Walker 250-24644 Oxygen Sensor - Downstream

Overview of Walker 250-24644 Oxygen Sensor for Toyota Highlander

The Walker 250-24644 oxygen sensor is designed specifically for Toyota Highlander models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

• Heated oxygen sensor with 4 wires for accurate readings
• Specific fit for Toyota Highlander ensuring compatibility
• 29.06-inch wiring harness length for flexible placement
• Thread diameter of 18.0 mm with threaded mounting
• Radiused polygon female connector for reliable connection
• Wire gauge measurement of 20 for optimal signal transmission
• Overall length of 32.6 inches for proper fitment

Detailed Features and Specifications

The Walker 250-24644 oxygen sensor is a heated sensor equipped with four wires, allowing for faster warm-up times and improved accuracy in measuring oxygen levels in the exhaust gases. The sensor’s wiring harness length of 29.06 inches provides sufficient reach for installation in the Toyota Highlander’s emission system. Its 20-gauge wire ensures consistent electrical conductivity, while the radiused polygon female connector offers a secure and precise fit. The sensor mounts via an 18.0 mm threaded connection, matching OEM specifications for a direct replacement. With an overall length of 32.6 inches, this sensor fits seamlessly within the vehicle’s emission control system.

Walker Products OE Brand Line

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts designed to meet or exceed factory standards. The Walker Products OE line ensures that the 250-24644 oxygen sensor maintains the reliability and performance expected from OEM components, making it a suitable replacement for the Toyota Highlander’s emission control system.

Common Applications and Problem Solving

• Restores accurate air-fuel mixture readings for improved engine efficiency
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports smooth engine performance by maintaining correct exhaust gas monitoring

Installation Notes and Tips

When installing the Walker 250-24644 oxygen sensor on a Toyota Highlander, ensure the threaded mounting is properly tightened to 18.0 mm specifications to avoid exhaust leaks. The radiused polygon female connector should be securely connected to the vehicle’s wiring harness to maintain signal integrity. It is recommended to inspect the wiring harness for any damage before installation and to use anti-seize compound on the sensor threads to facilitate future removal.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. The 250-24644 part number undergoes rigorous testing to comply with emission control requirements. Warranty details are provided by Walker and typically cover defects in materials and workmanship, supporting long-term use in Toyota Highlander vehicles.