NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2005 | Audi | A4 | Base |
| 2003-2006 | Audi | A4 | Cabriolet |
| 2001-2005 | Audi | A4 Quattro | Avant |
| 2001-2005 | Audi | A4 Quattro | Base |
| 2005-2006 | Audi | A8 Quattro | Base |
| 2004-2006 | Audi | A8 Quattro | L |
| 2004-2006 | Audi | TT Quattro | Base |
| 2006 | Audi | TT Quattro | Special Edition |
| 2003-2006 | BMW | 325Ci | Base |
| 2003-2005 | BMW | 325i | Base |
| 2004-2005 | BMW | 545i | Base |
| 2004-2005 | BMW | 645Ci | Base |
| 2003-2006 | Porsche | Cayenne | S |
| 2001-2005 | Volkswagen | Beetle | GL |
| 2001-2005 | Volkswagen | Beetle | GLS |
| 2001-2002 | Volkswagen | Beetle | Sport |
| 2001-2006 | Volkswagen | Golf | GL |
| 2001-2006 | Volkswagen | Golf | GLS |
| 2000-2005 | Volkswagen | Jetta | GL |
| 2000-2005 | Volkswagen | Jetta | GLS |
| 2003-2005 | Volkswagen | Passat | GL |
| 2001-2005 | Volkswagen | Passat | GLS |
| 2004-2005 | Volkswagen | Passat | GLS 4 Motion |
- 2001-audi-a4-base-esi2483586
- 2001-audi-a4-quattro-base-esi3302066
- 2002-audi-a4-base-esi2717785
- 2002-audi-a4-quattro-base-esi7132817
- 2003-audi-a4-base-esi1892262
- 2003-audi-a4-quattro-base-esi3653067
- 2003-bmw-325i-base-esi1748961
- 2003-porsche-cayenne-s-esi8736718
- 2004-audi-a4-base-esi5818286
- 2004-audi-a4-quattro-base-esi6672820
- 2004-audi-a8-quattro-l-esi9648685
- 2004-audi-tt-quattro-base-esi6111419
- 2004-bmw-325i-base-esi4654439
- 2004-bmw-545i-base-esi4378085
- 2004-porsche-cayenne-s-esi7006165
- 2005-audi-a4-base-esi1847142
- 2005-audi-a4-quattro-base-esi9895111
- 2005-audi-a8-quattro-base-esi1915354
- 2005-audi-a8-quattro-l-esi5559047
- 2005-audi-tt-quattro-base-esi4841344
- 2005-bmw-325i-base-esi2286068
- 2005-bmw-545i-base-esi1758992
- 2005-porsche-cayenne-s-esi2419805
- 2006-audi-a8-quattro-base-esi1590394
- 2006-audi-a8-quattro-l-esi7468305
- 2006-audi-tt-quattro-base-esi5366583
- Filtered:Abandoned
- fits_2000-2005`Volkswagen`Jetta`GL~2000-2005`Volkswagen`Jetta`GLS~2003-2005`Volkswagen`Passat`GL~2001-2005`Volkswagen`Passat`GLS~2004-2005`Volkswagen`Passat`GLS 4 Motion
- fits_2001-2005`Audi`A4`Base~2003-2006`Audi`A4`Cabriolet~2001-2005`Audi`A4 Quattro`Avant~2001-2005`Audi`A4 Quattro`Base~2005-2006`Audi`A8 Quattro`Base~2004-2006`Audi`A8 Quattro`L~2004-2006`Audi`TT Quattro`Base~2006`Audi`TT Quattro`Special Edition
- fits_2003-2005`BMW`325i`Base~2004-2005`BMW`545i`Base~2004-2005`BMW`645Ci`Base~2003-2006`Porsche`Cayenne`S~2001-2005`Volkswagen`Beetle`GL~2001-2005`Volkswagen`Beetle`GLS~2001-2002`Volkswagen`Beetle`Sport~2001-2006`Volkswagen`Golf`GL