HomeEmission Control > SensorsWalker 350-34071 Oxygen Sensor - Downstream, Downstream Left or Downstream Right
Part #: 350-34071

Walker 350-34071 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker Products Aftermarket, Downstream Right
⚙️ 19 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products Aftermarket, Downstream Right
🚗Fitment: Porsche and Audi, Cayenne and S6
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 350-34071 Oxygen Sensor

The Walker 350-34071 oxygen sensor is designed specifically for select Audi and Porsche models, including the Audi S6 and Porsche Cayenne. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

  • Heated oxygen sensor with threaded mounting
  • 31.02-inch wiring harness length for flexible installation
  • 22-gauge wire measurement with 4 wires for reliable signal transmission
  • Radiused polygon male connector for secure fit
  • 18.0 mm thread diameter and 34.57-inch overall length
  • Specific fit for Audi S6 and Porsche Cayenne models

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34071) is engineered to meet the exact specifications of your vehicle’s emission system. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The sensor’s 31.02-inch wiring harness and 22-gauge wires ensure proper connectivity and signal integrity. The radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter allow for a secure and precise installation. With an overall length of 34.57 inches, this sensor fits perfectly in the designated location on Audi S6 and Porsche Cayenne models.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, providing a direct replacement solution designed for specific vehicle applications. The product line emphasizes durability and compatibility, ensuring that the sensor integrates seamlessly with your vehicle’s existing systems.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for improved engine efficiency
  • Helps resolve check engine light triggers related to oxygen sensor faults
  • Reduces emissions by ensuring proper catalytic converter function
  • Prevents rough idling and poor fuel economy caused by faulty sensors
  • Supports compliance with emission regulations for Audi S6 and Porsche Cayenne

Installation Notes and Tips

Before installation, verify compatibility with your specific Audi S6 or Porsche Cayenne model year. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. The 31.02-inch wiring harness length provides flexibility during installation, but ensure the connector is securely attached to prevent signal loss. Thread the sensor carefully into the exhaust manifold or pipe to avoid cross-threading. It is recommended to apply anti-seize compound on the threads if not pre-applied.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-34071 sensor undergoes rigorous testing to ensure durability and performance under various operating conditions. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.

BrandWalker
Part Number350-34071
PositionWalker Products Aftermarket, Downstream Right
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length34.57
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement22
Wire Quantity4
Wiring Harness Length31.02

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2018PorscheCayennePlatinum Edition3.6LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2018PorscheCayenneBase3.6LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2017PorscheCayennePlatinum Edition3.6LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2017PorscheCayenneBase3.6LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2016PorscheCayenneBase3.6LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2014PorscheCayenne3.6LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2013PorscheCayenne3.6LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2012PorscheCayenne3.6LV6DownstreamDownstream oxygen sensor compatible with cylinders 4-6.; Walker Products Aftermarket
2011AudiS65.2LV10GASDownstreamCyl 9,10; Cil 9,10; Downstream; Walker Products Aftermarket
2011AudiS65.2LV10GASDownstreamCyl 9,10; Downstream; Walker Products Aftermarket
2011PorscheCayenne3.6LV6DownstreamDownstream oxygen sensor compatible with cylinders 4-6.; Walker Products Aftermarket
2010AudiS65.2LV10GASDownstreamCyl 9,10; Cil 9,10; Downstream; Walker Products Aftermarket
2010AudiS65.2LV10GASDownstreamCyl 9,10; Downstream; Walker Products Aftermarket
2009AudiS65.2LV10GASDownstreamCyl 9,10; Cil 9,10; Downstream; Walker Products Aftermarket
2009AudiS65.2LV10GASDownstreamCyl 9,10; Downstream; Walker Products Aftermarket
2008AudiS65.2LV10GASDownstreamCyl 9,10; Cil 9,10; Downstream; Walker Products Aftermarket
2008AudiS65.2LV10GASDownstreamCyl 9,10; Downstream; Walker Products Aftermarket
2007AudiS65.2LV10GASDownstreamCyl 9,10; Cil 9,10; Downstream; Walker Products Aftermarket
2007AudiS65.2LV10GASDownstreamCyl 9,10; Downstream; Walker Products Aftermarket

* 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.