Walker 250-24661 Oxygen Sensor - Downstream

Overview of Walker 250-24661 Oxygen Sensor for Mazda 3 and 5

The Walker 250-24661 oxygen sensor is designed specifically for Mazda 3 and Mazda 5 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Mazda 3 and Mazda 5 vehicles
• Threaded mounting type with 18.0 mm thread diameter
• 29.06-inch wiring harness length with 20 gauge wire
• Radiused polygon female connector for secure electrical connection
• Overall length of 32.6 inches for proper installation

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts that meet or exceed factory specifications. The Walker Products OE line ensures compatibility and durability, making it a reliable choice for emission control components like oxygen sensors.

Technical Description and Features

The Walker 250-24661 oxygen sensor features a heated sensor type that allows for faster warm-up times and more accurate air-fuel mixture readings. It includes a 4-wire configuration with 20 gauge wires, providing stable signal transmission and heater circuit functionality. The sensor’s wiring harness length of 29.06 inches and overall length of 32.6 inches are designed to fit the specific routing requirements of Mazda 3 and Mazda 5 models. The radiused polygon female connector ensures a secure and precise electrical connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient engine performance
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine misfires and rough idling caused by faulty sensors
• Supports the vehicle’s onboard diagnostics system for emission compliance
• Addresses check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 250-24661 oxygen sensor, ensure the vehicle 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 female shape matches the vehicle harness for a secure fit. Avoid twisting or stretching the wiring harness beyond its 29.06-inch length to maintain sensor integrity. It is recommended to inspect the exhaust threads and clean them before installation to ensure proper sealing.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24661 undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term operation.