Walker 250-24203 Oxygen Sensor - Downstream Rear

Overview of Walker 250-24203 Oxygen Sensor for Toyota RAV4

The Walker Products OE 250-24203 oxygen sensor is designed specifically for Toyota RAV4 models, providing precise emission control monitoring. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• Specific fit for Toyota RAV4 vehicles
• 13.31-inch wiring harness length with 4 wires
• 20 gauge wire measurement for durability
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 16.85 inches for proper installation

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-24203) features a heated sensor element that allows it to reach operating temperature quickly, improving emission control efficiency. The sensor includes a 13.31-inch wiring harness with four 20-gauge wires, ensuring reliable electrical connectivity. Its radiused polygon male connector is designed for a secure and precise fit, reducing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of Toyota RAV4 models. The overall length of 16.85 inches accommodates proper placement within the vehicle’s emission system.

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 performance consistent with Toyota’s original components. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission control system.

Common Applications and Problem Resolution

• Helps correct inaccurate air-fuel mixture readings
• Resolves engine performance issues related to faulty oxygen sensors
• Reduces emissions by providing accurate feedback to the engine control unit
• Prevents check engine light triggers related to sensor failure
• Supports fuel efficiency by maintaining proper combustion

Installation Notes and Tips

When installing the Walker 250-24203 oxygen sensor on a Toyota RAV4, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Confirm the radiused polygon male connector is fully seated and locked to avoid electrical issues. Verify wiring harness routing to prevent contact with hot exhaust components or moving parts.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and 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 reliability.