NTK OE Type Oxygen Sensor CHEVROLET TRAILBLAZER


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Part #: 21049
Notes: OE Type Oxygen Sensor
MSRP: $144.22
Your Price: $42.62

Specs

Mounting Type Threaded
Sensor Type Heated
Thread Diameter 18.000
Universal Or Specific Fit Specific
Wire Harness Length 16.7500
Wire Quantity 4

All Fitments

CADILLAC
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2006 - 2006 CTS ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2006 - 2006 CTS ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2007 - 2007 ESCALADE ALL V8 6.2 ALL ALL ALL Position: Downstream Left
2007 - 2007 ESCALADE ALL V8 6.2 ALL ALL ALL Position: Downstream Right
2007 - 2007 ESCALADE ESV ALL V8 6.2 ALL ALL ALL Position: Downstream Left
2007 - 2007 ESCALADE ESV ALL V8 6.2 ALL ALL ALL Position: Downstream Right
2007 - 2007 ESCALADE EXT ALL V8 6.2 ALL ALL ALL Position: Downstream Left
2007 - 2007 ESCALADE EXT ALL V8 6.2 ALL ALL ALL Position: Downstream Right
CHEVROLET
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2003 - 2005 ASTRO ALL V6 4.3 ALL ALL ALL Position: Downstream
2003 - 2005 ASTRO ALL V6 4.3 ALL ALL ALL Position: Upstream Right
2007 - 2007 AVALANCHE ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 AVALANCHE ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 AVALANCHE ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2007 - 2007 AVALANCHE ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2006 - 2006 SILVERADO 1500 ALL V8 4.8 ALL ALL ALL Position: Downstream Left
2006 - 2006 SILVERADO 1500 ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2007 - 2007 SILVERADO 1500 ALL V6 4.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 SILVERADO 1500 ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 SILVERADO 1500 CLASSIC ALL V6 4.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 SILVERADO 1500 CLASSIC ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 SILVERADO 1500 CLASSIC ALL V8 4.8 ALL ALL ALL Position: Downstream Left
2007 - 2007 SILVERADO 1500 CLASSIC ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2007 - 2007 SUBURBAN 1500 ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 SUBURBAN 1500 ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 SUBURBAN 1500 ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2007 - 2007 SUBURBAN 1500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2007 - 2007 SUBURBAN 2500 ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2007 - 2007 SUBURBAN 2500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2006 - 2007 TAHOE ALL V8 4.8 ALL ALL ALL Position: Downstream Left
2006 - 2007 TAHOE ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2007 - 2007 TAHOE ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 TAHOE ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2002 - 2003 TRAILBLAZER ALL L6 4.2 ALL ALL ALL Position: Upstream
2002 - 2003 TRAILBLAZER EXT ALL L6 4.2 ALL ALL ALL Position: Upstream
GMC
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2002 - 2003 ENVOY ALL L6 4.2 ALL ALL ALL Position: Upstream
2002 - 2003 ENVOY XL ALL L6 4.2 ALL ALL ALL Position: Upstream
2003 - 2005 SAFARI ALL V6 4.3 ALL ALL ALL Position: Downstream
2003 - 2005 SAFARI ALL V6 4.3 ALL ALL ALL Position: Upstream Right
2006 - 2006 SIERRA 1500 ALL V8 4.8 ALL ALL ALL Position: Downstream Left
2006 - 2006 SIERRA 1500 ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2007 - 2007 SIERRA 1500 ALL V6 4.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 SIERRA 1500 ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 SIERRA 1500 CLASSIC ALL V6 4.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 SIERRA 1500 CLASSIC ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 SIERRA 1500 CLASSIC ALL V8 4.8 ALL ALL ALL Position: Downstream Left
2007 - 2007 SIERRA 1500 CLASSIC ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2006 - 2007 YUKON ALL V8 4.8 ALL ALL ALL Position: Downstream Left
2006 - 2007 YUKON ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2007 - 2007 YUKON ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 YUKON ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 YUKON ALL V8 6.2 ALL ALL ALL Position: Downstream Left
2007 - 2007 YUKON ALL V8 6.2 ALL ALL ALL Position: Downstream Right
2007 - 2007 YUKON XL 1500 ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2007 - 2007 YUKON XL 1500 ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2007 - 2007 YUKON XL 1500 ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2007 - 2007 YUKON XL 1500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2007 - 2007 YUKON XL 1500 ALL V8 6.2 ALL ALL ALL Position: Downstream Left
2007 - 2007 YUKON XL 1500 ALL V8 6.2 ALL ALL ALL Position: Downstream Right
2007 - 2007 YUKON XL 2500 ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2007 - 2007 YUKON XL 2500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
HUMMER
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2007 - 2007 H2 ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2007 - 2007 H2 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
ISUZU
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2003 - 2003 ASCENDER ALL L6 4.2 ALL ALL ALL Position: Upstream
OLDSMOBILE
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2002 - 2003 BRAVADA ALL L6 4.2 ALL ALL ALL Position: Upstream

Product Description

Oxygen (O2) Sensors are used in modern automobiles to control the fuel and ignition systems to optimize a car’s performance in the areas of emissions and fuel economy. Sensors are located before and after the catalytic converter to check on the amount of oxygen in the exhaust. The sensor sends signals to the car’s on-board computer, which then can adjust several variables, including air/fuel ratio and timing, in order to bring the engine into the optimum operating range.

Each NTK Oxygen (O2) Sensor is:

  • Extensively Tested During Manufacture to Guarantee Quality and Reliability
  • Supplied With a Factory-Fitted OEM Connector for Easy Installation
  • Precision manufactured with a sensing element incorporating NTK’s premier technical ceramics

Oxygen (O2) Sensors should be tested at each tune-up. Failed or worn out oxygen sensors can cause:

  • Failed Emission Tests
  • Increased Fuel Consumption
  • Failed Catalytic Converters
  • Poor Driveability
  • Increased Emissions

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