HomeEmission Control > SensorsWalker 350-35020 Oxygen Sensor - Upstream
Part #: 350-35020

Walker 350-35020 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
2 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, Upstream
Fitment: Audi, S6
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 350-35020 for Audi S6

The Walker 350-35020 oxygen sensor is designed specifically for the Audi S6, 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 S6 models
  • 33.98-inch wiring harness length for flexible placement
  • 20 gauge wire with 5-wire configuration for reliable signal transmission
  • Threaded mounting with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Overall length of 37.52 inches for proper fitment

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM specifications. The line emphasizes precise fitment and durability, making it suitable for maintaining factory-level performance in vehicles like the Audi S6.

Product Features and Specifications

The Walker 350-35020 oxygen sensor is a heated sensor designed to provide quick response times and accurate readings of exhaust oxygen levels. Its 5-wire configuration and 20 gauge wire ensure consistent electrical performance. The sensor’s 33.98-inch wiring harness and 37.52-inch overall length allow for proper routing and installation in the Audi S6’s exhaust system. The radiused polygon male connector and threaded mounting with an 18.0 mm diameter provide a secure and reliable fit, reducing the risk of leaks or connection issues.

Common Applications and Problem Resolution

  • Helps resolve engine performance issues related to incorrect air-fuel mixture
  • Addresses emission control failures and check engine light triggers
  • Improves fuel efficiency by providing accurate oxygen level data
  • Prevents catalytic converter damage caused by faulty sensor readings
  • Supports compliance with emission regulations for Audi S6 vehicles

Installation Notes and Tips

When installing the Walker 350-35020 oxygen sensor on an Audi S6, ensure the threaded mounting is properly tightened to the manufacturer’s torque specifications to avoid exhaust leaks. Verify the connector’s radiused polygon shape matches the vehicle harness for a secure connection. Handle the sensor wiring carefully to prevent damage to the 20 gauge wires. It is recommended to replace the sensor when the engine is cool to avoid burns and to use anti-seize compound on the threads if specified by the vehicle manufacturer.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 350-35020 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary.

BrandWalker
Part Number350-35020
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length37.52
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length33.98

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2007AudiS65.2LV10GASUpstreamCyl 9,10; Cil 9,10; Upstream; Walker Products Aftermarket
2007AudiS65.2LV10GASUpstreamCyl 9,10; 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.