Walker 250-25167 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker OE Base Sensor 250-25167

The Walker OE Base Sensor 250-25167 is a heated wide-band oxygen sensor designed for specific vehicle applications. Engineered to meet precise fitment requirements, this sensor supports optimal emission control and engine performance in select Ford, Hyundai, Kia, Lincoln, Porsche, and Saab models.

• Heated wide-band oxygen sensor for accurate air-fuel ratio monitoring
• Specific fitment for models including Ford F-150, Hyundai Accent, Kia Soul, Lincoln Navigator, Porsche Cayenne, and Saab 9-3
• Spade terminal type with 6 male terminals and 5 wires for reliable electrical connections
• Oblong female connector shape ensuring secure and proper installation
• Thread size M18 - 1.5 with 22mm wrench size for compatibility with factory mounting points

Walker OE Base Sensor Product Line Details

The OE Base Sensor line by Walker focuses on delivering oxygen sensors that match original equipment specifications for fit, form, and function. This ensures that the 250-25167 sensor integrates seamlessly with the vehicle’s emission control system, maintaining compliance and performance standards. The line emphasizes precise sensor types and connector configurations tailored to specific vehicle makes and models.

Technical Description and Features

The Walker 250-25167 oxygen sensor is a heated wide-band sensor, which provides a broad measurement range of oxygen content in the exhaust gases. This capability allows the engine control unit to finely tune the air-fuel mixture for improved combustion efficiency and reduced emissions. The sensor features a spade terminal type with six male terminals and five wires, designed to interface with the vehicle’s wiring harness via an oblong female connector. The specific fitment ensures compatibility with vehicles such as the Ford Expedition, Hyundai Veloster, Kia Rio, Lincoln Navigator, Porsche 911, and Saab 9-3. The sensor’s thread size of M18 - 1.5 and 22mm wrench size facilitate straightforward installation using standard tools.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper engine management
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel economy by enabling precise air-fuel ratio adjustments
• Reduces harmful emissions by maintaining optimal combustion
• Prevents drivability problems such as rough idling or hesitation

Installation Notes and Tips

When installing the Walker OE Base Sensor 250-25167, ensure the vehicle is cooled down to avoid burns. Use a 22mm wrench to remove the old sensor and install the new one with the M18 - 1.5 thread size. Confirm the oblong female connector securely mates with the vehicle’s wiring harness. Avoid twisting or damaging the sensor wires during installation. Proper torque should be applied to prevent exhaust leaks and sensor damage.

Quality Assurance and Warranty

Walker OE Base Sensors are manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details for part number 250-25167 are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports long-term vehicle reliability.