Walker 250-24999 Oxygen Sensor - Downstream, Upstream, Upstream Front or Upstream Rear

Overview of Walker Products OE Oxygen Sensor 250-24999

The Walker Products OE Oxygen Sensor 250-24999 is designed specifically for select Ford, Lincoln, and Mercury vehicles, including the Escape, Fusion, Milan, and MKZ models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Ford Escape, Fusion, Lincoln Milan, and Mercury MKZ
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• 13.31-inch wiring harness length with 20 gauge wire for durability
• Radiused polygon female connector for proper electrical connection
• Overall length of 16.85 inches to accommodate factory specifications

Detailed Product Features and Specifications

This Walker Products OE oxygen sensor (part number 250-24999) features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The 4-wire configuration supports both the sensor element and the heater circuit, ensuring consistent sensor performance under various operating conditions. The wiring harness length of 13.31 inches and 20 gauge wire measurement provide a robust electrical connection, while the radiused polygon female connector ensures compatibility with factory wiring harnesses. The sensor’s threaded mounting type with an 18.0 mm thread diameter allows for a secure and precise fit in the exhaust system. With an overall length of 16.85 inches, this sensor meets the exact specifications required for proper installation in the targeted vehicle models.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed in Ford, Lincoln, and Mercury vehicles. Choosing a Walker Products OE sensor helps maintain the integrity of the vehicle’s emissions system and supports compliance with environmental regulations.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunctions

Installation Notes and Tips

Installation of the Walker Products OE oxygen sensor 250-24999 requires removal of the old sensor from the exhaust manifold or pipe. Use appropriate oxygen sensor socket tools to avoid damage. Ensure the threaded mounting hole is clean before installation. Connect the 4-wire harness securely to the vehicle’s wiring using the radiused polygon female connector. Verify proper routing of the wiring harness to prevent contact with hot exhaust components or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part number 250-24999 is backed by Walker’s commitment to quality, providing reliable operation for the specified Ford, Lincoln, and Mercury models. Please refer to Walker’s official documentation for warranty details applicable to this oxygen sensor.