NTK
NTK Oxygen Sensor 21549
NTK Oxygen Sensor 21549
Part number: 3U0HV
Regular price
$74.07 USD
Regular price
Sale price
$74.07 USD
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
NTK Oxygen Sensor 21549, with the part number and details listed below. Sensors tell the engine computer what is happening so it can adjust fuel, timing and gauges.
Quick facts
- Brand: NTK
- Part type: Sensor
Listed fitment
- 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 LT, LS
- 2011 - 2012 Chevrolet Camaro 2SS, 1LT, 1SS
- 2010 - 2015 Chevrolet Camaro LS, LT, SS
- 2014 - 2015 Chevrolet Camaro Z/28
- 2012 - 2015 Chevrolet Camaro ZL1
- 2014 - 2017 Chevrolet Caprice PPV
- 2013 Chevrolet Corvette 427, LT
- 2009 - 2013 Chevrolet Corvette Base, Z06, ZR1
- 2010 - 2013 Chevrolet Corvette Grand Sport
- 2011 Chevrolet Corvette Z06 Carbon
- 2004 - 2006 Chevrolet Silverado 1500 Hybrid
- 2003 - 2006 Chevrolet Silverado 1500 WT, SS, LS, Base, LT
- 2004 Chevrolet Silverado 1500 Z71
- 2007 Chevrolet Silverado 1500 Classic Hybrid, LS, SS, LT, WT
- 2005 Chevrolet Silverado 1500 HD Base
- 2003 - 2005 Chevrolet Silverado 1500 HD LS
- 2003 - 2006 Chevrolet Silverado 1500 HD LT
- 2007 Chevrolet Silverado 1500 HD Classic LT
- 2003 - 2004 Chevrolet Silverado 2500 400 SS, Base, LS, 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, WT
- 2007 - 2013 Chevrolet Silverado 2500 HD LTZ
- 2007 Chevrolet Silverado 2500 HD Classic LT, WT, LS
- 2006 Chevrolet Silverado 3500 HD
- 2003 - 2006 Chevrolet Silverado 3500 LT, LS, Base
- 2004 - 2006 Chevrolet Silverado 3500 WT
- 2007 Chevrolet Silverado 3500 Classic WT, LS, LT
- 2015 Chevrolet Silverado 3500 HD High Country
- 2007 - 2015 Chevrolet Silverado 3500 HD WT, LT, LTZ
- 2014 - 2017 Chevrolet SS Base
- 2006 Chevrolet Suburban 1500 LTZ, LT, Base, Z71, LS
- 2003 - 2006 Chevrolet Suburban 2500 LS, LT
- 2003 - 2005 GMC Sierra 1500 Base
- 2005 - 2006 GMC Sierra 1500 Hybrid
- …and 26 more
Tip: Read the code, check the wiring and connector, and clear codes after the new sensor is in.
Before you order: fitment and what to plan
Sensors tell the engine computer what is happening so it can adjust fuel, timing and gauges.
Fitment notes
- Specs, lead time and warranty come from NTK and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- Connector and wiring. Corroded connectors mimic a bad sensor.
More for your car: Oxygen (O2) Sensors · Batteries & electrical
Questions about sensor
Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Will a new sensor clear my check-engine light?
If the sensor was the cause, the light usually goes off after codes are cleared or after a few drive cycles.
Where do specs and warranty details come from?
From NTK. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
Questions & answers
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