Walker 250-54026 Oxygen Sensor - Upstream or Upstream Left

Overview of Walker 250-54026 Oxygen Sensor for Volvo Vehicles

The Walker 250-54026 oxygen sensor is designed specifically for select Volvo models including the S40, S60, S80, V50, and V70. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine control unit.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Volvo S40, S60, S80, V50, and V70 models
• Threaded mounting type with 18.0 mm thread diameter
• 25.12 inches wiring harness length and 20 gauge wire measurement
• Radiused polygon male connector for secure electrical connection
• Overall length of 28.66 inches for proper installation depth

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-54026) is engineered with a heated sensor element to provide faster response times and improved emissions control. The 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring reliable operation under various engine conditions. The sensor’s 18.0 mm threaded mounting allows for a secure and precise fit in the exhaust system. The wiring harness length of 25.12 inches and 20 gauge wire size provide durability and ease of routing during installation. The radiused polygon male connector is designed to match the original equipment specifications, ensuring compatibility and a stable electrical connection.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering direct replacement parts that meet original equipment specifications. This oxygen sensor is part of that line, offering a precise fit and function for Volvo vehicles. Walker Products OE parts are designed to maintain factory performance and emissions standards, making them suitable for professional repairs and maintenance.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by providing correct air-fuel mixture data
• Prevents engine performance problems caused by faulty sensors
• Ensures proper operation of the vehicle’s emission control system

Installation Notes and Tips

When installing the Walker 250-54026 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Carefully connect the radiused polygon male connector to the vehicle’s wiring harness, verifying a secure fit. Follow torque specifications for the sensor to avoid damage. This sensor is designed for specific Volvo models, so confirm compatibility before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed original equipment standards. Each sensor undergoes rigorous testing to ensure durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the product’s reliability for Volvo S40, S60, S80, V50, and V70 applications.