Walker 250-54077 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker 250-54077 Oxygen Sensor for Volvo S80 and XC90

The Walker 250-54077 oxygen sensor is designed specifically for Volvo S80 and XC90 models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Heated oxygen sensor with 4 wires for accurate readings
• Specific fit for Volvo S80 and XC90 vehicles
• 28.07-inch wiring harness length for flexible placement
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for reliable connection
• Wire gauge measurement of 20 for durability and signal integrity
• Overall length of 31.61 inches for proper fitment

Detailed Product Features and Specifications

The Walker 250-54077 oxygen sensor is a heated sensor designed to provide accurate air-fuel mixture data to the engine control unit (ECU). It includes a 28.07-inch wiring harness and four wires with a 20-gauge measurement, ensuring reliable electrical performance. The sensor’s threaded mounting type with an 18.0 mm thread diameter allows for secure installation in the exhaust system. The radiused polygon male connector ensures a precise and stable connection, reducing the risk of signal loss or disconnection. With an overall length of 31.61 inches, this sensor fits perfectly in the designated locations on Volvo S80 and XC90 models.

Walker Products OE Brand Line Information

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures that each sensor, including the 250-54077, delivers consistent performance and durability tailored to specific vehicle applications such as the Volvo S80 and XC90.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate sensor data
• Prevents engine performance issues related to faulty oxygen sensors
• Resolves check engine light triggers caused by sensor failure
• Improves fuel economy by ensuring correct sensor operation

Installation Notes and Tips

When installing the Walker 250-54077 oxygen sensor, ensure the threaded mounting is tightened to manufacturer torque specifications to avoid exhaust leaks. The radiused polygon male connector should be securely connected to prevent electrical issues. Verify the wiring harness length of 28.07 inches is sufficient for your vehicle’s routing requirements. It is recommended to inspect the sensor wiring and connector for damage before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and longevity. The 250-54077 part number undergoes rigorous testing to comply with emission control requirements for Volvo S80 and XC90 models. Warranty coverage details should be confirmed with the product documentation or supplier.