Walker 250-24487 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of Walker Products OE Oxygen Sensor 250-24487

The Walker Products OE Oxygen Sensor 250-24487 is designed specifically for select Subaru and Toyota models, including the Forester, Outback, and Yaris. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fitment and reliable performance.

• Heated oxygen sensor with 4 wires for accurate emissions control
• Specific fit for Subaru and Toyota vehicles such as the B9 Tribeca and Crosstrek
• Threaded mounting with 18.0 mm thread diameter for secure installation
• 13.31-inch wiring harness length and 20 gauge wire for durability
• Radiused polygon male connector designed for exact OEM compatibility

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24487) is engineered to meet the exact specifications of your vehicle’s emission system. The heated sensor type allows for quicker warm-up times, improving fuel efficiency and reducing emissions. With a 4-wire configuration and a 20 gauge wire measurement, this sensor provides reliable signal transmission to the engine control unit. The 13.31-inch wiring harness length and radiused polygon male connector ensure a precise and secure connection, minimizing installation issues. The threaded mounting type with an 18.0 mm diameter thread guarantees a proper fit in the exhaust system of compatible Subaru and Toyota models.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to match or exceed factory specifications. This oxygen sensor is part of that line, providing a direct replacement solution that maintains the integrity of your vehicle’s emission control system. Using Walker Products OE parts helps ensure consistent performance and compliance with emissions standards for your Subaru or Toyota vehicle.

Common Applications and Issues Addressed

• Restores proper oxygen sensing for improved fuel economy
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by maintaining accurate air-fuel mixture readings
• Prevents rough idling and engine hesitation caused by faulty sensors
• Supports optimal catalytic converter function by providing accurate data

Installation Notes and Tips

Before installation, verify compatibility with your specific Subaru or Toyota model, such as the Legacy or XV Crosstrek. Use appropriate tools to remove the old sensor carefully to avoid damaging the exhaust manifold or wiring harness. Ensure the threaded mounting is tightened to manufacturer torque specifications. The 4-wire heated sensor requires proper connection of all wires to maintain heating function and sensor accuracy. Inspect the connector for secure engagement to prevent signal loss.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable operation. 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.