Walker 250-25081 Oxygen Sensor - Upstream Left

Overview of Walker Products OE Oxygen Sensor 250-25081

The Walker Products OE Oxygen Sensor 250-25081 is designed specifically for Audi Q7 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 Audi Q7 vehicles
• 48.74 inches 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 52.28 inches for proper fitment

Detailed Product Description

The Walker Products OE line focuses on providing original equipment quality parts that meet or exceed OEM specifications. The 250-25081 oxygen sensor is a heated sensor designed to deliver accurate air-fuel mixture readings to the engine control unit. Its 5-wire design enhances signal accuracy and sensor responsiveness, which is critical for maintaining emissions compliance and fuel efficiency in Audi Q7 vehicles. The sensor’s wiring harness length of 48.74 inches and overall length of 52.28 inches allow for proper routing and installation without strain. The radiused polygon male connector ensures a secure and precise electrical connection, while the 18.0 mm threaded mounting type provides a stable and leak-free fit.

Compatible Vehicles and Applications

• Compatible with Audi Q7 models requiring a specific heated oxygen sensor
• Used in emission control systems to monitor exhaust gases
• Helps maintain optimal engine performance and reduce harmful emissions
• Replaces faulty or worn oxygen sensors to restore proper engine function

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate tools for the 18.0 mm threaded sensor to prevent damage
• Verify connector type matches the vehicle harness (radiused polygon male)
• Route wiring harness carefully to avoid contact with hot or moving parts
• Check for proper sensor seating and torque to manufacturer specifications

Quality Assurance and Warranty

Walker Products OE parts are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 250-25081 oxygen sensor undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in the product’s longevity and function.