Walker 250-24146 Oxygen Sensor - Downstream or Upstream

Overview of Walker 250-24146 Oxygen Sensor

The Walker 250-24146 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A4, A4 Quattro, Cabrio, Golf, Jetta, and Passat. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Audi and Volkswagen vehicles
• 42.44-inch wiring harness length for precise installation
• 20 gauge wire with 4-wire configuration
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 45.98 inches for proper fitment

Detailed Product Description

The Walker 250-24146 oxygen sensor is engineered to meet the exact specifications of certain Audi and Volkswagen models, ensuring compatibility and reliable performance. Featuring a heated sensor element, it provides quicker warm-up times compared to non-heated sensors, which helps reduce emissions during cold starts. The sensor includes a 42.44-inch wiring harness with 20 gauge wires arranged in a 4-wire configuration, allowing for accurate signal transmission and heater control. Its radiused polygon male connector ensures a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. The overall length of 45.98 inches accommodates the sensor’s placement within the exhaust system without strain on the wiring.

Walker Products OE Brand Line

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line emphasizes precise fitment and reliable function, making it suitable for professional repairs and maintenance on vehicles like Audi and Volkswagen models. Using parts from this line helps maintain vehicle emissions compliance and engine efficiency.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for engine control units
• Helps resolve rough idling and engine hesitation
• Reduces increased emissions and failed emissions tests
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring accurate sensor feedback

Installation Notes and Tips

When installing the Walker 250-24146 oxygen sensor, ensure the vehicle is compatible with this specific part number. The threaded mounting type requires proper torque to avoid damage to the sensor or exhaust manifold. The 4-wire heated sensor design includes separate wires for the heater circuit and signal output; verify wiring connections match the vehicle’s harness. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to facilitate future removal. Always disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. The 250-24146 part number is manufactured to provide consistent sensor response and long service life. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, supporting professional repair confidence.