Walker 250-24139 Oxygen Sensor - Downstream, Downstream Front or Downstream Rear

Overview of Walker Products OE Oxygen Sensor 250-24139

The Walker Products OE Oxygen Sensor 250-24139 is designed specifically for select Ford and Mazda vehicles, including the Mazda 626, Millenia, MX-6, and the Ford Probe. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.

• Heated oxygen sensor with 4-wire configuration for reliable operation
• Specific fit for Ford and Mazda models: 626, Millenia, MX-6, and Probe
• Threaded mounting type with an 18.0 mm thread diameter for secure installation
• 23.15-inch wiring harness length with 20-gauge wire for durability and ease of connection
• Radiused polygon female connector designed for exact OEM compatibility
• Overall length of 26.69 inches to accommodate factory specifications

Detailed Product Features and Specifications

This Walker oxygen sensor features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring accurate and stable readings. The wiring harness length of 23.15 inches and 20-gauge wire gauge measurement provide sufficient length and durability for installation in the specified Ford and Mazda models. The radiused polygon female connector matches the original equipment connector shape, facilitating a straightforward plug-and-play replacement. The sensor mounts via a threaded connection with an 18.0 mm diameter, matching factory mounting points for a secure fit.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering direct-fit emission control components that meet original equipment specifications. This oxygen sensor from the Walker Products OE line is engineered to provide reliable performance and durability, maintaining compliance with emissions standards for the specified Ford and Mazda vehicles. Using parts from this product line helps ensure compatibility and consistent operation within the vehicle's emission system.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Mazda 626, Millenia, MX-6, and Ford Probe
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by providing accurate data to the engine control unit
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Remove the old oxygen sensor carefully to avoid damaging the wiring harness or connector. The 18.0 mm threaded sensor requires an oxygen sensor socket or appropriate wrench for removal and installation. Verify the radiused polygon female connector aligns correctly with the vehicle’s wiring harness before securing. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed OEM standards for fit, form, and function. This part number 250-24139 undergoes rigorous quality control to ensure durability and reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region or distributor.