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NGK 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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2006 | Cadillac | Escalade | Base |
| 2003-2006 | Cadillac | Escalade ESV | Base |
| 2003-2006 | Cadillac | Escalade EXT | Base |
| 2003-2004 | Chevrolet | Avalanche 2500 | Base |
| 2005-2006 | Chevrolet | Avalanche 2500 | LS |
| 2005-2006 | Chevrolet | Avalanche 2500 | LT |
| 2010-2015 | Chevrolet | Camaro | SS |
| 2014-2015 | Chevrolet | Camaro | Z/28 |
| 2012-2015 | Chevrolet | Camaro | ZL1 |
| 2014-2017 | Chevrolet | Caprice | PPV |
| 2013 | Chevrolet | Corvette | 427 |
| 2010-2013 | Chevrolet | Corvette | Z06 |
| 2011 | Chevrolet | Corvette | Z06 Carbon |
| 2009-2013 | Chevrolet | Corvette | ZR1 |
| 2004-2005 | Chevrolet | Silverado 1500 | LS |
| 2004-2006 | Chevrolet | Silverado 1500 | LT |
| 2003-2006 | Chevrolet | Silverado 1500 | SS |
| 2005 | Chevrolet | Silverado 1500 | Z71 Off-Road |
| 2007 | Chevrolet | Silverado 1500 Classic | LT |
| 2007 | Chevrolet | Silverado 1500 Classic | SS |
| 2005 | Chevrolet | Silverado 1500 HD | Base |
| 2003,2005 | Chevrolet | Silverado 1500 HD | LS |
| 2003,2005-2006 | Chevrolet | Silverado 1500 HD | LT |
| 2007 | Chevrolet | Silverado 1500 HD Classic | LT |
| 2003-2004 | Chevrolet | Silverado 2500 | Base |
| 2003-2004 | Chevrolet | Silverado 2500 | LS |
| 2003-2004 | Chevrolet | Silverado 2500 | LT |
| 2004 | Chevrolet | Silverado 2500 | WT |
| 2003-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2003-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2003-2013 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2013 | Chevrolet | Silverado 2500 HD | LTZ |
| 2003-2013 | 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 |
| 2003-2005 | Chevrolet | Silverado 3500 | Base |
| 2003-2006 | Chevrolet | Silverado 3500 | LS |
| 2003-2006 | Chevrolet | Silverado 3500 | LT |
| 2004,2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
| 2007-2015 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2012,2014-2015 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2015 | Chevrolet | Silverado 3500 HD | WT |
| 2014-2017 | Chevrolet | SS | Base |
| 2006 | Chevrolet | Suburban 1500 | LTZ |
| 2003-2006 | Chevrolet | Suburban 2500 | LS |
| 2003-2006 | Chevrolet | Suburban 2500 | LT |
| 2004 | GMC | Sierra 1500 | Base |
| 2003-2006 | GMC | Sierra 1500 | Denali |
| 2004-2006 | GMC | Sierra 1500 | SLE |
| 2004-2006 | GMC | Sierra 1500 | SLT |
| 2004 | GMC | Sierra 1500 | WT |
| 2007 | GMC | Sierra 1500 Classic | Denali |
| 2007 | GMC | Sierra 1500 Classic | SLE |
| 2007 | GMC | Sierra 1500 Classic | SLT |
| 2003,2005-2006 | GMC | Sierra 1500 HD | SLE |
| 2003,2005-2006 | GMC | Sierra 1500 HD | SLT |
| 2007 | GMC | Sierra 1500 HD Classic | SLE |
| 2007 | GMC | Sierra 1500 HD Classic | SLT |
| 2003-2004 | GMC | Sierra 2500 | Base |
| 2003-2004 | GMC | Sierra 2500 | SLE |
| 2003-2004 | GMC | Sierra 2500 | SLT |
| 2003-2004 | GMC | Sierra 2500 | WT |
| 2003-2005 | GMC | Sierra 2500 HD | Base |
| 2006 | GMC | Sierra 2500 HD | SL |
| 2003-2013 | GMC | Sierra 2500 HD | SLE |
| 2003-2013 | GMC | Sierra 2500 HD | SLT |
| 2003-2013 | 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 |
| 2003-2005 | GMC | Sierra 3500 | Base |
| 2006 | GMC | Sierra 3500 | SL |
| 2003-2006 | GMC | Sierra 3500 | SLE |
| 2003-2006 | GMC | Sierra 3500 | SLT |
| 2004-2006 | GMC | Sierra 3500 | 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 |
| 2015 | GMC | Sierra 3500 HD | Base |
| 2007-2015 | GMC | Sierra 3500 HD | SLE |
| 2007-2015 | GMC | Sierra 3500 HD | SLT |
| 2007-2014 | GMC | Sierra 3500 HD | WT |
| 2003-2006 | GMC | Yukon | Denali |
| 2003-2006 | GMC | Yukon XL 1500 | Denali |
| 2003-2006 | GMC | Yukon XL 2500 | SLE |
| 2003-2006 | GMC | Yukon XL 2500 | SLT |
| 2003-2006 | Hummer | H2 | Base |
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NGK 21549 Specifications
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NGK 21549 Specifications
Is this item in stock?If it is purchasable it is unstock and available for shipment as soon as today.
How long will it take to get it?
Shipping to US addresses generally takes 2 to 4 business days to arrive depending on your location. We also offer Next Day Air and 2nd Day Air if you need it faster.
International shipping is subject to import duties and taxes and we usually see 4 day to 2 week ship times to most locations outside the USA.
Does this fit my vehicle?
We have fitment charts in most of our vehicle specific products. If you do not see your vehicle, please do not hesitate to ask via chat or contact form.
What is your Return Policy?
Our return policy can be found here: Return Policy
NGK 21549 - Oxygen Sensors
NGK Chevrolet Avalanche 2500 2006-2003 Direct Fit Oxygen Sensor
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NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part...
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