NGK Chevrolet Avalanche 2500 2006-2003 Direct Fit Oxygen Sensor Part #21549

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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology. NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.

• ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

The NGK Chevrolet Avalanche 2500 2006-2003 Direct Fit Oxygen Sensor Part #21549 is an essential component designed to optimize your vehicle's engine performance and emissions. Manufactured by NGK, a trusted name in automotive sensors, this oxygen sensor provides precise feedback to your vehicle’s engine control unit (ECU), helping to maintain the ideal air-fuel mixture for efficient combustion. Its direct fit design ensures ease of installation and compatibility with specific Chevrolet models, including the Avalanche 2500 and Silverado 2500 HD from 2006 to 2003. This sensor plays a critical role in your vehicle's on-board diagnostic system, monitoring catalytic converter efficiency and fuel delivery, thus contributing to improved fuel economy and reduced emissions.

Fitment:
2003 Cadillac Escalade Base
2003 Cadillac Escalade ESV Base
2003 Cadillac Escalade EXT Base
2003 Chevrolet Avalanche 2500 Base
2003 Chevrolet Silverado 1500 SS
2003 Chevrolet Silverado 1500 HD LS
2003 Chevrolet Silverado 1500 HD LT
2003 Chevrolet Silverado 2500 Base
2003 Chevrolet Silverado 2500 LS
2003 Chevrolet Silverado 2500 LT
2003 Chevrolet Silverado 2500 HD Base
2003 Chevrolet Silverado 2500 HD LS
2003 Chevrolet Silverado 2500 HD LT
2003 Chevrolet Silverado 2500 HD WT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2003 Chevrolet Silverado 3500 LT
2003 Chevrolet Suburban 2500 LS
2003 Chevrolet Suburban 2500 LT
2003 GMC Sierra 1500 Denali
2003 GMC Sierra 1500 HD SLE
2003 GMC Sierra 1500 HD SLT
2003 GMC Sierra 2500 Base
2003 GMC Sierra 2500 SLE
2003 GMC Sierra 2500 SLT
2003 GMC Sierra 2500 WT
2003 GMC Sierra 2500 HD Base
2003 GMC Sierra 2500 HD SLE
2003 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2003 GMC Yukon Denali
2003 GMC Yukon XL 1500 Denali
2003 GMC Yukon XL 2500 SLE
2003 GMC Yukon XL 2500 SLT
2003 Hummer H2 Base
2004 Cadillac Escalade Base
2004 Cadillac Escalade ESV Base
2004 Cadillac Escalade EXT Base
2004 Chevrolet Avalanche 2500 Base
2004 Chevrolet Silverado 1500 LS
2004 Chevrolet Silverado 1500 LT
2004 Chevrolet Silverado 1500 SS
2004 Chevrolet Silverado 2500 Base
2004 Chevrolet Silverado 2500 LS
2004 Chevrolet Silverado 2500 LT
2004 Chevrolet Silverado 2500 WT
2004 Chevrolet Silverado 2500 HD Base
2004 Chevrolet Silverado 2500 HD LS
2004 Chevrolet Silverado 2500 HD LT
2004 Chevrolet Silverado 2500 HD WT
2004 Chevrolet Silverado 3500 Base
2004 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2004 Chevrolet Suburban 2500 LS
2004 Chevrolet Suburban 2500 LT
2004 GMC Sierra 1500 Base
2004 GMC Sierra 1500 Denali
2004 GMC Sierra 1500 SLE
2004 GMC Sierra 1500 SLT
2004 GMC Sierra 1500 WT
2004 GMC Sierra 2500 Base
2004 GMC Sierra 2500 SLE
2004 GMC Sierra 2500 SLT
2004 GMC Sierra 2500 WT
