Walker 350-34638 Oxygen Sensor

Overview of Walker Oxygen Sensor 350-34638

The Walker 350-34638 oxygen sensor is designed specifically for select Land Rover models, including the Defender 90, Discovery, and Range Rover. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for Land Rover Defender 90, Discovery, and Range Rover
• 18.43-inch wiring harness length for proper installation
• 20 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 12.0 mm thread diameter
• Overall length of 21.97 inches for correct positioning

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34638) is engineered to meet the exact specifications of your Land Rover Defender 90, Discovery, and Range Rover. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for efficient fuel combustion and emissions control. The sensor includes a 4-wire configuration with 20 gauge wiring, ensuring stable electrical signals and compatibility with the vehicle’s engine management system. The radiused polygon male connector and threaded mounting type with a 12.0 mm thread diameter allow for a secure and precise fit, reducing the risk of leaks or sensor failure. With an overall length of 21.97 inches and an 18.43-inch wiring harness, this sensor is designed for straightforward installation and reliable operation.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct fit solution for Land Rover vehicles that require precise sensor performance and durability. The product line emphasizes compatibility and quality to support vehicle emissions compliance and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine performance
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports smooth acceleration and engine responsiveness

Installation Notes and Tips

When installing the Walker 350-34638 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the radiused polygon male connector aligns properly with the vehicle’s wiring harness. Thread the sensor carefully into the mounting hole with the specified 12.0 mm diameter to prevent cross-threading. Confirm all connections are secure before starting the engine.

Quality Assurance

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. This sensor is designed to maintain emissions compliance and support long-term vehicle operation.