HomeEmission Control > SensorsWalker 350-35013 Oxygen Sensor
Part #: 350-35013

Walker 350-35013 Oxygen Sensor

Walker Products Aftermarket, Upstream Left
⚙️ 62 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$126.32Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products Aftermarket, Upstream Left
🚗Fitment: Audi and Cadillac, S5, CTS, S6, STS, and SRX
🔄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 350-35013

The Walker 350-35013 oxygen sensor is designed specifically for select Audi and Cadillac models, including the Audi S5 and S6, and Cadillac CTS, SRX, and STS. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

  • Heated oxygen sensor for faster response times
  • Specific fit for Audi S5, S6 and Cadillac CTS, SRX, STS models
  • Threaded mounting type with 18.0 mm thread diameter
  • 13.31-inch wiring harness length with 5 wires of 20 gauge
  • Radiused polygon male connector for secure connection
  • Overall length of 16.85 inches for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-35013) features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency. The sensor is designed with a threaded mounting type and an 18.0 mm thread diameter, ensuring a secure and precise installation. The wiring harness length of 13.31 inches and 5-wire configuration with 20 gauge wire supports reliable electrical connectivity. The radiused polygon male connector shape provides a secure and stable connection to the vehicle’s wiring harness. This sensor is a specific fit for Audi S5 and S6 models as well as Cadillac CTS, SRX, and STS, ensuring compatibility and proper function.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing reliable emission control components designed to meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct replacement solution engineered for specific vehicle applications. The product line emphasizes quality construction and precise fitment to support vehicle emissions systems effectively.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for engine control units
  • Helps resolve rough idling and poor fuel economy caused by faulty sensors
  • Reduces emissions by ensuring proper catalytic converter function
  • Eliminates check engine light codes related to oxygen sensor failure
  • Improves overall engine performance and drivability

Installation Notes and Tips

When installing the Walker 350-35013 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector matches the radiused polygon male shape for a secure fit. Follow vehicle-specific torque specifications to avoid damage. It is advisable to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-35013 should be confirmed with the supplier, Walker typically offers limited warranties covering defects in materials and workmanship. This ensures confidence in the sensor’s durability and performance for Audi and Cadillac applications.

BrandWalker
Part Number350-35013
PositionWalker Products Aftermarket, Upstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.85
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length13.31

This part fits 62 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersFuel TypePositionNotes
2012AudiS54.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2012AudiS54.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2011AudiS54.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2011AudiS54.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2010AudiS54.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2010AudiS54.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2009AudiA53.2LV6UpstreamOE Replacement
2009AudiS54.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2009AudiS54.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2008AudiS54.2LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2008AudiS54.2LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2008CadillacCTSBaseManual3.6LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2008CadillacCTSBaseManual3.6LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2008CadillacCTSBaseAutomatic3.6LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2008CadillacCTSBaseAutomatic3.6LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2008CadillacCTSManual3.6LV6GASUpstream Rightw/o Direct Injection; Sin inyección directa; Upstream; Right; Walker Products Aftermarket
2008CadillacCTSManual3.6LV6GASUpstream Leftw/o Direct Injection; Sin inyección directa; Upstream; Left; Walker Products Aftermarket
2008CadillacCTSAutomatic3.6LV6GASUpstream Rightw/o Direct Injection; Sin inyección directa; Upstream; Right; Walker Products Aftermarket
2008CadillacCTSAutomatic3.6LV6GASUpstream Leftw/o Direct Injection; Sin inyección directa; Upstream; Left; Walker Products Aftermarket
2008CadillacCTSManual3.6LV6GASUpstream Rightw/o Direct Injection; Upstream; Right; Walker Products Aftermarket
2008CadillacCTSManual3.6LV6GASUpstream Leftw/o Direct Injection; Upstream; Left; Walker Products Aftermarket
2008CadillacCTSAutomatic3.6LV6GASUpstream Rightw/o Direct Injection; Upstream; Right; Walker Products Aftermarket
2008CadillacCTSAutomatic3.6LV6GASUpstream Leftw/o Direct Injection; Upstream; Left; Walker Products Aftermarket
2007AudiS65.2LV10GASUpstreamOxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products Aftermarket
2007CadillacCTSBase3.6LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2007CadillacCTSBase3.6LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2007CadillacCTS2.8LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2007CadillacCTS2.8LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2007CadillacSTS3.6LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2007CadillacSTS3.6LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2006CadillacCTS3.6LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2006CadillacCTS3.6LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2006CadillacCTS2.8LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2006CadillacCTS2.8LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2006CadillacSRX3.6LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket
2006CadillacSRX3.6LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket
2006CadillacSTS3.6LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2006CadillacSTS3.6LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2005CadillacCTS3.6LV6GASUpstream Right2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Right; Walker Products Aftermarket
2005CadillacCTS3.6LV6GASUpstream Left2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Left; Walker Products Aftermarket
2005CadillacCTS2.8LV6GASUpstream Right2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Right; Walker Products Aftermarket
2005CadillacCTS2.8LV6GASUpstream Left2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Left; Walker Products Aftermarket
2005CadillacCTS3.6LV6GASUpstream Right2nd Design - Oval Connector; Upstream; Right; Walker Products Aftermarket
2005CadillacCTS3.6LV6GASUpstream Left2nd Design - Oval Connector; Upstream; Left; Walker Products Aftermarket
2005CadillacCTS2.8LV6GASUpstream Right2nd Design - Oval Connector; Upstream; Right; Walker Products Aftermarket
2005CadillacCTS2.8LV6GASUpstream Left2nd Design - Oval Connector; Upstream; Left; Walker Products Aftermarket
2005CadillacSRX4.6LV8GASUpstream Rear2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Rear; Walker Products Aftermarket
2005CadillacSRX4.6LV8GASUpstream Front2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Front; Walker Products Aftermarket
2005CadillacSRX3.6LV6GASUpstream Rear2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Rear; Walker Products Aftermarket
2005CadillacSRX3.6LV6GASUpstream Front2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Front; Walker Products Aftermarket
2005CadillacSRX4.6LV8GASUpstream Rear2nd Design - Oval Connector; Upstream; Rear; Walker Products Aftermarket
2005CadillacSRX4.6LV8GASUpstream Front2nd Design - Oval Connector; Upstream; Front; Walker Products Aftermarket
2005CadillacSRX3.6LV6GASUpstream Rear2nd Design - Oval Connector; Upstream; Rear; Walker Products Aftermarket
2005CadillacSRX3.6LV6GASUpstream Front2nd Design - Oval Connector; Upstream; Front; Walker Products Aftermarket
2005CadillacSTS4.6LV8GASUpstream Right2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Right; Walker Products Aftermarket
2005CadillacSTS4.6LV8GASUpstream Left2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Left; Walker Products Aftermarket
2005CadillacSTS3.6LV6GASUpstream Right2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Right; Walker Products Aftermarket
2005CadillacSTS3.6LV6GASUpstream Left2nd Design - Oval Connector; 2do diseño - Conector Ovalado; Upstream; Left; Walker Products Aftermarket
2005CadillacSTS4.6LV8GASUpstream Right2nd Design - Oval Connector; Upstream; Right; Walker Products Aftermarket
2005CadillacSTS4.6LV8GASUpstream Left2nd Design - Oval Connector; Upstream; Left; Walker Products Aftermarket
2005CadillacSTS3.6LV6GASUpstream Right2nd Design - Oval Connector; Upstream; Right; Walker Products Aftermarket
2005CadillacSTS3.6LV6GASUpstream Left2nd Design - Oval Connector; Upstream; Left; 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.