Walker 250-24989 Oxygen Sensor

Overview of Walker Products OE Oxygen Sensor 250-24989

The Walker Products OE Oxygen Sensor 250-24989 is designed specifically for select Ford, Lincoln, and Mercury vehicles. This heated oxygen sensor ensures accurate emissions control and optimal engine performance for models such as the Ford Escape, Explorer, F-150, and Lincoln MKZ.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for Ford, Lincoln, and Mercury vehicles
• 15.28-inch wiring harness length with 20-gauge wire
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Overall length of 18.82 inches for proper installation

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 250-24989) features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring reliable operation. The wiring harness length of 15.28 inches and 20-gauge wire 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. Additionally, the radiused polygon female connector is designed to match factory specifications for a seamless plug-and-play replacement.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering direct-fit emission control components that meet original equipment specifications. This oxygen sensor is part of that line, offering compatibility and performance aligned with factory standards for Ford, Lincoln, and Mercury vehicles. Choosing a Walker Products OE sensor helps maintain proper emissions function and engine management system accuracy.

Compatible Vehicles and Common Applications

• Ford Escape, Explorer, F-150, Flex, Fusion, Mustang, Taurus, Transit series
• Lincoln Mariner, Milan, MKS, MKT, MKZ
• Mercury Mariner, Milan
• Designed for specific fitment, not universal

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance problems such as rough idling or hesitation
• Heater circuit failure causing delayed sensor response

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and gender match the vehicle’s wiring harness for a proper connection. Follow torque specifications for the 18.0 mm threaded sensor to prevent leaks or sensor damage. It is recommended to inspect wiring and connectors for corrosion or damage during replacement.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. This part number 250-24989 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.