Walker 250-24655 Oxygen Sensor - Downstream Front

Overview of Walker 250-24655 Oxygen Sensor for Toyota Sienna

The Walker Products OE 250-24655 oxygen sensor is designed specifically for Toyota Sienna models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a flange mount and a radiused polygon male connector for secure installation.

• Wiring harness length: 9.37 inches
• Wire gauge measurement: 22 AWG
• Heated sensor type for faster response
• Specific fit for Toyota Sienna
• Four-wire configuration
• Radiused polygon male connector
• Thread diameter: 18.0 mm
• Overall length: 12.91 inches
• Flange mount installation

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24655) is engineered to meet the exact specifications required for Toyota Sienna vehicles. The heated sensor design allows for quicker warm-up times, improving fuel efficiency and reducing emissions. With a 9.37-inch wiring harness and 22-gauge wires, it ensures reliable electrical connectivity. The four-wire setup supports both the sensor signal and heater circuit, while the radiused polygon male connector provides a secure and precise fit. The flange mount and 18.0 mm thread diameter facilitate straightforward installation and stable positioning within the exhaust system.

The Walker Products OE line focuses on delivering original equipment quality parts that match or exceed factory standards. This oxygen sensor is part of that line, ensuring compatibility and durability for emission control systems in Toyota Sienna models.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for efficient combustion
• Reduces engine misfires and rough idling
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate oxygen level readings
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

• Ensure vehicle compatibility with Toyota Sienna models before installation
• Use proper tools to avoid damaging the flange mount or connector
• Check wiring harness length and connector type for fitment accuracy
• Follow manufacturer torque specifications for thread diameter 18.0 mm
• Inspect surrounding exhaust components for wear or damage during replacement

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and longevity. This part number 250-24655 undergoes rigorous testing to comply with emission control requirements. Warranty details are provided by Walker and typically cover defects in materials and workmanship under normal use.