Walker 250-25119 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 250-25119 Oxygen Sensor

The Walker 250-25119 oxygen sensor is designed specifically for select Ford vehicles, including the F-150, Mustang, and Transit series. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine control unit.

• Heated oxygen sensor with 5-wire configuration
• Specific fit for Ford models such as E-350 Super Duty, Escape, Fusion, and Transit variants
• 16.53-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure electrical connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 16.68 inches to accommodate factory fitment

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-25119) is engineered to meet the exact specifications of Ford vehicles including the F-150, Mustang, Escape, Fusion, and multiple Transit models. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings. The sensor’s 5-wire design supports both signal and heater circuits, enhancing responsiveness and durability. The 16.53-inch wiring harness length and radiused polygon female connector ensure a precise and secure fit, while the 18.0 mm threaded mounting type allows for straightforward installation in the exhaust system.

Walker Products OE is a product line focused on delivering original equipment quality parts that match or exceed factory standards. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed on your Ford vehicle.

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 maintaining proper combustion control
• Prevents rough idling and engine hesitation caused by faulty sensors
• Supports proper operation of catalytic converters and emission systems

Installation Notes and Tips

• Ensure vehicle compatibility with Ford E-350 Super Duty, Escape, F-150, Fusion, Mustang, and Transit models before installation
• Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting area
• Check wiring harness length and connector type to confirm fitment prior to installation
• Apply anti-seize compound on threads if recommended by vehicle manufacturer
• Verify sensor operation with diagnostic tools after installation

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports the longevity of your vehicle’s emission control system.