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.
- ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
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| Year | Make | Model | Submodel |
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| 2017-2018 | Audi | A4 | Premium Plus |
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| 2017-2019 | Audi | A4 allroad | Premium |
| 2017-2019 | Audi | A4 allroad | Premium Plus |
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| 2017-2019 | Audi | A4 Quattro | Prestige |
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| 2018-2019 | Audi | A5 Quattro | Premium |
| 2018-2019 | Audi | A5 Quattro | Premium Plus |
| 2018-2019 | Audi | A5 Quattro | Prestige |
| 2018-2019 | Audi | A5 Sportback | Premium |
| 2018-2019 | Audi | A5 Sportback | Premium Plus |
| 2018-2019 | Audi | A5 Sportback | Prestige |
| 2011-2015 | Audi | A8 Quattro | Base |
| 2011-2016 | Audi | A8 Quattro | L |
| 2017-2018 | Audi | A8 Quattro | L Sport |
| 2013-2016 | Audi | Q5 | Hybrid Prestige |
| 2018 | Audi | Q5 | Premium |
| 2018 | Audi | Q5 | Premium Plus |
| 2018 | Audi | Q5 | Prestige |
| 2017-2019 | Audi | Q7 | Premium |
| 2017-2019 | Audi | Q7 | Premium Plus |
| 2013-2015 | Audi | RS5 | Base |
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| 2016-2018 | Audi | S6 | Premium Plus |
| 2016-2018 | Audi | S6 | Prestige |
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| 2017-2018 | Audi | S7 | Premium Plus |
| 2017-2018 | Audi | S7 | Prestige |
| 2013-2016 | Audi | S8 | Base |
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| 2015 | Bentley | Continental | GT V8 |
| 2015 | Bentley | Continental | GT V8 S |
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| 2014-2017 | Volkswagen | Passat | S |
| 2014-2017 | Volkswagen | Passat | SE |
| 2016 | Volkswagen | Passat | SEL |
| 2014-2017 | Volkswagen | Passat | SEL Premium |
| 2015 | Volkswagen | Passat | Sport |
| 2014-2015 | Volkswagen | Passat | Wolfsburg Edition |