HomeEmission Control > SensorsWalker 350-35160 Oxygen Sensor - Upstream Left or Upstream Right
Part #: 350-35160

Walker 350-35160 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products Aftermarket, Upstream Left
⚙️ 44 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, Upstream Left
🚗Fitment: BMW, 750i, 750i xDrive, Alpina B7, and M550i xDrive
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Overview of Walker 350-35160 Oxygen Sensor for BMW Models

The Walker 350-35160 oxygen sensor is designed specifically for select BMW vehicles, including the 550i xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, and M550i xDrive. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

  • Heated oxygen sensor type for faster response times
  • Specific fit for BMW 550i xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, and M550i xDrive
  • Wiring harness length of 35.94 inches for proper routing
  • Five-wire configuration with 20 gauge wire for reliable signal transmission
  • Female connector gender and 18mm thread diameter for secure installation
  • Overall length of 39.49 inches to accommodate vehicle-specific placement

Detailed Product Description

The Walker 350-35160 oxygen sensor is a heated sensor designed to meet the exact specifications of certain BMW models. Its five-wire design includes a heating element that allows the sensor to reach operating temperature quickly, improving emissions control efficiency. The wiring harness length of 35.94 inches and overall length of 39.49 inches provide adequate reach and flexibility for installation in the designated engine compartments. The sensor’s 18mm thread diameter and female connector ensure compatibility with the factory wiring harness and mounting points. This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on delivering reliable emission control components tailored to specific vehicle applications.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for improved engine performance
  • Helps reduce harmful emissions by ensuring proper catalytic converter function
  • Resolves check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by providing precise sensor data to the engine control unit
  • Prevents drivability issues such as rough idling or hesitation

Installation Notes and Tips

  • Ensure the vehicle is compatible: BMW 550i xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, or M550i xDrive
  • Disconnect the battery before installation to avoid electrical shorts
  • Use anti-seize compound on the sensor threads if not pre-applied
  • Verify the female connector matches the vehicle’s wiring harness
  • Follow torque specifications for the 18mm thread diameter to avoid damage

Quality Assurance and Warranty

Walker Products Aftermarket components, including the 350-35160 oxygen sensor, are manufactured to meet or exceed OEM standards for fit, form, and function. This oxygen sensor undergoes rigorous testing to ensure durability and reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number350-35160
PositionWalker Products Aftermarket, Upstream Left
Connector GenderFemale
Overall Length39.49
Sensor TypeHeated
Thread Diameter18.00
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length35.94

This part fits 44 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersFuel TypePositionNotes
2020BMWM550i xDrive4.4LV8Upstream RightOE Replacement
2019BMW750i4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2019BMW750i4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2019BMW750i4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2019BMW750i4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2019BMW750i xDrive4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2019BMW750i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2019BMW750i xDrive4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2019BMW750i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2019BMW750Li4.4LV8Upstream RightOE Replacement
2019BMW750Li xDriveSedan4.4LV8Upstream RightOE Replacement
2019BMWM550i xDrive4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2019BMWM550i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2019BMWM550i xDrive4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2019BMWM550i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2018BMW550i xDrive4.4LV8Upstream RightOE Replacement
2018BMW750i4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2018BMW750i4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2018BMW750i4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2018BMW750i4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2018BMW750i xDrive4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2018BMW750i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2018BMW750i xDrive4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2018BMW750i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2018BMW750Li4.4LV8Upstream RightOE Replacement
2018BMW750Li xDrive4.4LV8Upstream RightOE Replacement
2018BMWM550i xDrive4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2018BMWM550i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2018BMWM550i xDrive4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2018BMWM550i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2017BMW750i4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2017BMW750i4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2017BMW750i4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2017BMW750i4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2017BMW750i xDrive4.4LV8GASUpstream RightCompatible with upstream right oxygen sensor in the B1S1 position.; Walker Products Aftermarket
2017BMW750i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor before catalytic converter on left side.; Walker Products Aftermarket
2017BMW750i xDrive4.4LV8GASUpstream RightUpstream oxygen sensor for right bank position 1; Walker Products Aftermarket
2017BMW750i xDrive4.4LV8GASUpstream LeftUpstream oxygen sensor for Bank 2 Sensor 1.; Walker Products Aftermarket
2017BMW750Li4.4LV8Upstream RightOE Replacement
2017BMW750Li xDrive4.4LV8GASUpstream RightOE Replacement
2016BMW750i xDrive4.4LV8Upstream RightB1S1; OE Replacement
2016BMW750Li4.4LV8Upstream RightOE Replacement
2016BMW750Li xDrive4.4LV8Upstream RightOE Replacement
2015BMW750Li4.4LV8Upstream RightOE 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.