Walker 250-25083 Oxygen Sensor - Upstream

Overview of Walker 250-25083 Oxygen Sensor for Mitsubishi Vehicles

The Walker 250-25083 oxygen sensor is designed specifically for select Mitsubishi models, including the Lancer, Outlander, and Outlander Sport. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.

• Heated oxygen sensor with 5-wire configuration
• Specific fit for Mitsubishi Lancer, Outlander, and Outlander Sport
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Wiring harness length of 38.9 inches and overall length of 42.44 inches
• Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-25083) features a heated sensor element that allows for faster warm-up times and improved emissions control. The sensor includes a 5-wire design, which supports both the sensor signal and heater circuit, ensuring consistent operation under various driving conditions. The radiused polygon male connector provides a secure and precise fit, reducing the risk of electrical issues. With a wiring harness length of 38.9 inches and an overall length of 42.44 inches, this sensor is engineered to fit the specific routing and mounting requirements of Mitsubishi Lancer, Outlander, and Outlander Sport models. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and compatibility with factory exhaust ports.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering direct-fit emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of that line, ensuring it matches the exact fit, form, and function required by Mitsubishi vehicles. Using Walker Products OE parts helps maintain factory-level performance and emissions compliance.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing precise emissions data
• Reduces harmful exhaust emissions by maintaining proper sensor function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

Installation of the Walker 250-25083 oxygen sensor requires removal of the old sensor from the threaded exhaust port. Ensure the sensor wiring harness is routed without sharp bends or contact with hot exhaust components. The radiused polygon male connector should be securely connected to the vehicle’s wiring harness to prevent electrical faults. Use appropriate tools to tighten the sensor to the recommended torque specifications to avoid damage.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part number 250-25083 is backed by Walker’s quality assurance protocols, providing confidence in its reliability and fitment for Mitsubishi Lancer, Outlander, and Outlander Sport models.