Walker 250-25011 Oxygen Sensor - Upstream or Upstream Left

Overview of Walker 250-25011 Oxygen Sensor for Volvo S80 and XC90

The Walker 250-25011 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 5-wire configuration
• Specific fit for Volvo S80 and XC90 vehicles
• Threaded mounting with 18.0 mm thread diameter
• Connector features a radiused polygon shape and male gender
• Wiring harness length of 49.13 inches and overall length of 52.68 inches
• Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-25011) is engineered to meet the exact specifications required by Volvo S80 and XC90 models. The sensor’s heated design allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 5-wire setup supports accurate data transmission to the vehicle’s engine control unit (ECU). The radiused polygon male connector ensures a secure and precise electrical connection, while the 18.0 mm threaded mounting type provides a stable fit in the exhaust system. With a wiring harness length of 49.13 inches and an overall length of 52.68 inches, this sensor is designed for straightforward installation without the need for modifications.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed components. Choosing a Walker Products OE sensor like the 250-25011 helps maintain the integrity of your Volvo’s emission control system.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for improved fuel management
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces rough idling and engine hesitation caused by faulty sensors
• Supports emission system compliance by maintaining proper exhaust gas monitoring
• Prevents increased fuel consumption due to incorrect air-fuel mixture data

Installation Notes and Tips

When installing the Walker 250-25011 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector’s radiused polygon shape and male gender match the vehicle’s wiring harness for a secure fit. Avoid twisting or stretching the wiring harness beyond its 49.13-inch length to maintain sensor integrity.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 250-25011 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to ensure reliable long-term performance.