Walker 250-54066 Oxygen Sensor

Overview of Walker Products OE Oxygen Sensor 250-54066

The Walker Products OE Oxygen Sensor 250-54066 is designed for precise emission control in select Lexus, Toyota, and Scion vehicles. This heated oxygen sensor features a specific fitment and advanced wiring to ensure accurate readings and reliable performance.

• Heated oxygen sensor with 4-wire configuration
• 12.32-inch wiring harness length for optimal installation
• 20 gauge wire for durability and signal integrity
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 15.87 inches for proper fitment

Detailed Product Description

This oxygen sensor from Walker Products OE is engineered to meet the exact specifications of various Lexus, Toyota, and Scion models, including the Toyota Corolla, Lexus RX350, and Scion xD. The sensor type is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor signal and the heating element, ensuring consistent performance under different driving conditions.

The wiring harness length of 12.32 inches provides sufficient reach for installation without excess slack, while the 20 gauge wire ensures durability and reliable electrical conductivity. The radiused polygon male connector is designed for a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in compatible exhaust systems.

Walker Products OE Brand Line

Walker Products OE focuses on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of their OE line, which emphasizes exact fitment and reliable performance for emission control components. Using a Walker Products OE sensor helps maintain factory-level emissions compliance and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel economy
• Reduces engine misfires caused by faulty sensor readings
• Helps resolve check engine light codes related to oxygen sensors
• Supports proper catalytic converter function by providing precise air-fuel mixture data
• Prevents increased emissions due to sensor failure

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. The threaded mounting type requires proper torque to avoid damage to the sensor or exhaust manifold. Verify connector compatibility with the radiused polygon male connector to ensure a secure electrical connection. It is recommended to inspect wiring for damage and replace any worn components during installation.

Quality Assurance

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable operation. While specific warranty details are not provided here, Walker products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship.