Walker 250-24653 Oxygen Sensor - Downstream

Overview of Walker 250-24653 Oxygen Sensor

The Walker 250-24653 oxygen sensor is designed specifically for select Chevrolet and Mitsubishi models, including the Astra, Lancer, and Outlander. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Chevrolet Astra and Mitsubishi Lancer, Outlander
• 19.21-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 22.76 inches for proper fitment

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24653) is engineered to meet the exact specifications of your vehicle’s original equipment. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring consistent performance. The sensor’s 19.21-inch wiring harness length and radiused polygon female connector allow for a secure and precise fit in the exhaust system. Its threaded mounting type with an 18.0 mm diameter thread ensures compatibility with the exhaust manifold or pipe on Chevrolet Astra and Mitsubishi Lancer and Outlander models.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering direct-fit replacement parts that meet or exceed original equipment standards. This oxygen sensor is part of that line, providing reliable emissions control components designed for specific vehicle applications. Using Walker Products OE parts helps maintain factory-level performance and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for engine control
• Resolves rough idling and poor fuel economy caused by faulty sensors
• Helps correct check engine light codes related to oxygen sensor failure
• Improves emissions system performance for compliance with regulations
• Prevents damage to catalytic converters from improper fuel mixture

Installation Notes and Tips

When installing the Walker 250-24653 oxygen sensor, ensure the vehicle is cool to avoid burns. Use anti-seize compound on the sensor threads if not pre-applied to facilitate future removal. Verify the connector matches the radiused polygon female shape for proper connection. Tighten the sensor to the manufacturer’s torque specifications to prevent exhaust leaks. This sensor is designed for specific fitment on Chevrolet Astra and Mitsubishi Lancer and Outlander models, so confirm compatibility before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this part helps ensure your vehicle’s emissions system operates within factory specifications.