire gauge measurement of 20 for durability and signal integrity

Walker Products OE Line and Part Specifications

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-54115 oxygen sensor is engineered to match the exact fit and function required by Lexus vehicles, ensuring compatibility and reliable performance. This sensor’s heated design allows for faster activation and improved emissions control under various operating conditions.

Detailed Product Description and Attributes

This oxygen sensor features a 4-wire heated sensor type, which includes two wires for the heating element and two for the sensor signal. The radiused polygon male connector ensures a secure and precise electrical connection, reducing the risk of signal loss or corrosion. With a wiring harness length of 14.76 inches and an overall length of 17.71 inches, the sensor is designed to fit seamlessly within the engine bay of compatible Lexus models. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and a tight seal to prevent exhaust leaks.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level readings
• Prevents engine performance issues such as rough idling or hesitation
• Resolves check engine light triggers related to oxygen sensor faults
• Supports optimal fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

When installing the Walker 250-54115 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector’s radiused polygon shape matches the vehicle’s wiring harness for proper fitment. It is recommended to inspect the wiring and connector for any signs of wear or corrosion before installation. Proper torque specifications should be followed to secure the sensor without over-tightening.

Quality Assurance and Warranty Information

Walker Products OE parts are manufactured to meet stringent quality standards, ensuring durability and reliable performance. The 250-54115 oxygen sensor undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term functionality.