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NTKPart #: 25589
NTK 25589 Oxygen Sensor - Upstream Left or Upstream Right
⚙️ 54 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$147.78Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
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*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
📦Direct Fit Oxygen Sensor, Upstream Right and Upstream Left
🚗Fitment: Audi and Volkswagen, A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, Passat, S4, and S6
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Oxygen Sensor options
NTK 25589 Oxygen Sensor - Upstream Left or Upstream Right
| Brand | NTK |
| Part Number | 25589 |
| Position | Direct Fit Oxygen Sensor, Upstream Right and Upstream Left |
| Wiring Harness Length | 24.5000 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
This part fits 54 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Volkswagen | Passat | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2005 | Volkswagen | Passat | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2004 | Audi | A6 Quattro | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2004 | Audi | A6 Quattro | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2004 | Volkswagen | Passat | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2004 | Volkswagen | Passat | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2003 | Audi | A6 Quattro | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2003 | Audi | A6 Quattro | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2003 | Audi | S6 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2003 | Audi | S6 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2003 | Volkswagen | Passat | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2003 | Volkswagen | Passat | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2002 | Audi | A6 Quattro | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2002 | Audi | A6 Quattro | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2002 | Audi | S4 | 2.7L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2002 | Audi | S4 | 2.7L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2002 | Audi | S6 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2002 | Audi | S6 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2002 | Volkswagen | Passat | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2002 | Volkswagen | Passat | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A4 | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A4 | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A4 Quattro | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A4 Quattro | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 Quattro | 4.2L | V8 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 Quattro | 4.2L | V8 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 Quattro | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 Quattro | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 Quattro | 2.7L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | A6 Quattro | 2.7L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | Allroad Quattro | 2.7L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | Allroad Quattro | 2.7L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Audi | S4 | 2.7L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Audi | S4 | 2.7L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2001 | Volkswagen | Passat | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2001 | Volkswagen | Passat | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A4 | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A4 | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A4 Quattro | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A4 Quattro | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 Quattro | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 Quattro | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 Quattro | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 Quattro | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 Quattro | 2.7L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | A6 Quattro | 2.7L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Audi | S4 | 2.7L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Audi | S4 | 2.7L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2000 | Volkswagen | Passat | 2.8L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2000 | Volkswagen | Passat | 2.8L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
* 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:
078906265M160231607316287213-3084234-481275-2750ES20160OS2096OS5025SG1210
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.