Walker 250-24649 Oxygen Sensor

Reliable Oxygen Sensor for GM Vehicles

The Walker 250-24649 oxygen sensor is designed specifically for select Buick, Cadillac, Chevrolet, GMC, and Saturn models. 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 design for faster response
• Specific fit for GM models including Buick LaCrosse, Cadillac CTS, Chevrolet Equinox, GMC Terrain, and Saturn Outlook
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• 18.03-inch wiring harness length with 20-gauge wires for reliable connectivity
• Male connector with radiused polygon shape for proper fit and electrical connection
• Overall length of 21.57 inches to accommodate factory specifications

Walker Products OE Line Overview

The Walker Products OE line focuses on delivering emission control components that meet original equipment specifications. This oxygen sensor from the Walker Products OE series is engineered to match the exact fit, form, and function required by GM vehicles, ensuring compatibility and durability in emission systems.

Product Details and Specifications

This oxygen sensor features a heated sensor type with a 4-wire configuration, which allows for quicker sensor warm-up and improved accuracy in measuring exhaust oxygen levels. The 18.03-inch wiring harness and 20-gauge wire size provide a robust electrical connection, while the radiused polygon male connector ensures a secure and precise fit. The sensor’s threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system. The overall length of 21.57 inches is designed to meet the exact requirements of the specified GM models.

Common Applications and Problem Resolution

• Restores proper air-fuel ratio readings for improved fuel efficiency
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring accurate exhaust gas monitoring
• Prevents engine performance problems caused by faulty sensor signals
• Maintains compliance with emission control standards on Buick, Cadillac, Chevrolet, GMC, and Saturn vehicles

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and wiring harness length match the factory specifications for your Buick LaCrosse, Cadillac CTS, Chevrolet Equinox, GMC Terrain, or Saturn Outlook. Properly torque the sensor to the manufacturer’s specifications to prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. The 250-24649 part number undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details are provided by Walker and typically include protection against defects in materials and workmanship.