HomeEmission Control > SensorsWalker 250-241054 Oxygen Sensor - Downstream Left
Part #: 250-241054

Walker 250-241054 Oxygen Sensor - Downstream Left

Walker Products OE, Downstream Left
6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream Left
Fitment: Audi, A8 Quattro
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Overview of Walker 250-241054 Oxygen Sensor for Audi A8 Quattro

The Walker 250-241054 oxygen sensor is designed specifically for the Audi A8 Quattro, 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 for accurate emissions monitoring
  • Specific fit for Audi A8 Quattro models
  • 13.38-inch wiring harness length with 4 wires of 20 gauge
  • Threaded mounting with 18.0 mm thread diameter
  • Radiused polygon male connector for reliable connection
  • Overall length of 16.73 inches for proper fitment

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-241054) is engineered with a 20 gauge wire measurement and a 4-wire configuration to provide accurate and responsive feedback to the vehicle’s engine control unit. The heated sensor type allows for faster warm-up times, improving emission control during cold starts. The 13.38-inch wiring harness length and radiused polygon male connector ensure compatibility and ease of installation on the Audi A8 Quattro. The threaded mounting type with an 18.0 mm thread diameter secures the sensor firmly in place, maintaining proper sensor positioning and function.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, providing a direct replacement solution designed to maintain the emission control system’s integrity on the Audi A8 Quattro. Walker Products OE parts are engineered for durability and precise fitment, supporting vehicle performance and compliance with emission standards.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for improved fuel efficiency
  • Resolves check engine light issues related to oxygen sensor faults
  • Helps correct rough idling or engine hesitation caused by faulty sensors
  • Supports emission system compliance by providing reliable sensor data
  • Prevents increased exhaust emissions due to sensor malfunction

Installation Notes and Tips

When installing the Walker 250-241054 oxygen sensor on an Audi A8 Quattro, 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. Connect the radiused polygon male connector securely to the vehicle’s wiring harness, verifying the 4-wire configuration matches the original sensor. Proper torque specifications should be followed to avoid damage to the sensor or mounting threads.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-241054 undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.

BrandWalker
Part Number250-241054
PositionWalker Products OE, Downstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.73
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length13.38

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2017AudiA8 Quattro3.0LV6GASDownstream LeftDownstream left oxygen sensor for bank 2 sensor 2; Walker Products OE
2017AudiA8 Quattro3.0LV6GASDownstream LeftBank 2, sensor 2 downstream oxygen sensor; Walker Products OE
2016AudiA8 Quattro3.0LV6GASDownstream LeftDownstream left oxygen sensor for bank 2 sensor 2; Walker Products OE
2016AudiA8 Quattro3.0LV6GASDownstream LeftBank 2, sensor 2 downstream oxygen sensor; Walker Products OE
2015AudiA8 Quattro3.0LV6GASDownstream LeftDownstream left oxygen sensor for bank 2 sensor 2; Walker Products OE
2015AudiA8 Quattro3.0LV6GASDownstream LeftBank 2, sensor 2 downstream oxygen sensor; Walker Products OE

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.