Walker 250-23042 Oxygen Sensor - Upstream Front or Upstream Rear

Overview of Walker 250-23042 Oxygen Sensor for Mazda 626 and MX-6

The Walker 250-23042 oxygen sensor is designed specifically for select Mazda 626 and MX-6 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Mazda 626 and MX-6 vehicles
• Threaded mounting type with 18.0 mm thread diameter
• 11.34 inches wiring harness length and 14.88 inches overall length
• Radiused polygon male connector for secure connection
• 20 gauge wire for reliable signal transmission

Detailed Features and Specifications

This oxygen sensor from Walker Products OE features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The 3-wire design supports efficient sensor operation and signal accuracy. With a wiring harness length of 11.34 inches and an overall length of 14.88 inches, the sensor is engineered to fit precisely in the exhaust system of Mazda 626 and MX-6 models. The threaded mounting type with an 18.0 mm diameter ensures a secure and leak-free installation. The radiused polygon male connector provides a reliable electrical connection, while the 20 gauge wire gauge measurement supports consistent signal quality.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is part of that line, ensuring compatibility and performance tailored to the specific needs of Mazda 626 and MX-6 vehicles. The OE designation indicates that this sensor matches the fit, form, and function of the original sensor installed by the manufacturer.

Common Applications and Problem Resolution

• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Addresses emissions control problems and helps pass vehicle inspections
• Prevents check engine light triggers caused by faulty oxygen sensors
• Improves fuel efficiency by providing accurate exhaust gas readings
• Reduces harmful exhaust emissions by ensuring proper catalytic converter function

Installation Notes and Tips

When installing the Walker 250-23042 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and gender match the vehicle harness for a secure fit. Properly torque the sensor to manufacturer specifications to prevent leaks. It is recommended to inspect wiring and connectors for damage before installation.

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 emissions regulations and supports reliable vehicle operation.