Walker 250-24753 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker Products OE Oxygen Sensor 250-24753

The Walker Products OE Oxygen Sensor 250-24753 is designed specifically for select Audi models, including the A4 Quattro, A5 Quattro, A6 Quattro, A7 Quattro, A8 Quattro, Q5, S4, S5, and SQ5. This heated oxygen sensor provides precise emissions control and engine performance monitoring through its advanced design and fitment.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Audi Quattro models
• 18.23-inch wiring harness length for optimal installation
• 20 gauge wire for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 21.77 inches for proper placement

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24753) is engineered to meet the exact specifications required by Audi Quattro vehicles. Featuring a heated sensor type, it ensures faster warm-up times and accurate oxygen level readings, which are critical for maintaining efficient fuel combustion and reducing emissions. The sensor includes a 4-wire setup with 20 gauge wiring, providing stable electrical signals to the engine control unit. Its radiused polygon male connector and threaded mounting type with an 18.0 mm diameter allow for a secure and precise fit, minimizing installation issues and ensuring consistent performance.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that match or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and reliability for Audi vehicles. The OE designation indicates that this sensor is designed to integrate seamlessly with the vehicle’s existing emission control system, supporting proper engine management and emissions compliance.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Audi Quattro models
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level data to the ECU
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by maintaining optimal combustion conditions

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-24753, ensure the vehicle is cooled down to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. The 18.23-inch wiring harness length provides flexibility during installation, but verify connector compatibility with the radiused polygon male connector. Thread the sensor carefully into the mounting hole with the 18.0 mm thread diameter to prevent cross-threading. It is recommended to apply anti-seize compound on the threads if not pre-applied.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details for part number 250-24753 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This sensor supports compliance with emissions regulations and is tested for fitment accuracy on compatible Audi models.