HomeEmission Control > SensorsWalker 250-24174 Oxygen Sensor
Part #: 250-24174

Walker 250-24174 Oxygen Sensor

Walker Products OE, Downstream Right, Downstream Left, Downstream Rear, and Downstream Front
30 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream Right, Downstream Left, Downstream Rear, and Downstream Front
Fitment: Audi and Volkswagen, A4, A4 Quattro, A6, A6 Quattro, and Passat
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Reliable Oxygen Sensor for Audi and Volkswagen Vehicles

The Walker 250-24174 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A4, A4 Quattro, A6, A6 Quattro, and Passat. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

  • Heated sensor type for faster response times
  • Specific fit for Audi and Volkswagen models
  • Threaded mounting type with 18.0 mm thread diameter
  • 65.47 inches wiring harness length with 4 wires of 20 gauge
  • Radiused polygon male connector for secure connection
  • Overall length of 69.02 inches for proper installation

Walker Products OE Line Overview

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-24174 oxygen sensor is part of this line, ensuring compatibility and reliable performance for emission control systems in Audi and Volkswagen vehicles.

Detailed Product Description

This Walker oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 65.47-inch wiring harness with four 20-gauge wires, providing a robust electrical connection. Its radiused polygon male connector ensures a secure fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. The overall length of 69.02 inches accommodates proper placement within the exhaust system. This sensor is engineered specifically for Audi A4, A4 Quattro, A6, A6 Quattro, and Volkswagen Passat models, ensuring precise fitment and function.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for engine control units
  • Helps resolve rough idling and poor fuel economy
  • Reduces emissions by maintaining proper air-fuel mixture
  • Prevents check engine light related to oxygen sensor faults
  • Supports smooth engine performance and drivability

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and install the Walker 250-24174 sensor by threading it securely into place. Connect the radiused polygon male connector firmly to the vehicle’s wiring harness. Verify the wiring harness length and connector type match the vehicle’s specifications for a proper fit. After installation, clear any diagnostic trouble codes and test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet original equipment standards, providing reliable performance and durability. While specific warranty details for part number 250-24174 are not provided here, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.

BrandWalker
Part Number250-24174
PositionWalker Products OE, Downstream Right, Downstream Left, Downstream Rear, and Downstream Front
Wiring Harness Length65.47
Wire Gauge Measurement20
Sensor TypeHeated
Universal Or Specific FitSpecific
Wire Quantity4
Connector ShapeRadiused polygon
Connector GenderMale
Thread Diameter18.0
Overall Length69.02
Mounting TypeThreaded

This part fits 30 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2000VolkswagenPassat2.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2000VolkswagenPassat2.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1999AudiA42.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1999AudiA42.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1999AudiA4 Quattro2.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1999AudiA4 Quattro2.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1999AudiA62.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1999AudiA62.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1999AudiA6 Quattro2.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1999AudiA6 Quattro2.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1999VolkswagenPassat2.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
1999VolkswagenPassat2.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1998AudiA42.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1998AudiA42.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1998AudiA4 Quattro2.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1998AudiA4 Quattro2.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1998AudiA62.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1998AudiA62.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1998AudiA6 Quattro2.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1998AudiA6 Quattro2.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1998VolkswagenPassat2.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
1998VolkswagenPassat2.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
1997AudiA42.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1997AudiA42.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1997AudiA4 Quattro2.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1997AudiA4 Quattro2.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1996AudiA42.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1996AudiA42.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
1996AudiA4 Quattro2.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
1996AudiA4 Quattro2.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE

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