Walker 250-54072 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker 250-54072 Oxygen Sensor for Land Rover

The Walker 250-54072 oxygen sensor is designed specifically for Land Rover models including the LR4, Range Rover, and Range Rover Sport. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Heated oxygen sensor type for faster response times
• Specific fit for Land Rover LR4, Range Rover, and Range Rover Sport
• Threaded mounting type with 18.0 mm thread diameter
• 8.39-inch wiring harness length with 4 wires of 20 gauge
• Radiused polygon male connector for secure electrical connection
• Overall length of 11.93 inches for proper installation depth

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-54072) is engineered with a heated sensor element to reduce warm-up time, improving emissions control efficiency shortly after engine start. The sensor includes a 4-wire configuration with 20 gauge wiring, providing reliable signal transmission and heater power. The wiring harness length of 8.39 inches allows for proper routing within the engine bay, while the radiused polygon male connector ensures a secure and precise fit with the vehicle’s wiring harness. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of Land Rover LR4, Range Rover, and Range Rover Sport models.

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This product line is designed to provide consistent performance and durability, making it a suitable replacement part for maintaining factory-level emissions control and engine efficiency.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture adjustment
• Helps resolve rough idling and poor engine performance issues
• Addresses increased emissions and failed emissions tests
• Eliminates check engine light codes related to oxygen sensor faults
• Improves fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

When installing the Walker 250-54072 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use appropriate tools to avoid damaging the sensor or connector. The radiused polygon male connector should be securely connected to the vehicle’s wiring harness to prevent electrical issues. Verify the wiring harness length and routing to avoid contact with hot or moving engine components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and OEM specifications. This ensures reliable performance and durability under normal operating conditions. While specific warranty details are not provided here, Walker typically offers coverage consistent with industry standards for emission control sensors.