Walker 250-23802 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker 250-23802 Oxygen Sensor for Land Rover

The Walker 250-23802 oxygen sensor is designed specifically for select Land Rover models, including the Defender 110, Discovery, and Range Rover. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Land Rover Defender 110, Discovery, and Range Rover
• 18.03-inch wiring harness length for flexible installation
• Threaded mounting type with 12.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 21.57 inches for proper fitment

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-23802) is engineered to meet the exact specifications required by Land Rover vehicles such as the Defender 110, Discovery, and Range Rover. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for efficient fuel management and emissions control. The sensor includes a 3-wire design with a 20-gauge wire measurement, ensuring consistent electrical performance. Its 18.03-inch wiring harness length and 21.57-inch overall length allow for proper routing and installation within the vehicle’s exhaust system. The threaded mounting type with a 12.0 mm diameter and radiused polygon male connector ensures a secure and precise fit, reducing the risk of leaks or connection issues.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of that line, providing a direct replacement solution designed to maintain factory performance and compliance with emissions standards for Land Rover vehicles. The OE designation indicates that this sensor matches the fit, form, and function of the original part installed by the manufacturer.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring correct catalytic converter operation
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing precise exhaust gas data

Installation Notes and Tips

When installing the Walker 250-23802 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector shape and gender match the vehicle’s harness for a secure connection. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. It is recommended to inspect the exhaust system for leaks or damage during installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part is designed to provide consistent operation under normal driving conditions. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.