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Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream LeftOE Quality 60-Day Returns
Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left - view 1
Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left - view 2
Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left - view 3
Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left - view 4
Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left - view 5
Part #: 350-35139

Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left

OE Replacement, Upstream Left and Upstream Front
⚙️ 29 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$134.56Free 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.
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Replacement, Upstream Left and Upstream Front
🚗Fitment: Audi, Porsche, and Volkswagen, Atlas, Atlas Cross Sport, Panamera, RS6 Avant, RS7 Sportback, and Teramont
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Walker 350-35139 Oxygen Sensor - Upstream Front or Upstream Left
BrandWalker
Part Number350-35139
PositionOE Replacement, Upstream Left and Upstream Front
HeatedYes
Sensor TypeWide-band
Terminal TypeSpade
Universal Or Specific FitSpecific
Wire Quantity5
Connector ShapeRectangular
Terminal GenderMale
Wrench Size22
Thread SizeM18 - 1.5
Overall Length925
Mounting TypeThreaded

This part fits 29 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2026AudiRS6 Avant4.0LV8Upstream LeftOE Replacement
2026AudiRS7 Sportback4.0LV8Upstream LeftOE Replacement
2025AudiRS6 Avant4.0LV8Upstream LeftOE Replacement
2025AudiRS7 Sportback4.0LV8Upstream LeftOE Replacement
2024AudiRS6 Avant4.0LV8Upstream LeftOE Replacement
2024AudiRS7 Sportback4.0LV8Upstream LeftOE Replacement
2023AudiRS6 Avant4.0LV8Upstream LeftOE Replacement
2023AudiRS7 Sportback4.0LV8Upstream LeftOE Replacement
2023VolkswagenAtlas3.6LV6Upstream FrontOE Replacement
2023VolkswagenAtlas Cross Sport3.6LV6Upstream FrontOE Replacement
2023VolkswagenTeramont3.6LV6Upstream LeftOE Replacement
2022AudiRS6 Avant4.0LV8Upstream LeftOE Replacement
2022AudiRS7 Sportback4.0LV8Upstream LeftOE Replacement
2022VolkswagenAtlas3.6LV6Upstream FrontOE Replacement
2022VolkswagenAtlas Cross Sport3.6LV6Upstream FrontOE Replacement
2022VolkswagenTeramont3.6LV6Upstream LeftOE Replacement
2021AudiRS6 Avant4.0LV8Upstream LeftOE Replacement
2021AudiRS7 Sportback4.0LV8Upstream LeftOE Replacement
2021VolkswagenAtlas3.6LV6GASUpstream LeftOE Replacement
2021VolkswagenAtlas Cross Sport3.6LV6GASUpstream LeftOE Replacement
2021VolkswagenTeramont3.6LV6Upstream LeftOE Replacement
2020VolkswagenAtlas3.6LV6GASUpstream LeftOE Replacement
2020VolkswagenAtlas Cross Sport3.6LV6GASUpstream LeftOE Replacement
2019PorschePanamera4.0LV8Upstream LeftTo 09/16/2018; OE Replacement
2019VolkswagenAtlas3.6LV6GASUpstream LeftOE Replacement
2019VolkswagenTeramont3.6LV6Upstream LeftOE Replacement
2018PorschePanamera4.0LV8Upstream LeftOE Replacement
2018VolkswagenAtlas3.6LV6GASUpstream LeftOE Replacement
2017PorschePanamera4.0LV8Upstream LeftOE Replacement

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

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