Walker 250-241189 Oxygen Sensor - Downstream

Overview of Walker 250-241189 Oxygen Sensor for Buick Regal and Verano

The Walker 250-241189 oxygen sensor is designed specifically for Buick Regal and Verano models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings and efficient fuel management for your vehicle.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Buick Regal and Verano models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure electrical connection
• Wiring harness length of 10.43 inches and overall length of 13.77 inches
• Wire gauge measurement of 20 for optimal signal transmission

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-241189) features a heated sensor type that allows for faster warm-up times and improved emission control. The sensor includes a 4-wire configuration, which supports both the sensor signal and heater circuit, enhancing durability and responsiveness. The radiused polygon female connector ensures a precise and secure fit, reducing the risk of electrical issues. With a wiring harness length of 10.43 inches and an overall length of 13.77 inches, this sensor is engineered to fit seamlessly in the designated mounting location on Buick Regal and Verano vehicles. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and reliable sealing.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the standards set by Buick for the Regal and Verano models. Choosing a Walker Products OE sensor helps maintain the integrity of your vehicle’s emission system and supports compliance with environmental regulations.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for optimal air-fuel mixture
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring proper catalytic converter function
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing precise sensor data to the engine control unit

Installation Notes and Tips

When installing the Walker 250-241189 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector’s radiused polygon female shape matches the vehicle harness for a secure connection. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Follow vehicle-specific service manual instructions for torque specifications and sensor location.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports long-term vehicle operation.