2004 GMC Sierra 2500 HD Base
2004 GMC Sierra 2500 HD SLE
2004 GMC Sierra 2500 HD SLT
2004 GMC Sierra 2500 HD WT
2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 WT
2004 GMC Yukon Denali
2004 GMC Yukon XL 1500 Denali
2004 GMC Yukon XL 2500 SLE
2004 GMC Yukon XL 2500 SLT
2004 Hummer H2 Base
2005 Cadillac Escalade Base
2005 Cadillac Escalade ESV Base
2005 Cadillac Escalade EXT Base
2005 Chevrolet Avalanche 2500 LS
2005 Chevrolet Avalanche 2500 LT
2005 Chevrolet Silverado 1500 LS
2005 Chevrolet Silverado 1500 LT
2005 Chevrolet Silverado 1500 SS
2005 Chevrolet Silverado 1500 Z71 Off-Road
2005 Chevrolet Silverado 1500 HD Base
2005 Chevrolet Silverado 1500 HD LS
2005 Chevrolet Silverado 1500 HD LT
2005 Chevrolet Silverado 2500 HD Base
2005 Chevrolet Silverado 2500 HD LS
2005 Chevrolet Silverado 2500 HD LT
2005 Chevrolet Silverado 2500 HD WT
2005 Chevrolet Silverado 3500 Base
2005 Chevrolet Silverado 3500 LS
2005 Chevrolet Silverado 3500 LT
2005 Chevrolet Suburban 2500 LS
2005 Chevrolet Suburban 2500 LT
2005 GMC Sierra 1500 Denali
2005 GMC Sierra 1500 SLE
2005 GMC Sierra 1500 SLT
2005 GMC Sierra 1500 HD SLE
2005 GMC Sierra 1500 HD SLT
2005 GMC Sierra 2500 HD Base
2005 GMC Sierra 2500 HD SLE
2005 GMC Sierra 2500 HD SLT
2005 GMC Sierra 2500 HD WT
2005 GMC Sierra 3500 Base
2005 GMC Sierra 3500 SLE
2005 GMC Sierra 3500 SLT
2005 GMC Sierra 3500 WT
2005 GMC Yukon Denali
2005 GMC Yukon XL 1500 Denali
2005 GMC Yukon XL 2500 SLE
2005 GMC Yukon XL 2500 SLT
2005 Hummer H2 Base
2006 Cadillac Escalade Base
2006 Cadillac Escalade ESV Base
2006 Cadillac Escalade EXT Base
2006 Chevrolet Avalanche 2500 LS
2006 Chevrolet Avalanche 2500 LT
2006 Chevrolet Silverado 1500 LT
2006 Chevrolet Silverado 1500 SS
2006 Chevrolet Silverado 1500 HD LT
2006 Chevrolet Silverado 2500 HD LS
2006 Chevrolet Silverado 2500 HD LT
2006 Chevrolet Silverado 2500 HD WT
2006 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2006 Chevrolet Suburban 1500 LTZ
2006 Chevrolet Suburban 2500 LS
2006 Chevrolet Suburban 2500 LT
2006 GMC Sierra 1500 Denali
2006 GMC Sierra 1500 SLE
2006 GMC Sierra 1500 SLT
2006 GMC Sierra 1500 HD SLE
2006 GMC Sierra 1500 HD SLT
2006 GMC Sierra 2500 HD SL
2006 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SLT
2006 GMC Sierra 2500 HD WT
2006 GMC Sierra 3500 SL
2006 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 WT
2006 GMC Yukon Denali
2006 GMC Yukon XL 1500 Denali
2006 GMC Yukon XL 2500 SLE
2006 GMC Yukon XL 2500 SLT
2006 Hummer H2 Base
2007 Chevrolet Silverado 1500 Classic LT
2007 Chevrolet Silverado 1500 Classic SS
2007 Chevrolet Silverado 1500 HD Classic LT
2007 Chevrolet Silverado 2500 HD LT
2007 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2007 Chevrolet Silverado 3500 HD LT
2007 Chevrolet Silverado 3500 HD LTZ
2007 Chevrolet Silverado 3500 HD WT
2007 GMC Sierra 1500 Classic Denali
2007 GMC Sierra 1500 Classic SLE
2007 GMC Sierra 1500 Classic SLT
2007 GMC Sierra 1500 HD Classic SLE
2007 GMC Sierra 1500 HD Classic SLT
2007 GMC Sierra 2500 HD SLE
2007 GMC Sierra 2500 HD SLT
