Walker 250-54073 Oxygen Sensor - Upstream Front

Overview of Walker 250-54073 Oxygen Sensor for Toyota RAV4

The Walker 250-54073 oxygen sensor is designed specifically for Toyota RAV4 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal vehicle operation.

• Heated oxygen sensor with 4 wires for reliable signal transmission
• Specific fit for Toyota RAV4 ensuring proper installation and function
• Threaded mounting type with 18.0 mm thread diameter for secure attachment
• Radiused polygon male connector for exact electrical connection
• Wiring harness length of 13.31 inches and overall length of 16.85 inches
• 20 gauge wire measurement for durability and signal integrity

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-54073) is engineered with a heated sensor element to provide faster response times and improved accuracy in measuring exhaust oxygen levels. The sensor includes four wires, which support both the heating element and signal output, ensuring consistent performance under various operating conditions. The radiused polygon male connector is designed for a secure and precise fit, reducing the risk of electrical issues. With a wiring harness length of 13.31 inches and an overall length of 16.85 inches, this sensor fits the Toyota RAV4’s specific engine layout. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and a tight seal to prevent exhaust leaks.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and reliability for Toyota RAV4 owners who require a direct replacement part. Walker Products OE parts are designed to integrate seamlessly with vehicle systems, supporting emission control and engine management standards.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents engine performance problems caused by faulty sensor signals
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Walker 250-54073 oxygen sensor on a Toyota RAV4, 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 harness for proper electrical connection. Avoid twisting or stretching the wiring harness during installation to maintain sensor integrity.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports long-term vehicle operation.