Walker 250-24684 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker 250-24684 Oxygen Sensor for Lexus Models

The Walker 250-24684 oxygen sensor is designed specifically for select Lexus vehicles, including the GS300, GS350, IS300, IS350, RC300, and RC350. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Lexus GS and IS series, plus RC300 and RC350
• 19.21-inch wiring harness length for proper installation
• 22-gauge wire for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 22.76 inches for exact fitment

Walker Products OE Line and Its Relevance

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 specifications. The Walker Products OE line ensures that the 250-24684 oxygen sensor integrates seamlessly with the vehicle’s existing systems, maintaining emissions compliance and engine efficiency for Lexus GS and IS models as well as the RC series.

Detailed Product Description and Attributes

The Walker 250-24684 oxygen sensor features a heated sensor element that allows for faster warm-up times, improving emissions control during cold starts. It includes a 4-wire design, which supports both the sensor signal and the heating element, ensuring consistent and accurate readings. The wiring harness length of 19.21 inches provides sufficient reach for proper routing in the engine bay, while the 22-gauge wire ensures durability and signal integrity. The sensor’s radiused polygon male connector offers a secure and precise fit, reducing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and a tight seal to prevent exhaust leaks. With an overall length of 22.76 inches, this sensor is engineered to fit the specified Lexus models without modification.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces emissions by ensuring proper catalytic converter function
• Improves engine performance by providing reliable sensor data
• Prevents rough idling and poor acceleration caused by faulty sensors

Installation Notes and Tips

When installing the Walker 250-24684 oxygen sensor, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the vehicle’s harness before installation. Thread the sensor by hand initially to avoid cross-threading, then tighten to manufacturer torque specifications. Check wiring routing to prevent contact with hot exhaust components or moving parts.

Quality Assurance and Warranty Information

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24684 undergoes rigorous testing to comply with emissions regulations and OEM fitment requirements. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary by region.