Walker 250-54009 Oxygen Sensor - Upstream

Overview of Walker 250-54009 Oxygen Sensor for Volvo S60 and V70

The Walker 250-54009 oxygen sensor is designed specifically for Volvo S60 and V70 models, providing precise emission control and engine performance monitoring. 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 S60 and V70 models
• 22.36-inch wiring harness length for flexible placement
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for reliable connection
• Overall length of 25.91 inches for proper fitment
• 20 gauge wire for durability and signal integrity

Detailed Product Description

The Walker 250-54009 oxygen sensor is engineered to meet the exact specifications of Volvo S60 and V70 vehicles. This heated sensor uses four wires to provide fast warm-up times and accurate oxygen level readings, which are critical for optimal engine management and emissions control. The sensor’s 22.36-inch wiring harness length allows for convenient routing within the engine bay, while the 18.0 mm threaded mounting ensures a secure and leak-free fit. The radiused polygon male connector is designed to match the factory harness, simplifying installation and maintaining electrical integrity. With an overall length of 25.91 inches, this sensor fits precisely in the designated location without excess slack or tension.

Walker Products OE Brand Line

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality and fitment. Walker Products OE components are designed to meet or exceed OEM standards, ensuring compatibility and reliable performance for specific vehicle applications such as the Volvo S60 and V70. Choosing a Walker Products OE sensor helps maintain factory-level emission control system operation.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce vehicle emissions by providing precise feedback to the engine control unit
• Prevents rough idling and engine hesitation caused by faulty sensors
• Supports proper catalytic converter function by monitoring exhaust gases

Installation Notes and Tips

When installing the Walker 250-54009 oxygen sensor on Volvo S60 or V70 models, ensure the engine is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector orientation matches the radiused polygon male design for a secure fit. Avoid pulling on the wiring harness; instead, handle the sensor by the base during installation. After installation, clear any diagnostic trouble codes to reset the engine control unit.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. This part number 250-54009 undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier.