Walker 250-25040 Oxygen Sensor

Overview of Walker Products OE Oxygen Sensor 250-25040

The Walker Products OE Oxygen Sensor 250-25040 is designed for precise emission control in select Audi, Ford, Lincoln, Porsche, and Volkswagen vehicles. This heated oxygen sensor features a specific fitment to ensure optimal performance and compatibility with models such as the Audi A4 Quattro, Ford F-150, and Volkswagen Tiguan.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fitment for select Audi, Ford, Lincoln, Porsche, and Volkswagen models
• 27.09-inch wiring harness length with 5 wires of 20 gauge
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Overall length of 30.63 inches for proper installation

Detailed Product Features and Specifications

This Walker Products OE oxygen sensor (part number 250-25040) is engineered with a heated sensor element to provide faster warm-up times and more accurate oxygen level readings. The sensor includes a 27.09-inch wiring harness with five 20-gauge wires, allowing for reliable electrical connectivity. Its radiused polygon male connector ensures a secure and precise fit, reducing the risk of connection issues. The sensor mounts via a threaded design with an 18.0 mm thread diameter, compatible with specific OEM mounting points. The overall length of 30.63 inches supports proper placement within the exhaust system.

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, providing a direct replacement solution for emission control systems in vehicles such as the Audi A6 Quattro, Ford Escape, Lincoln Navigator, Porsche Panamera, and Volkswagen Golf.

Compatible Vehicles and Applications

This oxygen sensor is compatible with a range of vehicles, including but not limited to:

• Audi A1, A3, A4, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, A7 Quattro, A8 Quattro, allroad
• Ford Amarok, Bronco Sport, EcoSport, Escape, Expedition, F-150, Focus
• Lincoln Navigator
• Porsche Panamera, Cayenne, 911, Macan, and others
• Volkswagen Beetle, CC, Crafter Van, Golf, Jetta, Passat, Phaeton, Tiguan, Touareg, TT Quattro

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor engine performance
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor failure or slow response
• Reduced fuel efficiency from inaccurate oxygen level detection
• Failed emissions tests related to sensor malfunction

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Walker 250-25040 sensor into the exhaust system’s designated port. Ensure the connector matches the radiused polygon male design for proper electrical connection. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness routing to prevent contact with hot or moving parts. It is recommended to check for any diagnostic trouble codes before and after installation to confirm sensor functionality.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. This part undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.