Walker 250-25164 Oxygen Sensor - Upstream, Upstream Rear or Upstream Right

Overview of Walker OE Base Sensor 250-25164

The Walker OE Base Sensor 250-25164 is a heated wide-band oxygen sensor designed for specific Ford, Land Rover, Lincoln, Mazda, and Mercury models. This sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated wide-band oxygen sensor for precise emissions monitoring
• Specific fit for select Ford, Land Rover, Lincoln, Mazda, and Mercury vehicles
• Spade terminal type with 6 male terminals and 5 wires
• Oblong female connector for secure connection
• Thread size M18 - 1.5 with 22mm wrench size for installation

Walker OE Base Sensor Product Line Details

The OE Base Sensor line by Walker focuses on delivering oxygen sensors that meet original equipment specifications. The 250-25164 model is engineered to provide reliable sensor performance and durability, maintaining proper emissions control and engine efficiency in compatible vehicles.

Technical Description and Features

This Walker oxygen sensor features a heated design to reduce warm-up time and improve sensor responsiveness. The wide-band sensor type allows for a broader range of air-fuel ratio detection, which is critical for modern engine management systems. The sensor includes a spade terminal type with six male terminals and five wires, ensuring proper electrical connectivity. Its oblong female connector shape provides a secure and precise fit. The thread size of M18 - 1.5 and a wrench size of 22mm facilitate straightforward installation in compatible vehicles.

Compatible Vehicles and Applications

This oxygen sensor is compatible with a range of Ford, Land Rover, Lincoln, Mazda, and Mercury models, including but not limited to:

• Ford F-150, F-250 Super Duty, F-350 Super Duty, E-150, E-250, E-350 Super Duty, Edge, Escape, Expedition, Explorer, Flex, Focus, Fusion, Mustang, Taurus, Taurus X, and Tribute
• Land Rover Range Rover, Range Rover Sport
• Lincoln Mariner, Milan, MKS, MKT, MKZ, Navigator, Sable
• Mazda Tribute
• Mercury Mariner, Milan, Sable

Common Issues Addressed by Walker Oxygen Sensor 250-25164

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor accuracy

Installation Notes and Tips

When installing the Walker OE Base Sensor 250-25164, ensure the vehicle is compatible with this specific fit sensor. Use a 22mm wrench to remove the old sensor and install the new one with the M18 - 1.5 thread size. Verify the oblong female connector securely mates with the vehicle’s wiring harness. Avoid over-tightening to prevent damage to the sensor or threads.

Quality Assurance and Warranty

Walker OE Base Sensors are manufactured to meet or exceed OEM standards for durability and performance. The 250-25164 oxygen sensor undergoes rigorous testing to ensure reliable operation in emissions control systems. Please refer to Walker’s official documentation for warranty details applicable to this part.