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.


  • OEM QUALITY: NTK is the world's largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
  • PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
  • OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
  • EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
  • EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
  • NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
MakeModelYear(s)
CadillacCTS2004 -2005
CadillacXLR2004 -2005
CadillacSRX2004 -2006
CadillacSTS2005 -2006
InfinitiFX352004 -2008
InfinitiG352004 -2007
InfinitiM452006 -2010
InfinitiFX452006 -2008
InfinitiQX562004 -2006
InfinitiM352006 -2008
InfinitiQ452006 -2006
Nissan350Z2005 -2006
NissanQuest2004 -2009
NissanPathfinder2005 -2006
NissanSentra2000 -2006
NissanMaxima2004 -2008
NissanTitan2004 -2006
NissanMurano2004 -2007
NissanXterra2005 -2006
NissanAltima2004 -2006
NissanFrontier2005 -2006
NissanArmada2004 -2006
VolvoV502005 -2011
VolvoC302007 -2013
VolvoS402004 -2011
VolvoV701999 -1999
VolvoC701999 -1999
VolvoC702006 -2013
VolvoS701999 -1999
VolvoS602012 -2012


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