HomeEmission Control > SensorsWalker 350-34248 Oxygen Sensor - Downstream Left or Downstream Right
Part #: 350-34248

Walker 350-34248 Oxygen Sensor - Downstream Left or Downstream Right

Walker Products Aftermarket, Downstream Left
33 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 Aftermarket, Downstream Left
Fitment: Porsche, Cayenne
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Overview of Walker 350-34248 Oxygen Sensor

The Walker 350-34248 oxygen sensor is designed specifically for Chevrolet Astra and Porsche Cayenne models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Wiring harness length: 29.06 inches
  • Wire gauge measurement: 22 gauge
  • Heated sensor type for faster response
  • Specific fit for Chevrolet Astra and Porsche Cayenne
  • Four-wire configuration with radiused polygon female connector
  • Thread diameter: 18.0 mm with threaded mounting
  • Overall length: 32.6 inches

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The line emphasizes precise fitment and quality construction to meet or exceed OEM standards, ensuring compatibility and durability for Chevrolet Astra and Porsche Cayenne vehicles.

Product Features and Specifications

The Walker 350-34248 oxygen sensor features a heated sensor element that allows for quicker activation and improved fuel efficiency. Its four-wire design includes a radiused polygon female connector, ensuring secure and proper electrical connections. The sensor’s 18.0 mm threaded mounting type facilitates straightforward installation and a tight seal within the exhaust system. With a wiring harness length of 29.06 inches and an overall length of 32.6 inches, this sensor is engineered for precise fitment in the specified vehicle models.

Common Applications and Problem Resolution

  • Helps maintain proper air-fuel mixture for Chevrolet Astra and Porsche Cayenne
  • Reduces emissions by accurately monitoring oxygen levels in exhaust gases
  • Addresses engine performance issues related to faulty oxygen sensors
  • Prevents check engine light triggers caused by sensor malfunctions
  • Improves fuel economy by providing accurate feedback to the engine control unit

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 350-34248 oxygen sensor by threading it securely into place. Confirm the four-wire connector matches the vehicle’s harness and connects firmly. Avoid over-tightening the sensor to prevent damage to the threads. After installation, clear any diagnostic trouble codes and verify sensor operation through a scan tool.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-34248 part number undergoes rigorous testing to ensure durability and reliable performance in Chevrolet Astra and Porsche Cayenne vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number350-34248
PositionWalker Products Aftermarket, Downstream Left
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length32.6
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement22
Wire Quantity4
Wiring Harness Length29.06

This part fits 33 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersFuel TypePositionNotes
2018PorscheCayenneTurbo4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2018PorscheCayenneTurbo4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2018PorscheCayenneTurbo S4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2018PorscheCayenneTurbo S4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2017PorscheCayenneTurbo4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2017PorscheCayenneTurbo4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2017PorscheCayenneTurbo S4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2017PorscheCayenneTurbo S4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2016PorscheCayenneTurbo4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2016PorscheCayenneTurbo4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2016PorscheCayenneTurbo S4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2016PorscheCayenneTurbo S4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2015PorscheCayenneTurbo4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2015PorscheCayenneTurbo4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2014PorscheCayenneTurbo4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2014PorscheCayenneTurbo4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2014PorscheCayenneTurbo S4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2014PorscheCayenneTurbo S4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2014PorscheCayenneS4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2014PorscheCayenneS4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2014PorscheCayenneGTS4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2014PorscheCayenneGTS4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2013PorscheCayenne4.8LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2013PorscheCayenne4.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2013PorscheCayenne4.8LV8Downstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2013PorscheCayenne4.8LV8Downstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2012PorscheCayenne4.8LV8Downstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2012PorscheCayenne4.8LV8Downstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2011PorscheCayenne4.8LV8Downstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2011PorscheCayenne4.8LV8Downstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2003ChevroletAstraAutomatic2.2LL4UpstreamOE Replacement
2002ChevroletAstraAutomatic2.2LL4UpstreamOE Replacement
2001ChevroletAstraAutomatic2.2LL4UpstreamOE Replacement

* 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.