2007 GMC Sierra 2500 HD WT
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2007 GMC Sierra 3500 HD SLE
2007 GMC Sierra 3500 HD SLT
2007 GMC Sierra 3500 HD WT
2008 Chevrolet Silverado 2500 HD LT
2008 Chevrolet Silverado 2500 HD LTZ
2008 Chevrolet Silverado 2500 HD WT
2008 Chevrolet Silverado 3500 HD LT
2008 Chevrolet Silverado 3500 HD LTZ
2008 Chevrolet Silverado 3500 HD WT
2008 GMC Sierra 2500 HD SLE
2008 GMC Sierra 2500 HD SLT
2008 GMC Sierra 2500 HD WT
2008 GMC Sierra 3500 HD SLE
2008 GMC Sierra 3500 HD SLT
2008 GMC Sierra 3500 HD WT
2009 Chevrolet Corvette ZR1
2009 Chevrolet Silverado 2500 HD LT
2009 Chevrolet Silverado 2500 HD LTZ
2009 Chevrolet Silverado 2500 HD WT
2009 Chevrolet Silverado 3500 HD LT
2009 Chevrolet Silverado 3500 HD LTZ
2009 Chevrolet Silverado 3500 HD WT
2009 GMC Sierra 2500 HD SLE
2009 GMC Sierra 2500 HD SLT
2009 GMC Sierra 2500 HD WT
2009 GMC Sierra 3500 HD SLE
2009 GMC Sierra 3500 HD SLT
2009 GMC Sierra 3500 HD WT
2010 Chevrolet Camaro SS
2010 Chevrolet Corvette Z06
2010 Chevrolet Corvette ZR1
2010 Chevrolet Silverado 2500 HD LT
2010 Chevrolet Silverado 2500 HD LTZ
2010 Chevrolet Silverado 2500 HD WT
2010 Chevrolet Silverado 3500 HD LT
2010 Chevrolet Silverado 3500 HD LTZ
2010 Chevrolet Silverado 3500 HD WT
2010 GMC Sierra 2500 HD SLE
2010 GMC Sierra 2500 HD SLT
2010 GMC Sierra 2500 HD WT
2010 GMC Sierra 3500 HD SLE
2010 GMC Sierra 3500 HD SLT
2010 GMC Sierra 3500 HD WT
2011 Chevrolet Camaro SS
2011 Chevrolet Corvette Z06
2011 Chevrolet Corvette Z06 Carbon
2011 Chevrolet Corvette ZR1
2011 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD WT
2011 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD WT
2011 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD WT
2012 Chevrolet Camaro SS
2012 Chevrolet Camaro ZL1
2012 Chevrolet Corvette Z06
2012 Chevrolet Corvette ZR1
2012 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD WT
2012 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD WT
2012 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD WT
2013 Chevrolet Camaro SS
2013 Chevrolet Camaro ZL1
2013 Chevrolet Corvette 427
2013 Chevrolet Corvette Z06
2013 Chevrolet Corvette ZR1
2013 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD WT
2013 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD WT
2013 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD WT
2014 Chevrolet Camaro SS
2014 Chevrolet Camaro Z/28
2014 Chevrolet Camaro ZL1
2014 Chevrolet Caprice PPV
2014 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD WT
2014 Chevrolet SS Base
2014 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD WT
2015 Chevrolet Camaro SS
2015 Chevrolet Camaro Z/28
2015 Chevrolet Camaro ZL1
2015 Chevrolet Caprice PPV
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2015 Chevrolet SS Base
2015 GMC Sierra 3500 HD Base
2015 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLT
2016 Chevrolet Caprice PPV
2016 Chevrolet SS Base
2017 Chevrolet Caprice PPV
2017 Chevrolet SS Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1