Walker 250-241177 Oxygen Sensor - Downstream

Overview of Walker 250-241177 Oxygen Sensor

The Walker 250-241177 oxygen sensor is designed specifically for select Mazda, Scion, and Toyota models, including the CX-3, iA, MX-5 Miata, and Yaris. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Mazda CX-3, Scion iA, Toyota MX-5 Miata, and Yaris models
• 12.59-inch wiring harness length with 20-gauge wire for durability
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• Female connector with radiused polygon shape for proper connection
• Overall length of 15.74 inches to fit designated vehicle applications

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-241177 oxygen sensor from this line is engineered to provide precise emissions feedback and maintain compliance with vehicle emissions standards. This ensures compatibility and performance consistent with the original sensor installed in your Mazda, Scion, or Toyota vehicle.

Product Features and Specifications

This oxygen sensor features a heated sensor type that allows for faster warm-up times and improved accuracy in measuring oxygen levels in the exhaust stream. The 4-wire configuration supports both the sensor signal and heater circuit, enhancing sensor responsiveness. The wiring harness length of 12.59 inches and 20-gauge wire gauge measurement provide durability and ease of routing during installation. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust system. The female connector with a radiused polygon shape is designed for a precise and secure electrical connection.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers caused by sensor failure
• Supports compliance with emissions regulations for Mazda CX-3, Scion iA, Toyota MX-5 Miata, and Yaris

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use the correct tools to remove the old sensor and install the Walker 250-241177 oxygen sensor securely by threading it into place with the specified 18.0 mm diameter. Verify the connector matches the female radiused polygon shape for proper connection. Route the 12.59-inch wiring harness carefully to avoid contact with hot or moving parts. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 250-241177 part number undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.