Walker 250-54121 Oxygen Sensor - Center or Upstream

Overview of Walker OE Base Sensor 250-54121

The Walker OE Base Sensor 250-54121 is a heated wide-band oxygen sensor designed specifically for select Jaguar and Land Rover models. Engineered to provide accurate air-fuel mixture readings, this sensor supports optimal engine performance and emission control.

• Heated wide-band oxygen sensor for precise air-fuel ratio monitoring
• Specific fit for Jaguar and Land Rover vehicles including Discovery, F-Pace, Range Rover Velar, XE, and XF
• Four-wire design with blade terminal type and oblong female connector
• Thread size M18 - 1.5 with 22mm wrench size for installation
• OE Base Sensor product line ensuring compatibility and quality

Detailed Product Features and Specifications

This oxygen sensor features a heated element to quickly reach operating temperature, improving sensor response time and reducing emissions during cold starts. The wide-band sensor type allows for a broader and more accurate measurement of oxygen levels in the exhaust gases compared to narrow-band sensors. It includes four wires with male terminals and a female oblong connector, ensuring a secure and reliable electrical connection. The sensor is designed with a specific fitment in mind, compatible with Jaguar and Land Rover models such as the Discovery, F-Pace, Range Rover Velar, XE, and XF. The thread size is M18 - 1.5, and a 22mm wrench is required for installation.

About the Walker OE Base Sensor Product Line

The OE Base Sensor line by Walker focuses on providing original equipment quality sensors that meet or exceed factory specifications. This product line is tailored to deliver precise sensor performance and durability, making it suitable for direct replacement in specific vehicle applications. The 250-54121 sensor is part of this line, ensuring it matches the exact requirements of Jaguar and Land Rover emission systems.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by maintaining proper air-fuel mixture control
• Eliminates check engine light triggers caused by sensor failure
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Walker OE Base Sensor 250-54121, ensure the vehicle is compatible with the sensor’s specific fitment for Jaguar and Land Rover models listed. Use a 22mm wrench to remove and install the sensor securely. Verify the four-wire blade terminal connections and the oblong female connector are properly seated to avoid electrical issues. It is recommended to inspect the sensor wiring harness for damage before installation.

Quality Assurance and Warranty

Walker OE Base Sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Walker products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.