HomeEmission Control > SensorsWalker 350-35063 Oxygen Sensor - Upstream
Part #: 350-35063

Walker 350-35063 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
2 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: Audi, S8
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor for Audi S8

The Walker 350-35063 oxygen sensor is designed specifically for the Audi S8, 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.

  • Wiring harness length: 47.76 inches
  • Wire gauge measurement: 20 gauge
  • Heated sensor type for faster response
  • Specific fit for Audi S8 models
  • Five-wire configuration for accurate signal transmission
  • Connector shape: radiused polygon, male gender
  • Thread diameter: 18.0 mm
  • Overall length: 51.3 inches
  • Threaded mounting for secure attachment

Walker Products Aftermarket Line Details

The Walker Products Aftermarket line offers reliable emission control components designed to meet or exceed OEM specifications. This product line focuses on delivering sensors that provide accurate readings and durability, making the 350-35063 oxygen sensor a suitable replacement part for maintaining the emission system integrity of your Audi S8.

Product Description and Functionality

The Walker 350-35063 oxygen sensor is a heated sensor that uses a five-wire design to provide precise oxygen level readings to the engine control unit. Its specific fitment for the Audi S8 ensures compatibility with the vehicle’s emission system. The 18.0 mm threaded mounting allows for a secure and leak-free installation, while the radiused polygon male connector ensures a proper electrical connection. The sensor’s wiring harness length of 47.76 inches and overall length of 51.3 inches provide sufficient reach for installation without modification.

Common Applications and Issues Addressed

  • Helps resolve poor fuel economy caused by inaccurate oxygen readings
  • Addresses rough engine idle and hesitation issues
  • Reduces increased emissions due to faulty sensor signals
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports proper catalytic converter function by maintaining accurate air-fuel mixture data

Installation Notes and Tips

  • Ensure the vehicle is cool before sensor removal to avoid burns
  • Use appropriate tools for the 18.0 mm threaded sensor to prevent damage
  • Verify connector compatibility with the radiused polygon male plug on the vehicle harness
  • Do not over-tighten the sensor to avoid thread damage
  • Check wiring harness routing to prevent contact with hot or moving parts

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 350-35063 part number undergoes rigorous testing to comply with emission control requirements. Warranty details are provided by the manufacturer and typically cover defects in materials and workmanship.

BrandWalker
Part Number350-35063
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length51.3
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length47.76

This part fits 2 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2007AudiS8Base5.2LV10GASUpstreamCyl 4,5; Cil 4,5; Upstream; Walker Products Aftermarket
2007AudiS8Base5.2LV10GASUpstreamCyl 4,5; Upstream; 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.