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Denso 234-5161 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream RightOE Quality 60-Day Returns
Denso 234-5161 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right - view 1
Denso 234-5161 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right - view 2
Part #: 234-5161

Denso 234-5161 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

OE Style, Upstream, Upstream Left, and Upstream Right
⚙️ 29 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$137.40Free 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 Style, Upstream, Upstream Left, and Upstream Right
🚗Fitment: Audi, A8 Quattro, RS7, S6, S7, and S8
🔄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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Denso 234-5161 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right
BrandDenso
Part Number234-5161
PositionOE Style, Upstream, Upstream Left, and Upstream Right
Wiring Harness Length24.61
Sensor TypeHeated
Universal Or Specific FitSpecific
Wire Quantity5
Grade TypeRegular
Connector GenderMale
Thread Diameter0.711

This part fits 29 vehicles. Search below:

YearMakeModelPositionNotes
2018AudiA8 QuattroUpstreamCylinder 1,2,3,4; OE Style
2018AudiRS7UpstreamCylinder 1,2,3,4; OE Style
2018AudiS6UpstreamCylinder 1,2,3,4; OE Style
2018AudiS7UpstreamCylinder 1,2,3,4; OE Style
2018AudiS8Upstream RightO.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style
2017AudiA8 QuattroUpstream LeftOE Style
2017AudiRS7UpstreamCylinder 1,2,3,4; OE Style
2017AudiS6UpstreamCylinder 1,2,3,4; OE Style
2017AudiS7UpstreamCylinder 1,2,3,4; OE Style
2017AudiS8UpstreamCylinder 1,2,3,4; OE Style
2016AudiA8 QuattroUpstream LeftOE Style
2016AudiRS7UpstreamCylinder 1,2,3,4; OE Style
2016AudiS6UpstreamCylinder 1,2,3,4; OE Style
2016AudiS7UpstreamCylinder 1,2,3,4; OE Style
2016AudiS8UpstreamCylinder 1,2,3,4; OE Style
2015AudiA8 QuattroUpstreamCylinder 1,2,3,4; OE Style
2015AudiRS7UpstreamCylinder 1,2,3,4; OE Style
2015AudiS6UpstreamCylinder 1,2,3,4; OE Style
2015AudiS7UpstreamCylinder 1,2,3,4; OE Style
2015AudiS8UpstreamCylinder 1,2,3,4; OE Style
2014AudiA8 QuattroUpstreamCylinder 1,2,3,4; OE Style
2014AudiRS7UpstreamCylinder 1,2,3,4; OE Style
2014AudiS6UpstreamCylinder 1,2,3,4; OE Style
2014AudiS7UpstreamCylinder 1,2,3,4; OE Style
2014AudiS8UpstreamCylinder 1,2,3,4; OE Style
2013AudiA8 QuattroUpstreamCylinder 1,2,3,4; OE Style
2013AudiS6UpstreamCylinder 1,2,3,4; OE Style
2013AudiS7UpstreamCylinder 1,2,3,4; OE Style
2013AudiS8UpstreamCylinder 1,2,3,4; OE Style

* 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:

17056

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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